WO2026007770A1 - 一种铝合金截止阀制造方法及铝合金截止阀 - Google Patents

一种铝合金截止阀制造方法及铝合金截止阀

Info

Publication number
WO2026007770A1
WO2026007770A1 PCT/CN2025/103420 CN2025103420W WO2026007770A1 WO 2026007770 A1 WO2026007770 A1 WO 2026007770A1 CN 2025103420 W CN2025103420 W CN 2025103420W WO 2026007770 A1 WO2026007770 A1 WO 2026007770A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
aluminum alloy
forming part
valve body
flange
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2025/103420
Other languages
English (en)
French (fr)
Inventor
范熠明
骆斌
华立钢
单宇宽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Dunan Artificial Environment Co Ltd
Original Assignee
Zhejiang Dunan Artificial Environment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202421545152.5U external-priority patent/CN222669079U/zh
Priority claimed from CN202411389529.7A external-priority patent/CN119282607B/zh
Application filed by Zhejiang Dunan Artificial Environment Co Ltd filed Critical Zhejiang Dunan Artificial Environment Co Ltd
Publication of WO2026007770A1 publication Critical patent/WO2026007770A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor

Definitions

  • This application belongs to the field of gate valve technology, specifically relating to a manufacturing method of an aluminum alloy gate valve and the aluminum alloy gate valve itself.
  • a method for manufacturing an aluminum alloy gate valve and an aluminum alloy gate valve are provided.
  • a method for manufacturing an aluminum alloy gate valve specifically includes the following steps:
  • step (3) Homogenization treatment of aluminum alloy rods: The aluminum alloy rods obtained by cooling in step (2) are placed in a homogenizing furnace for homogenization treatment;
  • Shaped extrusion molding Cut the aluminum alloy rod after homogenization treatment in (3) into short rods, heat the short rods to 450-550°C, and use a 2000T or higher positive extrusion press to extrude the material.
  • the temperature of the extrusion die is controlled at 400-500°C.
  • Heat treatment strengthening The extruded profile is cooled to room temperature by water for a certain period of time, then heated to a certain temperature and held for several hours for a certain period of time, then heated to a certain temperature and held for several hours for a certain period of time, and finally air-cooled after being taken out of the furnace to obtain a long section valve seat aluminum alloy profile blank with a cross-shaped longitudinal section.
  • the height of the long section valve seat aluminum alloy profile blank in the vertical direction is not less than the maximum height of the gate valve in the vertical direction, and the width of the long section valve seat aluminum alloy profile blank is not less than the width of the gate valve.
  • the height is the height of the longitudinal section of the long section valve seat aluminum alloy profile blank, and the width is the width of the longitudinal section of the long section valve seat aluminum alloy profile blank.
  • the aluminum alloy stop valve is machined on a lathe.
  • Figure 1 is a schematic diagram of the aluminum alloy gate valve profile blank structure according to an embodiment of this application.
  • Figure 2 is a structural dimension diagram of the aluminum alloy gate valve profile blank according to an embodiment of this application.
  • Figure 3 is a schematic diagram of the structure of an aluminum alloy gate valve according to an embodiment of this application.
  • Figure 4 is a top view of an aluminum alloy shut-off valve according to an embodiment of this application.
  • Figure 5 is a schematic diagram of the aluminum alloy gate valve profile blank structure according to an embodiment of this application.
  • Figure 6 is a structural dimension diagram of the aluminum alloy gate valve profile blank according to an embodiment of this application.
  • Figure 7 is a structural schematic diagram of an aluminum alloy gate valve according to an embodiment of this application.
  • Figure 9 is a cross-sectional view along line A-A in Figure 8 of this application.
  • Figure 10 is a cross-sectional view along line B-B in Figure 8.
  • Figure 12 is a top view of the valve body in an aluminum alloy gate valve according to an embodiment of this application.
  • Figure 14 is a top view of the flange of an aluminum alloy gate valve according to an embodiment of this application.
  • Figure 15 is a longitudinal cross-sectional view of the flange of an aluminum alloy gate valve according to an embodiment of this application.
  • Figure 17 is a structural schematic diagram of the flange in Figure 16.
  • This application provides a method for manufacturing an aluminum alloy gate valve, and an aluminum alloy gate valve manufactured using this method.
  • a method for manufacturing an aluminum alloy gate valve specifically includes the following steps:
  • Shaped extrusion molding Cut the aluminum alloy rod after homogenization treatment in (3) into short rods, heat the short rods to 450-550°C, and use a 2000T or higher positive extrusion press to extrude the material.
  • the temperature of the extrusion die is controlled at 400-500°C.
  • the extrusion molding parameters used in this step are the same.
  • Heat treatment strengthening The extruded profile is cooled to room temperature by water within 20 seconds, then heated to 180°C within 30 minutes within 12 hours and held for 2 hours, then heated to 220°C within 10 minutes and held for 2 hours. After being taken out of the furnace, it is air-cooled to obtain a long section valve seat aluminum alloy profile blank with a cross-shaped longitudinal section.
  • the height h of the long section valve seat aluminum alloy profile blank in the height direction Z is not less than the maximum height of the stop valve in the height direction Z.
  • the width g of the long section valve seat aluminum alloy profile blank is not less than the width of the stop valve.
  • the height h is the height of the longitudinal section of the long section valve seat aluminum alloy profile blank
  • the width g is the width of the longitudinal section of the long section valve seat aluminum alloy profile blank.
  • Cutting and blanking Cut the heat-treated and strengthened long section valve seat aluminum alloy profile blank into multiple aluminum alloy gate valve blanks according to the width value of the gate valve.
  • the width is the width m along the central axis of the gate valve valve nozzle.
  • the width is the width n perpendicular to both the central axis of the valve nozzle and the central axis of the valve core, i.e., the width L4 of the mounting part.
  • the aluminum alloy stop valve is machined on a lathe.
  • the selected aluminum alloy is a heat-treatable aluminum alloy, which can be a 2-series, 6-series, or 7-series aluminum alloy.
  • the temperature and time parameters during melting are determined according to the selected aluminum alloy material type.
  • the casting rod needs to be homogenized and annealed.
  • step (3) different homogenization process conditions are adopted according to the different aluminum alloy types selected. For example, when 6061 aluminum alloy is selected, the aluminum alloy rod is first heated from room temperature to 520°C-540°C within 3 hours and held for 12 hours. Then it is cooled to 300°C with the furnace and then air-cooled to room temperature.
  • this application adopts a pressure forming process, which directly omits the forging step in the relevant methods.
  • This avoids the technical problems of high deformation rate, difficult forming of flange ends, and many defects such as peeling caused by the narrow temperature range, easy sticking to the mold and poor fluidity of aluminum forging, which greatly reduces the scrap rate and realizes a simplified production process.
  • the gate valve manufactured according to the above method is an integrated aluminum alloy gate valve with the valve body and flange integrally formed.
  • the aluminum alloy gate valve includes a valve body 10, which includes a valve tube 11, a reinforcing part 12, a valve tube 13, and a flange 20.
  • the valve tube 11 has a valve cavity 111 and a valve port 112.
  • the valve tube 13 is connected to the valve tube 11.
  • the reinforcing part 12 is disposed on the valve tube 11 and is positioned corresponding to the valve port 112.
  • the reinforcing part 12 extends towards the valve tube 13 and protrudes from the outer wall of the valve tube 11, and is connected to the valve tube 13.
  • the reinforcing part 12 and the portion of the valve tube 11 covered by the reinforcing part 12 are generally rectangular in shape.
  • the valve pipe 13 includes a first connecting pipe 131, a second connecting pipe 132, and a third connecting pipe 133.
  • the first connecting pipe 131 is coaxially arranged with the valve pipe 11.
  • the second connecting pipe 132 and the third connecting pipe 133 are both perpendicular to the valve pipe, and the third connecting pipe 133 is coaxial with the second connecting pipe 132.
  • the second connecting pipe 132 is provided with a connector mounting position 132a. During installation, the connector nut is connected to the connector mounting position 132a.
  • the axis of the valve port is coaxial with the valve pipe 11, and the axis of the second connecting pipe 132 intersects with the axis of the valve port 112.
  • the reinforcing part 12 includes a first body 121 and a second body 122.
  • the first body 121 extends from the valve body 11 towards and connects to the first connecting pipe 131.
  • the second body 122 extends from the valve body 11 towards and connects to the second connecting pipe 132.
  • the first connecting pipe 131 is coaxially arranged with the valve body 11, and the second connecting pipe 132 is perpendicular to the valve body.
  • the cross-section of the first part 121 is rectangular.
  • the cross-section of the first part 121 can also be set to other shapes, which can be selected according to actual needs.
  • cross-section of the second part 122 is rectangular.
  • the cross-section of the first part 121 can also be set to other shapes, which can be selected according to actual needs.
  • the second connecting pipe 132 is provided with a connector mounting position 132a.
  • the connector nut is connected to the connector mounting position 132a.
  • the axis of the valve port 112 is coaxial with the valve body 11, and the axis of the second connecting pipe 132 intersects with the axis of the valve port 112.
  • the valve pipe 11 has a cap mounting position 11a at its top, and the cap is connected to the cap mounting position 11a during installation.
  • the top of the reinforcing part 12 has an extension 124, which extends from the reinforcing part 12 toward the cap mounting position 11a.
  • the extension 124 has a rectangular cross-section.
  • the cross-section of the first part 121 can also be set to other shapes, which can be selected according to actual needs.
  • Flange 20 is located below the lower end face of reinforcing part 12.
  • Flange 20 and valve body 10 are an integral structure.
  • Flange 20 extends along the X-axis in the length direction.
  • the longitudinal section of the aluminum alloy gate valve blank obtained in step (6) is cross-shaped, including a flange forming part 51 and a valve body forming part 40.
  • the flange forming part 51 is the horizontal part of the cross shape
  • the valve body forming part 40 is the vertical part of the cross shape.
  • the relative position of the center point of the flange forming part 51 and the valve body forming part in the height direction depends on the structure of the manufactured aluminum alloy gate valve.
  • the flange forming part 51 is located in the lower middle part of the valve body forming part 40.
  • the valve body forming part 40 includes a first valve body forming part 52 located below the flange forming part 51 and a second valve body forming part 53 located above the flange forming part 51.
  • the first valve body forming part 52 is used for forming the first connecting pipe 131 opposite to the valve pipe
  • the second valve body forming part 53 is used for forming the valve pipe 13, the second connecting pipe 132 and the third connecting pipe 133 located on both sides of the valve pipe 13, and the reinforcing part 12.
  • the first forming part 52 of the valve body is a cuboid.
  • the first forming part 52 of the valve body can also be other shapes, as long as it meets the forming size requirements of the first connecting pipe 131.
  • the outer periphery of the aluminum alloy gate valve blank of this shape is a regular plane or arc surface, which has good machining and positioning capabilities, facilitates the design of machining fixtures, can achieve extremely high machining accuracy, and ensure good sealing performance.
  • the second forming part 53 of the valve body includes a vertical main body 531.
  • two arc-shaped protrusions 532 and two rectangular protrusions 533 are mirror-symmetrically arranged in the height direction Z.
  • the two arc-shaped protrusions 532 are spaced apart from the flange plate, and the center of the arc on the two arc-shaped protrusions 532 is the center point of the valve body forming part in the height direction, and is located on the central axis of the second pipe 132 and the third pipe 133.
  • the diameter of the arc-shaped protrusion 532 is not less than the diameter of the external thread on the second pipe 132.
  • the arc-shaped protrusions 532 are machined to form a second extension 122.
  • the two rectangular protrusions 533 are located on the upper part of the vertical main body 531.
  • the upper end face of the rectangular protrusions 533 is in the same plane as the upper end face of the vertical main body 531.
  • the rectangular protrusions 533 are used for cap thread forming.
  • the aluminum alloy gate valve is designed with an irregular shape.
  • the position of the arc-shaped protrusion 532 is set to facilitate the determination of the machining positions of the second pipe 132 and the third pipe 133 during machining.
  • the rectangular protrusion 533 is set to facilitate the determination of the machining height of the cap mounting position 11a during machining, thereby improving the machining accuracy of the gate valve.
  • the vertical distance between the center point of the valve body forming part 40 in the height direction Z and the bottom end face of the flange forming part 51 is defined as the center height A; the vertical distance between the center point of the valve body forming part 40 in the height direction and its upper end face is defined as the total height B; the width of the vertical main body part 531 is defined as the neck length D; the sum of the widths of the vertical main body part 531 and the two rectangular protrusions 533 is defined as the threaded mating part width C; the radius of the arc-shaped protrusion 532 is defined as the outer diameter of the connector thread E; the vertical distance between the lower end face of the flange forming part 51 and the lower end face of the valve body forming part 40 is defined as the boss height F; and the thickness of the flange forming part 51 is G.
  • the dimensions of the center height A must ensure that the connector nut can be assembled; the overall height B must meet the requirements for valve core installation; the width C of the threaded mating part must meet the dimensional requirements for cap thread machining; the neck length D must meet the dimensional requirements for cap torque strength; the outer diameter E of the connector thread must meet the dimensional requirements for connector thread machining; the boss height F must meet the dimensional requirements for ensuring the strength of the valve body after welding; and the flange thickness G must meet the dimensional requirements for ensuring flange strength. All the above dimensions are determined based on the nominal bore size, and depending on the range of the nominal bore size, each of the above dimensions must meet the size range shown in Table 1.
  • the above-mentioned structural dimensions are designed to minimize subsequent machining while ensuring the machining accuracy and structural strength of the gate valve.
  • the gate valve manufactured according to the above method is a combined aluminum alloy gate valve with a separate valve body and flange.
  • the aluminum alloy gate valve includes a valve body 10, which includes a valve body 11, a reinforcing part 12, and a valve pipe 13.
  • the valve body 11 has a valve cavity 111 and a valve port 112.
  • the valve pipe 13 is connected to the valve body 11.
  • the reinforcing part 12 is disposed on the valve body 11 and is positioned corresponding to the valve port 112.
  • the reinforcing part 12 extends towards the valve pipe 13 and protrudes from the outer wall of the valve body 11, and is connected to the valve pipe 13.
  • valve tube 13 needs to be inserted into the connector nut, and a wrench is used to apply torque to the connector nut to tighten it, so that the valve tube 13 and the connector nut have a hard seal.
  • a cap needs to be connected to the top of the valve body, and a wrench is used to apply torque to the cap and tighten it.
  • the connector nut applies a force to the valve tube 13, which in turn applies a force in the X-axis direction to the reinforcing part 12 and the valve body 11.
  • the cap applies a force in the Y-axis direction to the valve body.
  • the valve body 11 can withstand forces in both directions, thus preventing plastic deformation and avoiding situations where the valve core and valve port 112 do not seal properly or the valve body 11 cracks. This effectively improves the sealing effect and service life of the aluminum alloy gate valve.
  • the reinforcing part 12 covers the outer side of the valve body 11, and the reinforcing part 12 and the valve body 11 it covers are in a rectangular shape as a whole.
  • the aforementioned rectangular shape refers to the fact that the reinforcing part 12 and the portion of the valve body covered by the reinforcing part 12 together present a rectangular shape.
  • the corners and edges of the rectangular shape can also be chamfered to a certain extent, without affecting the expression of a rectangular shape. Since the valve body 10 of the aluminum alloy gate valve is obtained by extruding profiles and then machining, the rectangular shape is easier to process, effectively reducing processing steps, facilitating intensive production, and saving costs.
  • the diameter of the valve body 11 is set to ⁇ 1
  • the diameter of the valve pipe 13 is set to ⁇ 2
  • the width of the reinforcing part 12 is set to D1
  • D1 satisfies the relationship with ⁇ 1 and ⁇ 2 : D1 > ⁇ 1 , D1 > ⁇ 2 . That is, the reinforcing part 12 can completely cover the width of the valve body 11 and the width of the connection between the valve pipe 13 and the valve body 11, ensuring the strength of the connection between the valve pipe 13 and the valve body 11 and reducing the possibility of deformation at this position.
  • the height of the reinforcing part 12 is set to H, and H and ⁇ 2 satisfy the relationship: H > ⁇ 2 . That is, the height and width of the reinforcing part 12 will completely cover the valve pipe 13, ensuring the strength of the connection between the valve pipe 13 and the valve body 11 and reducing the possibility of deformation at this position.
  • the valve body 11, the reinforcing part 12, and the valve pipe 13 are an integral structure, meaning they are machined in one go through machining methods such as turning and cutting.
  • the valve cavity 111 extends through the valve body 11 in the height direction Z.
  • the valve pipe 13 is a hollow structure and communicates with the valve cavity 111.
  • the valve port 112 is located near the connection between the valve pipe 13 and the valve cavity 111, and the valve port 112 is the aforementioned first-line seal.
  • the valve pipe 13 includes a first connecting pipe 131 and a second connecting pipe 132.
  • the reinforcing part 12 includes a first body 121 and a second body 122.
  • the first body 121 extends from the valve body 11 towards the first connecting pipe 131 and is connected to the first connecting pipe 131.
  • the second body 122 extends from the valve body 11 towards the second connecting pipe 132 and is connected to the second connecting pipe 132.
  • the first connecting pipe 131 is coaxially arranged with the valve body 11, and the second connecting pipe 132 is perpendicular to the valve pipe.
  • the cross-section of the first part 121 is rectangular.
  • the cross-section of the first part 121 can also be set to other shapes, which can be selected according to actual needs.
  • cross-section of the second part 122 is rectangular.
  • the cross-section of the first part 121 can also be set to other shapes, which can be selected according to actual needs.
  • the second connecting pipe 132 is provided with a connector mounting position 132a.
  • the connector nut is connected to the connector mounting position 132a.
  • the axis of the valve port 112 is coaxial with the valve body 11, and the axis of the second connecting pipe 132 intersects with the axis of the valve port 112.
  • the valve pipe 13 further includes a third connecting pipe 133, which is coaxially arranged with the second connecting pipe 132, and the first connecting pipe 131 is coaxially arranged with the valve pipe 13.
  • the reinforcing part 12 further includes a third body 123, which extends from the valve body 11 to the third connecting pipe 133 and is connected to the third connecting pipe 133.
  • the cross-section of the third body 123 is rectangular.
  • the cross-section of the first body 121 can also be set to other shapes, which can be selected according to actual needs.
  • valve body 11 has a cap mounting position 11a at its top, and the cap is connected to the cap mounting position 11a during installation.
  • the reinforcing part 12 has an extension 124 that extends from the reinforcing part 12 toward the cap mounting position 11a, and the extension 124 has a rectangular cross-section.
  • the cross-section of the first part 121 can also be set to other shapes, which can be selected according to actual needs.
  • the flange 20 is provided with flange mounting holes 23 that cooperate with the mounting part 14.
  • the torque applied by the wrench to the cap will subject the flange 20 plate of the valve body 10 to shear force.
  • the presence of the flange mounting hole 23 allows the flange 20 to withstand a larger torsional force, making it less prone to cracking.
  • the mounting part 14 can be located on the valve body 11 or on the reinforcing part 12; the specific location can be selected according to actual usage needs. In this embodiment, it is located on the reinforcing part 12, ensuring that the force during flange 20 installation will not cause torsional deformation of the valve body 11, further improving the sealing effect and service life of the valve body 10.
  • the flange 20 is fitted onto the mounting part 14.
  • the mounting part 14 and the reinforcing part 12 are an integral structure, obtained by machining the reinforcing part 12.
  • the flange 20 and the mounting part 14 can be connected by arc welding, gas welding, laser welding, etc. This embodiment uses laser welding, resulting in a strong weld.
  • the welding position and welding length are selected according to actual conditions and are not limited here.
  • the flange 20 is inserted into the mounting portion 14.
  • the mounting portion 14 is a ring groove provided on the reinforcing portion 12.
  • the flange 20 includes a first body 21 and a second body 22.
  • the flange mounting hole 23 includes a first half-hole 231 and a second half-hole 232.
  • the first half-hole 231 is located on the first body 21, and the second half-hole 232 is located on the second body 22.
  • the first body 21 and the second body 22 are inserted into the mounting part 14 and then spliced to form a complete flange 20.
  • the first body 21 and the second body 22 can be fixed together by methods such as arc welding, gas welding, and laser welding.
  • the flange 20 also plays the role of increasing the thickness of the valve body 11, further improving the strength of the valve body 11 and ensuring that the valve body 11 can withstand a large degree of joint torque.
  • transition arcs are provided at the four corners of the flange mounting hole, and the arc angle is greater than 90°.
  • the flange has a symmetrical double-hole structure.
  • the flange can also adopt various mounting hole forms such as single-sided single-hole and single-sided double-hole, which can be selected according to actual needs.
  • the length of the flange mounting hole 23 is set to L1
  • the length of the mounting part 14 is set to L2.
  • L1 and L2 satisfy the relationship: 0.05mm ⁇ L1 - L2 ⁇ 0.4mm.
  • the values of L1 - L2 can be 0.05mm, 0.1mm, 0.15mm, 0.2mm, 0.35mm, 0.4mm, etc.
  • the length of the flange mounting hole 23 is set to L1
  • the length of the mounting part 14 is set to L2 .
  • B and b satisfy the relationship: 0.1 ⁇ L1 - L2 ⁇ 0.3 mm. Consequently, there is a certain gap in the width direction between the flange mounting hole 23 and the mounting part 14, ensuring that the flange 20 can be easily installed onto the mounting part 14, while the gap is not too large to ensure sufficient strength of the flange 20 after welding.
  • the values of L1 - L2 can be 0.1 mm, 0.15 mm, 0.2 mm, 0.25 mm, 0.3 mm, etc. Of course, the values of L1 - L2 can also be selected according to the actual situation, which will not be elaborated here.
  • the width of the flange mounting hole 23 is set to L3
  • the width of the mounting part 14 is set to L4.
  • L3 and L4 satisfy the relationship: 0.05mm ⁇ L3 - L4 ⁇ 0.4mm.
  • the values of L3 - L4 can be 0.05mm, 0.1mm, 0.15mm, 0.2mm, 0.35mm, 0.4mm, etc.
  • the width of the flange mounting hole 23 is set to L3
  • the width of the mounting part 14 is set to L4.
  • L3 and L4 satisfy the relationship: 0.1 ⁇ L3 - L4 ⁇ 0.3 mm. Consequently, there is a certain gap between the flange mounting hole 23 and the mounting part 14 in the length direction, ensuring that the flange 20 can be easily installed onto the mounting part 14, while the gap is not too large to ensure sufficient strength of the flange 20 after welding.
  • the values of L3 - L4 can be 0.1 mm, 0.15 mm, 0.2 mm, 0.25 mm, 0.3 mm, etc. Of course, the values of L3 - L4 can also be selected according to the actual situation, which will not be elaborated here.
  • the thickness of flange 20 is set to D3 , where D3 ⁇ 5mm.
  • the value of D3 can be 5mm, 10mm, 15mm, 20mm, etc.
  • the value of D3 can also be selected according to the actual situation, which will not be detailed here.
  • the shape of the flange mounting hole 23 can be set to, but is not limited to, ellipse, rectangle, or square.
  • the flange mounting hole 23 is set to a rectangular shape, and in some embodiments it is a rectangle.
  • the inner angle 20a of the flange mounting hole 23 is set as a chamfered structure.
  • a chamfered structure refers to the inner angle 20a being treated as a chamfer; the chamfer angle can be selected according to actual needs and is not limited here. Since profile extrusion cannot form right angles, the valve body 11, reinforcing part 12, and mounting part 14 will all have a certain degree of roundness. Therefore, the inner angle 20a of the flange mounting hole 23 is set as a chamfer to ensure that the flange 20 can be smoothly assembled with the valve body 10.
  • the upper end 14a of the mounting portion 14 is also chamfered to facilitate the installation of the flange 20.
  • the angle of the chamfer can be selected according to actual needs and is not limited here.
  • the longitudinal section of the aluminum alloy gate valve blank obtained in step (6) is cross-shaped, including a valve body forming part 40.
  • the valve body forming part 40 includes a reinforcing part forming part 41, a valve body forming part 42 and a first connecting pipe forming part 43 located at the upper and lower ends of the reinforcing part forming part 41, and a second connecting pipe forming part 44 and a third connecting pipe forming part 45 located on the left and right sides of the reinforcing part forming part 41.
  • the aluminum alloy gate valve blank only needs to be extruded into a long cross structure, then cut according to the width of the valve body, and then machined into a valve seat structure. A flange plate is then added to the valve seat structure to achieve the desired gate valve effect.
  • this application only maintains the cross-shaped structure in the front view, and the width of the blank is reduced to the actual width of the valve body during cutting, thus significantly saving material usage.
  • a first body 121 is provided on the lower part of the reinforcing part forming part 41, and a mounting part 14 is provided on the lower end surface of the first body 121.
  • the upper end of the mounting part 14 is chamfered at the connection with the first body 121. This design further reduces the amount of machining required and improves production efficiency.
  • the reinforcing part forming part 41 is provided with a third body forming part 46 on the upper part of the valve body forming part 42 near the third connecting pipe 133.
  • the upper end surface of the third body forming part 46 is higher than the upper end surface of the third connecting pipe forming part 45. It can be understood that during irregular shape pressure forming, the upper end of the third body forming part 46 and the upper end surface of the third connecting pipe forming part 45 form a height difference, which facilitates the accurate determination of the processing position of the third connecting pipe 133 during the machining stage, thereby improving the processing accuracy and efficiency of the gate valve.
  • the upper end face of the reinforcing part 41 on the side of the valve body forming part 42 near the third connecting pipe 133 is connected to the third connecting pipe forming part 45 by a downwardly sloping slope.
  • other transition forms can be used between the reinforcing part 41 and the third connecting pipe forming part 45, depending on actual needs.
  • the upper end face of the reinforcing part 41 located on the side of the valve body forming part 42 near the second connecting pipe 132, is in the same plane as the second connecting pipe forming part 44. It is understood that since the second body 122, the third body 123, and the extension 124 are all mirror-symmetrically arranged on both sides of the valve body forming part 42 relative to its central axis, if a precision positioning dividing line is provided on one side, the other side can be omitted. Of course, in other embodiments, a height difference can also be provided between the upper end face of the reinforcing part 41 and the upper end face of the second connecting pipe forming part 44, using an inclined surface or other forms of transition connection, depending on actual needs.
  • the first pipe forming part 43 is located below the mounting part 14.
  • the length of the first pipe forming part 43 is greater than the length of the mounting part 14.
  • the upper part of the side of the first pipe forming part 43 in the width direction is connected to the lower end of the mounting part 14 through an inclined surface that slopes from the outside to the inside. It can be understood that the length difference between the mounting part 14 and the first pipe forming part 43 makes the dividing line between the mounting part 14 and the first pipe forming part 43 more prominent, which facilitates the cutting and positioning of the first pipe forming part 43 during machining. On the other hand, it ensures that the welding position has sufficient wall thickness after machining.
  • an extension forming part 47 is provided on the upper part of the reinforcing forming part 41.
  • the extension forming part 47 is located directly below the valve body forming part 42, and the two are coaxially arranged.
  • the length of the extension forming part 47 is less than the width of the valve body forming part 42.
  • the lower part of the valve body forming part 42 in the width direction is connected to the upper end of the extension forming part 47 through an inwardly inclined surface.
  • the valve body forming part 42 is used for forming the valve pipe 13 and the cap mounting position 11a.
  • the length difference between the extension forming part 47 and the valve body forming part 42 makes the dividing line between the two prominent, which facilitates quick and accurate positioning during machining and improves production efficiency.
  • it meets the dimensional requirements for cap thread machining and cap torque strength.
  • the vertical distance between the center point of the valve body forming part 40 in the height direction and the bottom end face of the third connecting pipe forming part 45 is defined as the center height *a*
  • the vertical distance between the center point of the valve body forming part 40 in the height direction and its upper end face is defined as the total height *b*
  • the length of the extension forming part 47 is defined as the neck length *d*
  • the length of the valve body forming part 40 is defined as the threaded mating part width *c*
  • the width of the third connecting pipe forming part 45 is defined as *e*
  • the height of the first connecting pipe forming part 43 is defined as the boss height *f*.
  • the center height *a* must ensure that the connector nut can be assembled, the total height *b* must meet the requirements for valve core installation, the threaded mating part width *c* must meet the dimensional requirements for cap thread processing, the neck length *d* must meet the dimensional requirements for cap torque strength, the width *e* of the third connecting pipe forming part 45 must meet the dimensional requirements for connector thread processing, and the boss height *f* must meet the dimensional requirements for ensuring the strength of the valve body after welding.
  • the dimensions mentioned above are determined based on the nominal diameter. Depending on the range of the nominal diameter, the dimensions mentioned above must meet the size range shown in Table 2.
  • the above-mentioned structural dimensions are designed to minimize subsequent machining while ensuring the machining accuracy and structural strength of the gate valve.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Housings (AREA)

Abstract

一种铝合金截止阀制造方法，该方法包括以下步骤：(1)铝合金选料熔炼；(2)铸造：将铝合金熔体铸造为铝合金棒；(3)铝合金棒均匀化处理：将步骤(2)中冷却得到的铝合金棒放入均质炉中进行均匀化处理；(4)异形挤压成型：将步骤(3)中均匀化处理后的铝合金棒切割为短棒，将短棒异形挤压为纵截面呈十字型的型材；(5)热处理强化；(6)切割下料：将热处理强化后的长段阀座铝合金型材毛坯切割成多个铝合金截止阀毛坯；(7)车床加工成铝合金截止阀。

Description

一种铝合金截止阀制造方法及铝合金截止阀
相关申请
本申请要求2024年9月30日申请的，申请号为202411389529.7，发明名称为“一种铝合金截止阀制造方法及铝合金截止阀”以及2024年7月2日申请的，申请号为202421545152.5，发明名称为“铝合金截止阀”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请属于截止阀技术领域，具体涉及一种铝合金截止阀制造方法及铝合金截止阀。
背景技术
目前相关技术中的截止阀均为黄铜材质，少数为铝合金截止阀，而且现有铝截止阀阀座生产工艺均参照铜截止阀生产工艺：铝合金熔炼-铸造铝棒-铸棒均匀化-挤压圆棒-下料-滚石墨-加热-锻压-切边-抛丸-热处理强化-机加工成型，相关技术中铜材质截止阀的制造多依赖于锻造工艺，该工艺通过锻压机对铜材施加压力，使其发生塑性变形，从而得到所需的形状和尺寸，这一复杂过程通常包括毛坯的单独切割、冲压预处理以及后续的机械加工。在将该工艺应用于铝合金截止阀生产时，由于铝材质有锻造温度范围窄、容易粘模和流动性差等特点，会存在铝合金阀体变形率大、法兰末端难成型、起皮等缺陷多、锻造过程不良率高等问题，而且该工艺使用的曲柄压力机配合哈夫模锻造铝截止阀难度大。
发明内容
根据本申请的各种实施例，提供一种铝合金截止阀制造方法及铝合金截止阀。
一种铝合金截止阀制造方法，具体包括以下步骤：
(1)铝合金选料熔炼；
(2)铸造：将铝合金熔体铸造为铝合金棒；
(3)铝合金棒均匀化处理：将步骤(2)中冷却得到的铝合金棒放入均质炉中进行均匀化处理；
(4)异形挤压成型：将(3)中均匀化处理后的铝合金棒切割为短棒，将短棒加热至450-550℃，使用2000T及以上正挤压机挤压成型材，挤压模具温度控制在400-500℃；
(5)热处理强化：将挤出的型材在一定时间内经水冷至室温后，经在一定时间后，在一定时间内升温至一温度后保温数小时，再在一定时间内升温至一温度后保温数小时，最后出炉后风冷，得到纵截面呈十字型的长段阀座铝合金型材毛坯，所述长段阀座铝合金型材毛坯在垂向上的高度不小于截止阀在垂向上的最大高度，长段阀座铝合金型材毛坯的宽度不小于截止阀的宽度，所述高度为长短阀座铝合金型材毛坯纵截面的高度，所述的宽度为长段阀座铝合金型材毛坯纵截面的宽度；
(6)切割下料：将热处理强化后的长段阀座铝合金型材毛坯按照截止阀的宽度数值切割成多个铝合金截止阀毛坯；
(7)车床加工成铝合金截止阀。
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其它特征、目的和优点将从说明书、附图以及权利要求书变得明显。
附图说明
为了更好地描述和说明这里公开的那些发明的实施例和/或示例，可以参考一幅或多幅附图。用于描述附图的附加细节或示例不应当被认为是对所公开的发明、目前描述的实施例和/或示例以及目前理解的这些发明的最佳模式中的任何一者的范围的限制。
图1为本申请一实施例的铝合金截止阀的铝合金截止阀型材毛坯结构示意图。
图2为本申请一实施例的铝合金截止阀的铝合金截止阀型材毛坯的结构尺寸标示图。
图3为本申请一实施例的铝合金截止阀的结构示意图。
图4为本申请一实施例的铝合金截止阀的俯视图。
图5为本申请一实施例的铝合金截止阀的铝合金截止阀型材毛坯结构示意图。
图6为本申请一实施例的铝合金截止阀的铝合金截止阀型材毛坯的结构尺寸标示图。
图7为本申请一实施例的铝合金截止阀的结构示意图。
图8为本申请提供的铝合金截止阀侧视示意图。
图9为图8中沿A-A线的剖视图本申请。
图10为图8中沿B-B线的剖视图。
图11为本申请一实施例的铝合金截止阀的俯视图。
图12为本申请一实施例的铝合金截止阀中阀体的俯视图。
图13为本申请一实施例的铝合金截止阀的法兰结构示意图。
图14为本申请一实施例的铝合金截止阀的法兰的俯视图。
图15为本申请一实施例的铝合金截止阀的法兰的纵截面图。
图16为本申请提供的铝合金截止阀的另一种实施例的结构示意图。
图17为图16中的法兰的结构示意图。
其中，51-法兰成型部，52-第一成型部，53-阀体第二成型部，531-竖向主体部，532-圆弧状外凸部，533-矩形外凸部，40-阀体成型部，41-加强部成型部，42-阀身成型部，43-第一接管成型部，44-第二接管成型部，45-第三接管成型部，46-第三部体成型部，10-阀体，11-阀身，111-阀腔，112-阀口，11a-盖帽安装位，12-加强部，121-第一部体；122-第二部体，123-第三部体，124-延伸部，13-阀管，131-第一接管，132-第二接管，132a-接头安装位，133-第三接管，14-安装部；20-法兰；23-法兰安装孔；20a-内角；14a-上端；21-第一本体；22-第二本体；231-第一半孔；232-第二半孔。
具体实施方式
为使本申请的上述目的、特征和优点能够更加明显易懂，下面结合附图对本申请的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本申请。但是本申请能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本申请内涵的情况下做类似改进，因此本申请不受下面公开的具体实施例的限制。
需要说明的是，当组件被称为“固定于”或“设置于”另一个组件，它可以直接在另一个组件上或者也可以存在居中的组件。当一个组件被认为是“连接”另一个组件，它可以是直接连接到另一个组件或者可能同时存在居中组件。本申请的说明书所使用的术语“垂直的”、“水平的”、“上”、“下”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征“上”、“下”可以是第一特征直接和第二特征接触，或第一特征和第二特征间接地通过中间媒介接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅表示第一特征水平高度小于第二特征。
除非另有定义，本申请的说明书所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。在本申请的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在于限制本申请。本申请的说明书所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
本申请提供了一种铝合金截止阀制造方法，以及采用该方法制造的铝合金截止阀。
一种铝合金截止阀制造方法，具体包括以下步骤：
(1)铝合金选料熔炼；
(2)铸造：将铝合金熔体铸造为铝合金棒；
(3)铝合金棒均匀化处理：将步骤(2)中冷却得到的铝合金棒放入均质炉中进行均匀化处理；6061铝合金由室温在3h内升至520℃-540℃保温12小时，后随炉冷却至300℃，再空冷至室温；
(4)异形挤压成型：将(3)中均匀化处理后的铝合金棒切割为短棒，将短棒加热至450-550℃，使用2000T及以上正挤压机挤压成型材，挤压模具温度控制在400-500℃；针对不同的铝合金材料，该步骤采用的挤压成型参数相同；
(5)热处理强化：将挤出的型材在20秒内经水冷至室温后，在12小时内经30分钟内升温至180℃后保温2小时，再经10分钟升温至220℃后保温2小时，出炉后风冷，得到纵截面呈十字型的长段阀座铝合金型材毛坯，长段阀座铝合金型材毛坯在高度方向Z上的高度h不小于截止阀在高度方向Z上的最大高度，长段阀座铝合金型材毛坯的宽度g不小于截止阀的宽度，高度h为长段阀座铝合金型材毛坯纵截面的高度，所述的宽度g为长段阀座铝合金型材毛坯纵截面的宽度；
(6)切割下料：将热处理强化后的长段阀座铝合金型材毛坯按照截止阀的宽度数值切割成多个铝合金截止阀毛坯，当截止阀为阀体和法兰一体截止阀时，宽度为沿截止阀气门嘴口中心轴线方向的宽度m，当截止阀为阀体和法兰为分体式结构时，宽度为同时垂直于气门嘴口中心轴线和阀芯口中心轴线方向的宽度n，即安装部的宽度L4；
(7)车床加工成铝合金截止阀。
在步骤(1)中，选择的铝合金为可热处理的铝合金，可为2系、6系、7系铝合金，熔炼时的温度和时间参数根据所选择的铝合金材料型号确定。
在步骤(2)中，将铝合金熔炼体铸造成铝棒所需的熔炼体温度根据所选择的铝合金型号确定。
为保证型材的组织和性能，铸棒需进行均匀化退火，在步骤(3)中，同样根据选择的铝合金型号不同采用不同的均匀化工艺条件，例如当选择6061铝合金时，先将铝合金棒由室温在3h内升至520℃-540℃保温12小时，然后随炉冷却至300℃，再空冷至室温。
可以理解的是，本申请采用加压成型工艺，直接省略了相关方法中的锻压这一步骤，避免了因铝锻造温度范围窄、容易粘模和流动性差等特点造成的锻造铝截止阀变形率大、法兰末端难成型、起皮等缺陷多、锻造过程不良率高的技术问题，大大降低报废率，同时实现了简化的生产流程。
采用本申请的制造方法，铝合金原料厂家可以提前统一挤压成所需形状的截止阀型材毛坯，然后统一将挤压成型的型材毛坯进行热处理强化，对于截止阀生产厂家来说，仅需完成下料以及机加工工序。一方面，相较于之前毛坯进行热处理可节省热处理空间，且转运更方便，另一方面，相比相关的工艺流程可节省5道工序，减少设备、场地、人力投入，降低生产成本，提高生产效率。
在一实施例中，参考图1-6，根据上述方法制造的截止阀为阀体与法兰一体设置的一体式铝合金截止阀，具体的，所述铝合金截止阀包括阀体10，阀体10包括阀管11、加强部12、阀管13及法兰20。其中，阀管11内开设阀腔111和阀口112，阀管13连接于阀管11上，加强部12设于阀管11上，且对应于阀口112的位置设置。加强部12向阀管13方向延伸并突出于阀管11外侧壁，且加强部12与阀管13相连，加强部12与加强部12包覆部分的阀管11整体呈矩体状。
参考图3，阀管13包括第一接管131、第二接管132和第三接管133，第一接管131与阀管11同轴设置，第二接管132和第三接管133均垂直于阀管设置，且第三接管133与第二接管132同轴设置。第二接管132上设有接头安装位132a，安装时，接头螺母与该接头安装位132a相连，阀口的轴线与阀管11同轴设置，第二接管132的轴线与阀口112的轴线相交设置。
加强部12包括第一部体121和第二部体122。其中，第一部体121由阀身11向第一接管131延伸，且与第一接管131相连接。第二部体122由阀身11向第二接管132延伸且与第二接管132相连接。在一些实施例中，第一接管131与阀身11同轴设置，第二接管132垂直于阀身设置。
进一步的，第一部体121的截面呈矩形状。当然，与其他实施例中，第一部体121的截面也可设置为其他形状，具体可根据实际需要选择。
进一步的，第二部体122的截面呈矩形状。当然，与其他实施例中，第一部体121的截面也可设置为其他形状，具体可根据实际需要选择。
具体的，第二接管132上设有接头安装位132a，安装时，接头螺母与该接头安装位132a相连。阀口112的轴线与阀身11同轴设置，第二接管132的轴线与阀口112的轴线相交设置。
阀管11顶部设有盖帽安装位11a，安装时，盖帽与该盖帽安装位11a相连。加强部12的顶部设有延伸部124，该延伸部124由所述加强部12向盖帽安装位11a方向延伸。延伸部124的截面呈矩形状。当然，在其他实施例中，第一部体121的截面也可设置为其他形状，具体可根据实际需要选择。
法兰20设置在加强部12的下端面下方，法兰20与阀体10为一体结构，法兰20长度方向沿X轴方向延伸。
在本实施例中，参考图1和图5采用本实施例方法制造该铝合金截止阀时，在步骤(6)中得到的铝合金截止阀毛坯的纵截面呈十字型，包括法兰成型部51和阀体成型部40，法兰成型部51为十字型中的横向部，阀体成型部40为十字型中的竖向部，法兰成型部51与阀体成型部高度方向中心点的相对位于根据所制造的铝合金截止阀结构而定，在本实施例中法兰成型部51位于阀体成型部40的中下部。
具体的，阀体成型部40包括位于法兰成型部51下方的阀体第一成型部52和位于法兰成型部51上方的阀体第二成型部53，阀体第一成型部52用于与阀管相对的第一接管131的成型，阀体第二成型部53用于阀管13、位于阀管13两侧第二接管132和第三接管133以及加强部12的成型。
在本实施例中，阀体第一成型部52的形状为长方体，当然在其他实施例中，阀体第一成型部52也可以为其他形状，只要其满足第一接管131的成型尺寸要求即可。
可以理解的是，该种形状结构的铝合金截止阀毛坯的外周均为规则平面或圆弧面，具有良好的加工定位能力，便于机加工夹具设计，可以达到极高的加工精度，保证良好的密封性能。
在本实施例中，所述阀体第二成型部53包括竖向主体部531，在竖向主体部531宽度方向的两侧，沿高度方向Z镜像对称设有两个圆弧状外凸部532和两个矩形外凸部533，两个圆弧状外凸部532与法兰板间隔设置，且两个圆弧状外凸部532上圆弧所在圆的圆心为阀体成型部在高度方向的中心点，且位于第二接管132和第三接管133的中心轴线上，圆心圆弧状外凸部532的直径不小于第二接管132上外螺纹直径，圆弧状外凸部532经机加工后形成第二延伸部122；两个所述矩形外凸部533位于竖向主体部531的上部，矩形外凸部533上端面与竖向主体部531的上端面位于同一平面内，矩形外凸部533处用于盖帽螺纹成型加工。
可以理解的是，将铝合金截止阀的形状设置为异形结构形状，圆弧状外凸部532的位置设置便于机加工时确定第二接管132和第三接管133的加工位置，矩形外凸部533的设置便于机加工时确定盖帽安装位11a的加工高度，提高个截止阀机加工的精度。
具体的，参考图2将阀体成型部40在高度方向Z上的中心点与法兰成型部51的底端面之间的垂直距离定义为中心高A，将阀体成型部40在高度方向上的中心点与其上端面之间的垂直距离定义为总高B，将竖向主体部531的宽度定义为颈长D，竖向主体部531和两个矩形外凸部533的宽度之和定义为螺纹配合部宽度C，将圆弧状外凸部532的半径定义为接头螺纹外径E，将法兰成型部51的下端面与阀体成型部40的下端面之间的垂直距离定义为凸台高度F，法兰成型部51的厚度为G。
中心高A的大小须保证接头螺母可完成装配，总高B的大小须保证阀芯安装的需求，螺纹配合部宽度C的大小须满足盖帽螺纹加工所需的尺寸要求，颈长D的大小须满足盖帽力矩强度的所需的尺寸要求；接头螺纹外径E的大小须满足接头螺纹加工所需的尺寸要求，凸台高F的大小须满足保证焊后阀体强度所需满的尺寸要求；法兰厚G的大小须满足保证法兰强度所需的该尺寸要求。上述各个尺寸大小均根据名义通径的大小确定，根据名义通径大小范围的不同，上述各个尺寸大小须满足表一所示的大小范围。
表一
可以理解的是，上述结构尺寸的设置要求，在保证截止阀结构加工精度和结构强度的前提下，最大限度的减少后续的机加工量。
在另一实施例中，参考图7-17根据上述方法制造的截止阀为阀体与法兰分体设置的组合式铝合金截止阀，具体的，所述铝合金截止阀包括阀体10，阀体10包括阀身11、加强部12及阀管13。其中，阀身11内开设阀腔111和阀口112。阀管13连接于所述阀身11上。加强部12设于阀身11上，且对应于所述阀口112的位置设置。加强部12向阀管13方向延伸并突出于所述阀身11外侧壁，且加强部12与阀管13相连。
可以理解地，在铝合金截止阀安装过程中，阀管13需要插入到接头螺母中，并使用扳手向接头螺母施加力矩拧紧接头螺母，以使得阀管13和接头螺母硬密封配合。阀身顶部需要连接盖帽，并使用扳手向盖帽施加力矩拧紧盖帽。在接头螺母被拧动的过程中，接头螺母向阀管13施加作用力，从而阀管13将向加强部12和阀身11施加X轴方向的力。在盖帽被拧动的过程中，盖帽将向阀身施加Y轴方向的作用力。由于加强部12的设置增加了阀身11的截面积，使得阀身11能够承受住两个方向上的力，进而不会发生塑性变形，不会出现阀芯和阀口112密封不严或者阀身11开裂的情况，有效提升了铝合金截止阀的密封效果和使用寿命。
加强部12包覆阀身11外侧，并且加强部12与其包覆部分的阀身11整体呈矩体状。
可以理解地，上述提及的矩体状，指的是加强部12和加强部12包覆的那部分阀体一同呈现矩体状，矩体的边角、边缘等处也可以进行一定的倒角，并不影响矩形状的表达。由于铝合金截止阀的阀体10为型材挤压后再通过机加工得到，矩体状的形状更易加工得到，有效减少加工工序，利于集约化生产，节省成本。
在本实施例中，参考图9，阀身11的直径设置为Φ1，阀管13的直径设置为Φ2；加强部12的宽度设置为D1，D1和Φ1、Φ2满足关系：D1＞Φ1，D1＞Φ2。即加强部12在宽度上能够完全覆盖阀身11宽度和阀管13连接的宽度，保证阀管13和阀身11连接处的强度，降低该位置变形的可能性。
进一步地，加强部12的高度设置为H，H和Φ2满足关系：H＞Φ2。也即，加强部12的高度和宽度都将完全覆盖阀管13，保证阀管13和阀身11连接处的强度，降低该位置变形的可能性。
阀身11、加强部12及阀管13为一体结构，这里的一体结构指的是通过车削、切削等机加工方式一次性加工得到。阀腔111在阀身11的高度方向Z上贯穿阀身11，阀管13为中空结构且与阀腔111连通，阀口112设置在靠近阀管13和阀腔111连接处的位置上，阀口112位置即为上述提及的一线密封处。
具体的，阀管13包括第一接管131和第二接管132。加强部12包括第一部体121和第二部体122。其中，第一部体121由阀身11向第一接管131延伸，且与第一接管131相连接。第二部体122由阀身11向第二接管132延伸且与第二接管132相连接。在一些实施例中，第一接管131与阀身11同轴设置，第二接管132垂直于阀管设置。
进一步的，第一部体121的截面呈矩形状。当然，与其他实施例中，第一部体121的截面也可设置为其他形状，具体可根据实际需要选择。
进一步的，第二部体122的截面呈矩形状。当然，与其他实施例中，第一部体121的截面也可设置为其他形状，具体可根据实际需要选择。
具体的，第二接管132上设有接头安装位132a，安装时，接头螺母与该接头安装位132a相连。阀口112的轴线与阀身11同轴设置，第二接管132的轴线与阀口112的轴线相交设置。
在一实施例中，阀管13还包括第三接管133，第三接管133与第二接管132同轴设置，第一接管131与阀管13同轴设置。加强部12还包括第三部体123，第三部体123由阀身11向第三接管133延伸且与第三接管133相连接。进一步的，第三部体123的截面呈矩形状。当然，与其他实施例中，第一部体121的截面也可设置为其他形状，具体可根据实际需要选择。
进一步的，所述阀身11顶部设有盖帽安装位11a，安装时，盖帽与该盖帽安装位11a相连。加强部12上设有延伸部124，该延伸部124由所述加强部12向盖帽安装位11a方向延伸，延伸部124的截面呈矩形状。当然，在其他实施例中，第一部体121的截面也可设置为其他形状，具体可根据实际需要选择。
在本实施例中，参考图13，法兰20上设有与安装部14相配合的法兰安装孔23。
可以理解地，在阀身11顶部安装盖帽时，扳手向盖帽施加的力矩，会使阀体10法兰20板受到剪切力。而法兰安装孔23的存在，使得法兰20能够承受的较大的扭转力，不易产生开裂。安装部14可以设置在阀身11上，也可以设置在加强部12，具体设置位置可根据实际使用需要选择。本实施例中设置在加强部12上，保证法兰20安装时的力同样不会造成阀身11的扭转变形，进一步提升阀体10的密封效果和使用寿命。具体的，参见图7，法兰20套接于安装部14上。具体的，安装部14与加强部12为一体结构，通过对加强部12车削后得到。法兰20与安装部14可采用电弧焊、气焊、激光焊等方式固连，本实施例采用激光焊方式，焊接牢固。焊接位置与焊接长度根据实际情况进行选择，在此不做限定。
或者，参见图16，法兰20插接于安装部14上。具体的，安装部14为设置在加强部12上的一圈环槽。
参见图17，法兰20包括第一本体21和第二本体22，法兰安装孔23包括第一半孔231和第二半孔232，第一半孔231设于第一本体21上，第二半孔232设于第二本体22上。第一本体21和第二本体22插接在安装部14后拼接形成完整的法兰20。第一本体21和第二本体22可采用电弧焊、气焊、激光焊等方式固连。该种结构下，法兰20也充当了增大阀身11厚度的角色，进一步提升了阀身11的强度，保证阀身11能够承受较大程度的接头力矩。在本实施例中，为保证法兰可装入阀座，且满足配合间隙要求，法兰安装孔四角设置过渡圆弧，圆弧角度大于90°。在一些实施例中，法兰为对称双孔结构。当然，在其他实施例中，法兰也可采用有单边单孔，单边双孔等各种安装孔形式，具体可根据实际需要选择。
在一些实施例中，法兰安装孔23的长度设置为L1，安装部14的长度设置为L2，L1和L2满足关系：0.05mm≤L1-L2≤0.4mm。L1-L2的取值可采用0.05mm、0.1mm、0.15mm、0.2mm、0.35mm、0.4mm等值。
进一步的，法兰安装孔23的长度设置为L1，安装部14的长度设置为L2，B和b满足关系：0.1≤L1-L2≤0.3mm。进而法兰安装孔23和安装部14在宽度方向上存在一定的缝隙，保证法兰20能够轻松安装至安装部14上，同时缝隙又不会过大，保证焊接后法兰20有足够强度。L1-L2的取值可采用0.1mm、0.15mm、0.2mm、0.25mm、0.3mm等值。当然，L1-L2的取值也可以根据实际情况选择相应的值，在此不作细述。
在一些实施例中，法兰安装孔23的宽度设置为L3，安装部14的宽度设置为L4，L3和L4满足关系：0.05mm≤L3-L4≤0.4mm。L3-L4的取值可采用0.05mm、0.1mm、0.15mm、0.2mm、0.35mm、0.4mm等值。
进一步的，法兰安装孔23的宽度设置为L3，安装部14的宽度设置为L4，L3和L4满足关系：0.1≤L3-L4≤0.3mm。进而法兰安装孔23和安装部14在长度方向上存在一定的缝隙，保证法兰20能够轻松安装至安装部14上，同时缝隙又不会过大，保证焊接后法兰20有足够强度。L3-L4的取值可采用0.1mm、0.15mm、0.2mm、0.25mm、0.3mm等值。当然，L3-L4的取值也可以根据实际情况选择相应的值，在此不作细述。
在一些实施例中，法兰20的厚度设置为D3，D3≥5mm。D3的取值可采用5mm、10mm、15mm、20mm等值。当然，D3的取值也可以根据实际情况选择相应的值，在此不作细述。
具体的，法兰安装孔23的形状可以设置且不限于椭圆、长方形、正方型，在本实施例中，法兰安装孔23设置为矩形状，在一些实施例中为长方形。
在一些实施例中，法兰安装孔23的内角20a均设置为倒角结构。倒角结构指的是内角20a被处理为倒角，倒角的角度可根据实际需要进行选择，在此不作限定。由于型材挤压无法成型直角，进而阀身11、加强部12、安装部14上都将存在一定圆弧，故将法兰安装孔23的内角20a设置为倒角，保证法兰20可与阀体10的顺利装配。
在一些实施例中，安装部14的上端14a同样被加工成倒角，方便法兰20安装，倒角的角度可根据实际需要进行选择，在此不作限定。
在本实施例中，参考图5，采用本实施例方法制造该组合式铝合金截止阀时，在步骤(6)中得到的铝合金截止阀毛坯的纵截面呈十字型，包括阀体成型部40，所述阀体成型部40包括加强部成型部41、位于加强部成型部41上下两端的阀身成型部42和第一接管成型部43以及位于加强部成型部41左右两侧的第二接管成型部44和第三接管成型部45。
可以理解的是，当铝合金截止阀的阀身与法兰为分体式结构时，铝合金截止阀毛坯只需要挤压成型长条十字结构，然后按照阀体的宽度进行切割毛坯，再进行机加工成型的阀座结构，阀座结构上另外设置法兰板，即可实现相关截止阀的效果。与相关技术中的采用双十字结构(主视图与俯视图均呈十字形)截止阀毛坯结构相比，本申请仅在主视图上保持十字形结构，毛坯切割时宽度缩减至阀体实际宽度，从而显著节省了材料使用。
进一步的，在所述加强部成型部41的下部上设有第一部体121，在所述第一部体121下端面上设有安装部14。
可以理解的是，在铝合金截止阀毛坯上直接挤压成型第一部体121和安装部14，减少了机加工阶段的加工量，提高生产效率。
与铝合金截止阀成品相同，安装部14的上端与第一部体121连接处为倒角设计。如此设置进一步减少了机加工阶段的加工量，提高生产效率。
进一步的，所述加强部成型部41位于阀身成型部42靠近第三接管133的一侧的上部设有第三部体成型部46，第三部体成型部46的的上端面高于第三接管成型部45的上端面。可以理解的是，在异形加压成型时，第三部体成型部46的的上端与第三接管成型部45的上端面形成高度差，便于在机加工阶段准确确定第三接管133的加工位置，提高截止阀的加工精度和加工效率。
在本实施例中，为了便于机加工时第三部体123的形成以及延伸部124的精确定位加工，所述加强部成型部41位于阀身成型部42靠近第三接管133的一侧的上端面与第三接管成型部45之间通过一向下倾斜的斜面过渡连接。当然，在其他实施例中，加强部成型部41与第三接管成型部45之间可以采用其他过渡形式，具体可根据实际需要选择。
进一步的，所述加强部成型部41位于阀身成型部42靠近第二接管132一侧的上端面与第二接管成型部44位于同一平面内。可以理解的是，由于第二部体122和第三部体123以及延伸部124位于阀身成型部42的两侧均相对阀身成型部42的中心轴线镜像对称设置，在一侧设有精度定位分割线的情况下，另一侧可以省略。当然，在其他实施例中，加强部成型部41上端面与第二接管成型部44上端面之间也可以同时设置高度差采用倾斜面或其他形式过渡连接，具体可根据实际需要选择。
在本实施例中，所述第一接管成型部43的位于安装部14的下方，第一接管成型部43的长度大于安装部14的长度，第一接管成型部43宽度方向侧面上部通过自外向内倾斜的倾斜面与为安装部14的下端连接。可以理解的是，安装部14与第一接管成型部43长度差的设置使得安装部14与第一接管成型部43的分界线凸显，便于机加工时第一接管成型部43的切割加工定位，另一方面，保证机加工后焊接位置有足够壁厚。
在本实施例中，在加强部成型部41的上部上设有延伸部成型部47，所述延伸部成型部47位于阀身成型部42的正下方，两者同轴设置，延伸部成型部47的长度小于阀身成型部42的宽度，阀身成型部42宽度方向上的下部通过向内倾斜的倾斜面与延伸部成型部47的上端连接。阀身成型部42用于阀管13和盖帽安装位11a的成型。可以理解的是，一方面，延伸部成型部47与阀身成型部42的长度差使得两者的分界线凸显，便于接加工时的快速精准定位，提高生产效率，另一方面，满足盖帽螺纹加工尺寸要求和盖帽力矩强度尺寸要求。
参考图6，将所述阀体成型部40在高度方向上的中心点与第三接管成型部45的底端面之间的垂直距离定义为中心高a，将阀体成型部40在高度方向上的中心点与其上端面之间的垂直距离定义为总高b，将所述延伸部成型部47的长度定义为颈长d，阀身成型部40的长度定义为螺纹配合部宽度c，将所述第三接管成型部45的宽度为e，将所述第一接管成型部43的高度定义为凸台高度f；其中，中心高a的大小须保证接头螺母可完成装配，总高b的大小须保证阀芯安装的需求，螺纹配合部宽度c的大小须满足盖帽螺纹加工所需的尺寸要求，颈长d的大小须满足盖帽力矩强度的所需的尺寸要求；第三接管成型部45的宽度为e的大小须满足接头螺纹加工所需的尺寸要求，凸台高f的大小须满足保证焊后阀体强度所需满的尺寸要求。
上述各个尺寸大小均根据名义通径的大小确定，根据名义通径大小范围的不同，上述各个尺寸大小须满足表二所示的大小范围。
表二
可以理解的是，上述结构尺寸的设置要求，在保证截止阀结构加工精度和结构强度的前提下，最大限度的减少后续的机加工量。
显然，上述所描述的实施例仅仅是本申请一部分的实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本申请保护的范围。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (16)

  1. 一种铝合金截止阀制造方法，其特征在于，具体包括以下步骤：
    (1)铝合金选料熔炼；
    (2)铸造：将铝合金熔体铸造为铝合金棒；
    (3)铝合金棒均匀化处理：将步骤(2)中冷却得到的铝合金棒放入均质炉中进行均匀化处理；
    (4)异形挤压成型：将(3)中均匀化处理后的铝合金棒切割为短棒，将短棒加热至450-550℃，使用2000T及以上正挤压机挤压成型材，挤压模具温度控制在400-500℃；
    (5)热处理强化：将挤出的型材在一定时间内经水冷至室温后，经过一定时间后，在一定时间内升温至一温度后保温数小时，再在一定时间内升温至一温度后保温数小时，最后出炉后风冷，得到纵截面呈十字型的长段阀座铝合金型材毛坯，所述长段阀座铝合金型材毛坯在垂向上的高度h不小于截止阀在垂向上的最大高度，长段阀座铝合金型材毛坯的宽度g不小于截止阀的宽度，所述高度h为长短阀座铝合金型材毛坯纵截面的高度，所述的宽度g为长段阀座铝合金型材毛坯纵截面的宽度；
    (6)切割下料：将热处理强化后的长段阀座铝合金型材毛坯按照截止阀的宽度数值切割成多个铝合金截止阀毛坯；
    (7)机加工成铝合金截止阀。
  2. 根据权利要求1所述的一种铝合金截止阀制造方法，其中，在步骤(6)中，当所述铝合金截止阀为阀体和法兰一体的铝合金截止阀时，所述宽度g为沿截止阀气门嘴口中心轴线方向的宽度m，当所述铝合金截止阀的阀体和法兰为分体式结构时，所述宽度g为同时垂直于气门嘴口中心轴线和阀芯口中心轴线方向的宽度n。
  3. 根据权利要求2所述的一种铝合金截止阀制造方法，其中，包括阀体和法兰，所述阀体包括阀身、阀管、加强部、第一接管、第二接管和第三接管，所述阀体和法兰分体设置，所述铝合金截止阀毛坯中的横向部为法兰成型部，所述铝合金截止阀毛坯中的竖向部为阀体成型部，所述横向部的宽度大于所述竖向部的宽度；所述阀体成型部包括位于所述法兰成型部下方的阀体第一成型部和位于所述法兰成型部上方的阀体第二成型部，所述阀体第一成型部用于位于所述法兰下方的第一接管的加工成型，所述阀体第二成型部用于位于所述法兰上方的阀管、位于所述阀管两侧的第二接管和第三接管以及所述加强部的加工成型；所述阀体第一成型部的形状为长方体。
  4. 根据权利要求3所述的一种铝合金截止阀制造方法，其中，所述阀体第二成型部包括竖向主体部，所述竖向主体部用于所述加强部和所述阀管的成型，沿所述竖向主体部的宽度方向，在所述竖向主体部的两侧沿竖直方向镜像对称设有两个圆弧状外凸部和两个矩形外凸部，两个圆弧状外凸部与法兰间隔设置，且所述两个圆弧状外凸部上圆弧所在圆的圆心为所述阀体成型部在高度方向的中心点，且位于所述阀管中心轴线上，所述圆弧状外凸部的直径不小于阀管左右两侧的外螺纹直径；两个所述矩形外凸部位于竖向主体部的上部，所述矩形外凸部上端面与竖向主体部的上端面位于同一平面内，所述矩形外凸部处用于所述阀管上盖帽螺纹成型加工。
  5. 根据权利要求2所述的一种铝合金截止阀制造方法，其中，包括阀体和法兰，所述阀体包括阀身、第一接管、第二接管、第三接管、加强部、安装部，所述阀体和所述法兰分体设置，所述铝合金截止阀毛坯为阀体成型部，所述阀体成型部包括加强部成型部、位于所述加强部成型部两侧的所述阀身成型部和所述第一接管成型部以及位于所述加强部成型部两侧的所述第二接管成型部和所述第二接管成型部；在所述加强部成型部与第一接管成型部之间依次设有与铝合金截止阀上对应部分结构尺寸相匹配的第一部体和安装部。
  6. 根据权利要求5所述的一种铝合金截止阀制造方法，其中，所述加强部成型部位于所述阀身成型部靠近所述第三接管的一侧的上部设有第三部体成型部，所述第三部体成型部的上端面高于所述第三接管成型部的上端面。
  7. 根据权利要求6所述的一种铝合金截止阀制造方法，其中，所述加强部成型部位于所述阀身成型部靠近所述第三接管的一侧的上端面与所述第三接管成型部之间设置有斜面并通过斜面过渡连接。
  8. 根据权利要求7所述的一种铝合金截止阀制造方法，其中，所述加强部成型部位于所述阀身成型部靠近所述第二接管一侧的上端面与所述第二接管成型部位于同一平面内；所述第一接管成型部在法兰成型部上的的长度大于安装部的长度，第一接管成型部宽度方向侧面上部通过自外向内倾斜的倾斜面与安装部的下端连接。
  9. 根据权利要求8所述的一种铝合金截止阀制造方法，其中，在所述加强部成型部和所述阀身成型部之间设有延伸部成型部，所述延伸部成型部与所述阀身成型部同轴设置，所述延伸部成型部在法兰成型部上的长度小于所述阀身成型部的宽度，所述阀身成型部宽度方向上的下部通过向内倾斜的倾斜面与所述延伸部成型部的上端连接。
  10. 一种铝合金截止阀，其特征在于，所述铝合金截止阀根据权利要求1-4任一项所述方法制造而成。
  11. 一种铝合金截止阀，其特征在于，所述铝合金截止阀按照权利要求1-2，5-9任一项所述的方法制造而成。
  12. 根据权利要求11所述的铝合金截止阀，其中，所述法兰设有法兰安装孔，所述安装部插入法兰安装孔内；在法兰安装孔四角设置过渡圆弧，圆弧角度大于90°；所述法兰为对称双孔结构；所述法兰安装孔的长度设置为L1，安装部的长度设置为L2，L1和L2满足关系；0.1≤L1-L2≤0.3mm；法兰安装孔的宽度设置为L3，安装部的宽度设置为L4，L3和L4满足关系：0.1≤L3-L4≤0.3mm。
  13. 根据权利要求11所述的铝合金截止阀，其中，所述法兰包括拼接相连的第一本体和第二本体；所述法兰安装孔包括第一半孔和第二半孔，所述第一半孔设于所述第一本体上，所述第二半孔设于所述第二本体上。
  14. 根据权利要求10-13任一项所述的铝合金截止阀，其中，阀身开设阀腔和阀口；
    阀管连接于所述阀身上；
    加强部设于所述阀身上，且对应于所述阀口的位置设置；所述加强部向所述阀管方向延伸并突出于所述阀身外侧壁，且所述加强部与所述阀管相连；所述加强部包覆所述阀身外侧，所述加强部与所述加强部包覆部分的阀身整体呈矩体状；所述阀身、阀管和加强部为一体结构。
  15. 根据权利要求14所述的铝合金截止阀，其中，所述阀管包括第一接管和第二接管；所述加强部包括第一部体、第二部体，所述第一部体由所述阀身向所述第一接管延伸且与第一接管相连，所述第二部体由所述阀身向所述第二接管延伸且与第二接管相连；所述第二接管上设有接头安装位，所述阀口的轴线与所述第二接管的轴线相交设置；所述阀管还包括第三接管，所述第三接管与所述第二接管同轴设置，所述第一接管与所述阀身同轴设置；所述加强部还包括第三部体，所述第三部体由所述阀身向所述第三接管延伸其与第三接管相连。
  16. 根据权利要求14所述的铝合金截止阀，其中，所述阀身的直径设置为Φ1，所述阀管的直径设置为Φ2；所述加强部的宽度设置为D1，D1和Φ1、Φ2满足关系：D1＞Φ1，D1＞Φ2；所述加强部的高度设置为H，H和Φ2满足关系：H＞Φ2。
PCT/CN2025/103420 2024-07-02 2025-06-25 一种铝合金截止阀制造方法及铝合金截止阀 Pending WO2026007770A1 (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202421545152.5 2024-07-02
CN202421545152.5U CN222669079U (zh) 2024-07-02 2024-07-02 铝合金截止阀
CN202411389529.7A CN119282607B (zh) 2024-09-30 2024-09-30 一种铝合金截止阀制造方法及铝合金截止阀
CN202411389529.7 2024-09-30

Publications (1)

Publication Number Publication Date
WO2026007770A1 true WO2026007770A1 (zh) 2026-01-08

Family

ID=98317665

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2025/103420 Pending WO2026007770A1 (zh) 2024-07-02 2025-06-25 一种铝合金截止阀制造方法及铝合金截止阀

Country Status (1)

Country Link
WO (1) WO2026007770A1 (zh)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105014320A (zh) * 2015-07-20 2015-11-04 中山市祥丰瓦斯器材制品有限公司 一种阀体的制造方法
CN105318071A (zh) * 2014-08-01 2016-02-10 浙江三花汽车零部件有限公司 热力膨胀阀的制造方法及连接方法
CN113106309A (zh) * 2021-04-19 2021-07-13 深圳市华加日西林实业有限公司 铝合金、铝合金型材的制备方法
CN220102216U (zh) * 2023-05-22 2023-11-28 浙江盾安禾田金属有限公司 截止阀阀座及其截止阀
CN220870094U (zh) * 2023-09-14 2024-04-30 浙江盾安人工环境股份有限公司 截止阀
KR20240095503A (ko) * 2022-12-18 2024-06-25 주식회사 세림티앤디 수소자동차 연료공급장치용 레귤레이터의 어퍼 바디 제조 방법 및 그 장치
CN119282607A (zh) * 2024-09-30 2025-01-10 浙江盾安人工环境股份有限公司 一种铝合金截止阀制造方法及铝合金截止阀
CN222669079U (zh) * 2024-07-02 2025-03-25 盾安环境技术有限公司 铝合金截止阀

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105318071A (zh) * 2014-08-01 2016-02-10 浙江三花汽车零部件有限公司 热力膨胀阀的制造方法及连接方法
CN105014320A (zh) * 2015-07-20 2015-11-04 中山市祥丰瓦斯器材制品有限公司 一种阀体的制造方法
CN113106309A (zh) * 2021-04-19 2021-07-13 深圳市华加日西林实业有限公司 铝合金、铝合金型材的制备方法
KR20240095503A (ko) * 2022-12-18 2024-06-25 주식회사 세림티앤디 수소자동차 연료공급장치용 레귤레이터의 어퍼 바디 제조 방법 및 그 장치
CN220102216U (zh) * 2023-05-22 2023-11-28 浙江盾安禾田金属有限公司 截止阀阀座及其截止阀
CN220870094U (zh) * 2023-09-14 2024-04-30 浙江盾安人工环境股份有限公司 截止阀
CN222669079U (zh) * 2024-07-02 2025-03-25 盾安环境技术有限公司 铝合金截止阀
CN119282607A (zh) * 2024-09-30 2025-01-10 浙江盾安人工环境股份有限公司 一种铝合金截止阀制造方法及铝合金截止阀

Similar Documents

Publication Publication Date Title
CN1291043C (zh) 炼铁炉或炼钢炉的冷却板及其制造方法
CN113649427A (zh) 一种6061铝合金薄壁管成型工艺
CN113976789A (zh) 一种带内外法兰结构的钛合金薄壁超大锥角异形环锻件空心缩径挤压成形工艺方法
CN119282607B (zh) 一种铝合金截止阀制造方法及铝合金截止阀
US7905384B1 (en) Cold formed battery terminal
CN114769499A (zh) 一种铝合金轮边轮毂铸锻复合成型工艺
CN111957877B (zh) 用于车辆横臂的锻造成型方法
CN120206177A (zh) 一种轻质材料用自攻自锁螺纹的制造方法
JP2009241100A (ja) 押出ダイス
KR20010105265A (ko) 냉각 판 및 냉각 판의 제조 방법
CN114523063A (zh) 多层预紧挤压模具的轴向变压套比装配方法
CN120244469A (zh) 万向节外花键滑动叉的冷镦生产方法
CN215920824U (zh) 高炉炉缸浇注用模具工装
DE60131005T2 (de) Vorrichtung und verfahren zum giessen von metallen
CN1981952A (zh) 整体法兰阀门阀体模锻成型方法
CN116511314A (zh) 一种制备大规格船用铜镍合金凸缘的模具及方法
CN111230409A (zh) 一种轴承滚道流线控制近净成形工艺
JPH0469009B2 (zh)
CN207014858U (zh) 一种无缝钢管挤压用润滑玻璃垫的加工装置
CN112570579A (zh) 精确分区域控温实现管端缩口增厚的成形装置及方法
CN120133490A (zh) 一种铜钢双金属缸体熔铸加工用毛坯结构
CN116408361B (zh) 一种环筒件径向-反向复合挤压成型的模具及方法
CN111962030A (zh) 一种旋转银靶的制作方法
CN1872448A (zh) 一种外加厚油管的制造方法
WO2018090316A1 (zh) 一种新型绳头锥套的制造方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 25832123

Country of ref document: EP

Kind code of ref document: A1