JPH02290636A - Manufacturing device for three way joint pipe - Google Patents
Manufacturing device for three way joint pipeInfo
- Publication number
- JPH02290636A JPH02290636A JP2101678A JP10167890A JPH02290636A JP H02290636 A JPH02290636 A JP H02290636A JP 2101678 A JP2101678 A JP 2101678A JP 10167890 A JP10167890 A JP 10167890A JP H02290636 A JPH02290636 A JP H02290636A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- tube
- groove
- support base
- shaped
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000000945 filler Substances 0.000 abstract description 18
- 239000007769 metal material Substances 0.000 abstract description 6
- 238000005452 bending Methods 0.000 abstract description 5
- 229910052751 metal Inorganic materials 0.000 description 29
- 239000002184 metal Substances 0.000 description 29
- 239000000463 material Substances 0.000 description 6
- 238000000465 moulding Methods 0.000 description 5
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000000137 annealing Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005482 strain hardening Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、例えば、熱交換器に使用される三方継手管の
製造装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus for manufacturing a three-way joint pipe used in, for example, a heat exchanger.
熱交換器のパイプの接続に使用される三方継手管は、第
７図に示すように、Ｔ字状になっていて、各端部Ａが同
一方向に延びている。なお、図中Ｂはアルミフィン、Ｃ
はパイプである。The three-way joint tube used to connect the pipes of the heat exchanger has a T-shape, as shown in FIG. 7, with each end A extending in the same direction. In addition, B in the figure is an aluminum fin, C
is a pipe.
従来、この種の三方継手管の製造方法として、例えば第
８図ｔａ＞， ｆｂ）， （Ｃ）に示すように、金属パ
イプ１をバルジ加工してその中間部を膨出させた後、膨
出部ｌの頭部を切除して開口し、次いで金属パイプ１を
Ｕ字状に屈曲し、その後開口した膨出部１ａにＬ字管２
の端部を嵌挿し、ろう付して製造する方法が知られてい
る。Conventionally, as a manufacturing method for this type of three-way joint pipe, as shown in FIGS. The head of the protruding part l is cut out to open it, then the metal pipe 1 is bent into a U-shape, and then the L-shaped pipe 2 is inserted into the opened bulging part 1a.
A method is known in which the ends of the wire are fitted and brazed.
上記方法によれば、ウレタンを充填するか、液圧を利用
して金属バイプｌをバルジ加工するが、膨出部１ａを長
くして三方にほぼ同一長さ延びるように分岐したＴ字管
に成形することが非常に難しく、歩留りが悪く、実際に
は問題とならず、このため膨出部１ａを接続部として利
用するだけの長さにして、該膨出部１ａに別に形成した
Ｌ字管２をろう付けしていた。According to the above method, the metal vip l is bulged by filling with urethane or using hydraulic pressure, but the bulging part 1a is lengthened to form a T-tube branched to extend approximately the same length in three directions. It is very difficult to mold, the yield is low, and it is not a problem in practice. Therefore, the bulge part 1a is made long enough to be used as a connection part, and an L-shape is formed separately on the bulge part 1a. Pipe 2 was being brazed.
このため、製造に時間がかかり、且つ熟練した技術を必
要とし、またろう付部分に少しでも欠陥があると長時間
の使用により漏れが生じる問題があった。また、ろう付
部分のパイプ内壁に形成される段部により冷媒の流れに
乱れが生じる問題もあった。For this reason, manufacturing takes time and requires skilled techniques, and if there is even the slightest defect in the brazed portion, there is a problem that leakage may occur after long-term use. Further, there was also the problem that the flow of the refrigerant was disturbed by the stepped portion formed on the inner wall of the pipe at the brazed portion.
本発明は、Ｔ字状のキャビテイを有する金型に金属パイ
プをセソトし、充填材を詰めた金属パイプの両端部から
、充填材を押圧して金属パイプの中間部を空いたキャビ
テイ部分内に膨出し、三方に分岐したＴ字管を同一方向
に屈曲するための製造装置を提供するものである。In the present invention, a metal pipe is placed in a mold having a T-shaped cavity, and the filler is pressed from both ends of the metal pipe filled with a filler to fill the middle part of the metal pipe into the empty cavity. The present invention provides a manufacturing device for bending a T-tube that has bulged and branched into three directions in the same direction.
本発明は、前記目的を達成するために、金属パイプを三
方向に延びるように分岐したＴ字管の各管部を支持する
横断面半円形状の溝を形成したＴ字状支持台と、該丁字
状支持台の分岐する金属パイプの位置に下端を載置し、
Ｔ字状支持台と垂直に配置され、Ｔ字管の各管部を支持
する横断面半円形状の溝と対向する横断面半円形状の溝
を形成した押え型部材とを備え、前記Ｔ字状支持台はそ
の分岐部を中心に押え型部材の各側面の溝に管部を沿わ
せることができるように回動自在に構成され、Ｔ字管の
各管部を支持する横断面半円形状の溝内に位置する各管
部に挿入される心棒が支持台の端部に固定されるピスト
ンロッドに沿って移動可能に設けられていることを特徴
とするものである。In order to achieve the above object, the present invention provides a T-shaped support base in which a groove with a semicircular cross section is formed to support each tube part of a T-shaped tube which branches a metal pipe so as to extend in three directions; Place the lower end of the T-shaped support at the branching metal pipe position,
a holding member disposed perpendicularly to the T-shaped support base and having a groove with a semicircular cross section that supports each tube part of the T-shaped tube and a groove with a semicircular cross section opposing the T-shaped support; The character-shaped support base is configured to be rotatable around the branching part so that the pipe part can be placed along the grooves on each side of the holding mold member, and has a cross-sectional half that supports each pipe part of the T-shaped pipe. This device is characterized in that a mandrel inserted into each tube portion located in a circular groove is movable along a piston rod fixed to an end of a support base.
本発明の構成により、三方に分岐したＴ字管の金属パイ
プをＴ字状支持台にセントし、金属パイプの分岐部に配
置した押え型部材の下端を回動中心として、前記Ｔ字状
支持台を回動し、三方継手管を製造することができ、製
造時間を短縮し、漏れのおそれのない、かつ冷媒等の流
れに乱れを生じさせない三方継手管の製造装置を提供で
きる。According to the structure of the present invention, a metal pipe of a T-shaped tube branched in three directions is placed on a T-shaped support base, and the lower end of the holding member disposed at the branching part of the metal pipe is used as the center of rotation for said T-shaped support. It is possible to provide a manufacturing device for a three-way joint pipe that can manufacture a three-way joint pipe by rotating a table, shortens manufacturing time, and is free from leakage and does not cause disturbances in the flow of refrigerant or the like.
以下、本発明の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described below based on the drawings.
第３図に示すように、適宜長さに切断された金属パイプ
５内に、該金属パイプ５を形成する金属材よりも低融点
の軟質金属材からなる充填材６を溶融した状態で充填す
る。As shown in FIG. 3, a metal pipe 5 cut to an appropriate length is filled with a molten filler 6 made of a soft metal material with a lower melting point than the metal material forming the metal pipe 5. .
金属パイプ５としては、例えば銅パイプが使用され、ま
た充填材６としては鉛が使用される。また、充填材６を
充填するに際し、空洞が形成されないように空気を抜き
つつ行う。なお、充填材６を溶融して充填する代わりに
、予め金属パイプ５の内径と合致する径を有する棒状の
充填材６を形成して、これを金属パイプ５内に圧入する
ようにしてもよい。As the metal pipe 5, for example, a copper pipe is used, and as the filler material 6, lead is used. Further, when filling the filler 6, air is removed so as not to form a cavity. Note that instead of melting and filling the filler 6, a rod-shaped filler 6 having a diameter matching the inner diameter of the metal pipe 5 may be formed in advance and then press-fitted into the metal pipe 5. .
充填材６が凝固して室温程度まで冷却されたら、金属バ
イブ５を第４図に示すように、Ｔ字状のキャビテイ７を
有する金型８の該キャビテイ７内にセットする。そして
、図示しない油圧シリンダに連結された押圧部材９，９
により金属パイプ５の両端開口部から充填材６を押圧す
る。After the filler 6 is solidified and cooled to about room temperature, the metal vibrator 5 is set in the cavity 7 of a mold 8 having a T-shaped cavity 7, as shown in FIG. Pressing members 9, 9 connected to a hydraulic cylinder (not shown)
The filling material 6 is pressed from both end openings of the metal pipe 5.
これにより、金属パイブ５は充填材６により、その中間
部分が第５図に示すように、空いたキャビテイ部分７ａ
内に膨出させられ、三方にほぼ同一長さ延びるように分
岐したＴ字状に成形される。As a result, the metal pipe 5 is filled with the filling material 6, so that the middle part of the metal pipe 5 becomes an empty cavity part 7a as shown in FIG.
It is formed into a T-shape that is bulged inward and branched to extend approximately the same length on three sides.
従来のバルジ加工では、ウレタンを充填材として使用す
る充填成形か、或いは加圧油を使用する液圧成形により
行っていたので、膨出部１ａを長くすることが非常に困
難であったが、上記実施例では鉛等の軟質金属材を充填
材をして使用しているため、何ら支障なく膨出部を長く
することができる。In conventional bulge processing, it was performed by filling molding using urethane as a filler or by hydraulic molding using pressurized oil, so it was very difficult to lengthen the bulging portion 1a. In the above embodiment, since a soft metal material such as lead is used as a filler, the bulge can be made longer without any problem.
すなわち、ウレタンを充填材としたときにはウレタン自
体が圧縮されたしまう不都合があり、また加圧油を使用
するときには、加圧油が両端開口部から漏れないように
密封した状態で加圧しなければならず、膨出部１ａを長
くするために圧力を高くすると、どうしても金属パイプ
の両端開口部から加圧油が漏れる不都合があり、いずれ
も膨出部１ａに充分に圧力を作用させるのが困難であっ
た。In other words, when urethane is used as a filler, there is the disadvantage that the urethane itself is compressed, and when pressurized oil is used, it must be pressurized in a sealed state to prevent the pressurized oil from leaking from the openings at both ends. First, if the pressure is increased in order to lengthen the bulging portion 1a, pressurized oil inevitably leaks from the openings at both ends of the metal pipe, and in both cases, it is difficult to apply sufficient pressure to the bulging portion 1a. there were.
これに対し、鉛等の軟質金属材を使用するときには、そ
れ自体圧縮されるという不都合がなく、また加圧油が漏
れるという不都合がなく、膨出部に充分に圧力を作用さ
せて膨出させることができる。On the other hand, when using soft metal materials such as lead, there is no inconvenience that the material itself is compressed, and there is no inconvenience that pressurized oil leaks, and sufficient pressure is applied to the bulging part to make it bulge. be able to.
上述のように、金属パイプ５をＴ字状に成形した後、膨
出部の頭部を切除して、全体を充填材６の融点以上に加
熱して充填材６を溶かし出す。この際、加熱が焼なまし
となり、成形時の加工硬化が除去される。従って、成形
加工後にいちいち焼なましをする必要がない。これによ
り、第６図に示すようなＴ字管１０が製造される。As described above, after the metal pipe 5 is formed into a T-shape, the head of the bulging portion is cut off, and the whole is heated to a temperature higher than the melting point of the filler 6 to melt the filler 6. At this time, heating serves as annealing, and work hardening during molding is removed. Therefore, there is no need to perform annealing after each molding process. As a result, a T-shaped tube 10 as shown in FIG. 6 is manufactured.
次いで、このＴ字管１０の三方に分岐した各管部１０ａ
の分岐部を固定して、三方に分岐した各管部１０ａ，１
０ａ，１０ａを同一方向に屈曲する。Next, each pipe portion 10a of this T-shaped pipe 10 branches into three directions.
The branch portions of the pipes 10a and 1 are fixed and branched into three directions.
0a and 10a are bent in the same direction.
第１図（ａ）， （ｂｌは、Ｔ字管１０を上述のように
屈曲する本発明のペンディングマシンを示している。FIGS. 1(a) and 1(bl) show a pending machine of the present invention for bending the T-tube 10 as described above.
ペンディングマシンは、各Ｗ部１ ０ ａ， １ ０
ａ，１０ａを支持する横断面半円形状の溝１１ａが形
成され、Ｔ字管１０と同形状のＴ字状に配設された支持
台１１．１１．１１と、三側面にそれぞれ横断面半円形
状の溝１２ａが形成され、屈曲時にＴ字管１０の三方に
分岐した各管部ｌＯの分岐部を固定する押え型部材１２
とから構成されている。The pending machine has each W part 1 0 a, 1 0
A groove 11a with a semicircular cross section is formed to support the tubes 10a and 10a. A holding member 12 in which a circular groove 12a is formed and which fixes the branching portion of each tube portion 10 branching into three directions of the T-shaped tube 10 when bent.
It is composed of.
Ｔ字状に配設された支持台１１，１１．１１は、各管部
１０の分岐部を中心に押え型部材１２の側面に対向しう
るように回動ずることができる。The support stands 11, 11.11 arranged in a T-shape can be rotated around the branching part of each tube part 10 so as to face the side surface of the presser mold member 12.
また、各支持台１１の端面には、案内軸１３が固定され
、この案内軸１３には移動板ｌ４が移動自在に装備され
ている。そして、この移動板１４の下部には、支持台１
１の下面に固定した油圧シリンダ１５のピストンロッド
１６の端部が固定され、また上部には管部１０ａ内に挿
入される心捧ｌ７の端部が固定されていて、油圧シリン
ダ１５により心棒１７が管部１０ａ内の所定位置に移動
操作されることができる。Further, a guide shaft 13 is fixed to the end face of each support stand 11, and a movable plate l4 is movably mounted on this guide shaft 13. At the bottom of this movable plate 14, a support stand 1 is provided.
An end of a piston rod 16 of a hydraulic cylinder 15 is fixed to the lower surface of the hydraulic cylinder 15, and an end of a piston rod 17 to be inserted into the pipe portion 10a is fixed to the upper part of the hydraulic cylinder 15. can be moved to a predetermined position within the tube portion 10a.
上記本発明のペンディングマシンにより、Ｔ字管１０の
各管部１０ａを同一方向に屈曲するには、各管部１０ａ
を溝１１ａにセットし、押え型部材１２によりＴ字管１
０に分岐部上に固定し、次いで、各油圧シリンダｌ５を
動作して各管部１０ａ内に心棒１７を挿入し、しかる後
、各支持台１ｌはＴ字管１０の分岐部を支点として押え
型部材１２の溝１２ａに向かって回動され、このため、
各管部１０ａは押え型部材１２の溝１２ａに嵌入させら
れる。これにより、Ｔ字管１０の各管部１０ａは、第２
図に示すように屈曲され、三方継手管が形成される。In order to bend each tube section 10a of the T-shaped tube 10 in the same direction by the above-mentioned pending machine of the present invention, each tube section 10a is bent in the same direction.
is set in the groove 11a, and the T-tube 1 is held by the holding member 12.
0 on the branch part, then each hydraulic cylinder l5 is operated to insert the mandrel 17 into each pipe part 10a, and after that, each support stand 1l is held down using the branch part of the T-tube 10 as a fulcrum. It is rotated towards the groove 12a of the mold member 12, so that
Each tube portion 10a is fitted into a groove 12a of the holding mold member 12. Thereby, each tube portion 10a of the T-shaped tube 10 is connected to the second tube portion 10a.
It is bent as shown in the figure to form a three-way joint tube.
このように、Ｔ字管１０の分岐部を押え型部材１２の端
部で固定した状態で屈曲すると、Ｔ字管１０は分岐部を
中心に均等に屈曲し、各管部１０ａの長さを一定とする
ことができる。従来の三方継手管では、バルジ加工後の
金属パイプ１をＵ字状に屈曲するのに、金属パイプ１の
の一方の端部を押え型部材に固定し、他方の端部を押え
型部材に倣うように押え型部材側に押圧していた。すな
わち、金属パイプ１の中間部を固定することなく屈曲し
ていたので、一方の端部と他方の端部が揃わずに（この
とき膨出部１ａはＵ字管の中間部から多少ずれてしまう
）、屈曲後に揃える必要があった。In this way, when the T-tube 10 is bent with the branch part fixed at the end of the holding member 12, the T-tube 10 is bent evenly around the branch part, and the length of each pipe part 10a is It can be kept constant. In the conventional three-way joint pipe, in order to bend the metal pipe 1 into a U-shape after bulge processing, one end of the metal pipe 1 is fixed to a holding mold member, and the other end is fixed to the holding mold member. It was pressed against the presser mold member side in a similar manner. In other words, since the middle part of the metal pipe 1 was bent without being fixed, one end and the other end were not aligned (at this time, the bulging part 1a was slightly shifted from the middle part of the U-shaped pipe). ), it was necessary to align them after bending.
以上説明したように、本発明の三方継手管の製造装置に
よれば、軟質金属材からなる充填材を使用して、金属パ
イプを三方にほぼ同一長さに分岐したＴ字管を、支持台
の溝に設置し、このＴ字管の分岐部に押え型部材の端部
を固定し、この押え型部材の端部を中心に支持台を押え
型部材の溝に向かって回動し、この際、心棒の先端を移
動させながら、Ｔ字管の管部を補強して屈曲することが
できる。As explained above, according to the three-way joint pipe manufacturing apparatus of the present invention, a T-shaped pipe in which a metal pipe is branched into three directions with substantially the same length is supported on a support using a filler made of a soft metal material. The end of the holding mold member is fixed to the branch part of this T-shaped tube, and the support base is rotated around the end of this holding mold member toward the groove of the holding mold member. At this time, the tube portion of the T-tube can be reinforced and bent while moving the tip of the mandrel.
本発明においては、Ｔ字管は金属パイプの材質よりも低
融点の充填材を使用して成形され、充填材を金属パイプ
より除去する際、加熱して溶かし出すので、この加熱は
焼なましとして作用し、成形加工時の加工硬化を除去で
き、ペンディングマシンにおける屈曲に好都合である。In the present invention, the T-tube is formed using a filler that has a lower melting point than the material of the metal pipe, and when the filler is removed from the metal pipe, it is heated and melted, so this heating is required for annealing. It can eliminate work hardening during molding and is convenient for bending in pending machines.
本発明では、従来の三方継手管のように、ろう付作業を
必要とせず、製造時間の短縮が可能であり、ろう付部か
らの漏れが生じることがなくなり、冷媒等の流れに乱れ
が生じることない。Unlike conventional three-way joint pipes, the present invention does not require brazing work, reducing manufacturing time, and eliminates leakage from brazed parts, which causes disturbances in the flow of refrigerant, etc. Never.
本発明の構成によれば、金属パイプを三方にほぼ同一長
さに分岐して形成したＴ字管を、ペンディングマシンで
短時間に効率よく成形することができ、精度のよい三方
継手管を製造することができる。According to the configuration of the present invention, a T-shaped pipe formed by branching a metal pipe into three directions with substantially the same length can be formed efficiently using a pending machine in a short time, and a highly accurate three-way joint pipe can be manufactured. can do.
第１図（ａ）． （ｂｌは本発明の製造装置を示す側面
図及び断面図、
第２図は本発明の製造装置により製造された三方継手管
の斜視図、
第３図は金属パイプに充填材を充填した状態を示す断面
図、
第４図、第５図は金属バイブをＴ字管にする製造装置及
び作動を示す断面図、
第６図はＴ字管製造装置により製造されたＴ字管の断面
図、
第７図は熱交換器に使用された三方継手管の斜視図、
第８図（８１， （ｂｌ， （Ｃ）は従来の三方継手管
の製造方法を説明する説明図である。
１０・・・Ｔ字管、１０ａ・・・管部、ｌ１・・・支持
台、１１ａ・・・支持台の溝、１２・・・押え型部材、
１２ａ・・・押え型部材の溝、１３・・・案内軸、１４
・・・移動板、ｌ５・・・油圧シリンダ、１６・・・ピ
ストンロッド、１７・・・心棒。Figure 1(a). (bl is a side view and sectional view showing the manufacturing apparatus of the present invention, Figure 2 is a perspective view of a three-way joint pipe manufactured by the manufacturing apparatus of the present invention, Figure 3 is a state in which the metal pipe is filled with filler material. 4 and 5 are sectional views showing a manufacturing device and its operation for turning a metal vibrator into a T-tube. FIG. 6 is a sectional view of a T-tube manufactured by the T-tube manufacturing device. FIG. 7 is a perspective view of a three-way joint pipe used in a heat exchanger, and FIG. T-shaped tube, 10a...tube part, l1...support stand, 11a...groove of support stand, 12...presser mold member,
12a... Groove of presser mold member, 13... Guide shaft, 14
... Moving plate, l5... Hydraulic cylinder, 16... Piston rod, 17... Mandrel.
Claims (1)
管部を支持する横断面半円形状の溝を形成したＴ字状支
持台と、該Ｔ字状支持台の分岐する金属パイプの位置に
下端を載置し、Ｔ字状支持台と垂直に配置され、Ｔ字管
の各管部を支持する横断面半円形状の溝と対向する横断
面半円形状の溝を形成した押え型部材とを備え、前記Ｔ
字状支持台はその分岐部を中心に押え型部材の各側面の
溝に管部を沿わせることができるように回動自在に構成
され、Ｔ字管の各管部を支持する横断面半円形状の溝内
に位置する各管部に挿入される心棒が支持台の端部に固
定されるピストンロッドに沿って移動可能に設けられて
いることを特徴とする三方継手管の製造装置。A T-shaped support base having a groove with a semicircular cross section that supports each tube part of a T-shaped pipe branched so as to extend in three directions; a presser foot with its lower end placed in a position perpendicular to the T-shaped support base, and formed with a groove having a semicircular cross section opposite to a groove having a semicircular cross section that supports each tube part of the T-shaped tube; and a mold member, the T
The character-shaped support base is configured to be rotatable around the branching part so that the pipe part can be placed along the grooves on each side of the holding mold member, and has a cross-sectional half that supports each pipe part of the T-shaped pipe. 1. An apparatus for manufacturing a three-way joint tube, characterized in that a mandrel inserted into each tube section located in a circular groove is movable along a piston rod fixed to an end of a support base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2101678A JPH02290636A (en) | 1990-04-19 | 1990-04-19 | Manufacturing device for three way joint pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2101678A JPH02290636A (en) | 1990-04-19 | 1990-04-19 | Manufacturing device for three way joint pipe |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57091321A Division JPS58209431A (en) | 1982-05-31 | 1982-05-31 | Manufacture of three-way pipe joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02290636A true JPH02290636A (en) | 1990-11-30 |
| JPH0362493B2 JPH0362493B2 (en) | 1991-09-26 |
Family
ID=14307011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2101678A Granted JPH02290636A (en) | 1990-04-19 | 1990-04-19 | Manufacturing device for three way joint pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02290636A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086025C (en) * | 1996-04-18 | 2002-06-05 | 株式会社日立制作所 | Three-way pipe, method of manufacturing same and air conditioner using same |
| CN102335686A (en) * | 2011-09-15 | 2012-02-01 | 佛山市顺德区燉煌五金塑料实业有限公司 | Machine for bending and forming tee pipes |
| CN106001155A (en) * | 2016-07-04 | 2016-10-12 | 上虞市舜阳管件有限公司 | Forming mold and process for stretch reducing type extruded tee joint |
| CN106391783A (en) * | 2015-07-30 | 2017-02-15 | 珠海华宇金属有限公司 | Automatic pipe bending equipment for capillary tubes of four-way reversing valve |
| US9586248B1 (en) | 2016-04-08 | 2017-03-07 | King Saud University | System for forming a T-shaped tubular fitting |
| CN109772965A (en) * | 2018-12-10 | 2019-05-21 | 杭州玖谷机械科技有限公司 | Fluid diverter production method |
| CN118663744A (en) * | 2024-08-21 | 2024-09-20 | 潍坊欧迈德工贸有限公司 | Tee bend elbow shaping processing integration equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5622287A (en) * | 1979-07-30 | 1981-03-02 | Ibm | Bipolar transistor memory cell |
-
1990
- 1990-04-19 JP JP2101678A patent/JPH02290636A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5622287A (en) * | 1979-07-30 | 1981-03-02 | Ibm | Bipolar transistor memory cell |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086025C (en) * | 1996-04-18 | 2002-06-05 | 株式会社日立制作所 | Three-way pipe, method of manufacturing same and air conditioner using same |
| CN102335686A (en) * | 2011-09-15 | 2012-02-01 | 佛山市顺德区燉煌五金塑料实业有限公司 | Machine for bending and forming tee pipes |
| CN106391783A (en) * | 2015-07-30 | 2017-02-15 | 珠海华宇金属有限公司 | Automatic pipe bending equipment for capillary tubes of four-way reversing valve |
| CN106391783B (en) * | 2015-07-30 | 2019-05-07 | 珠海华宇金属有限公司 | Four-way reversing valve capillary automatic bend pipe equipment |
| US9586248B1 (en) | 2016-04-08 | 2017-03-07 | King Saud University | System for forming a T-shaped tubular fitting |
| CN106001155A (en) * | 2016-07-04 | 2016-10-12 | 上虞市舜阳管件有限公司 | Forming mold and process for stretch reducing type extruded tee joint |
| CN106001155B (en) * | 2016-07-04 | 2020-06-02 | 浙江舜阳管件有限公司 | Forming die and process for stretching reducing type extrusion tee joint |
| CN109772965A (en) * | 2018-12-10 | 2019-05-21 | 杭州玖谷机械科技有限公司 | Fluid diverter production method |
| CN118663744A (en) * | 2024-08-21 | 2024-09-20 | 潍坊欧迈德工贸有限公司 | Tee bend elbow shaping processing integration equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0362493B2 (en) | 1991-09-26 |
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