ES2337302T3 - PROCEDURE FOR THE PRODUCTION OF A CONSTRUCTION PART OF HOLLOW VALVE FOR COMBUSTION ENGINES OR TURBINES, AND CONSTRUCTION PART OF HOLLOW VALVE PRODUCED ACCORDING TO THE SAME. - Google Patents

PROCEDURE FOR THE PRODUCTION OF A CONSTRUCTION PART OF HOLLOW VALVE FOR COMBUSTION ENGINES OR TURBINES, AND CONSTRUCTION PART OF HOLLOW VALVE PRODUCED ACCORDING TO THE SAME. Download PDF

Info

Publication number
ES2337302T3
ES2337302T3 ES07118021T ES07118021T ES2337302T3 ES 2337302 T3 ES2337302 T3 ES 2337302T3 ES 07118021 T ES07118021 T ES 07118021T ES 07118021 T ES07118021 T ES 07118021T ES 2337302 T3 ES2337302 T3 ES 2337302T3
Authority
ES
Spain
Prior art keywords
temperature
hollow valve
takes place
alloy
construction part
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.)
Active
Application number
ES07118021T
Other languages
Spanish (es)
Inventor
Eckhard Aust
Wolfgang Limberg
Ralf Pieplow
Nils Mildner
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.)
GKSS Forshungszentrum Geesthacht GmbH
Original Assignee
GKSS Forshungszentrum Geesthacht GmbH
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
Application filed by GKSS Forshungszentrum Geesthacht GmbH filed Critical GKSS Forshungszentrum Geesthacht GmbH
Application granted granted Critical
Publication of ES2337302T3 publication Critical patent/ES2337302T3/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
    • B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/008—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of engine cylinder parts or of piston parts other than piston rings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/009—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of turbine components other than turbine blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/20—Shapes or constructions of valve members, not provided for in preceding subgroups of this group
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2301/00—Using particular materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2303/00—Manufacturing of components used in valve arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49298—Poppet or I.C. engine valve or valve seat making

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • General Engineering & Computer Science (AREA)
  • Powder Metallurgy (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

Procedimiento para la producción de una parte constructiva de válvula hueca para motores de combustión o turbinas, en el que: a).- en una máquina de amasar se mezclan metal en polvo y/o aleación de metales en polvo junto con un agente ligante y eventualmente un material de relleno; b).- mediante colada por inyección se introduce la mezcla en un molde; c).- se desliga químicamente la masa moldeada; d).- la masa, químicamente desligada, se desliga térmicamente a una temperatura inferior a 450ºC; e).- la masa, químicamente y térmicamente desligada, se sinteriza a una temperatura inferior a la temperatura de fusión del metal y/o de la aleación de metales, para la producción de la parte constructiva.Procedure for the production of a hollow valve construction part for combustion engines or turbines, in which: a) .- in a kneading machine, powder metal and / or alloy of powdered metals are mixed together with a binding agent and possibly a filler material; b) .- by injection casting the mixture is introduced into a mold; c) .- the molded mass is chemically removed; d) .- the mass, chemically detached, thermally slides at a temperature below 450 ° C; e) .- The mass, chemically and thermally detached, is sintered at a temperature below the melting temperature of the metal and / or the metal alloy, for the production of the construction part.

Description

Procedimiento para la producción de una parte constructiva de válvula hueca para motores de combustión o turbinas, y parte constructiva de válvula hueca producida según el mismo.Procedure for the production of a part constructive hollow valve for combustion engines or turbines, and constructive part of hollow valve produced according to it.

La presente invención se refiere a un procedimiento para la producción de partes constructivas (componentes) para motores de combustión o turbinas, en especial para la producción de partes constructivas de válvulas huecas.The present invention relates to a procedure for the production of construction parts (components) for combustion engines or turbines, especially for the production of constructive parts of hollow valves.

De los motores de combustión se esperan hoy en día grandes potencias y un reducido consumo de combustible. Las válvulas para el intercambio de gases, como se utilizan en motores de combustión, deben hacer frente a temperaturas de servicio y solicitaciones mecánicas, muy elevadas. Los platos (discos) de las válvulas de admisión, que en cada ciclo o tiempo de aspiración son rodeadas y refrigeradas por flujos de gases frescos fríos, alcanzan temperaturas superiores a 500ºC. Las válvulas de escape alcanzan temperaturas superiores a 800ºC.Combustion engines are expected today in Great powers day and reduced fuel consumption. The valves for gas exchange, as used in engines of combustion, must cope with operating temperatures and mechanical solicitations, very high. The plates (discs) of the intake valves, which in each cycle or suction time are surrounded and cooled by cold fresh gas flows, they reach temperatures above 500 ° C. Exhaust valves reach temperatures above 800 ° C.

Dado que en el caso de las válvulas se trata de partes constructivas móviles, la potencia necesaria para su accionamiento crece exponencialmente con el peso de las masas en oscilación, es decir de las válvulas. De ello se desprende el requerimiento de continuar con la optimización de las válvulas en lo que a su peso se refiere, sin penalizar su resistencia mecánica y térmica.Since in the case of the valves it is about mobile construction parts, the necessary power for your drive grows exponentially with the weight of the masses in oscillation, that is, of the valves. It follows requirement to continue optimizing the valves in which refers to its weight, without penalizing its mechanical resistance and thermal

Las válvulas huecas con un vástago o fuste, un macho de válvula y un plato de válvula, en las que el macho de válvula y el plato de válvula forman conjuntamente un espacio hueco, son conocidas, por ejemplo del documento DE 198 04 053 A1. Conforme al estado actual de la técnica, tales válvulas huecas, o partes de válvulas huecas, se forman sea mediante prensas de extrusión en caliente sea mediante recalcado y forjado. A tal efecto, para el macho de válvula y plato de válvula se emplean predominantemente aceros resistentes a las altas temperaturas como los materiales Nºs 1.4882 (X 50 CrMnNiNbN 21 9), 1.4871 (X 53 CrMnNiN 21 9) o 2.4955 (NiFe 25 Cr 20 NbTi). Debido a la elevada reactividad del titanio frente al oxígeno, nitrógeno y carbono y la fragilización del material, asociada con dicha reactividad, para obtener partes constructivas de válvulas huecas mediante los procedimientos mencionados no es posible incorporar otros materiales, en especial materiales para construcciones livianas basados en titanio en forma de polvo, por lo menos de manera económica.Hollow valves with a stem or shaft, a valve male and a valve plate, in which the male of valve and the valve plate together form a hollow space, they are known, for example from document DE 198 04 053 A1. According to the current state of the art, such hollow valves, or parts of hollow valves, are formed either by extrusion presses in warm by highlighting and forging. To that end, for the Valve male and valve plate are predominantly used high temperature resistant steels such as materials Nºs 1.4882 (X 50 CrMnNiNbN 21 9), 1.4871 (X 53 CrMnNiN 21 9) or 2.4955 (NiFe 25 Cr 20 NbTi). Due to the high reactivity of titanium against oxygen, nitrogen and carbon and the embrittlement of material, associated with said reactivity, to obtain parts construction of hollow valves through procedures It is not possible to incorporate other materials, especially lightweight construction materials based on titanium in shape of dust, at least economically.

Por ello el objetivo de la invención consiste en poner a disposición un procedimiento para la producción de partes constructivas de válvulas huecas como machos de válvula o platos de válvula, con el que sea posible elaborar de manera económica también otros materiales.Therefore, the objective of the invention is to make available a procedure for the production of parts construction of hollow valves such as valve males or plates of valve, with which it is possible to prepare economically also other materials.

El objetivo se logra mediante un procedimiento para la producción de partes constructivas de válvulas huecas para motores de combustión o turbinas, en el que:The objective is achieved through a procedure for the production of hollow valve construction parts for combustion engines or turbines, in which:

a).- en una máquina de amasar se mezclan metal en polvo y/o aleación de metales en polvo junto con un agente ligante y eventualmente un material de relleno;a) .- in a kneading machine mix metal powder and / or alloy of powdered metals together with an agent binder and possibly a filler material;

b).- mediante colada por inyección se introduce la mezcla en un molde;b) .- by injection casting is introduced the mixture in a mold;

c).- se desliga químicamente la masa moldeada;c) .- the dough chemically slips molded;

d).- la masa, químicamente desligada, se desliga térmicamente a una temperatura inferior a 450ºC;d) .- the mass, chemically detached, slips thermally at a temperature below 450 ° C;

e).- la masa, químicamente y térmicamente desligada, se sinteriza a una temperatura inferior a la temperatura de fusión del metal y/o de la aleación de metales, para la producción de la parte constructiva.e) .- mass, chemically and thermally detached, sintered at a temperature below the temperature of fusion of metal and / or alloy of metals, for the production of the constructive part.

La invención se refiere también a las partes constructivas de válvulas huecas producidas mediante este procedimiento.The invention also relates to the parts construction of hollow valves produced by this process.

Mediante el procedimiento conforme a la invención es posible trabajar de manera económica, además de los aceros o aleaciones basadas en níquel martensíticos-ferríticos y austeníticos, también y en especial materiales basados en titanio de manera de obtener partes constructivas de válvulas huecas, con lo que es posible lograr una mayor reducción del peso con respecto a las válvulas huecas conocidas. Se prefiere el empleo de aleaciones de titanio que contengan aluminio y/o vanadio como componentes adicionales. En cada caso es preferible que estos componentes de aleación adicionales se encuentren contenidos en una cantidad de 2 a 10% en peso referido al peso total de la aleación.By the procedure according to the invention it is possible to work economically, in addition to the nickel based steels or alloys martensitic-ferritic and austenitic, also and especially titanium based materials so as to obtain construction parts of hollow valves, making it possible achieve greater weight reduction compared to valves known hollows. The use of titanium alloys is preferred containing aluminum and / or vanadium as additional components. In Each case is preferable than these alloy components additional contents are found in an amount of 2 to 10% in weight referred to the total weight of the alloy.

El agente ligante se elige preferentemente del grupo consistente en: poliamidas, polioximetileno, policarbonato, estireno-acrilonitrilo copolimerizados, poliimida, ceras y aceites naturales, duroplastos, cianatos, polipropileno, poliacetato, polietileno, etileno-acetato de etileno, alcohol polivinílico, cloruro de polivinilo, poliestireno, polimetilmetacrilato, anilinas, aceites minerales, agua, agar, glicerina, polivinilbutirilo, polibutilmetacrilato, celulosa, ácido oleico, ftalatos, ceras de parafina, cera de carnauba, poliacrilato de amonio, estearato y oleato de diglicéridos, monoestearato de glicerilo, titanato de isopropilo, estearato de litio, monoglicéridos, formaldehido, fosfato de ácido octílico, sulfonatos de olefina, ésteres de fosfato, ácido esteárico, y mezclas de los mismos. Es preferible que la proporción volumétrica del agente ligante sea inferior a 60%; es más preferible que se encuentre en el intervalo de 20 a 50%.The binding agent is preferably chosen from group consisting of: polyamides, polyoxymethylene, polycarbonate, copolymerized styrene-acrylonitrile, polyimide, natural waxes and oils, duroplasts, cyanates, polypropylene, polyacetate, polyethylene, ethylene acetate ethylene, polyvinyl alcohol, polyvinyl chloride, polystyrene, polymethylmethacrylate, anilines, mineral oils, water, agar, glycerin, polyvinylbutyryl, polybutyl methacrylate, cellulose, acid oleic, phthalates, paraffin waxes, carnauba wax, polyacrylate of ammonium, stearate and diglyceride oleate, monostearate glyceryl, isopropyl titanate, lithium stearate, monoglycerides, formaldehyde, octyl acid phosphate, sulphonates of olefin, phosphate esters, stearic acid, and mixtures of same. It is preferable that the volumetric proportion of the agent binder is less than 60%; it is more preferable that you are in the range of 20 to 50%.

Es preferible que el mezclado en la máquina amasadora tenga lugar a una temperatura de 50 a 250ºC, de manera especialmente preferida, de 90 a 150ºC.It is preferable that mixing in the machine kneader take place at a temperature of 50 to 250 ° C, so Especially preferred, from 90 to 150 ° C.

También es preferible que para la colada por inyección la mezcla tenga una temperatura de 90 a 150ºC, preferentemente bajo una presión de 400 a 800 bar.It is also preferable that for laundry by Injection the mixture has a temperature of 90 to 150ºC, preferably under a pressure of 400 to 800 bar.

Es preferible que el desligado químico tenga lugar en un baño de parafina, preferentemente en un baño de hexano. En este caso, el desligado químico tiene preferentemente lugar a una temperatura de de 10 a 65ºC, más preferentemente de 30 a 50ºC.It is preferable that the chemical stripper has place in a paraffin bath, preferably in a hexane bath. In this case, the chemical stripping preferably takes place at a temperature of 10 to 65 ° C, more preferably 30 to 50 ° C.

El desligado térmico tiene lugar a una temperatura inferior a 450ºC, preferentemente de 200 a 350ºC, y preferentemente al vacío bajo una presión de preferentemente 2 a 20 mbar.The thermal stripping takes place at a temperature below 450 ° C, preferably from 200 to 350 ° C, and preferably under vacuum under a pressure of preferably 2 to 20 mbar

La sinterización tiene preferentemente lugar a una temperatura del 80 a 90% de la temperatura de fusión del metal o bien de la aleación de metales, y preferentemente bajo una atmósfera de gas protector. Es preferible que el gas protector sea argón. Como alternativa, la sinterización también puede realizarse bajo vacío. En este caso es preferible que la presión sea de 10^{-3} a 10^{-5} mbar.Sintering preferably takes place at a temperature of 80 to 90% of the melting temperature of the metal or of the metal alloy, and preferably under a protective gas atmosphere. It is preferable that the protective gas is argon. Alternatively, sintering can also be performed. under vacuum In this case it is preferable that the pressure be 10-3 to 10-5 mbar.

Las partes constructivas de válvulas huecas, producidas de esta manera, pueden unirse entre si de manera convencional mediante procedimientos de ensamble basados en la continuidad de las superficies de contacto y en la continuidad en la transmisión de las fuerzas, así como mediante procedimientos de ensamble de fusión líquida. Por ejemplo, es posible ensamblar platos de válvula con machos de válvula mediante una unión de retracción. Los machos de válvula pueden unirse a los vástagos o fustes de válvula mediante un procedimiento de ensamble por fusión líquida.The construction parts of hollow valves, produced in this way, they can join each other so conventional by assembly procedures based on the continuity of contact surfaces and continuity in the transmission of forces, as well as through procedures of liquid fusion assembly. For example, it is possible to assemble valve plates with valve males by means of a union of retraction. Valve males can be attached to the stems or valve shafts using a fusion assembly procedure liquid

Forma de realización preferidaPreferred Embodiment

Mediante el procedimiento arriba descrito se elaboró una aleación de titanio con 6% en peso de aluminio y 4% en peso de vanadio, de manera de obtener un plato de válvula y un macho de válvula. El macho de válvula y el plato de válvula se ensamblaron entre sí mediante una unión de retracción.Through the procedure described above, made a titanium alloy with 6% by weight of aluminum and 4% by weight vanadium weight, so as to obtain a valve plate and a male valve. The valve plug and the valve plate are assembled with each other by a retraction joint.

La Figura 1 muestra una representación del plato de válvula y del macho de válvula, ensamblados, en vista superior y en corte a lo largo de la línea A-A.Figure 1 shows a representation of the plate valve and valve plug, assembled, in top view and in cut along the line A-A.

La Figura 2 muestra una parte constructiva de válvula hueca conforme a la forma de realización preferida como parte constructiva entera (a la derecha) y recortada (a la izquierda).Figure 2 shows a constructive part of hollow valve according to the preferred embodiment as whole building part (right) and cropped (to the left).

Claims (22)

1. Procedimiento para la producción de una parte constructiva de válvula hueca para motores de combustión o turbinas, en el que:1. Procedure for the production of a part construction of hollow valve for combustion engines or turbines, in which: a).- en una máquina de amasar se mezclan metal en polvo y/o aleación de metales en polvo junto con un agente ligante y eventualmente un material de relleno;a) .- in a kneading machine mix metal powder and / or alloy of powdered metals together with an agent binder and possibly a filler material; b).- mediante colada por inyección se introduce la mezcla en un molde;b) .- by injection casting is introduced the mixture in a mold; c).- se desliga químicamente la masa moldeada;c) .- the dough chemically slips molded; d).- la masa, químicamente desligada, se desliga térmicamente a una temperatura inferior a 450ºC;d) .- the mass, chemically detached, slips thermally at a temperature below 450 ° C; e).- la masa, químicamente y térmicamente desligada, se sinteriza a una temperatura inferior a la temperatura de fusión del metal y/o de la aleación de metales, para la producción de la parte constructiva.e) .- mass, chemically and thermally detached, sintered at a temperature below the temperature of fusion of metal and / or alloy of metals, for the production of the constructive part. 2. Procedimiento conforme a la reivindicación 1, en el que la parte constructiva de válvula hueca es un macho de válvula.2. Method according to claim 1, in which the hollow valve construction part is a male of valve. 3. Procedimiento conforme a la reivindicación 1, en el que la parte constructiva de válvula hueca es un plato de válvula.3. Method according to claim 1, in which the hollow valve construction part is a plate of valve. 4. Procedimiento conforme a una de las reivindicaciones 1 a 3, caracterizado porque como aleación de metales en polvo se emplea una aleación de titanio.4. Method according to one of claims 1 to 3, characterized in that a titanium alloy is used as the powdered metal alloy. 5. Procedimiento conforme a la reivindicación 4, caracterizado porque la aleación de titanio contiene aluminio y/o vanadio como componentes adicionales.5. Method according to claim 4, characterized in that the titanium alloy contains aluminum and / or vanadium as additional components. 6. Procedimiento conforme a la reivindicación 5, caracterizado porque la aleación de titanio contiene 2 a 10% en peso de aluminio y/o 2 a 10% en peso de vanadio, referidos al peso total de la aleación.Method according to claim 5, characterized in that the titanium alloy contains 2 to 10% by weight of aluminum and / or 2 to 10% by weight of vanadium, based on the total weight of the alloy. 7. Procedimiento conforme a una de las reivindicaciones precedentes, caracterizado porque el agente ligante se elige del grupo consistente en: poliamidas, polioximetileno, policarbonato, estireno-acrilonitrilo copolimerizados, poliimida, ceras y aceites naturales, duroplastos, cianatos, polipropileno, poliacetato, polietileno, etileno-acetato de etileno, alcohol polivinílico, cloruro de polivinilo, poliestireno, polimetilmetacrilato, anilinas, aceites minerales, agua, agar, glicerina, polivinilbutirilo, polibutilmetacrilato, celulosa, ácido oleico, ftalatos, ceras de parafina, cera de carnauba, poliacrilato de amonio, estearato y oleato de diglicéridos, monoestearato de glicerilo, titanato de isopropilo, estearato de litio, monoglicéridos, formaldehido, fosfato de ácido octílico, sulfonatos de olefina, ésteres de fosfato, ácido esteárico, y mezclas de los mismos.Method according to one of the preceding claims, characterized in that the binding agent is selected from the group consisting of: polyamides, polyoxymethylene, polycarbonate, styrene-acrylonitrile copolymerized, polyimide, waxes and natural oils, duroplasts, cyanates, polypropylene, polyacetate, polyethylene , ethylene-ethylene acetate, polyvinyl alcohol, polyvinyl chloride, polystyrene, polymethylmethacrylate, anilines, mineral oils, water, agar, glycerin, polyvinylbutyryl, polybutyl methacrylate, cellulose, oleic acid, phthalates, paraffin waxes, carnauba wax, polyacrylate ammonium, diglyceride stearate and oleate, glyceryl monostearate, isopropyl titanate, lithium stearate, monoglycerides, formaldehyde, octyl acid phosphate, olefin sulphonates, phosphate esters, stearic acid, and mixtures thereof. 8. Procedimiento conforme a una de las reivindicaciones precedentes, caracterizado porque la proporción volumétrica del agente ligante en la mezcla es inferior a 60%.Method according to one of the preceding claims, characterized in that the volumetric proportion of the binding agent in the mixture is less than 60%. 9. Procedimiento conforme a la reivindicación 8, caracterizado porque la proporción volumétrica del agente ligante en la mezcla es de 20 a 50%.9. Method according to claim 8, characterized in that the volumetric proportion of the binding agent in the mixture is from 20 to 50%. 10. Procedimiento conforme a una de las reivindicaciones precedentes, caracterizado porque el mezclado en la máquina de amasar tiene lugar a una temperatura de 50 a 250ºC.Method according to one of the preceding claims, characterized in that mixing in the kneading machine takes place at a temperature of 50 to 250 ° C. 11. Procedimiento conforme a una de las reivindicaciones precedentes, caracterizado porque durante la colada de fusión la mezcla tiene una temperatura de 90 a 150ºC.Method according to one of the preceding claims, characterized in that during the melt casting the mixture has a temperature of 90 to 150 ° C. 12. Procedimiento conforme a una de las reivindicaciones precedentes, caracterizado porque la colada por inyección tiene lugar a una presión de 400 a 800 bar.12. Method according to one of the preceding claims, characterized in that the injection casting takes place at a pressure of 400 to 800 bar. 13. Procedimiento conforme a una de las reivindicaciones precedentes, caracterizado porque el desligado químico tiene lugar en un baño de hexano.13. Method according to one of the preceding claims, characterized in that the chemical stripping takes place in a hexane bath. 14. Procedimiento conforme a una de las reivindicaciones precedentes, caracterizado porque el desligado químico tiene lugar a una temperatura de 10 a 65ºC.14. Method according to one of the preceding claims, characterized in that the chemical stripping takes place at a temperature of 10 to 65 ° C. 15. Procedimiento conforme la reivindicación 14, caracterizado porque el desligado químico tiene lugar a una temperatura de 30 a 50ºC.15. Method according to claim 14, characterized in that the chemical stripping takes place at a temperature of 30 to 50 ° C. 16. Procedimiento conforme a una de las reivindicaciones precedentes, caracterizado porque el desligado térmico tiene lugar bajo una presión de 2 a 20 mbar.16. Method according to one of the preceding claims, characterized in that the thermal stripping takes place under a pressure of 2 to 20 mbar. 17. Procedimiento conforme a una de las reivindicaciones precedentes, caracterizado porque la sinterización tiene lugar a una temperatura del 80 a 90% de la temperatura de fusión del metal o bien de la aleación de metales.17. Method according to one of the preceding claims, characterized in that the sintering takes place at a temperature of 80 to 90% of the melting temperature of the metal or of the metal alloy. 18. Procedimiento conforme a una de las reivindicaciones precedentes, caracterizado porque la sinterización tiene lugar bajo una atmósfera de gas protector.18. Method according to one of the preceding claims, characterized in that the sintering takes place under a protective gas atmosphere. 19. Procedimiento conforme a la reivindicación 18, caracterizado porque el gas protector es argón.19. Method according to claim 18, characterized in that the protective gas is argon. 20. Procedimiento conforme a una de las reivindicaciones 1 a 17, caracterizado porque la sinterización se realiza bajo vacío.20. Method according to one of claims 1 to 17, characterized in that the sintering is performed under vacuum. 21. Parte constructiva de válvula hueca, producido mediante un procedimiento conforme a una de las reivindicaciones 1 a 20, caracterizado porque consiste en una aleación basada en titanio.21. Hollow valve construction part, produced by a method according to one of claims 1 to 20, characterized in that it consists of a titanium-based alloy. 22. Parte constructiva de válvula hueca conforme a la reivindicación 21, caracterizado porque además de titanio la aleación basada en titanio contiene 2 a 10% en peso de aluminio y/o 2 a 10% en peso de vanadio.22. Hollow valve construction part according to claim 21, characterized in that in addition to titanium, the titanium-based alloy contains 2 to 10% by weight of aluminum and / or 2 to 10% by weight of vanadium.
ES07118021T 2006-10-20 2007-10-08 PROCEDURE FOR THE PRODUCTION OF A CONSTRUCTION PART OF HOLLOW VALVE FOR COMBUSTION ENGINES OR TURBINES, AND CONSTRUCTION PART OF HOLLOW VALVE PRODUCED ACCORDING TO THE SAME. Active ES2337302T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006049844A DE102006049844A1 (en) 2006-10-20 2006-10-20 Process for the production of components for internal combustion engines or turbines
DE102006049844 2006-10-20

Publications (1)

Publication Number Publication Date
ES2337302T3 true ES2337302T3 (en) 2010-04-22

Family

ID=38657272

Family Applications (1)

Application Number Title Priority Date Filing Date
ES07118021T Active ES2337302T3 (en) 2006-10-20 2007-10-08 PROCEDURE FOR THE PRODUCTION OF A CONSTRUCTION PART OF HOLLOW VALVE FOR COMBUSTION ENGINES OR TURBINES, AND CONSTRUCTION PART OF HOLLOW VALVE PRODUCED ACCORDING TO THE SAME.

Country Status (8)

Country Link
US (1) US20080092383A1 (en)
EP (1) EP1925682B1 (en)
JP (1) JP2008180211A (en)
CN (1) CN101413410B (en)
AT (1) ATE457039T1 (en)
DE (2) DE102006049844A1 (en)
ES (1) ES2337302T3 (en)
PT (1) PT1925682E (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2738003T3 (en) * 2004-10-15 2020-01-17 Taisei Kogyo Co Ltd Production process of porous sinter, porous sinter and porous sinter molding material
PT2468436E (en) * 2010-12-16 2013-07-10 Helmholtz Zentrum Geesthacht Method for manufacturing metal casings with structured surfaces
CA2865325C (en) 2012-02-24 2021-03-02 Hoeganaes Corporation Improved lubricant system for use in powder metallurgy
CN104117677B (en) * 2013-04-23 2017-02-08 昆山广兴电子有限公司 Manufacturing method of metal fan wheel
CN103240418B (en) * 2013-05-23 2014-12-24 北京科技大学 Near-net shaping method for charging turbine with hollow internal structure
FR3037514B1 (en) * 2015-06-16 2019-08-09 Safran Aircraft Engines METHOD FOR MANUFACTURING A THREE-DIMENSIONAL PIECE FRYED FROM A POWDER AND INSTALLATION FOR CARRYING OUT SAID METHOD
CN105624452B (en) * 2016-01-05 2018-04-24 南方科技大学 Method for preparing porous intermetallic compound
ITUA20163944A1 (en) 2016-05-30 2017-11-30 Nuovo Pignone Tecnologie Srl Process for making a component of a turbomachine, to a component obtainable consequently and turbomachine comprising the same / Process for obtaining a turbomachinery component, a component obtainable from it and a turbomachine which comprises it
US11305346B2 (en) * 2017-04-27 2022-04-19 Federal-Mogul Valvetrain Gmbh Poppet valve and method of its manufacture
ES2776887T3 (en) 2018-02-12 2020-08-03 Helmholtz Zentrum Geesthacht Method of producing a metal implant
CN109108267B (en) * 2018-08-03 2019-12-20 深圳市富荣新材料科技有限公司 Composition, preparation method and application in field of metal injection molding material
CN109897980B (en) * 2019-02-22 2020-07-21 北京科技大学 Powder injection molding method of titanium or titanium alloy powder and titanium or titanium alloy product
CN113399667B (en) * 2021-06-11 2022-08-16 深圳市泛海统联精密制造股份有限公司 Titanium alloy metal powder injection molding feed and preparation method thereof
CN114472879B (en) * 2021-12-20 2023-04-25 中南大学 A kind of binder for pure titanium powder injection molding and its preparation method and application

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3120501C2 (en) * 1981-05-22 1983-02-10 MTU Motoren- und Turbinen-Union München GmbH, 8000 München "Process and device for the production of molded parts"
JPH02274382A (en) * 1989-04-12 1990-11-08 Nippon Steel Corp Hard facing method by welding for engine valve
US6351258B1 (en) * 1997-06-30 2002-02-26 Sony Corporation Switcher system and I/O switching method
DE19804053A1 (en) * 1998-02-03 1999-08-05 Mwp Mahle J Wizemann Pleuco Gm Lightweight valve
DE10336701B4 (en) * 2003-08-09 2006-12-21 Mtu Aero Engines Gmbh Process for the production of components
DE102004053874A1 (en) * 2004-11-04 2006-05-11 Gkss-Forschungszentrum Geesthacht Gmbh Method for producing products from a metallic composite material
EP1926929B1 (en) * 2005-09-20 2009-02-25 Veritas Ag Valve device

Also Published As

Publication number Publication date
CN101413410B (en) 2012-06-27
CN101413410A (en) 2009-04-22
US20080092383A1 (en) 2008-04-24
PT1925682E (en) 2010-05-10
DE102006049844A1 (en) 2008-04-24
EP1925682B1 (en) 2010-02-03
ATE457039T1 (en) 2010-02-15
JP2008180211A (en) 2008-08-07
DE502007002782D1 (en) 2010-03-25
EP1925682A1 (en) 2008-05-28

Similar Documents

Publication Publication Date Title
US20080092383A1 (en) Process for the production of components for combustion engines or turbines
US9975176B2 (en) Method and assembly for forming components having internal passages using a lattice structure
US8257038B2 (en) Metal injection joining
CN102472224B (en) Fuel injection nozzle for internal combustion engine, nozzle blank and manufacturing method thereof
CN106513685A (en) Powder near-molten state hot isostatic pressing net forming method
SG158069A1 (en) Method of making metallic composite foam components
EP3181266B1 (en) Method and assembly for forming components having internal passages using a lattice structure
EP2434125A1 (en) Method for producing impeller applied to supercharger
CA2762461A1 (en) Process for producing shaped metal bodies having a structured surface
US10137499B2 (en) Method and assembly for forming components having an internal passage defined therein
US10046389B2 (en) Method and assembly for forming components having internal passages using a jacketed core
CN110573279B (en) Poppet valve and method of making the same
EP2992579A1 (en) Method for manufacturing an ignition electrode
EP3238860A1 (en) Method and assembly for forming components using a jacketed core
US9377163B2 (en) Method of manufacturing a hydrogen storage device
CN107309403A (en) For the method and component using chuck core formation part
JP2009293418A (en) Nozzle vane manufacturing method, nozzle vane, variable nozzle mechanism, and turbocharger
JP2009287486A (en) Piston of internal combustion engine
US10150158B2 (en) Method and assembly for forming components having internal passages using a jacketed core
JPS5815743A (en) Piston and its manufacture for internal-combustion engine
JP6678038B2 (en) Heat-resistant sintered material having excellent oxidation resistance, high-temperature wear resistance, and salt damage resistance, and a method for producing the same
JP4983822B2 (en) Method for producing hollow casting and method for producing hollow forming member used therein
KR20250072065A (en) Ceramic Core For Turbine Blade Manufacturing And Turbine Blade Manufacturing Method Using The Same
Baril et al. Powder injection molding (PIM) for low cost manufacturing of intricate parts to net-shape
CN115196606A (en) Preparation method and equipment of high-performance titanium carbonitride