EP0701875A1 - Procédé de préparation d'articles métalliques par moulage par injection - Google Patents

Procédé de préparation d'articles métalliques par moulage par injection Download PDF

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Publication number
EP0701875A1
EP0701875A1 EP95113801A EP95113801A EP0701875A1 EP 0701875 A1 EP0701875 A1 EP 0701875A1 EP 95113801 A EP95113801 A EP 95113801A EP 95113801 A EP95113801 A EP 95113801A EP 0701875 A1 EP0701875 A1 EP 0701875A1
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EP
European Patent Office
Prior art keywords
molded part
base
injection molding
sintering
binder
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
Application number
EP95113801A
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German (de)
English (en)
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EP0701875B1 (fr
Inventor
Hans-Josef Dr. Sterzel
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.)
BASF SE
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BASF SE
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Filing date
Publication date
Application filed by BASF SE filed Critical BASF SE
Publication of EP0701875A1 publication Critical patent/EP0701875A1/fr
Application granted granted Critical
Publication of EP0701875B1 publication Critical patent/EP0701875B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B22F3/10—Sintering only
    • 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
    • B22F3/12—Both compacting and sintering
    • B22F3/1208—Containers or coating used therefor
    • B22F3/1258—Container manufacturing
    • B22F3/1283—Container formed as an undeformable model eliminated after consolidation
    • 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
    • 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
    • B22F3/10—Sintering only
    • B22F2003/1042—Sintering only with support for articles to be sintered
    • 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

Definitions

  • the present invention relates to an improved process for the production of metallic molded parts by processing an injection molding compound, wherein a.) The injection molding compound is processed into the molded part and b.) A part of the binder contained in the molded part is removed and c.) The molded part obtained in this way is sintered.
  • EP-A 413 231 describes a process for producing inorganic sintered moldings.
  • a deformable mass in the form of granules is produced from the sinterable powder and polyoxymethylene as a binder.
  • So-called green bodies are then produced from these deformable materials by injection molding.
  • the granulate is melted in injection molding machines and the melt is injected into the appropriate molds, where it cools down while the temperature drops and solidifies by falling below the glass softening temperature and / or the crystalline melting point of the binder and then is removed from the mold (page 1, line 38 to page 2 , Line 2).
  • the green bodies obtained in this way are freed of most of the binder in the subsequent debinding step, whereby acid-catalytic debinding has the advantage of preventing the risk of cracking by gently removing the binder (page 2, lines 3 to 32).
  • the porous parts obtained in this way are then sintered at temperatures of approximately 1100 to 1500 ° C., small amounts of residual binder possibly still escaping (page 2, lines 33 to 34).
  • the method is generally very well suited for the production of inorganic sintered molded parts, however, in the case of large parts, which may have complicated shapes and / or small wall thicknesses, undesired deformations can occur during sintering.
  • the sintering process requires high temperatures in order to set the desired structure in the molded body. The temperatures are usually around 1100 to 1500 ° C. At these high temperatures, however, a certain softening of the molded body to be sintered cannot be excluded. This can be undesirable, for example, in the case of cutlery items which are only incompletely supported on flat documents during the sintering process Deformations result, since the shaped body already experiences a considerable load due to its own weight.
  • DE-C 4124393 discloses cutlery parts which are produced by powder metallurgical injection molding.
  • a process is described in which the shaped bodies are produced essentially by the process steps of injection molding, removal of the binder and subsequent sintering of the shaped body (column 2, lines 58 to 64).
  • the disadvantage there is the disadvantage that undesired deformation can occur during the sintering of the cutlery parts which have been produced by powder-metallurgical injection molding.
  • the invention further relates to the molded parts obtainable by the method.
  • the documents used in the method according to the invention ensure good dimensional stability of the molded part during the sintering process.
  • Particularly suitable are documents which advantageously have approximately the contour of the finished molded part, have a higher creep resistance than the molded parts or do not crawl measurably in the sintering temperature range under the influence of the contact forces.
  • the base can preferably be produced directly using the mold for the metallic molded part. This is the case, for example, with the spoon base.
  • injection molding to create a base by injection molding, which will later serve as a base for the metallic moldings.
  • the dimension of the finished sintered base can advantageously be set somewhat larger than the later molded part, so that the base has an excellent fit for the molded parts. It is advisable to dimension the base approximately 1 to 20% larger than the molded part, particularly preferably 2 to 10%.
  • the measures necessary to set the dimension are known to the person skilled in the art.
  • the shrinkage of the shaped body depends on the composition of the starting materials and can be varied accordingly. Furthermore, the shrinkage can be influenced by the sintering temperature, with increasing the sintering temperature a stronger shrinkage of the molded part is observed.
  • a granulate is produced from sinterable metal powder, flowable binder and any auxiliary materials that may be added.
  • Numerous substances are known as flowable binders. It is essential that they deliver as little residual carbon as possible when the temperature rises. Examples include polyoxymethylene, polystyrene, polymethyl methacrylate, polypropylene, polyethylene, ethylene-vinyl acetate copolymers and mixtures thereof.
  • polyoxymethylene homo- or copolymers are known per se to the person skilled in the art and are described in the literature.
  • the homopolymers are generally prepared by polymerizing formaldehyde or trioxane, preferably in the presence of suitable catalysts.
  • Polyoxymethylene copolymers preferred in the context of the invention contain, in addition to the repeating units -OCH2-, up to 50, preferably 0.1-20 and in particular 0.3-10 mol% of repeating units.
  • R1 to R4 independently of one another are a hydrogen atom, a C1-C4 alkyl group or a halogen-substituted alkyl group having 1-4 C atoms and R5 is a -CH2-, -CH2O-, one by C1-C4-alkyl or C1-C4- Haloalkyl substituted methylene group or a corresponding oxymethylene group and n has a value in the range of 0-3.
  • cyclic ethers are those of the formula where R1-R5 and n have the meaning given above. Only examples include ethylene oxide, 1,2-propylene oxide, 1,2-butylene oxide, 1,3-butylene oxide, 1,3-dioxane, 1,3-dioxolane and dioxepane as cyclic ethers and linear oligoformals as comonomers.
  • Preferred monomers of this type are ethylene diglycide, diglycidyl ether and diether from glycidylene and formaldehyde, dioxane or trioxane in a molar ratio of 2: 1 and diether from 2 mol of glycidyl compound and 1 mol of an aliphatic diol with 2-8 C atoms, such as the diglyidyl ether of ethylene glycol, 1 , 4-butanediol, 1,3-butanediol, cyclobutane-1,3-diol, 1,2-propanediol and cyclohexane-1,4-diol to name just a few examples.
  • poly-1,3-oxiolane and poly-1,3-dioxepane as described, for example, in EP-A-44 475 are also suitable.
  • Processes for the preparation of the homopolymers and copolymers described above are known to the person skilled in the art and are described in the literature, so that further details are unnecessary here.
  • the preferred polyoxymethylene homopolymers or copolymers have melting points of at least 150 ° C. and molecular weights (weight average) in the range from 5000 to 15000, preferably from 7000 to 60,000.
  • metals that can be contained in powder form only examples include iron, cobalt, nickel and silicon; Alloys are e.g. iron-based alloys such as low and high alloy steels, light metal alloys based on aluminum and titanium as well as alloys with copper or bronze. Finally, hard metals such as tungsten carbide, boron carbide or titanium nitride can also be used in combination with metals such as cobalt and nickel. The latter can be used in the production of metal-bound hard cutting tools (so-called cermets).
  • Flow improvers, stabilizers or mold release agents are used as auxiliaries.
  • a so-called green body is produced from the granulate in a known manner by injection molding.
  • the granules are melted in injection molding machines at temperatures of about 120 to 220 ° C, preferably 170 to 200 ° C, and the melt is injected into the appropriate mold, where it cools down while the temperature drops and solidifies by falling below the glass softening temperature and / or the crystalline melting point of the binder and then removed from the mold.
  • the green bodies obtained in this way are freed from a large part of the binder contained in the subsequent debinding step at temperatures of approximately 90 to 600 ° C.
  • Debinding in the presence of an acid can also be recommended here, as a result of which lower temperatures are possible during debinding when the binder is acid-catalytically cleaved.
  • Suitable acids are, for example, nitric acid, oxalic acid or boron trifluoride, the temperatures during the debinding are usually around 110 to 150 ° C.
  • the remaining residues of the binder ensure good strength of the molded body even at the beginning of the sintering process before solidification begins by sintering on the metal particle.
  • polyethylene, polypropylene, polystyrene, polymethyl methacrylate or polyvinylpyrrolidone are suitable as permanent binders.
  • the proportions of the permanent binder are preferably about 0.5 to 20% by weight, particularly preferably 2 to 10% by weight, based on the total amount of binder used.
  • the molded part is heated to a great extent, as a result of which the structure is changed in the desired manner and any residues of binder which are still present can be driven off.
  • the molded part to be sintered is placed on a base which stabilizes the contours of the molded part.
  • the temperatures during the sintering process are usually about 600 to 1600 ° C, preferably 800 to 1400 ° C, the duration usually extends from about 0.5 to 10, preferably 1 to 2 hours without heating and cooling times.
  • the base should preferably be such that the molded part to be sintered not only rests at a few points, but is in contact with the base over a large area, so that good stabilization is ensured during sintering. It should be noted here that the base itself has sufficient creep stability even at the sintering temperatures.
  • the method according to the invention is particularly suitable for producing thin-walled or large or complex-shaped components which, without such a support, tend to deform due to their own weight as soon as the creep resistance of the material is reduced. It thus opens up the possibility of also producing those molded parts by powder injection molding which were not previously accessible to this process because of the undesired deformation. In addition to the molded parts already listed, this is generally relevant where high dimensional accuracy is required.
  • the method according to the invention can usually be used to achieve a dimensional accuracy in the finished molded parts which does not exceed about 0.5%, in special cases 0.3%, based on the predetermined value.
  • cutlery items such as knives, forks, spoons as well as molded items with protruding parts that would otherwise bend slightly under their own weight.
  • the method according to the invention offers a simple possibility of producing molded parts economically and inexpensively, it being possible to achieve high dimensional accuracy even of complexly shaped components with an overall high level of properties.
  • the process can advantageously be integrated into existing injection molding processes for the production of metallic molded parts without great effort.
  • An injection molding machine was equipped with a mold for a spoon.
  • the sintered spoon is characterized by the dimensions total length 204 mm, handle length 140 mm, spoon width 44 mm, curvature of the spoon 9 mm, curvature of the handle when resting on a flat surface 12 mm, with wall thicknesses of 1 mm on the spoon part and 3 mm on the handle. Due to the expected linear sintering shrinkage of 14.5% the shape is 14.5% larger than the sintered spoon in all dimensions.
  • the injection molding compound was melted at a melt temperature of 190 ° C. and injected into the mold heated to 110 ° C. After a cooling time of approx. 20 seconds, the green parts were removed from the mold.
  • a mass was injected into the same mold to produce the sintered base, which consisted of 56% by volume of aluminum oxide powder with an average grain size of around 1.2 ⁇ m and 44% by volume of a binder which was 88% by weight.
  • the green powder containing spoon was debindered in a nitrogen atmosphere, which contained about 1.5% concentrated nitric acid, at a temperature of 120 ° C. within 1 h.
  • the sintered base was debinded in the same device in a nitrogen atmosphere, which also contained about 1.5% concentrated nitric acid, at a temperature of 130 ° C. within 2.5 h.
  • the debindered sintered substrate was then heated in air at a rate of 3 ° C./min to 1.540 ° C., held at 1.540 ° C. for 2 hours and then cooled at 5 ° C./min.
  • the dimensions of the non-densely sintered sintered base thus obtained are 4% larger than those of the fully sintered metal spoon.
  • the spooned green part containing the unbound metal powder was placed on the sintering base and heated in a sintering furnace equipped with molybdenum heating rods under hydrogen, which had a dew point of less than -80 ° C, at a speed of 5 ° C / min to 1,300 ° C, 120 min at 1,300 ° C sintered and the sintering furnace then cooled.
  • the product obtained was an exact spoon.
  • the green parts obtained according to Example 1 were freed of the binder component by moving the parts at a speed of 1 ° C / min from 160 ° C to 210 ° C, at 0.5 ° C / min from 210 ° C to 250 ° C and were heated from 250 ° C to 600 ° C at 2 ° C without placing the parts on the sintered base in the shape of a spoon. After opening the debinding oven, it was found that the spherical Parts of the spoon and the handle had been placed under the influence of gravity and the arches partially collapsed.
  • the green parts were placed on conventional flat aluminum oxide supports and then heated in the sintering furnace under hydrogen as in the previous example at a rate of 5 ° C./min to 1,300 ° C. and kept at 1,300 ° C. for a further 120 minutes. The furnace was then cooled and opened. The curved contours of the spoons had flattened even further.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Materials For Medical Uses (AREA)
EP95113801A 1994-09-15 1995-09-02 Procédé de préparation d'articles métalliques par moulage par injection Expired - Lifetime EP0701875B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4432797 1994-09-15
DE4432797 1994-09-15

Publications (2)

Publication Number Publication Date
EP0701875A1 true EP0701875A1 (fr) 1996-03-20
EP0701875B1 EP0701875B1 (fr) 2000-06-07

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EP95113801A Expired - Lifetime EP0701875B1 (fr) 1994-09-15 1995-09-02 Procédé de préparation d'articles métalliques par moulage par injection

Country Status (5)

Country Link
US (1) US5737683A (fr)
EP (1) EP0701875B1 (fr)
JP (1) JPH0881701A (fr)
DE (1) DE59508447D1 (fr)
ES (1) ES2146686T3 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19925197C2 (de) * 1998-06-01 2001-07-12 Mold Res Co Spritzgußfähige Metallpulverzusammensetzung und Spritzguß- und Sinterverfahren unter Verwendung einer derartigen Zusammensetzung
EP0868890A3 (fr) * 1997-04-04 2001-11-14 Injex Corporation Modèle de moignon dentaire et procédé de fabrication d'une prothèse sur ce modèle
DE102004016333A1 (de) * 2004-04-02 2005-10-27 Webasto Ag Heizgeräte-Brenner mit einer Prallscheibe
WO2007005480A1 (fr) * 2005-06-30 2007-01-11 Honeywell International Inc. Outils de frittage evolues destines au moulage par injection de metal de grandes pieces
WO2005030415A3 (fr) * 2003-09-22 2009-04-16 Mtu Aero Engines Gmbh Procede de production de composants, et dispositif de support correspondant
WO2015185468A1 (fr) * 2014-06-02 2015-12-10 Basf Se Procédé de production de moulages frittés
DE102015210770A1 (de) * 2015-06-12 2016-12-15 Rolls-Royce Deutschland Ltd & Co Kg Bauteilkonstruktion, Bauteil für eine Gasturbine und Verfahren zur Herstellung eines Bauteils einer Gasturbine durch Metallpulverspritzgießen
US9556072B2 (en) 2009-06-25 2017-01-31 Basf Se Process for the continuous thermal removal of binder from a metallic and/or ceramic shaped body produced by injection molding, extrusion or pressing using a thermoplastic molding composition
CN107398559A (zh) * 2017-08-10 2017-11-28 攀枝花学院 一种搭配支撑的大型零部件粉末注射成型方法
CN111136275A (zh) * 2020-01-20 2020-05-12 江苏精研科技股份有限公司 一种注射成形制备大面积薄壁件的方法

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DE69941420D1 (de) * 1998-11-17 2009-10-29 Hitachi Metals Ltd Verfahren zur Herstellung und Behandlung von magnetischen gepressten Grünlingen
SE514558C2 (sv) * 1999-07-02 2001-03-12 Seco Tools Ab Metod och anordning för att tillverka ett verktyg
US6315935B1 (en) 1999-08-26 2001-11-13 Alliedsignal Inc. Low pressure injection molding of knife blades from metal feedstocks
US6676895B2 (en) 2000-06-05 2004-01-13 Michael L. Kuhns Method of manufacturing an object, such as a form tool for forming threaded fasteners
US6537487B1 (en) 2000-06-05 2003-03-25 Michael L. Kuhns Method of manufacturing form tools for forming threaded fasteners
CA2447688A1 (fr) * 2001-05-14 2003-02-13 Polymer Technologies, Inc. Procede et outils de frittage concus pour le moulage par injection de poudres metalliques de composants de grandes dimensions
US6838046B2 (en) * 2001-05-14 2005-01-04 Honeywell International Inc. Sintering process and tools for use in metal injection molding of large parts
US20050227772A1 (en) * 2004-04-13 2005-10-13 Edward Kletecka Powdered metal multi-lobular tooling and method of fabrication
DE102008059191A1 (de) * 2008-11-27 2010-06-02 Schaeffler Kg Spanneinheit für eine Zugmittelspannvorrichtung
US20100178194A1 (en) * 2009-01-12 2010-07-15 Accellent, Inc. Powder extrusion of shaped sections
FR2944721B1 (fr) * 2009-04-24 2014-03-07 Snecma Procede de fabrication d'un aubage par moulage par injection de poudre metallique
AT509613B1 (de) * 2010-04-01 2017-05-15 Univ Wien Tech Verfahren zur herstellung von formköpern aus aluminiumlegierungen
CN102554234A (zh) * 2012-02-28 2012-07-11 惠州Tcl移动通信有限公司 一种金属注塑成型结构件的加工方法及其支撑治具
FR3037831B1 (fr) * 2015-06-26 2019-08-16 Alliance Fabrication d'un secteur courbe d'anneau de turbine par moulage et frittage
JP6745631B2 (ja) 2016-04-05 2020-08-26 三菱重工航空エンジン株式会社 焼結体の製造方法及び燃焼器パネルの製造方法
US20190015709A1 (en) * 2017-07-12 2019-01-17 Changchun Chen Golf head and manufacturing method thereof
US20220072613A1 (en) * 2018-12-16 2022-03-10 Tritone Technologies Ltd. Supports for components during debinding and sintering
CN111250710B (zh) * 2020-03-11 2022-12-09 东莞华晶粉末冶金有限公司 一种防烧结变形的中空结构差速器外壳加工方法
JP2024504141A (ja) 2021-01-20 2024-01-30 ビーエーエスエフ ソシエタス・ヨーロピア 低密度で良好な機械的特性を有する金属部品を製造するための材料及び方法
WO2022200170A1 (fr) 2021-03-22 2022-09-29 Basf Se Charge d'alimentation mim et procédé de fabrication de pièces métalliques présentant une limite d'élasticité et une ductilité améliorées
CN116493591A (zh) * 2023-03-09 2023-07-28 美轲(广州)新材料股份有限公司 一种双金属组件高尔夫球头金属注射成型一次性烧结制备工艺

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EP0451467A1 (fr) * 1990-03-14 1991-10-16 Asea Brown Boveri Ag Méthode de frittage utilisant un moule déformable en céramique
EP0524710A2 (fr) * 1991-07-23 1993-01-27 Wmf Württembergische Metallwarenfabrik Ag Ustensile de table en métal
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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0868890A3 (fr) * 1997-04-04 2001-11-14 Injex Corporation Modèle de moignon dentaire et procédé de fabrication d'une prothèse sur ce modèle
DE19925197C2 (de) * 1998-06-01 2001-07-12 Mold Res Co Spritzgußfähige Metallpulverzusammensetzung und Spritzguß- und Sinterverfahren unter Verwendung einer derartigen Zusammensetzung
WO2005030415A3 (fr) * 2003-09-22 2009-04-16 Mtu Aero Engines Gmbh Procede de production de composants, et dispositif de support correspondant
DE102004016333A1 (de) * 2004-04-02 2005-10-27 Webasto Ag Heizgeräte-Brenner mit einer Prallscheibe
DE102004016333B4 (de) * 2004-04-02 2006-08-31 Webasto Ag Heizgeräte-Brenner mit einer Prallscheibe
WO2007005480A1 (fr) * 2005-06-30 2007-01-11 Honeywell International Inc. Outils de frittage evolues destines au moulage par injection de metal de grandes pieces
US7413702B2 (en) 2005-06-30 2008-08-19 Honeywell International Inc. Advanced sintering process and tools for use in metal injection molding of large parts
US9556072B2 (en) 2009-06-25 2017-01-31 Basf Se Process for the continuous thermal removal of binder from a metallic and/or ceramic shaped body produced by injection molding, extrusion or pressing using a thermoplastic molding composition
CN106660119B (zh) * 2014-06-02 2019-02-05 巴斯夫欧洲公司 生产烧结模制品的方法
CN106660119A (zh) * 2014-06-02 2017-05-10 巴斯夫欧洲公司 生产烧结模制品的方法
WO2015185468A1 (fr) * 2014-06-02 2015-12-10 Basf Se Procédé de production de moulages frittés
US10456834B2 (en) 2014-06-02 2019-10-29 Basf Se Process for the production of sintered moldings
DE102015210770A1 (de) * 2015-06-12 2016-12-15 Rolls-Royce Deutschland Ltd & Co Kg Bauteilkonstruktion, Bauteil für eine Gasturbine und Verfahren zur Herstellung eines Bauteils einer Gasturbine durch Metallpulverspritzgießen
US10619515B2 (en) 2015-06-12 2020-04-14 Rolls-Royce Deutschland Ltd & Co Kg Component construction, component for a gas turbine and method for manufacturing a component of gas turbine by metal injection moulding
CN107398559A (zh) * 2017-08-10 2017-11-28 攀枝花学院 一种搭配支撑的大型零部件粉末注射成型方法
CN111136275A (zh) * 2020-01-20 2020-05-12 江苏精研科技股份有限公司 一种注射成形制备大面积薄壁件的方法

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US5737683A (en) 1998-04-07
ES2146686T3 (es) 2000-08-16
JPH0881701A (ja) 1996-03-26
DE59508447D1 (de) 2000-07-13

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