WO2011087098A1 - Procédé de frittage - Google Patents

Procédé de frittage Download PDF

Info

Publication number
WO2011087098A1
WO2011087098A1 PCT/JP2011/050569 JP2011050569W WO2011087098A1 WO 2011087098 A1 WO2011087098 A1 WO 2011087098A1 JP 2011050569 W JP2011050569 W JP 2011050569W WO 2011087098 A1 WO2011087098 A1 WO 2011087098A1
Authority
WO
WIPO (PCT)
Prior art keywords
mold
core
sintering
powder
injection molding
Prior art date
Application number
PCT/JP2011/050569
Other languages
English (en)
Japanese (ja)
Inventor
彰 米谷
中川　勝則
遵 浅川
丈二 山岡
清水　勉
千里 清水
清水　徹
Original Assignee
株式会社Ihi
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 株式会社Ihi filed Critical 株式会社Ihi
Publication of WO2011087098A1 publication Critical patent/WO2011087098A1/fr

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
    • B28B7/342—Moulds, cores, or mandrels of special material, e.g. destructible materials which are at least partially destroyed, e.g. broken, molten, before demoulding; Moulding surfaces or spaces shaped by, or in, the ground, or sand or soil, whether bound or not; Cores consisting at least mainly of sand or soil, whether bound or not
    • 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
    • B22F3/24—After-treatment of workpieces or articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/24—Producing shaped prefabricated articles from the material by injection moulding
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/634—Polymers
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • 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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/602—Making the green bodies or pre-forms by moulding
    • C04B2235/6022—Injection moulding
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6562—Heating rate
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/963—Surface properties, e.g. surface roughness

Definitions

  • the present invention relates to a sintering method by a powder injection molding method such as metal powder injection molding (MIM) or ceramic powder injection molding (CIM).
  • a powder injection molding method such as metal powder injection molding (MIM) or ceramic powder injection molding (CIM).
  • MIM metal powder injection molding
  • CCM Ceramic powder injection molding
  • an injection-molded mold is basically a fixed metal. Metal molds can be precisely processed, and MIM and CIM are suitable for precise molding of complex shapes.
  • a problem arises when trying to manufacture an article having a cavity or a through hole inside. A core is required to form a cavity or a through-hole, but the core must be pulled out before sintering or crushed and removed after sintering. Since the green body is merely an aggregate of powder and binder, the number of cases where the core can be pulled out without affecting its shape is limited.
  • the core Even if the core is to be crushed after sintering, the core should be strong enough to withstand the injection pressure, so it is difficult to crush and remove it. Therefore, when it is going to manufacture the product which has a cavity and a through-hole by MIM or CIM, the process by a drill etc. is additionally required.
  • the shape that can be produced for the convenience of processing is remarkably restricted, and furthermore, the finish of the inner surface (surface roughness) is problematic, and of course the productivity is also reduced.
  • the first composition containing the first thermoplastic resin powder is kneaded, the kneaded first composition is injection-molded to become a core, and the core Assembling the mold into the outer mold, the mold is assembled, and the second composition containing any powder selected from the group consisting of metals and ceramics and the powder of the second powder injection molding binder is kneaded and kneaded. Injection of the prepared second composition into the mold to obtain a green body, and sintering the green body with the core incorporated therein.
  • FIG. 1 is a flowchart illustrating the steps of a sintering method by powder injection molding using a core according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of an example of a sintered body suitable for the sintering method.
  • FIG. 3 is a cross-sectional view of an example of a mold including a core adapted to sinter the sintered body.
  • FIG. 4 is a cross-sectional view of an example of a mold for injection molding the core.
  • FIG. 5 is a plan view of the green body taken out of the mold together with the core.
  • FIG. 2 shows a pipe joint 1 which is an example of a sintered body, and has a through hole 3 for allowing a fluid to flow inside.
  • the green body from which the shape of the pipe joint 1 should be obtained after sintering needs to be formed by injection molding.
  • a mold 10 for injection molding is manufactured.
  • FIG. 3 shows an example of the mold 10. Since the volume shrinkage of about 20% occurs in the process of the green body being sintered to become a sintered body, the mold 10 is designed in consideration of the volume shrinkage.
  • the mold 10 includes outer molds 11, 13, 15 and a core 20.
  • the outer mold can be divided into a plurality of appropriate parts so that the green body can be taken out after injection molding.
  • the outer mold includes a first mold 11, a second mold 13, and a nest 15.
  • the first mold 11 can be further divided in the front-rear direction with respect to the paper surface.
  • the first mold 11 and the second mold 13 may be provided with appropriate positioning means such as a pair of protrusions and engagement holes in order to enable accurate positioning of each other.
  • the first mold 11 includes a runner 17 and enables introduction of a mixture of a metal or ceramic powder and a binder.
  • a space surrounded by the outer molds 11, 13, 15 and the core 20 is a space 19 to be a green body mold except for the runner 17.
  • thermoplastic resin examples include styrene-based, acrylic-based, cellulose-based, polyethylene-based, vinyl-based, nylon-based, and fluorocarbon-based resins.
  • the acrylic resin has strength enough to withstand the injection pressure, has an appropriate viscosity during kneading, and has good melting, decomposition, and evaporation in the sintering process.
  • thermoplastic resin is advantageous in terms of shape stability of the green body, but a lower mixing ratio is advantageous in terms of fluidity in the kneading and sintering processes. Therefore, the mixing ratio of the thermoplastic resin is preferably 50% by weight or more and less than 100% by weight, more preferably 70% by weight or more and less than 90% by weight.
  • the additive can be appropriately selected for various purposes such as the purpose of adjusting the viscosity and fluidity and the purpose of adjusting the shape stability of the composition.
  • examples of the additive include polyoxymethylene, polypropylene, an appropriate organic compound, and a binder for powder injection molding.
  • polyoxymethylene increases the strength of the composition
  • the addition of polyoxymethylene is advantageous in terms of increasing the shape stability of the core.
  • the green body is softened and shrunk at the initial stage of sintering.
  • polyoxymethylene having a Vicat softening point of 150 ° C. or more is advantageous in that it can easily prevent the green body from being deformed in the process of softening and shrinking.
  • Polyoxymethylene has good decomposition and evaporation in the sintering process, and does not leave a residue in the sintered body.
  • polypropylene increases the toughness of the composition, it is advantageous to add it to prevent breakage of the core.
  • those having a Vicat softening point of 130 ° C. or more are advantageous in that the green body can be easily prevented from being deformed in the process of softening and shrinking.
  • Polypropylene has good decomposition and evaporation in the sintering process, and does not leave a residue in the sintered body.
  • an appropriate organic compound lowers the viscosity in the sintering step, the addition of this is advantageous in terms of facilitating melting of the core.
  • polylactic acid such as a polymer of L-lactic acid or D-lactic acid is preferable because it has good decomposition and evaporation in the sintering process and does not leave a residue in the sintered body.
  • an organic compound having a viscosity at the Vicat softening point temperature of 200 mPa ⁇ s or less facilitates melting and outflow of the core in the process of shrinking the green body.
  • organic compounds examples include fatty acid esters, fatty acid amides, phthalic acid esters, paraffin wax, microcrystalline wax, polyethylene wax, polypropylene wax, carnauba wax, montan wax, urethanized wax, maleic anhydride modified wax, polyglycol. Examples of such compounds are listed. Only one selected from such organic compounds may be added, or two or more may be added.
  • a known powder injection molding binder may be used instead of or in addition to the above-mentioned additives.
  • the powder injection molding binder include polylactic acid, polyoxymethylene, polypropylene, an organic compound having a viscosity at 150 ° C. of 200 mPa ⁇ s or less, and a second thermoplastic resin having a Vicat softening point of 130 ° C. or less.
  • Such a powder injection molding binder is generally available under the name MRM-1 (trade name of IHI Turbo Co., Ltd.).
  • thermoplastic resin and additives are used in a finely crushed form for convenience of kneading.
  • the finely crushed form may be any form convenient for kneading, such as powder, granule, strip, etc.
  • the term “powder” includes all these aspects. Define and use.
  • the mixture of the thermoplastic resin powder and the additive powder is kneaded by heating to 100 to 150 ° C. to obtain an appropriate viscosity. After kneading, the air-cooled solid is pulverized and subjected to injection molding.
  • the above-mentioned kneaded mixture is heated to 160 to 200 ° C. to give sufficient fluidity, and injected into the mold 30 through the runner 31 with a pressure of about 100 MPa.
  • the mixture is molded by filling the cavity 33 of the mold 30 without a gap, and is taken out from the mold 30 and air-cooled, whereby the core 20 is obtained.
  • the mold 10 is assembled in combination with the core 20.
  • the core 20 has one end fitted to the second mold 13 and the other end fitted to the insert 15.
  • the first mold 11 is fitted to the second mold 13 and the insert 15 so as to sandwich them, and the mold 10 having a form as shown in FIG. 3 is assembled.
  • the mold 10 assembled in this way is introduced into an injection molding machine.
  • the injection molding machine a general machine for MIM can be used.
  • the composition to be subjected to powder injection molding is kneaded.
  • a mixture of metal powder or ceramic powder and a binder is suitable.
  • metal powder or ceramic powder powders of various materials can be used according to required characteristics.
  • a material for the pipe joint 1 for example, 316 steel (ASTM) is suitable in consideration of corrosion resistance, and powder of such material is used.
  • a general powder injection molding binder can be used as the binder.
  • the powder injection molding binder include polylactic acid, polyoxymethylene, polypropylene, an organic compound having a viscosity at 150 ° C. of 200 mPa ⁇ s or less, and a second thermoplastic resin having a Vicat softening point of 130 ° C. or less. Can be suitably used.
  • Such a powder injection molding binder is generally available under the name MRM-1 (trade name of IHI Turbo).
  • Such a binder may be the same as or different from the binder used for forming the core 20.
  • the binder mixing ratio can be adjusted as appropriate.
  • a larger binder mixing ratio is advantageous for maintaining the shape of the molded body.
  • a smaller binder mixing ratio is advantageous in that it suppresses volume shrinkage due to sintering. Therefore, the mixing ratio of the binder can be, for example, 30 to 60% by volume, and more preferably 35 to 50% by volume with respect to the metal powder or ceramic powder.
  • the mixture of the metal powder or ceramic powder and the binder is heated to 100 to 150 ° C. and kneaded to give an appropriate viscosity.
  • the above-mentioned kneaded mixture is heated to 160 to 200 ° C. to give sufficient fluidity, and injected into the mold 10 through the runner 17 together with a pressure of about 100 MPa.
  • the mixture is molded by filling the cavity 19 in the mold 10 without any gap. Thereafter, the green body 40 is taken out together with the core 20 by a procedure almost opposite to that for assembling the mold 10.
  • the green body 40 taken out from the mold 10 is in a state in which the core 20 is incorporated therein.
  • the green body 40 is introduced into a sintering furnace capable of controlling the atmosphere. While purging the inside of the furnace with a non-oxidizing gas such as nitrogen under an appropriate reduced pressure, the green body 40 is raised at a temperature rising rate of about 0.3 to 2 ° C./min by an appropriate heating means such as a carbon heater. Warm up.
  • the temperature increase rate may be increased up to about 70 to 150 ° C., and the temperature increase rate may be decreased beyond that.
  • the green body 40 softens and contracts. However, since the core 20 also has the above-described composition, the green body 40 similarly softens and contracts. . Since the softening and shrinkage of both are harmonized, the green body 40 appropriately retains its shape and structure by the core 20 in this process. In order to coordinate both softening and shrinkage, a step of maintaining the temperature at about 70 to 150 ° C. for 30 minutes or more may be provided. Further, the outside of the green body 40 may be supported by an appropriate jig in order to maintain the outer shape.
  • the temperature raising conditions generally employed by those skilled in the art in MIM and CIM can be applied.
  • the above-described temperature increase may be continued up to about 500 ° C., or a step of appropriately maintaining the temperature at 400 to 500 ° C. may be provided.
  • the binder and the core 20 in the green body 40 are melted, decomposed, evaporated and converted into a gas, which is discharged out of the furnace together with the purge gas.
  • the furnace is cooled while continuing the purge.
  • the cooling rate should be appropriately controlled so as not to give an excessive thermal shock to the sintered body.
  • nitrogen or the like is introduced to bring the inside of the furnace to atmospheric pressure, and the sintered body is taken out.
  • the green body is sintered with the core incorporated therein, but the core disappears during the sintering process, so it is not necessary to remove it after sintering.
  • the shape of the through-hole is appropriately maintained by the core even in the powder injection molding process and the initial stage of sintering. Therefore, the pipe joint 1 obtained by the above-described process has a desired shape and smooth inner and outer surfaces without performing additional machining. Unlike the through hole formed by machining, the through hole of the pipe joint 1 can have a smooth shape and a smooth inner surface, so that the fluid can flow smoothly and does not form a liquid pool. In a chemical plant, a painting line, etc., it is particularly suitable for application to piping systems, pump systems, control equipment, etc.
  • a smooth inner surface is advantageous in that it suppresses turbulent flow in the through-hole and reduces flow velocity resistance, and is advantageous in that it can suppress adverse effects such as noise and vibration in piping systems, pump systems, and control equipment. is there.
  • the preferred embodiment has been described above by taking a pipe joint having a bent through hole as an example.
  • This embodiment can be applied to the sintering of various products.
  • the through hole is not limited to a bent shape as illustrated, but may be a simpler shape or a more complicated shape.
  • this embodiment can be applied not only to the elbow type as illustrated in FIG. 2 but also to a pipe joint having a more complicated bent shape.
  • the target product does not need to have openings at both ends, and may have openings at only one side.
  • the example which forms a structure like the through-hole or cavity inside a sintered compact was demonstrated, it can apply also when forming a part of external structure. If the external structure is supported by an equivalent of the above-described core, the external deformation in the preliminary sintering stage can be prevented.
  • the metal powder having a composition corresponding to SUS316 was mixed with 40% by volume of MRM-1 and kneaded.
  • a short tubular simulated molded body was injection molded from such a mixture.
  • the simulated molded body has linear through holes by molding using a metal core. The core was withdrawn and a hollow through hole was submitted for testing.
  • the 12 mixtures listed in Table 1 were kneaded at 150 ° C.
  • the mixing ratio is expressed in weight percent. And it filled with the through-hole of the above-mentioned simulation molded object, respectively.
  • the simulated compact was introduced into a sintering furnace and sintered. Sintering was performed by purging with nitrogen at a flow rate of 3 l / min under a reduced pressure of 13.3 kPa, raising the temperature to 90 ° C. at 0.67 ° C./min, holding at 90 ° C. for 3 hours, and The temperature was raised to 800 ° C. at 67 ° C./min, and the temperature was raised from 800 ° C. to 1350 ° C. at 5 ° C./min.
  • Sample 2 was too fluid during the kneading process, and even if it was filled into the mock-up molded product, it formed a nest. Samples 3 and 8 were too fluid. Therefore, it was judged that these could not be kneaded. Samples 1, 4 to 7 and 9 to 12 had no problem in kneading, but sample 12 was slightly lacking in fluidity than the others, and sufficient kneading took time. In Samples 1 to 4 and Samples 8 to 10, deformation or damage was observed in the appearance after sintering. Only Samples 5 to 7 and Samples 11 and 12 were normal sintered bodies. In particular, Samples 11 and 12 had beautiful and smooth inner and outer surfaces.
  • the mixing ratio of acrylic is preferably 50% by weight or more, more preferably 70% by weight. % Or more is estimated to be suitable. Further, from the viewpoint of kneadability, it is preferably less than 100% by weight, more preferably less than 90% by weight.
  • a core manufacturing method for powder injection molding suitable for manufacturing a product having a cavity or a through hole therein, and a powder injection molding method using such a core are provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Producing Shaped Articles From Materials (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)

Abstract

L'invention porte sur un procédé de frittage qui comprend : le malaxage d'une première composition comprenant une première poudre de résine thermoplastique ; l'exécution d'un moulage par injection de telle sorte que ladite première composition, qui a été malaxée, joue le rôle d'un noyau ; la fabrication d'un moule par positionnement dudit noyau dans un moule extérieur ; le malaxage d'une seconde composition comprenant une poudre choisie dans le groupe composé des métaux et des céramiques et une poudre d'un liant pour le moulage par injection de la seconde poudre ; l'injection de la seconde composition, qui a été malaxée, dans le moule pour donner un corps cru ; et ensuite, le frittage dudit corps cru en laissant ledit noyau à l'intérieur.
PCT/JP2011/050569 2010-01-14 2011-01-14 Procédé de frittage WO2011087098A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010005608A JP2011144419A (ja) 2010-01-14 2010-01-14 焼結方法
JP2010-005608 2010-01-14

Publications (1)

Publication Number Publication Date
WO2011087098A1 true WO2011087098A1 (fr) 2011-07-21

Family

ID=44304367

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2011/050569 WO2011087098A1 (fr) 2010-01-14 2011-01-14 Procédé de frittage

Country Status (2)

Country Link
JP (1) JP2011144419A (fr)
WO (1) WO2011087098A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015082452A1 (fr) * 2013-12-03 2015-06-11 Koninklijke Philips N.V. Procédé de fabrication d'une cellule barrière en céramique laissant passer la lumière et cellule barrière obtenue par ce procédé
EP3019313A1 (fr) * 2013-07-09 2016-05-18 United Technologies Corporation Motif thermopolymère encapsulé dans une céramique ou support pourvu de placage métallique
CN108436091A (zh) * 2018-04-20 2018-08-24 赣州有色冶金研究所 一种钨坩埚的制备方法
US10927843B2 (en) 2013-07-09 2021-02-23 Raytheon Technologies Corporation Plated polymer compressor
US11267576B2 (en) 2013-07-09 2022-03-08 Raytheon Technologies Corporation Plated polymer nosecone
US11268526B2 (en) 2013-07-09 2022-03-08 Raytheon Technologies Corporation Plated polymer fan
CN114599466A (zh) * 2019-12-24 2022-06-07 可隆塑胶株式会社 金属粉末注射成型用粘结剂组合物
US11691388B2 (en) 2013-07-09 2023-07-04 Raytheon Technologies Corporation Metal-encapsulated polymeric article

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6445858B2 (ja) 2014-12-12 2018-12-26 住友電工焼結合金株式会社 焼結部品の製造方法、及びドリル
JP2019070194A (ja) * 2018-11-29 2019-05-09 住友電工焼結合金株式会社 焼結部品

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11335704A (ja) * 1998-05-20 1999-12-07 Olympus Optical Co Ltd 金属粉末焼結体の製造方法及びインサート成形用中子
JP2005048230A (ja) * 2003-07-28 2005-02-24 Hiroyuki Suzuki 焼結製品の孔形成方法及び焼結製品
JP2008241030A (ja) * 2007-02-27 2008-10-09 Juki Corp 動圧形流体軸受用スリーブの製造方法および動圧形流体軸受用スリーブ
JP4317916B1 (ja) * 2009-03-16 2009-08-19 株式会社テクネス 射出成形用組成物

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11335704A (ja) * 1998-05-20 1999-12-07 Olympus Optical Co Ltd 金属粉末焼結体の製造方法及びインサート成形用中子
JP2005048230A (ja) * 2003-07-28 2005-02-24 Hiroyuki Suzuki 焼結製品の孔形成方法及び焼結製品
JP2008241030A (ja) * 2007-02-27 2008-10-09 Juki Corp 動圧形流体軸受用スリーブの製造方法および動圧形流体軸受用スリーブ
JP4317916B1 (ja) * 2009-03-16 2009-08-19 株式会社テクネス 射出成形用組成物

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3019313A1 (fr) * 2013-07-09 2016-05-18 United Technologies Corporation Motif thermopolymère encapsulé dans une céramique ou support pourvu de placage métallique
EP3019313A4 (fr) * 2013-07-09 2017-04-05 United Technologies Corporation Motif thermopolymère encapsulé dans une céramique ou support pourvu de placage métallique
US10927843B2 (en) 2013-07-09 2021-02-23 Raytheon Technologies Corporation Plated polymer compressor
US11267576B2 (en) 2013-07-09 2022-03-08 Raytheon Technologies Corporation Plated polymer nosecone
US11268526B2 (en) 2013-07-09 2022-03-08 Raytheon Technologies Corporation Plated polymer fan
US11691388B2 (en) 2013-07-09 2023-07-04 Raytheon Technologies Corporation Metal-encapsulated polymeric article
WO2015082452A1 (fr) * 2013-12-03 2015-06-11 Koninklijke Philips N.V. Procédé de fabrication d'une cellule barrière en céramique laissant passer la lumière et cellule barrière obtenue par ce procédé
TWI632705B (zh) * 2013-12-03 2018-08-11 皇家飛利浦有限公司 製造陶瓷透光屏障單元的方法、屏障單元、光源及照明器
US10060596B2 (en) 2013-12-03 2018-08-28 Koninklijke Philips N.V. Method of manufacturing a ceramic light transmitting barrier cell, and a barrier cell produced by that method
CN108436091A (zh) * 2018-04-20 2018-08-24 赣州有色冶金研究所 一种钨坩埚的制备方法
CN114599466A (zh) * 2019-12-24 2022-06-07 可隆塑胶株式会社 金属粉末注射成型用粘结剂组合物

Also Published As

Publication number Publication date
JP2011144419A (ja) 2011-07-28

Similar Documents

Publication Publication Date Title
WO2011087098A1 (fr) Procédé de frittage
Liu et al. Binder system for micropowder injection molding
US8834077B2 (en) Micro drill and method of fabricating the same
US8021604B2 (en) Preparation of filler-metal weld rod by injection molding of powder
EP1300209A2 (fr) Procédé de moulage par injection de poudre métallique en matières différentes pour la préparation de corps composites
US5393484A (en) Process for producing sintered body and magnet base
CN104668565A (zh) 粉末注射成型喂料制备方法及粉末注射成型生产方法
US20090022615A1 (en) Method of molding complex structures using a sacrificial material
EP3634668B1 (fr) Procédé de fabrication de pièces de forme complexe par moulage par injection de poudres métalliques
WO2020200426A1 (fr) Matière première frittable destinée à être utilisée dans des dispositifs d'impression 3d
JP2002206101A (ja) 焼結品製造方法、連続体製造方法、物品形成方法及び構造体
US11718736B2 (en) Binder for injection moulding compositions
JP2004525264A (ja) 金属射出成型による構造部材の製造
WO2011087097A1 (fr) Composition pour un moule de moulage par injection
Cao et al. Feedstock technology for reactive metal injection molding: process, design, and application
Liu et al. Research on manufacturing Cu matrix Fe-Cu-Ni-C alloy composite parts by indirect selective laser sintering
JPH0387302A (ja) 置き中子を用いた金属射出成形方法
Yin et al. Fabrication of micro gear wheels by micropowder injection molding
US20140187698A1 (en) Binder mixture for producing moulded parts using injection methods
TWI580746B (zh) 射出成型用結合劑
KR101788139B1 (ko) 분말야금용 바인더 조성물
KR101742144B1 (ko) 티타늄 또는 티타늄 합금 소결체 제조 방법
US6328918B1 (en) Low pressure injection molding of metal and ceramic threaded components
JP2006328435A (ja) 射出成形用組成物
JP2006257485A (ja) 射出成形用組成物

Legal Events

Date Code Title Description
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11732968

Country of ref document: EP

Kind code of ref document: A1