TW360572B - Dewaxing method, dewaxed body obtained thereby and sintered body - Google Patents

Dewaxing method, dewaxed body obtained thereby and sintered body

Info

Publication number
TW360572B
TW360572B TW086112804A TW86112804A TW360572B TW 360572 B TW360572 B TW 360572B TW 086112804 A TW086112804 A TW 086112804A TW 86112804 A TW86112804 A TW 86112804A TW 360572 B TW360572 B TW 360572B
Authority
TW
Taiwan
Prior art keywords
melting point
thermoplastic binder
pressure
heated
vaporize
Prior art date
Application number
TW086112804A
Other languages
Chinese (zh)
Inventor
Takemori Takayama
Yoshitaka Oyama
Kazuo Okamura
Masato Miyake
Katsuyoshi Saito
Ono Hiroshi
Original Assignee
Komatsu Mfg Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Komatsu Mfg Co Ltd filed Critical Komatsu Mfg Co Ltd
Application granted granted Critical
Publication of TW360572B publication Critical patent/TW360572B/en

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
    • B22F3/10—Sintering only
    • B22F3/1017—Multiple heating or additional steps
    • B22F3/1021—Removal of binder or filler
    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)

Abstract

A degreasing method by which the time required for a degreasing process using vaporization/evaporation by heat and thermal decomposition is significantly reduced while the shape of an injection-molded item is retained is provided at a low cost. The degreasing process includes a 1st step in which the injection-molded item is placed in a low-pressure atmosphere whose pressure is lower than the normal pressure, heated at a temperature lower than the melting point of thermoplastic binder to vaporize at least 5 wt.% of the whole thermoplastic binder, and heated at a temperature lower than the melting point of the higher melting point component among an organic compound component and a thermoplastic resin component which easily vaporize to vaporize at least 10 wt.% of the whole thermoplastic binder, and the final heating temperature is not higher than 200 DEG C, and a 2nd step in which the molded item is heated to a temperature not lower than the highest melting point of the thermoplastic binder components in the atmosphere of gas which is inactive to the selected powder material under a pressure not lower than the normal pressure.
TW086112804A 1996-10-25 1997-09-05 Dewaxing method, dewaxed body obtained thereby and sintered body TW360572B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28433696A JP3290599B2 (en) 1996-10-25 1996-10-25 Degreasing method

Publications (1)

Publication Number Publication Date
TW360572B true TW360572B (en) 1999-06-11

Family

ID=17677258

Family Applications (1)

Application Number Title Priority Date Filing Date
TW086112804A TW360572B (en) 1996-10-25 1997-09-05 Dewaxing method, dewaxed body obtained thereby and sintered body

Country Status (5)

Country Link
JP (1) JP3290599B2 (en)
KR (1) KR100507036B1 (en)
DE (2) DE19782079T1 (en)
TW (1) TW360572B (en)
WO (1) WO1998018586A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI577469B (en) * 2012-03-29 2017-04-11 Seiko Epson Corp A method for producing a degreased body and a method for producing the sintered body

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100802108B1 (en) * 2006-11-06 2008-02-11 한국기계연구원 Piezoelectric ceramics and debinding method of piezoelectric ceramics to prevent abnormal grain growth during sintering
FR3033509B1 (en) * 2015-03-11 2019-08-23 Safran Aircraft Engines DELIANTING METHOD USING POSITIONING JIG
CN108031843B (en) * 2018-02-05 2024-03-19 宁波恒普技术股份有限公司 Adhesive trapping system and trapping device thereof
WO2019167753A1 (en) * 2018-03-01 2019-09-06 日本碍子株式会社 Method for degreasing ceramic molded body and method for manufacturing ceramic sintered body

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS609801A (en) * 1983-06-27 1985-01-18 Chugai Ro Kogyo Kaisha Ltd Vacuum sintering furnace
JP2821183B2 (en) * 1989-07-14 1998-11-05 ジューキ株式会社 Method for producing sintered body of particulate material
JPH0345567A (en) * 1989-07-14 1991-02-27 Juki Corp Production of sintered granular material
US4996022A (en) * 1989-07-14 1991-02-26 Juki Corporation Process for producing a sintered body
JPH0825802B2 (en) * 1990-01-22 1996-03-13 株式会社小松製作所 Debinding method
JPH0798690B2 (en) * 1990-07-10 1995-10-25 株式会社小松製作所 Debinding method
JPH04147905A (en) * 1990-10-08 1992-05-21 Juki Corp Manufacture of sintered body of glanular material
TW362999B (en) * 1992-06-02 1999-07-01 Advanced Materials Technplogies Pte Ltd Injection-mouldable metal powder-binder feedstock and method of forming metal injection-moulded article
WO1994020242A1 (en) * 1993-03-09 1994-09-15 Citizen Watch Co., Ltd. Process for manufacturing powder injection molded parts
JP3146861B2 (en) * 1993-07-09 2001-03-19 住友金属工業株式会社 Binder removal method and method for manufacturing ceramic sintered body
JP3342780B2 (en) * 1994-03-14 2002-11-11 株式会社小松製作所 Binder for metal powder injection molding, degreasing method using the same, and metal powder injection molded product obtained using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI577469B (en) * 2012-03-29 2017-04-11 Seiko Epson Corp A method for producing a degreased body and a method for producing the sintered body

Also Published As

Publication number Publication date
JPH10130063A (en) 1998-05-19
KR19980033156A (en) 1998-07-25
DE19782079C2 (en) 2001-12-13
DE19782079T1 (en) 1999-09-30
WO1998018586A1 (en) 1998-05-07
JP3290599B2 (en) 2002-06-10
KR100507036B1 (en) 2005-11-09

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