KR900006093A - 소결체의 제조방법 - Google Patents
소결체의 제조방법 Download PDFInfo
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- KR900006093A KR900006093A KR1019890014358A KR890014358A KR900006093A KR 900006093 A KR900006093 A KR 900006093A KR 1019890014358 A KR1019890014358 A KR 1019890014358A KR 890014358 A KR890014358 A KR 890014358A KR 900006093 A KR900006093 A KR 900006093A
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- water
- molded article
- soluble thermoplastic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
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- 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
- C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63408—Polyalkenes
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- 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
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- 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
- B22F1/103—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing an organic binding agent comprising a mixture of, or obtained by reaction of, two or more components other than a solvent or a lubricating agent
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- 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
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- 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
- B22F3/1025—Removal of binder or filler not by heating only
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- 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
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- 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
- C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63416—Polyvinylalcohols [PVA]; Polyvinylacetates
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- 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
- C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63424—Polyacrylates; Polymethacrylates
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- 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
- C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63432—Polystyrenes
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- 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
- C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63444—Nitrogen-containing polymers, e.g. polyacrylamides, polyacrylonitriles, polyvinylpyrrolidone [PVP], polyethylenimine [PEI]
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- 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
- C04B35/63448—Polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63488—Polyethers, e.g. alkylphenol polyglycolether, polyethylene glycol [PEG], polyethylene oxide [PEO]
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- 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
- C04B35/636—Polysaccharides or derivatives thereof
- C04B35/6365—Cellulose or derivatives thereof
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- 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
- C04B35/638—Removal thereof
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 치수가 다른 성형품을 추출시켰을 때의 시간과 추출률과의 관계를 도시한 그래프.
제3도는 특허청구의 범위 제11항에 기재한 방법을 실시하기 위한 장치의 구성을 도시한 개략도.
제4도는 제3도에 도시한 장치를 사용하여 탈결합시킨 때의 추출시간과 추출률과의 관계를 도시한 그래프.
Claims (16)
- 적어도 1종의 수용성 열가소성 유기 중합체 및 적어도 1종의 수불용성 열가소성 유기 중합체를 함유하는 유기 바인더와 분말을 혼합하여 혼합물을 제조하고, 상기 혼합물을 가소성형하여 가소성형품을 수득하고, 상기 가소성형품을 물과 접촉시켜 상기 수용성 열가소성 유기 중합체를 추출, 제거함으로써 탈결합시키고, 상기 탈결합 후, 가소성형품을 소결시킴을 특징으로 하는 소결체의 제조방법.
- 제1항에 있어서, 상기 수용성 열가소성 유기 중합체를 물과 접촉시킨 후, 잔류하는 유기 바인더를 가열로(furnace)내에서 가열하여 단계를 추가로 포함하는 소결체의 제조방법.
- 제1항 또는 제2항에 있어서, 상기 잔류하는 유기 바인더의 가열제거를 대기압 또는 감압하에 상기 탈결합 처리에서의 가열로내에서 수행하는 방법.
- 제1항 내지 제3항중 어느 한 항에 있어서, 상기 수용성 열가소성 유기 중합체가 폴리에틸렌 옥사이드, 폴리에틸렌 글리콜, 메틸 셀룰로오스, 카복시메틸 셀룰로오스, 폴리아크릴아미드, 폴리비닐 에테르, 폴리 아크릴산 및 폴리메타크릴산으로 이루어진 군으로부터 선택된 적어도 1종의 화합물인 방법.
- 제1항 내지 제4항중 어느 한 항에 있어서, 상기 유기 바인더가 60 내지 90중량%의 폴리에틸렌 옥사이드, 5 내지 38중량%의 수불용성 열가소성 유기 중합체, 및 2 내지 35중량%의 윤활제 및/또는 가소제를 포함하는 방법.
- 제1항 내지 제5항중 어느 한 항에 있어서, 상기 성형품중 유기 바인더의 양이 상기 성형품의 총 용적을 기준으로 40 내지 60용적%인 방법.
- 제1항 내지 제6항중 어느 한 항에 있어서, 상기 폴리에틸렌 옥사이드가 50,000 내지 5,000,000의 분자량을 갖는 방법.
- 제1항 내지 제7항중 어느 한 항에 있어서, 상기 수불용성 열가소성 유기 중합체가 폴리스티렌, 폴리에틸렌, 어택틱 폴리프로필렌 및 에틸렌/비닐 아세테이트 공중합체로 이루어진 군으로부터 선택된 적어도 1종의 화합물인 방법.
- 제1항 내지 제8항중 어느 한 항에 있어서, 상기 가소성형품고 물과의 접촉을, 상기 가소성형품을 물에 침지시켜 수행하는 방법.
- 제1항 내지 제9항중 어느 한 항에 있어서, 상기 가소성형품과 접촉된 물을 유동화시켜 상기 수용성 열가소성 중합체를 신속하게 추출시키는 방법.
- 제9항 또는 제10항에 있어서, 상기 가소성형품과 접촉된 물을 교반기에 의하여 유동화시키는 방법.
- 제9항 또는 제10항에 있어서, 상기 가소성형품과 접촉된 물을 수 슬러리 펌프에 의하여 유동화 시키는 방법.
- 제9항 또는 제10항에 있어서, 상기 사출성형품과 접촉된 물을 초음파에 의하여 유동화시키는 방법.
- 제1항 내지 제13항중 어느 한항에 있어서, 상기 탈결합 처리에서, 성형품과 접촉된 물의 적어도 일부를 상기 시스템의 외부로 배출시키고, 수용성 열가소성 중합체를 함유하지 않는 물 또는 성형품과 접촉하고 있는 물보다 낮은 농도로 수용성 열가소성 중합체를 함유하는 물을 시스템내로 공급하는 방법.
- 제14항에 있어서, 시스템 외부로 배출된 물로부터 상기 수용성 열가소성 중합체를 제거한 후, 이와 같이 처리한 물을 시스템으로 재순환시키는 방법.
- 제14항또는 제15항에 있어서, 상기 수용성 열가소성 중합체를 함유하지 않는 물 또는 상기 성형품과 접촉하고 있는 물보다 낮은 농도로 수용성 열가소성 중합체를 함유하는 물을 상기 성형품상에 분무하는 방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63-252672 | 1988-10-06 | ||
JP252672/1988 | 1988-10-06 | ||
JP63252672A JPH0653884B2 (ja) | 1988-10-06 | 1988-10-06 | 粉末の射出成形体からバインダーを除去する方法 |
JP611/1989 | 1989-01-05 | ||
JP64000611A JPH0689372B2 (ja) | 1989-01-05 | 1989-01-05 | 粉末の成形体の脱脂方法 |
JP64000610A JPH0689371B2 (ja) | 1989-01-05 | 1989-01-05 | 粉末の成形体の脱脂方法 |
JP610/1989 | 1989-01-05 | ||
JP89-611 | 1989-01-05 | ||
JP89-610 | 1989-01-05 | ||
JP128261/1989 | 1989-05-22 | ||
JP89-128261 | 1989-05-22 | ||
JP1128261A JPH0689370B2 (ja) | 1989-05-22 | 1989-05-22 | 粉末の可塑成形による焼結品の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR900006093A true KR900006093A (ko) | 1990-05-07 |
KR930006005B1 KR930006005B1 (ko) | 1993-07-01 |
Family
ID=27453214
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019890014358A KR930006005B1 (ko) | 1988-10-06 | 1989-10-06 | 소결체의 제조방법 |
Country Status (5)
Country | Link |
---|---|
US (1) | US5059388A (ko) |
EP (1) | EP0362866B1 (ko) |
KR (1) | KR930006005B1 (ko) |
DE (1) | DE68914379T2 (ko) |
HK (1) | HK102095A (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100477321B1 (ko) * | 2002-01-12 | 2005-03-18 | 김형수 | 스티렌계 영구제전성 수지 조성물의 제조방법 |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0393673A (ja) * | 1989-09-07 | 1991-04-18 | Nkk Corp | 金属またはセラミックスの成形体の分散媒除去装置 |
US5665289A (en) * | 1990-05-07 | 1997-09-09 | Chang I. Chung | Solid polymer solution binders for shaping of finely-divided inert particles |
JPH04270185A (ja) * | 1990-05-07 | 1992-09-25 | Chang I Chung | 金属及びセラミックス粉末の粉体加工用高分子固溶体バインダー |
US5194203A (en) * | 1991-02-28 | 1993-03-16 | Mitsui Mining & Smelting Co., Ltd. | Methods of removing binder from powder moldings |
JP3092860B2 (ja) * | 1991-04-18 | 2000-09-25 | 三井金属鉱業株式会社 | ジルコニアセラミックスの射出成形方法 |
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CA615429A (en) * | 1961-02-28 | A. Strivens Maurice | Formation of ceramic mouldings | |
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-
1989
- 1989-10-04 US US07/417,198 patent/US5059388A/en not_active Expired - Lifetime
- 1989-10-06 DE DE68914379T patent/DE68914379T2/de not_active Expired - Fee Related
- 1989-10-06 EP EP89118587A patent/EP0362866B1/en not_active Expired - Lifetime
- 1989-10-06 KR KR1019890014358A patent/KR930006005B1/ko not_active IP Right Cessation
-
1995
- 1995-06-22 HK HK102095A patent/HK102095A/xx not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100477321B1 (ko) * | 2002-01-12 | 2005-03-18 | 김형수 | 스티렌계 영구제전성 수지 조성물의 제조방법 |
Also Published As
Publication number | Publication date |
---|---|
EP0362866B1 (en) | 1994-04-06 |
US5059388A (en) | 1991-10-22 |
EP0362866A2 (en) | 1990-04-11 |
DE68914379D1 (de) | 1994-05-11 |
EP0362866A3 (en) | 1991-11-13 |
KR930006005B1 (ko) | 1993-07-01 |
HK102095A (en) | 1995-06-30 |
DE68914379T2 (de) | 1994-09-01 |
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