KR920702280A - 사출압축 성형방법 - Google Patents

사출압축 성형방법

Info

Publication number
KR920702280A
KR920702280A KR1019920700714A KR920700714A KR920702280A KR 920702280 A KR920702280 A KR 920702280A KR 1019920700714 A KR1019920700714 A KR 1019920700714A KR 920700714 A KR920700714 A KR 920700714A KR 920702280 A KR920702280 A KR 920702280A
Authority
KR
South Korea
Prior art keywords
pressure
injection
cavity
pressure oil
synthetic resin
Prior art date
Application number
KR1019920700714A
Other languages
English (en)
Inventor
아끼라 요꼬다
Original Assignee
가다따 데쯔야
가부시기가이샤 고마쯔세이사꾸쇼
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 가다따 데쯔야, 가부시기가이샤 고마쯔세이사꾸쇼 filed Critical 가다따 데쯔야
Publication of KR920702280A publication Critical patent/KR920702280A/ko

Links

Classifications

    • 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
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C45/561—Injection-compression moulding
    • 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
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • 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
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C45/561—Injection-compression moulding
    • B29C2045/563—Enlarging the mould cavity during injection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B29K2023/0658—PE, i.e. polyethylene characterised by its molecular weight
    • B29K2023/0683—UHMWPE, i.e. ultra high molecular weight polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material

Abstract

내용 없음

Description

사출압축 성형방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 사출성형장치의 전체의 반도해식 종단면도, 제2도는 요부확대 종단면도, 제3도는 성형공정을 설명하는 조작순서도.

Claims (6)

  1. (a)가동금형의 배후로부터 밀어내기 압력을 부가함으로써 목적하는 성형품 용적이하로 수축시킨 캐비티 내부로 가소화 합성수지를 사출충전하고, (b)상기 가소화 합성수지를 사출충전 종료후, 가동금형의 배후로부터 부가하는 밀어내기 압력을 저하시켜, (c)상기 개비티내부에 압축되어 충전된 가소화 합성수지의 탄성회복응력에 의해 캐비티용적을 성형품용적 이상으로 확대시켜, (d)상기 탄성 회복응력이 완화된후, 다시 상기 가동금형의 배후로 부터 부가하는 밀어내기 압력을 상승시킴으로써 캐비티용적을 성형품용적까지 압축하는 것을 특징으로 하는 사출성형 압축방법.
  2. 제1항에 있어서, 상기 목적의 성형품 용적이하로 수축시킨 캐비티내부에, 캐비티내부로 사출충전된 가소화 합성수지의 수지압력이 적어도 탄성회복응력이 생기는 압력으로 상승할때까지 가소화 합성수지를 사출 충전하는 것을 특징으로 하는 사출성형 압축방법.
  3. 제1항 또는 제2항에 있어서, 상기 캐비티내부로 가소화 합성수지를 사출충전한후, 즉시 사출압력을 저하시키는 것을 특징으로 하는 사출성형 압출방법.
  4. 제1항 내지 제3항의 어느 한 항에 있어서, 상기 탄성회복응력에 의한 캐비디용적의 확대량에 규제를 설정하는 것을 특징으로 하는 사출압력성형방법.
  5. 제1항 내지 제4항의 어느 한 항에 있어서, 상기 가동금형의 배후로부터 부가하는 밀어내기 압력의 저하 또는 상승은, 압력유를 배급함으로써 구동하는 압축실린더에 걸어 맞춰된 압축플레이트의 이동에 의해 제어되는 것을 특징으로 하는 사출압력성형 방법.
  6. 제5항에 있어서, 상기 압축 실린더의 압력유의 배급은, 이 압축실린더와 압력유원과의 사이이 압력유관로(管路)위에 설치 될수있음과 동시에, 이 압력유 관로위에 설치되는 전자전환 밸브와 압축실린더와의 사이에 병렬로 배치되는 릴리이프밸브 및 첵밸브 또는 파일럿첵밸브에 의해 제어되는 것을 특징으로 하는 사출압축성형방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920700714A 1990-08-03 1991-07-23 사출압축 성형방법 KR920702280A (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2207209A JPH0720650B2 (ja) 1990-08-03 1990-08-03 射出圧縮成形方法
JP90-207209 1990-08-03
PCT/JP1991/000978 WO1992002352A1 (en) 1990-08-03 1991-07-23 Injection-compression-molding method

Publications (1)

Publication Number Publication Date
KR920702280A true KR920702280A (ko) 1992-09-03

Family

ID=16536047

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920700714A KR920702280A (ko) 1990-08-03 1991-07-23 사출압축 성형방법

Country Status (4)

Country Link
EP (1) EP0495112A4 (ko)
JP (1) JPH0720650B2 (ko)
KR (1) KR920702280A (ko)
WO (1) WO1992002352A1 (ko)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100234624B1 (ko) * 1996-02-27 1999-12-15 히로후미 스가타 수지제 콘크리트 형틀패널의 성형법 및 이 방법에 의해 성형된 콘크리트 형틀패널
KR20030034349A (ko) * 2001-10-22 2003-05-09 (주)누리텍 아이엔씨 밸브바디 성형용 금형장치

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0780228B2 (ja) * 1993-01-25 1995-08-30 株式会社小松製作所 射出成形方法
JP3385190B2 (ja) * 1997-09-30 2003-03-10 ユニ・チャーム株式会社 使い捨て吸収性物品
US7846369B2 (en) 2006-03-29 2010-12-07 Akopyan Razmik L Apparatus and method for molding polymer parts by displacement injection molding
WO2012030313A1 (en) 2008-04-25 2012-03-08 James Winkelman Method of determining a complete blood count and a white blood cell differential count
US9602777B2 (en) 2008-04-25 2017-03-21 Roche Diagnostics Hematology, Inc. Systems and methods for analyzing body fluids

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6058010B2 (ja) * 1981-04-14 1985-12-18 三井化学株式会社 射出圧縮成形方法
JPS58151228A (ja) * 1982-03-05 1983-09-08 Seiko Epson Corp 射出圧縮成形法
JPS61205112A (ja) * 1985-03-08 1986-09-11 Idemitsu Petrochem Co Ltd 射出圧縮成形方法
JPS62170315A (ja) * 1986-01-24 1987-07-27 Sumitomo Heavy Ind Ltd 射出成形方法
JPS63114614A (ja) * 1986-04-14 1988-05-19 Olympus Optical Co Ltd 射出成形用金型

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100234624B1 (ko) * 1996-02-27 1999-12-15 히로후미 스가타 수지제 콘크리트 형틀패널의 성형법 및 이 방법에 의해 성형된 콘크리트 형틀패널
KR20030034349A (ko) * 2001-10-22 2003-05-09 (주)누리텍 아이엔씨 밸브바디 성형용 금형장치

Also Published As

Publication number Publication date
EP0495112A1 (en) 1992-07-22
JPH0490322A (ja) 1992-03-24
WO1992002352A1 (en) 1992-02-20
EP0495112A4 (en) 1993-02-17
JPH0720650B2 (ja) 1995-03-08

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