JPS58194523A - 型内真空射出成形方法 - Google Patents

型内真空射出成形方法

Info

Publication number
JPS58194523A
JPS58194523A JP7718082A JP7718082A JPS58194523A JP S58194523 A JPS58194523 A JP S58194523A JP 7718082 A JP7718082 A JP 7718082A JP 7718082 A JP7718082 A JP 7718082A JP S58194523 A JPS58194523 A JP S58194523A
Authority
JP
Japan
Prior art keywords
mold
cavity
sprue
vacuum
injection molding
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
JP7718082A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0239370B2 (enrdf_load_stackoverflow
Inventor
Hisashi Kojima
久司 小嶋
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.)
TEKUNOPURASU KK
Technoplas Inc
Original Assignee
TEKUNOPURASU KK
Technoplas Inc
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 TEKUNOPURASU KK, Technoplas Inc filed Critical TEKUNOPURASU KK
Priority to JP7718082A priority Critical patent/JPS58194523A/ja
Priority to EP82305715A priority patent/EP0096132B1/en
Priority to DE8282305715T priority patent/DE3279339D1/de
Publication of JPS58194523A publication Critical patent/JPS58194523A/ja
Priority to US06/810,892 priority patent/US4797236A/en
Publication of JPH0239370B2 publication Critical patent/JPH0239370B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/34Moulds having venting means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
JP7718082A 1982-05-09 1982-05-09 型内真空射出成形方法 Granted JPS58194523A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP7718082A JPS58194523A (ja) 1982-05-09 1982-05-09 型内真空射出成形方法
EP82305715A EP0096132B1 (en) 1982-05-09 1982-10-27 Injection molding method and apparatus
DE8282305715T DE3279339D1 (en) 1982-05-09 1982-10-27 Injection molding method and apparatus
US06/810,892 US4797236A (en) 1982-05-09 1985-12-18 Ultrahigh speed injection molding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7718082A JPS58194523A (ja) 1982-05-09 1982-05-09 型内真空射出成形方法

Publications (2)

Publication Number Publication Date
JPS58194523A true JPS58194523A (ja) 1983-11-12
JPH0239370B2 JPH0239370B2 (enrdf_load_stackoverflow) 1990-09-05

Family

ID=13626602

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7718082A Granted JPS58194523A (ja) 1982-05-09 1982-05-09 型内真空射出成形方法

Country Status (1)

Country Link
JP (1) JPS58194523A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003048237A (ja) * 2001-08-08 2003-02-18 Jsr Corp 導光板の成形方法および環状オレフィン系樹脂の成形方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5237015A (en) * 1975-09-19 1977-03-22 Hitachi Ltd Automatic stop mechanism of cassette tape recorder
JPS5380462A (en) * 1976-12-27 1978-07-15 Gakunan Yuuki Seisakushiyo Kk Process for vacuum molding of plastic molded form
JPS5443962A (en) * 1977-08-24 1979-04-06 British Industrial Plastics Injection molding machine
JPS57129728A (en) * 1981-02-06 1982-08-11 Toshiba Mach Co Ltd Vacuum injection molding machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5237015A (en) * 1975-09-19 1977-03-22 Hitachi Ltd Automatic stop mechanism of cassette tape recorder
JPS5380462A (en) * 1976-12-27 1978-07-15 Gakunan Yuuki Seisakushiyo Kk Process for vacuum molding of plastic molded form
JPS5443962A (en) * 1977-08-24 1979-04-06 British Industrial Plastics Injection molding machine
JPS57129728A (en) * 1981-02-06 1982-08-11 Toshiba Mach Co Ltd Vacuum injection molding machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003048237A (ja) * 2001-08-08 2003-02-18 Jsr Corp 導光板の成形方法および環状オレフィン系樹脂の成形方法

Also Published As

Publication number Publication date
JPH0239370B2 (enrdf_load_stackoverflow) 1990-09-05

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