GB1372959A - Injection moulding method - Google Patents

Injection moulding method

Info

Publication number
GB1372959A
GB1372959A GB4827572A GB4827572A GB1372959A GB 1372959 A GB1372959 A GB 1372959A GB 4827572 A GB4827572 A GB 4827572A GB 4827572 A GB4827572 A GB 4827572A GB 1372959 A GB1372959 A GB 1372959A
Authority
GB
United Kingdom
Prior art keywords
pressure
chamber
gas
mould
melt
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.)
Expired
Application number
GB4827572A
Other languages
English (en)
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.)
TZENTRALNA LAB STEX
Original Assignee
TZENTRALNA LAB STEX
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 TZENTRALNA LAB STEX filed Critical TZENTRALNA LAB STEX
Publication of GB1372959A publication Critical patent/GB1372959A/en
Expired legal-status Critical Current

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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/10—Applying counter-pressure during expanding
    • B29C44/105—Applying counter-pressure during expanding the counterpressure being exerted by a fluid
    • 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
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/174—Applying a pressurised fluid to the outer surface of the injected material inside the mould cavity, e.g. for preventing shrinkage marks
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
GB4827572A 1971-10-23 1972-10-19 Injection moulding method Expired GB1372959A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BG1884971 1971-10-23

Publications (1)

Publication Number Publication Date
GB1372959A true GB1372959A (en) 1974-11-06

Family

ID=3898153

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4827572A Expired GB1372959A (en) 1971-10-23 1972-10-19 Injection moulding method

Country Status (8)

Country Link
JP (1) JPS4851057A (enExample)
AT (1) AT338504B (enExample)
BE (1) BE786969A (enExample)
DE (1) DE2235994A1 (enExample)
FR (1) FR2156558B1 (enExample)
GB (1) GB1372959A (enExample)
IT (1) IT965932B (enExample)
NL (1) NL7214227A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5602188A (en) * 1993-07-13 1997-02-11 Suzuki Sogyo Co., Ltd. Biodegradable resin foam and method and apparatus for producing same
CN119610539A (zh) * 2024-12-24 2025-03-14 国网湖南省电力有限公司 防雷绝缘筒制造方法及设备

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH616106A5 (en) * 1976-09-17 1980-03-14 Buehler Ag Geb Process and device for producing plastic mouldings with a smooth, compact surface and a cellular-porous core by injection moulding
AT381063B (de) * 1983-09-28 1986-08-25 Npo Plastik Verfahren zum herstellen von kunststoffteilen
FR2645068A1 (fr) * 1989-04-03 1990-10-05 Vanotti Gerard Procede de fabrication de pieces en matiere thermoplastique a paroi mince et installation pour la mise en oeuvre du procede
GB9114324D0 (en) * 1991-07-03 1991-08-21 Kontor Moulding Systems Ltd Injection moulding of thermoplastic polymers
DE19743838C2 (de) 1997-10-04 2000-08-24 Battenfeld Gmbh Vorrichtung zum Spritzgießen von Kunststoffgegenständen
EP4650159A3 (en) * 2018-11-21 2025-12-24 NIKE Innovate C.V. System for a foaming process
US11673358B2 (en) 2018-11-21 2023-06-13 Nike, Inc. System and methods for forming a sole structure

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044118A (en) * 1958-06-23 1962-07-17 Du Pont Molding method and apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5602188A (en) * 1993-07-13 1997-02-11 Suzuki Sogyo Co., Ltd. Biodegradable resin foam and method and apparatus for producing same
US5849339A (en) * 1993-07-13 1998-12-15 Suzuki Sogyo Co., Ltd. Apparatus for producing biodegradable resin foam
US6228898B1 (en) 1993-07-13 2001-05-08 Suzuki Sogyo, Co., Ltd. Biodegradable resin foam and method and apparatus for producing same
US6626654B1 (en) 1993-07-13 2003-09-30 Suzuki Sogyo Co., Ltd. Biodegradable resin foam and method and apparatus for producing same
CN119610539A (zh) * 2024-12-24 2025-03-14 国网湖南省电力有限公司 防雷绝缘筒制造方法及设备

Also Published As

Publication number Publication date
DE2235994A1 (de) 1973-05-03
BE786969A (fr) 1972-11-16
FR2156558A1 (enExample) 1973-06-01
JPS4851057A (enExample) 1973-07-18
ATA893972A (de) 1976-12-15
NL7214227A (enExample) 1973-04-25
IT965932B (it) 1974-02-11
AT338504B (de) 1977-08-25
FR2156558B1 (enExample) 1975-03-07

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Legal Events

Date Code Title Description
PS Patent sealed
429A Application made for amendment of specification (sect. 29/1949)
429C Application to amend the specification withdrawn (sect. 29/1949)
PCNP Patent ceased through non-payment of renewal fee