GB1463687A - Method and apparatus for the manufacture of thick sheets of thermoplastic material - Google Patents

Method and apparatus for the manufacture of thick sheets of thermoplastic material

Info

Publication number
GB1463687A
GB1463687A GB1847374A GB1847374A GB1463687A GB 1463687 A GB1463687 A GB 1463687A GB 1847374 A GB1847374 A GB 1847374A GB 1847374 A GB1847374 A GB 1847374A GB 1463687 A GB1463687 A GB 1463687A
Authority
GB
United Kingdom
Prior art keywords
mould
accumulators
april
cooling
thick sheets
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
GB1847374A
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.)
Vowinckel J J
WERNEKKE K
Original Assignee
Vowinckel J J
WERNEKKE K
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 Vowinckel J J, WERNEKKE K filed Critical Vowinckel J J
Publication of GB1463687A publication Critical patent/GB1463687A/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
    • 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
    • B29C45/57—Exerting after-pressure on the moulding material

Abstract

1463687 Injection moulding sheets K WERNEKKE [trading as JOH JAC VOWINCKEL] 26 April 1974 [28 April 1973] 18473/74 Heading B5A In a method of injection moulding thick sheets, e.g. plates for filter presses, thermoplastic moulding material is fed to a mould 13 and to at least one accumulator chamber 6 from which additional material is injected into the filled mould to compensate for shrinkage caused by cooling which cooling is controlled so as to progress towards the point of entry of material from the accumulator chamber or chambers. In the apparatus shown in Figs. 1, 2 two injectors 4, 4<SP>1</SP> are provided and two accumulators 6, each comprising a piston 12 and cylinder 11. Electric heaters 10 are provided at the inlets to the mould. Heat exchange plates 8 are provided for the mould 1, 3. In a second embodiment a single injector is provided, and the accumulators are each connected to the mould at inlets spaced from the inlet from the injector.
GB1847374A 1973-04-28 1974-04-26 Method and apparatus for the manufacture of thick sheets of thermoplastic material Expired GB1463687A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732321634 DE2321634A1 (en) 1973-04-28 1973-04-28 PROCESS FOR MANUFACTURING THICK-WALLED PANELS FROM A POLYOLEFIN

Publications (1)

Publication Number Publication Date
GB1463687A true GB1463687A (en) 1977-02-02

Family

ID=5879597

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1847374A Expired GB1463687A (en) 1973-04-28 1974-04-26 Method and apparatus for the manufacture of thick sheets of thermoplastic material

Country Status (3)

Country Link
JP (1) JPS5013456A (en)
DE (1) DE2321634A1 (en)
GB (1) GB1463687A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2406294A1 (en) * 1977-10-13 1979-05-11 Siemens Ag DEVICE FOR THE MANUFACTURING OF MOLDED PARTS AND COATED AND SEALED ELECTRICAL COMPONENTS
FR2407805A1 (en) * 1977-11-02 1979-06-01 Hedrich Vakuumanlagen Wilhelm APPARATUS FOR FILLING ONE OR MORE MOLDS WITH A MOLDING RESIN OR OTHER SIMILAR LIQUIDS LIKELY TO BE MOLDED
GB2170142B (en) * 1984-12-21 1989-06-28 Nat Res Dev Moulding process
US4925161A (en) * 1984-12-21 1990-05-15 Allan Peter S Process for molding directionally-orientatable material using shear force
US5069840A (en) * 1990-02-16 1991-12-03 Husky Injection Molding Systems Ltd. Molding plastic articles
GB2251201A (en) * 1990-12-29 1992-07-01 Henry Tooze Compensating for article contraction during injection moulding cooling
US5156858A (en) * 1984-12-21 1992-10-20 National Research Development Corporation Apparatus for controlling the molding of a solid product in a mold cavity from molten material which is repeatedly moved within the mold cavity
US5234656A (en) * 1988-12-23 1993-08-10 Jv Kunststoffwerk Gmbh Process and device to prepare a mixture for use in manufacturing plastic moulded parts
US5260012A (en) * 1990-02-16 1993-11-09 Husky Injection Molding Systems Ltd. Molding plastic articles
US5494426A (en) * 1992-05-11 1996-02-27 Thermold Partners L.P. Vibrating wall surfaces for molding deformable materials
US5543092A (en) * 1993-10-18 1996-08-06 Solomat Partners, L.P. Method for exerting stress tensor to molding material
US6290893B1 (en) * 1994-02-18 2001-09-18 Rodney J. Groleau Method for improving knit line strength in polymeric materials

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5567434A (en) * 1978-11-15 1980-05-21 Toshiba Mach Co Ltd Constant pressure controlling device
JPS59131415A (en) * 1983-01-18 1984-07-28 Mitsubishi Plastics Ind Ltd Preparation of crystal resin platelike object
EP0210906A1 (en) * 1985-07-19 1987-02-04 Jean-Yves Maissiat Method for manufacturing plastics parts with great dimensions
FR2600586A2 (en) * 1986-06-03 1987-12-31 Maissiat Jean Yves Process enabling large-sized plastic components to be produced
DE3843250A1 (en) * 1988-12-22 1990-07-05 Jv Kunststoffwerk FINISHED MOLDED PART
US7025913B2 (en) * 2003-04-04 2006-04-11 Honeywell International Inc. Delivery of pitch/thermoplastic/thermoset resins in RTM systems

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2406294A1 (en) * 1977-10-13 1979-05-11 Siemens Ag DEVICE FOR THE MANUFACTURING OF MOLDED PARTS AND COATED AND SEALED ELECTRICAL COMPONENTS
FR2407805A1 (en) * 1977-11-02 1979-06-01 Hedrich Vakuumanlagen Wilhelm APPARATUS FOR FILLING ONE OR MORE MOLDS WITH A MOLDING RESIN OR OTHER SIMILAR LIQUIDS LIKELY TO BE MOLDED
US5160466A (en) * 1984-12-21 1992-11-03 National Research Development Corporation Method for molding a material
US5059368A (en) * 1984-12-21 1991-10-22 National Research Development Corporation Method for molding a material containing alignable constituents
US4925161A (en) * 1984-12-21 1990-05-15 Allan Peter S Process for molding directionally-orientatable material using shear force
US5156858A (en) * 1984-12-21 1992-10-20 National Research Development Corporation Apparatus for controlling the molding of a solid product in a mold cavity from molten material which is repeatedly moved within the mold cavity
GB2170142B (en) * 1984-12-21 1989-06-28 Nat Res Dev Moulding process
US5234656A (en) * 1988-12-23 1993-08-10 Jv Kunststoffwerk Gmbh Process and device to prepare a mixture for use in manufacturing plastic moulded parts
US5260012A (en) * 1990-02-16 1993-11-09 Husky Injection Molding Systems Ltd. Molding plastic articles
US5069840A (en) * 1990-02-16 1991-12-03 Husky Injection Molding Systems Ltd. Molding plastic articles
GB2251201A (en) * 1990-12-29 1992-07-01 Henry Tooze Compensating for article contraction during injection moulding cooling
US5494426A (en) * 1992-05-11 1996-02-27 Thermold Partners L.P. Vibrating wall surfaces for molding deformable materials
US5650104A (en) * 1992-05-11 1997-07-22 Thermold Partners L.P. Molding deformable materials with use of vibrating wall surfaces
US5543092A (en) * 1993-10-18 1996-08-06 Solomat Partners, L.P. Method for exerting stress tensor to molding material
US5605707A (en) * 1993-10-18 1997-02-25 Thermold Partners L.P. Molding apparatus and a method of using the same
US6290893B1 (en) * 1994-02-18 2001-09-18 Rodney J. Groleau Method for improving knit line strength in polymeric materials

Also Published As

Publication number Publication date
JPS5013456A (en) 1975-02-12
DE2321634A1 (en) 1974-11-14

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19940425