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 materialInfo
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
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.
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)
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)
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 |
-
1973
- 1973-04-28 DE DE19732321634 patent/DE2321634A1/en active Pending
-
1974
- 1974-04-26 GB GB1847374A patent/GB1463687A/en not_active Expired
- 1974-04-30 JP JP4862174A patent/JPS5013456A/ja active Pending
Cited By (16)
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 |