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GB1425837A - Plastic mouldings - Google Patents

Plastic mouldings

Info

Publication number
GB1425837A
GB1425837A GB2203973A GB2203973A GB1425837A GB 1425837 A GB1425837 A GB 1425837A GB 2203973 A GB2203973 A GB 2203973A GB 2203973 A GB2203973 A GB 2203973A GB 1425837 A GB1425837 A GB 1425837A
Authority
GB
United Kingdom
Prior art keywords
projection
coil
heat
mould part
transfer
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
GB2203973A
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.)
Sankey Holding Ltd
Aro Plastics Development Ltd
Original Assignee
GKN Sankey Ltd
Aro Plastics Development Ltd
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 GKN Sankey Ltd, Aro Plastics Development Ltd filed Critical GKN Sankey Ltd
Priority to GB2203973A priority Critical patent/GB1425837A/en
Priority to JP5172474A priority patent/JPS5032254A/ja
Publication of GB1425837A publication Critical patent/GB1425837A/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
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14065—Positioning or centering articles in the mould
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/52—Heating or cooling
    • 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
    • B29C45/72—Heating or cooling
    • B29C45/73—Heating or cooling of the mould
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C2035/0211—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould resistance heating
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0811—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using induction
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
    • B29C35/041—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using liquids

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

1425837 Injection moulding apparatus GKN SANKEY Ltd and ARO PLASTICS DEVELOPMENT Ltd 3 May 1974 [9 May 1973] 22039/73 Heading B5A The invention relates to apparatus for moulding plastics material about a rigid reinforcement, the-apparatus being of the kind compris. ing projections 21 which are movable between operative positions in which they project into a mould cavity 23 to locate the reinforcement therein and inoperative positions in which they are retracted from the cavity, first means to control transfer of heat through the walls of the cavity, and second means to effect transfer of heat along the projections in a direction opposite to the former transfer. According to the invention the second means comprises a first element 27 arranged to receive energy from an external source and mounted in a fixed position on one mould part, and a second element 25 constituting, or carried by, the projection, the elements 25, 27 being such that transfer of energy can take place from the first element to the second element to heat the projection without any direct physical connection between the elements. As shown in Fig. 2 the projection 21 is slidable in mould part 20 and provided with an internal electric resistance heater 24 connected to the secondary 25 of a transformer whose primary 27 is mounted in a bore 28 in mould part 20. In Fig. 1 (not shown) the projection (11) is heated by an induction winding (18) in a bore (17) in the mould part. In a modification of the Fig. 1 arrangement a heat pipe may be provided within the projection so that one end is heated by the coil (18). The coil (18) may be replaced by an electric resistance coil or a coil through which hot fluid is passed. In Fig. 3 (not shown) the projection (29) contains a heat pipe (30) containing a wick (31). One end of the heat pipe is heated by a coil (33) connected to the secondary (34) of a transformer.
GB2203973A 1973-05-09 1973-05-09 Plastic mouldings Expired GB1425837A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2203973A GB1425837A (en) 1973-05-09 1973-05-09 Plastic mouldings
JP5172474A JPS5032254A (en) 1973-05-09 1974-05-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2203973A GB1425837A (en) 1973-05-09 1973-05-09 Plastic mouldings

Publications (1)

Publication Number Publication Date
GB1425837A true GB1425837A (en) 1976-02-18

Family

ID=10172908

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2203973A Expired GB1425837A (en) 1973-05-09 1973-05-09 Plastic mouldings

Country Status (2)

Country Link
JP (1) JPS5032254A (en)
GB (1) GB1425837A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4439438C1 (en) * 1994-11-04 1995-11-30 Ferromatik Milacron Maschinenb Multicomponent pressure injection mouldings with good bonding
US5776412A (en) * 1995-08-31 1998-07-07 Battenfeld Gmbh Method and apparatus for producing plastic objects with solid sections and hollow sections
US6923632B2 (en) 1995-05-19 2005-08-02 Denso Corporation Method and apparatus for forming a casting which includes an insert
DE102004010904A1 (en) * 2004-03-05 2005-09-22 Siemens Ag Method for producing a device for detecting the movement of a movable component
DE10326794B4 (en) * 2002-06-26 2012-07-26 Eichsfelder Schraubenwerk Gmbh Method for molding a molded part

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2260344T3 (en) * 1997-06-11 2006-11-01 Linpac Materials Handling Limited FOLDABLE PACKAGE.
CN102407594B (en) * 2010-09-17 2014-11-05 本田技研工业株式会社 Molding apparatus and method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4439438C1 (en) * 1994-11-04 1995-11-30 Ferromatik Milacron Maschinenb Multicomponent pressure injection mouldings with good bonding
US6923632B2 (en) 1995-05-19 2005-08-02 Denso Corporation Method and apparatus for forming a casting which includes an insert
DE19620002B4 (en) * 1995-05-19 2010-07-29 DENSO CORPORATION, Kariya-shi A method of forming an injection molded part containing an insert
US5776412A (en) * 1995-08-31 1998-07-07 Battenfeld Gmbh Method and apparatus for producing plastic objects with solid sections and hollow sections
US6143237A (en) * 1995-08-31 2000-11-07 Battenfeld Gmbh Method and apparatus for producing plastic objects with solid sections and hollow sections
DE10326794B4 (en) * 2002-06-26 2012-07-26 Eichsfelder Schraubenwerk Gmbh Method for molding a molded part
DE102004010904A1 (en) * 2004-03-05 2005-09-22 Siemens Ag Method for producing a device for detecting the movement of a movable component

Also Published As

Publication number Publication date
JPS5032254A (en) 1975-03-28

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee