GB634643A - An improved method of and apparatus for heating granular moulding material - Google Patents

An improved method of and apparatus for heating granular moulding material

Info

Publication number
GB634643A
GB634643A GB16791/46A GB1679146A GB634643A GB 634643 A GB634643 A GB 634643A GB 16791/46 A GB16791/46 A GB 16791/46A GB 1679146 A GB1679146 A GB 1679146A GB 634643 A GB634643 A GB 634643A
Authority
GB
United Kingdom
Prior art keywords
tube
heated
temperature
june
moulding
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
GB16791/46A
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.)
Cutler Hammer Europe Ltd
Original Assignee
Igranic Electric Co 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 Igranic Electric Co Ltd filed Critical Igranic Electric Co Ltd
Publication of GB634643A publication Critical patent/GB634643A/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
    • B29C45/72—Heating or cooling

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

634,643. Injection-moulding. IGRANIC ELECTRIC CO., Ltd. June 3, 1946, No. 16791. Convention date, June 2, 1945. [Class 87 (ii)] [Also in Group XI] Granulated thermoplastic and thermosetting moulding material is heated to a temperature rendering it substantially ready for immediate use in a transfer moulding machine, by allowing it to fall in a thin stream 6 through a vertical and electrically heated tubular metal member 5. The tube 5 is preferably about sixteen foot long and may be heated by the passage of current therethrough. The tube 5 is surrounded by an internally polished copper tube 9 having a telescoped extension 15 attached to but insulated from its lower end, the extremities of the concentric tubes being sealed together and the resulting space between them evacuated. The heated material, at an average temperature of 400‹ F., collects in a horizontal cylinder 18 from which it is forced into a die 24 and 25. The granules are preferably of approximately rice size and the temperature of the tube 5 is about 1,000‹ F.
GB16791/46A 1945-06-02 1946-06-03 An improved method of and apparatus for heating granular moulding material Expired GB634643A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US634643XA 1945-06-02 1945-06-02

Publications (1)

Publication Number Publication Date
GB634643A true GB634643A (en) 1950-03-22

Family

ID=22049378

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16791/46A Expired GB634643A (en) 1945-06-02 1946-06-03 An improved method of and apparatus for heating granular moulding material

Country Status (1)

Country Link
GB (1) GB634643A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124133A (en) * 1982-06-05 1984-02-15 Ward And Goldstone Plc Apparatus for and method of preheating moulding material
GB2147778A (en) * 1983-09-29 1985-05-15 Ewikon Entwicklung Konstr Electrically operated heating assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124133A (en) * 1982-06-05 1984-02-15 Ward And Goldstone Plc Apparatus for and method of preheating moulding material
GB2147778A (en) * 1983-09-29 1985-05-15 Ewikon Entwicklung Konstr Electrically operated heating assembly

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