GB772424A - Improvements in or relating to, extrusion or injection moulding presses and other apparatus comprising a heated cylinder - Google Patents

Improvements in or relating to, extrusion or injection moulding presses and other apparatus comprising a heated cylinder

Info

Publication number
GB772424A
GB772424A GB418652A GB418652A GB772424A GB 772424 A GB772424 A GB 772424A GB 418652 A GB418652 A GB 418652A GB 418652 A GB418652 A GB 418652A GB 772424 A GB772424 A GB 772424A
Authority
GB
United Kingdom
Prior art keywords
shell
cylinder
units
injection moulding
closed
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
GB418652A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB418652A priority Critical patent/GB772424A/en
Publication of GB772424A publication Critical patent/GB772424A/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
    • B29C45/74—Heating or cooling of the injection unit

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • General Induction Heating (AREA)

Abstract

772,424. Induction heating. GILBERT, N. W. Feb. 18, 1953 [Feb. 18, 1952] No. 4186/52. Class 39(3) The cylinder 1 of an injection moulding press or of other apparatus is of steel or other magnetizable material and is heated by three induction heating units, each unit comprising a multi-turn insulated coil 4 surrounding the cylinder and enclosed within a magnetizable shell 5. The shell of each unit has an open end which abuts against, and is closed by, the closed end of an adjacent shell or a part of the apparatus; the shell also has an open side which seats upon and is closed by the cylinder wall so that the magnetic flux path passes through the cylinder wall. The units are secured between flanges 1a and 7 and are connected electrically in series or parallel, and their heating effect is controlled by one or .more thermostats. The coils of the units may have different numbers of turns in order to vary the heating along the cylinder wall.
GB418652A 1952-02-18 1952-02-18 Improvements in or relating to, extrusion or injection moulding presses and other apparatus comprising a heated cylinder Expired GB772424A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB418652A GB772424A (en) 1952-02-18 1952-02-18 Improvements in or relating to, extrusion or injection moulding presses and other apparatus comprising a heated cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB418652A GB772424A (en) 1952-02-18 1952-02-18 Improvements in or relating to, extrusion or injection moulding presses and other apparatus comprising a heated cylinder

Publications (1)

Publication Number Publication Date
GB772424A true GB772424A (en) 1957-04-10

Family

ID=9772329

Family Applications (1)

Application Number Title Priority Date Filing Date
GB418652A Expired GB772424A (en) 1952-02-18 1952-02-18 Improvements in or relating to, extrusion or injection moulding presses and other apparatus comprising a heated cylinder

Country Status (1)

Country Link
GB (1) GB772424A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4560521A (en) * 1984-03-28 1985-12-24 Northern Telecom Limited Maintaining homogeneity in a mixture
WO1993019843A1 (en) * 1992-03-31 1993-10-14 Santrade Ltd. Drop-producing device
WO2003001850A1 (en) * 2001-06-26 2003-01-03 Husky Injection Molding Systems Ltd. Method and apparatus for temperature control of an object
US6717118B2 (en) 2001-06-26 2004-04-06 Husky Injection Molding Systems, Ltd Apparatus for inductive and resistive heating of an object
US7034263B2 (en) 2003-07-02 2006-04-25 Itherm Technologies, Lp Apparatus and method for inductive heating
US7279665B2 (en) 2003-07-02 2007-10-09 Itherm Technologies, Lp Method for delivering harmonic inductive power
US8007709B2 (en) 2007-08-27 2011-08-30 Xaloy, Incorporated Synchronized temperature contol of plastic processing equipment
PL424979A1 (en) * 2018-03-21 2019-09-23 Instytut Inżynierii Materiałów Polimerowych I Barwników Screw extruder

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4560521A (en) * 1984-03-28 1985-12-24 Northern Telecom Limited Maintaining homogeneity in a mixture
WO1993019843A1 (en) * 1992-03-31 1993-10-14 Santrade Ltd. Drop-producing device
US5401938A (en) * 1992-03-31 1995-03-28 Santrade Ltd. Rotary drop former with electrical inductive heater
US7041944B2 (en) 2001-06-26 2006-05-09 Husky Injection Molding Systems, Ltd. Apparatus for inductive and resistive heating of an object
WO2003001850A1 (en) * 2001-06-26 2003-01-03 Husky Injection Molding Systems Ltd. Method and apparatus for temperature control of an object
US6717118B2 (en) 2001-06-26 2004-04-06 Husky Injection Molding Systems, Ltd Apparatus for inductive and resistive heating of an object
US6781100B2 (en) 2001-06-26 2004-08-24 Husky Injection Molding Systems, Ltd. Method for inductive and resistive heating of an object
US7034263B2 (en) 2003-07-02 2006-04-25 Itherm Technologies, Lp Apparatus and method for inductive heating
US7034264B2 (en) 2003-07-02 2006-04-25 Itherm Technologies, Lp Heating systems and methods utilizing high frequency harmonics
US7279665B2 (en) 2003-07-02 2007-10-09 Itherm Technologies, Lp Method for delivering harmonic inductive power
US7652231B2 (en) 2003-07-02 2010-01-26 Itherm Technologies, Lp Apparatus for delivering harmonic inductive power
US7767941B2 (en) 2003-07-02 2010-08-03 Valery Kagan Inductive heating method utilizing high frequency harmonics and intermittent cooling
US8007709B2 (en) 2007-08-27 2011-08-30 Xaloy, Incorporated Synchronized temperature contol of plastic processing equipment
PL424979A1 (en) * 2018-03-21 2019-09-23 Instytut Inżynierii Materiałów Polimerowych I Barwników Screw extruder

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