JPS57207623A - Crosslinking and molding of macromolecular material - Google Patents

Crosslinking and molding of macromolecular material

Info

Publication number
JPS57207623A
JPS57207623A JP9090581A JP9090581A JPS57207623A JP S57207623 A JPS57207623 A JP S57207623A JP 9090581 A JP9090581 A JP 9090581A JP 9090581 A JP9090581 A JP 9090581A JP S57207623 A JPS57207623 A JP S57207623A
Authority
JP
Japan
Prior art keywords
voltage
cavity
path
heating
crosslinked
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.)
Granted
Application number
JP9090581A
Other languages
Japanese (ja)
Other versions
JPS6241452B2 (en
Inventor
Takashi Miura
Isago Miura
Kentaro Mori
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.)
Miura Takashi
Original Assignee
Miura Takashi
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 Miura Takashi filed Critical Miura Takashi
Priority to JP9090581A priority Critical patent/JPS57207623A/en
Publication of JPS57207623A publication Critical patent/JPS57207623A/en
Publication of JPS6241452B2 publication Critical patent/JPS6241452B2/ja
Granted 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)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE: The temperature of the material to be molded is gradually raised as the voltage applied to the path of the material for heating is increased with the movement of the material and the material is sent into the cavity and crosslinked immediately after the cavity is filled, thus producing good-quality crosslinked moldings of macromolecular material.
CONSTITUTION: A heating voltage is applied to the path for heating the material to be molded, where the path is made of a relatively narrow metallic pipe, so that the voltage corresponds to the difference between the target voltage and the voltage meeting the temperature change caused by the pressure drop of the material from the path 8 to the cavity 15. And the target voltage is increased by an electric or electronic control from the beginning to the end of the material transfer to raise the temperature gradually until the cavity is filled with the material. Then, immediately the whole part of the material is crosslinked almost at a time.
COPYRIGHT: (C)1982,JPO&Japio
JP9090581A 1981-06-15 1981-06-15 Crosslinking and molding of macromolecular material Granted JPS57207623A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9090581A JPS57207623A (en) 1981-06-15 1981-06-15 Crosslinking and molding of macromolecular material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9090581A JPS57207623A (en) 1981-06-15 1981-06-15 Crosslinking and molding of macromolecular material

Publications (2)

Publication Number Publication Date
JPS57207623A true JPS57207623A (en) 1982-12-20
JPS6241452B2 JPS6241452B2 (en) 1987-09-03

Family

ID=14011413

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9090581A Granted JPS57207623A (en) 1981-06-15 1981-06-15 Crosslinking and molding of macromolecular material

Country Status (1)

Country Link
JP (1) JPS57207623A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0744415B2 (en) * 1984-10-11 1995-05-15 日産自動車株式会社 Vehicle audio system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49119974A (en) * 1973-03-22 1974-11-15

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49119974A (en) * 1973-03-22 1974-11-15

Also Published As

Publication number Publication date
JPS6241452B2 (en) 1987-09-03

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