JPS5789941A - Injection molding method for cross-linkable high polymeric material - Google Patents

Injection molding method for cross-linkable high polymeric material

Info

Publication number
JPS5789941A
JPS5789941A JP16712180A JP16712180A JPS5789941A JP S5789941 A JPS5789941 A JP S5789941A JP 16712180 A JP16712180 A JP 16712180A JP 16712180 A JP16712180 A JP 16712180A JP S5789941 A JPS5789941 A JP S5789941A
Authority
JP
Japan
Prior art keywords
cross
period
temperature
injection
resin
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
JP16712180A
Other languages
Japanese (ja)
Other versions
JPS5845944B2 (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 JP16712180A priority Critical patent/JPS5845944B2/en
Publication of JPS5789941A publication Critical patent/JPS5789941A/en
Publication of JPS5845944B2 publication Critical patent/JPS5845944B2/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/02—Conditioning or physical treatment of the material to be shaped by heating

Abstract

PURPOSE:To shorten the period of time required for cross-linking under heating and shorten a molding cycle by a method wherein a resin material to be fed into a cavity is heated so that the temperature of the resin is raised gradually from the starting period to the finishing period of the feeding. CONSTITUTION:A tubular heater 11 is electrically and automatically controlled to ensure that a cross-linkable high polymeric material to be fed into the cavity 8 is heated so that its temperature is raised gradually from the starting period to the finishing period of the feeding, thereby shortening the period of time required for cross-linking. When the temperature of the resin is raised with a substantially linear gradient from a temperature (e.g., 180 deg.C) at which the resin material can be cross-linked in a short period of time, e.g. 13 seconds, of the start of injection to a temperature (e.g., 200 deg.C or higher) at which the material can be cross-linked in a shorter period of time, e.g. 3 seconds, of the finish of injection, the whole material in the cavity can be simultaneously cross-linked in only 3 seconds after the injection is completed.
JP16712180A 1980-11-27 1980-11-27 Injection molding method for crosslinkable polymer materials Expired JPS5845944B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16712180A JPS5845944B2 (en) 1980-11-27 1980-11-27 Injection molding method for crosslinkable polymer materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16712180A JPS5845944B2 (en) 1980-11-27 1980-11-27 Injection molding method for crosslinkable polymer materials

Publications (2)

Publication Number Publication Date
JPS5789941A true JPS5789941A (en) 1982-06-04
JPS5845944B2 JPS5845944B2 (en) 1983-10-13

Family

ID=15843821

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16712180A Expired JPS5845944B2 (en) 1980-11-27 1980-11-27 Injection molding method for crosslinkable polymer materials

Country Status (1)

Country Link
JP (1) JPS5845944B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01215526A (en) * 1988-02-24 1989-08-29 Meiki Co Ltd Heating method for heating cylinder of injection device and device there

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01215526A (en) * 1988-02-24 1989-08-29 Meiki Co Ltd Heating method for heating cylinder of injection device and device there

Also Published As

Publication number Publication date
JPS5845944B2 (en) 1983-10-13

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