JPS56111653A - Reactive extrusion mold - Google Patents

Reactive extrusion mold

Info

Publication number
JPS56111653A
JPS56111653A JP1369280A JP1369280A JPS56111653A JP S56111653 A JPS56111653 A JP S56111653A JP 1369280 A JP1369280 A JP 1369280A JP 1369280 A JP1369280 A JP 1369280A JP S56111653 A JPS56111653 A JP S56111653A
Authority
JP
Japan
Prior art keywords
cavity
compressed air
air blast
blown
vent hole
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.)
Pending
Application number
JP1369280A
Other languages
Japanese (ja)
Inventor
Shozo Nakamura
Masayoshi Aoki
Masao Goto
Kenichi Waratani
Makoto Iida
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP1369280A priority Critical patent/JPS56111653A/en
Publication of JPS56111653A publication Critical patent/JPS56111653A/en
Pending 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
    • B29C67/246—Moulding high reactive monomers or prepolymers, e.g. by reaction injection moulding [RIM], liquid injection moulding [LIM]
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/10—Moulds or cores; Details thereof or accessories therefor with incorporated venting means

Landscapes

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

Abstract

PURPOSE:To remarkably improve an operational efficiency by a method wherein an opening part for a compressed air blast is installed at a cavity part of the inside of upper and lower molds and a residual burr in the mold is blown off with the compressed air. CONSTITUTION:A vent hole 16 for a compressed air blast is opened within a cavity 11 formed with a combination of upper and lower molds. And an extrusion molding material raw liquid is injected into the cavity 11 and a molding is performed with a chemical reaction and thereafter, a molding product is taken out. Next thereto, the compressed air from a compressor 19 is blown into the cavity 11 through an air hose 18, an air blast port 17 and the vent hole 16. By means of this compressed air, the residual burr attached to the inside of the cavity 11 is easily and rapidly eliminated.
JP1369280A 1980-02-08 1980-02-08 Reactive extrusion mold Pending JPS56111653A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1369280A JPS56111653A (en) 1980-02-08 1980-02-08 Reactive extrusion mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1369280A JPS56111653A (en) 1980-02-08 1980-02-08 Reactive extrusion mold

Publications (1)

Publication Number Publication Date
JPS56111653A true JPS56111653A (en) 1981-09-03

Family

ID=11840235

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1369280A Pending JPS56111653A (en) 1980-02-08 1980-02-08 Reactive extrusion mold

Country Status (1)

Country Link
JP (1) JPS56111653A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103624898A (en) * 2012-07-20 2014-03-12 名硕电脑(苏州)有限公司 Mold having chip removal function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103624898A (en) * 2012-07-20 2014-03-12 名硕电脑(苏州)有限公司 Mold having chip removal function
CN103624898B (en) * 2012-07-20 2016-05-04 名硕电脑(苏州)有限公司 There is the mould of chip removal function

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