JPH0126852B2 - - Google Patents

Info

Publication number
JPH0126852B2
JPH0126852B2 JP14359980A JP14359980A JPH0126852B2 JP H0126852 B2 JPH0126852 B2 JP H0126852B2 JP 14359980 A JP14359980 A JP 14359980A JP 14359980 A JP14359980 A JP 14359980A JP H0126852 B2 JPH0126852 B2 JP H0126852B2
Authority
JP
Japan
Prior art keywords
molding
molded product
primary
molded
mold
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
JP14359980A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5769007A (en
Inventor
Yukitomo Yuzuhara
Yoshiharu Hatakeyama
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.)
YKK Corp
Original Assignee
Yoshida Kogyo KK
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 Yoshida Kogyo KK filed Critical Yoshida Kogyo KK
Priority to JP14359980A priority Critical patent/JPS5769007A/ja
Publication of JPS5769007A publication Critical patent/JPS5769007A/ja
Publication of JPH0126852B2 publication Critical patent/JPH0126852B2/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
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1615—The materials being injected at different moulding stations
    • 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
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C2045/1682—Making multilayered or multicoloured articles preventing defects
    • 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
    • B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
    • 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
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C45/2701—Details not specific to hot or cold runner channels
    • B29C45/2708—Gates

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
JP14359980A 1980-10-16 1980-10-16 Double molding method and item molded thereby Granted JPS5769007A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14359980A JPS5769007A (en) 1980-10-16 1980-10-16 Double molding method and item molded thereby

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14359980A JPS5769007A (en) 1980-10-16 1980-10-16 Double molding method and item molded thereby

Publications (2)

Publication Number Publication Date
JPS5769007A JPS5769007A (en) 1982-04-27
JPH0126852B2 true JPH0126852B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1989-05-25

Family

ID=15342463

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14359980A Granted JPS5769007A (en) 1980-10-16 1980-10-16 Double molding method and item molded thereby

Country Status (1)

Country Link
JP (1) JPS5769007A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070194489A1 (en) * 2006-02-20 2007-08-23 Yoshida Industry Co., Ltd. Method of manufacturing resin molded product
FR2939710B1 (fr) * 2008-12-12 2013-07-05 Moulindustrie Systeme de moulage et d'emboitement.
DE102010033902A1 (de) * 2010-06-30 2012-01-05 Automotive Lighting Reutlingen Gmbh Verfahren zum Herstellen einer Kunststofflinse einer Kraftfahrzeugbeleuchtungseinrichtung, nach dem Verfahren hergestellte Kunststofflinse und Werkzeug zur Herstellung der Kunststofflinse
FR2981171B1 (fr) * 2011-10-06 2015-03-20 Valeo Vision Piece optique comprenant une ame et une pluralite de couches

Also Published As

Publication number Publication date
JPS5769007A (en) 1982-04-27

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