JPS57105334A - Rim molded article and method for producing the same - Google Patents

Rim molded article and method for producing the same

Info

Publication number
JPS57105334A
JPS57105334A JP55182083A JP18208380A JPS57105334A JP S57105334 A JPS57105334 A JP S57105334A JP 55182083 A JP55182083 A JP 55182083A JP 18208380 A JP18208380 A JP 18208380A JP S57105334 A JPS57105334 A JP S57105334A
Authority
JP
Japan
Prior art keywords
film
mold
molded article
rim molded
plastic film
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
JP55182083A
Other languages
Japanese (ja)
Inventor
Shozo Nakamura
Masao Goto
Ataru Yokono
Makoto Iida
Yasuo Hiyoshi
Kenichi Waratani
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 JP55182083A priority Critical patent/JPS57105334A/en
Publication of JPS57105334A publication Critical patent/JPS57105334A/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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/78—Moulding material on one side only of the preformed part
    • 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
    • B29C33/12—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
    • B29C33/14—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels against the mould wall
    • B29C33/16—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels against the mould wall using magnetic means
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/58—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres
    • 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
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14065—Positioning or centering articles in the mould
    • B29C2045/14155—Positioning or centering articles in the mould using vacuum or suction

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To produce an RIM molded article having a surface covered with a plastic film by a method wherein a resin stock solution is poured into a mold on which a plastic film is placed. CONSTITUTION:The plastic film 16 is placed on a lower mold 3A, the film 16 is closely adhered to the mold 3A by applying a vacuum through minute holes 18 provided in the part of the mold 3A beneath the film 16, and then a two-part reactive resin stock solution is injected (RIM molded) into the cavity 9. Accordingly, since a low-density core layer 20b covered with a high-density skin layer 20a is further covered with the plastic film 16, an RIM molded article 20A excellent in appearance can be obtained. In addition, when a magnetic powder is mixed into the film 6 and a magnet 17 is embedded in the lower mold 3A, the adhesion of the film 16 to the mold 3A can be further enhanced.
JP55182083A 1980-12-24 1980-12-24 Rim molded article and method for producing the same Pending JPS57105334A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55182083A JPS57105334A (en) 1980-12-24 1980-12-24 Rim molded article and method for producing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55182083A JPS57105334A (en) 1980-12-24 1980-12-24 Rim molded article and method for producing the same

Publications (1)

Publication Number Publication Date
JPS57105334A true JPS57105334A (en) 1982-06-30

Family

ID=16112053

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55182083A Pending JPS57105334A (en) 1980-12-24 1980-12-24 Rim molded article and method for producing the same

Country Status (1)

Country Link
JP (1) JPS57105334A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6444106U (en) * 1987-09-11 1989-03-16
JPH0199822A (en) * 1987-10-13 1989-04-18 Mitsubishi Gas Chem Co Inc Manufacture of synthetic resin molding
WO2006038670A1 (en) * 2004-10-06 2006-04-13 Komatsu Ltd. Resin molded article and method for producing resin molded article

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6444106U (en) * 1987-09-11 1989-03-16
JPH0199822A (en) * 1987-10-13 1989-04-18 Mitsubishi Gas Chem Co Inc Manufacture of synthetic resin molding
WO2006038670A1 (en) * 2004-10-06 2006-04-13 Komatsu Ltd. Resin molded article and method for producing resin molded article
JPWO2006038670A1 (en) * 2004-10-06 2008-05-15 株式会社小松製作所 Resin molded product and method for producing resin molded product

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