JPS54132661A - Transfer molding of thermosetting resin - Google Patents

Transfer molding of thermosetting resin

Info

Publication number
JPS54132661A
JPS54132661A JP4023178A JP4023178A JPS54132661A JP S54132661 A JPS54132661 A JP S54132661A JP 4023178 A JP4023178 A JP 4023178A JP 4023178 A JP4023178 A JP 4023178A JP S54132661 A JPS54132661 A JP S54132661A
Authority
JP
Japan
Prior art keywords
transfer molding
plunger
coated
molding machine
thermosetting 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.)
Pending
Application number
JP4023178A
Other languages
Japanese (ja)
Inventor
Aizo Kaneda
Susumu Tsujiku
Junichi Saeki
Shigeharu Tsunoda
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 JP4023178A priority Critical patent/JPS54132661A/en
Publication of JPS54132661A publication Critical patent/JPS54132661A/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
    • 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
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/58—Details
    • B29C45/586—Injection or transfer plungers
    • 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
    • B29C45/02—Transfer moulding, i.e. transferring the required volume of moulding material by a plunger from a "shot" cavity into a mould cavity

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)

Abstract

PURPOSE:To prevent the abrasion of the plunger of a transfer molding machine, and to prevent the burr of the transfer molded article, by using a transfer molding machine having a plunger coated its sliding surface to the sleeve with a specific hardened film. CONSTITUTION:The plunger 7 of a transfer molding machine is coated with a coating composition prepared by dispersing organic or inorganic fine powder having lubricating action, e.g. Teflon, molybdenum disulfide, graphite, etc., in a mixture of a thermosetting resin and a solvent, and cured to form a cured film 15. A molten resin 6 is molded using the coated plunger 7.
JP4023178A 1978-04-07 1978-04-07 Transfer molding of thermosetting resin Pending JPS54132661A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4023178A JPS54132661A (en) 1978-04-07 1978-04-07 Transfer molding of thermosetting resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4023178A JPS54132661A (en) 1978-04-07 1978-04-07 Transfer molding of thermosetting resin

Publications (1)

Publication Number Publication Date
JPS54132661A true JPS54132661A (en) 1979-10-15

Family

ID=12574950

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4023178A Pending JPS54132661A (en) 1978-04-07 1978-04-07 Transfer molding of thermosetting resin

Country Status (1)

Country Link
JP (1) JPS54132661A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5864426U (en) * 1981-10-28 1983-04-30 日本電気株式会社 Transfer resin molding equipment
JPS62206842A (en) * 1986-03-07 1987-09-11 Shin Etsu Chem Co Ltd Transfer molding machine for resin seal type semiconductor device
US8029720B2 (en) * 2005-11-25 2011-10-04 Dai-Ichi Seiko Co., Ltd. Resin sealing apparatus and resin sealing method
CN103786319A (en) * 2012-10-31 2014-05-14 山田尖端科技株式会社 Plunger, resin molding machine and method of resin molding

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51140842A (en) * 1975-05-16 1976-12-04 M & T Chemicals Inc Bright nickelliron plating

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51140842A (en) * 1975-05-16 1976-12-04 M & T Chemicals Inc Bright nickelliron plating

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5864426U (en) * 1981-10-28 1983-04-30 日本電気株式会社 Transfer resin molding equipment
JPS6339053Y2 (en) * 1981-10-28 1988-10-14
JPS62206842A (en) * 1986-03-07 1987-09-11 Shin Etsu Chem Co Ltd Transfer molding machine for resin seal type semiconductor device
JPH0416015B2 (en) * 1986-03-07 1992-03-19 Shinetsu Chem Ind Co
US8029720B2 (en) * 2005-11-25 2011-10-04 Dai-Ichi Seiko Co., Ltd. Resin sealing apparatus and resin sealing method
CN103786319A (en) * 2012-10-31 2014-05-14 山田尖端科技株式会社 Plunger, resin molding machine and method of resin molding

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