JPS57187214A - Manufacture of heat-shrinkable tube - Google Patents

Manufacture of heat-shrinkable tube

Info

Publication number
JPS57187214A
JPS57187214A JP7202281A JP7202281A JPS57187214A JP S57187214 A JPS57187214 A JP S57187214A JP 7202281 A JP7202281 A JP 7202281A JP 7202281 A JP7202281 A JP 7202281A JP S57187214 A JPS57187214 A JP S57187214A
Authority
JP
Japan
Prior art keywords
tube
inside diameter
heat
crosslinking
larger
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
JP7202281A
Other languages
Japanese (ja)
Inventor
Shiro Hasegawa
Hiromi Tsuda
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.)
SWCC Corp
Original Assignee
Showa Electric Wire and Cable Co
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 Showa Electric Wire and Cable Co filed Critical Showa Electric Wire and Cable Co
Priority to JP7202281A priority Critical patent/JPS57187214A/en
Publication of JPS57187214A publication Critical patent/JPS57187214A/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
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/003—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride

Landscapes

  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

PURPOSE:To obtain said tube of large shrinkage factor and excellent mechanical properties, by crosslinking chemically the raw tube composed of polyvinylchloride incorporated with a crosslinking agent, then heat-expanding it to a larger inside diameter then a finished inside diameter and cooling under an expanded state. CONSTITUTION:By crosslinking chemically the raw tube which is composed of polyvinylchloride incorporated with a crosslinking agent as a main component and contains filler plasticizer, etc., then heat-expanding it to a larger inside diameter than a finished inside diameter and cooling under an expanded state an aimed tube is obtained. EFFECT:A shrinkage factor is larger even in the case of a large diameter and a thick wall. USE:It is applicable to a cable joint and the corrosionproof tube of a large diameter steel pipe, too.
JP7202281A 1981-05-13 1981-05-13 Manufacture of heat-shrinkable tube Pending JPS57187214A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7202281A JPS57187214A (en) 1981-05-13 1981-05-13 Manufacture of heat-shrinkable tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7202281A JPS57187214A (en) 1981-05-13 1981-05-13 Manufacture of heat-shrinkable tube

Publications (1)

Publication Number Publication Date
JPS57187214A true JPS57187214A (en) 1982-11-17

Family

ID=13477361

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7202281A Pending JPS57187214A (en) 1981-05-13 1981-05-13 Manufacture of heat-shrinkable tube

Country Status (1)

Country Link
JP (1) JPS57187214A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS602337A (en) * 1983-06-21 1985-01-08 Sumitomo Electric Ind Ltd Manufacture of thermally shrinkable tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS602337A (en) * 1983-06-21 1985-01-08 Sumitomo Electric Ind Ltd Manufacture of thermally shrinkable tube

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