JPS5798319A - Manufacture of pipe lined with synthetic resin - Google Patents

Manufacture of pipe lined with synthetic resin

Info

Publication number
JPS5798319A
JPS5798319A JP17607680A JP17607680A JPS5798319A JP S5798319 A JPS5798319 A JP S5798319A JP 17607680 A JP17607680 A JP 17607680A JP 17607680 A JP17607680 A JP 17607680A JP S5798319 A JPS5798319 A JP S5798319A
Authority
JP
Japan
Prior art keywords
pipe
synthetic resin
grooves
metallic
outer periphery
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.)
Granted
Application number
JP17607680A
Other languages
Japanese (ja)
Other versions
JPH0144496B2 (en
Inventor
Shuji Hiramatsu
Kenichi Morikawa
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.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical Co 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 Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP17607680A priority Critical patent/JPS5798319A/en
Publication of JPS5798319A publication Critical patent/JPS5798319A/en
Publication of JPH0144496B2 publication Critical patent/JPH0144496B2/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
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/06—Making preforms having internal stresses, e.g. plastic memory
    • B29C61/0608—Making preforms having internal stresses, e.g. plastic memory characterised by the configuration or structure of the preforms
    • B29C61/0616—Making preforms having internal stresses, e.g. plastic memory characterised by the configuration or structure of the preforms layered or partially layered preforms, e.g. preforms with layers of adhesive or sealing compositions
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/38—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor by liberation of internal stresses
    • B29C63/46—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor by liberation of internal stresses of internal surfaces

Abstract

PURPOSE:To obtain the captioned pipe having a synthetic resin lining firmly fixed to the internal surface thereof by a method wherein a thermally expansive synthetic resin pipe having on its outer periphery an adhesive layer and a plurality of grooves extending in the axial direction is inserted into a metallic pipe and the two pipes are heated. CONSTITUTION:The synthetic resin material such as polyethylene is extruded by a pipe shaping mold and the extruded tubular product is foamed by reducing its diameter by use of a foaming mold to thereby produce the thermally expensive synthetic resin pipe 1 having on its outer periphery the grooves 3 extending in the axial direction. Next, an adhesive (preferably of hot melting type) is coated on the outer periphery of the pipe 1 to provide the adhesive layer 2, the pipe 1 is inserted into the metallic pipe and the metallic pipe is heated externally so that the adhesive layer 2 on the pipe 1 is fused to adhere to the internal peripheral surface of the metallic pipe. At the same time, the grooves 3 are restored to their original state so as to remove air therefrom for the strengthening of the adhesion of the pipe 1 to the metallic pipe. As regards the grooves 3, it is desirable that they are arranged uniformly in the circumferential direction of the pipe 1 and each of them have a sectional configuration similar to a depressed equilateral triangle.
JP17607680A 1980-12-12 1980-12-12 Manufacture of pipe lined with synthetic resin Granted JPS5798319A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17607680A JPS5798319A (en) 1980-12-12 1980-12-12 Manufacture of pipe lined with synthetic resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17607680A JPS5798319A (en) 1980-12-12 1980-12-12 Manufacture of pipe lined with synthetic resin

Publications (2)

Publication Number Publication Date
JPS5798319A true JPS5798319A (en) 1982-06-18
JPH0144496B2 JPH0144496B2 (en) 1989-09-28

Family

ID=16007294

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17607680A Granted JPS5798319A (en) 1980-12-12 1980-12-12 Manufacture of pipe lined with synthetic resin

Country Status (1)

Country Link
JP (1) JPS5798319A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0082022A2 (en) * 1981-12-15 1983-06-22 Raychem Limited Dimensionally-recoverable article
JPH02176917A (en) * 1988-12-28 1990-07-10 Matsushita Electric Ind Co Ltd Resetting circuit of microcomputer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0082022A2 (en) * 1981-12-15 1983-06-22 Raychem Limited Dimensionally-recoverable article
JPH02176917A (en) * 1988-12-28 1990-07-10 Matsushita Electric Ind Co Ltd Resetting circuit of microcomputer

Also Published As

Publication number Publication date
JPH0144496B2 (en) 1989-09-28

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