JPS61283415A - Manufacture of wear resistant double pipe - Google Patents

Manufacture of wear resistant double pipe

Info

Publication number
JPS61283415A
JPS61283415A JP12266285A JP12266285A JPS61283415A JP S61283415 A JPS61283415 A JP S61283415A JP 12266285 A JP12266285 A JP 12266285A JP 12266285 A JP12266285 A JP 12266285A JP S61283415 A JPS61283415 A JP S61283415A
Authority
JP
Japan
Prior art keywords
pipe
pipes
yield point
wear resistant
double pipe
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
JP12266285A
Other languages
Japanese (ja)
Other versions
JPH0576378B2 (en
Inventor
Fumiyoshi Kanetani
Shigetomo Matsui
Toshio Atsuta
Eisuke Mori
Original Assignee
Kawasaki Heavy Ind 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 Kawasaki Heavy Ind Ltd filed Critical Kawasaki Heavy Ind Ltd
Priority to JP60122662A priority Critical patent/JPH0576378B2/ja
Publication of JPS61283415A publication Critical patent/JPS61283415A/en
Publication of JPH0576378B2 publication Critical patent/JPH0576378B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE: To form a double pipe having outside wear resistance easily and at a low-cost by superposing an outer pipe of high yield point and high wear resistance on an inner pipe of low yield point facing each other, changing its radius to fasten both the pipes, then expanding the radii of both pipes to subject to auto-frettage.
CONSTITUTION: The outer pipe 2 made of high yield point and high wear resistant metal such as chrome steel is superposed on the inner pipe made of low yield point metal such as high-carbon steel facing each other. After that, a die 3 is drawn out inside the inner pipe 1 in the arrow direction expanding the radius of inner pipe 1 and both the pipes are fastened. Then applying said similar method using the die 3, both the pipes 1, 2 are expanded at least over the elastic limit of inner pipe 1 and in the fracture limit of the outer pipe 2 and subjected to auto-frettage. In this way, the outer pipe 2 is supported firmly with the inner pipe 1 by the difference of elastic recede between the pipes 1, 2 and in all, the wear resistant double pipe having high toughness is obtained.
COPYRIGHT: (C)1986,JPO&Japio
JP60122662A 1985-06-07 1985-06-07 Expired - Lifetime JPH0576378B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60122662A JPH0576378B2 (en) 1985-06-07 1985-06-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60122662A JPH0576378B2 (en) 1985-06-07 1985-06-07

Publications (2)

Publication Number Publication Date
JPS61283415A true JPS61283415A (en) 1986-12-13
JPH0576378B2 JPH0576378B2 (en) 1993-10-22

Family

ID=14841527

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60122662A Expired - Lifetime JPH0576378B2 (en) 1985-06-07 1985-06-07

Country Status (1)

Country Link
JP (1) JPH0576378B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101309164B1 (en) * 2013-05-13 2013-09-23 영동주식회사 Manufacturing method of clad pipe
WO2013175486A1 (en) * 2012-03-13 2013-11-28 Innoventive Industries Ltd Method for producing "bi-metal" (ferrous/non-ferrous) tube
WO2014169367A3 (en) * 2013-08-23 2014-12-31 Vallourec Tubos Do Brasil S.A. Process for producing a multilayer pipe by expansion and multilayer pipe produced by said process

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4959764A (en) * 1972-10-16 1974-06-10
JPS57149428A (en) * 1981-03-13 1982-09-16 Hitachi Ltd Heat-treating method for double pipe structure

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4959764A (en) * 1972-10-16 1974-06-10
JPS57149428A (en) * 1981-03-13 1982-09-16 Hitachi Ltd Heat-treating method for double pipe structure

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013175486A1 (en) * 2012-03-13 2013-11-28 Innoventive Industries Ltd Method for producing "bi-metal" (ferrous/non-ferrous) tube
KR101309164B1 (en) * 2013-05-13 2013-09-23 영동주식회사 Manufacturing method of clad pipe
WO2014169367A3 (en) * 2013-08-23 2014-12-31 Vallourec Tubos Do Brasil S.A. Process for producing a multilayer pipe by expansion and multilayer pipe produced by said process
CN105705261A (en) * 2013-08-23 2016-06-22 瓦卢瑞克图沃斯巴西股份公司 Process for producing a multilayer pipe by expansion and multilayer pipe produced by said process
JP2016534880A (en) * 2013-08-23 2016-11-10 ヴァルレック・トゥーボス・ド・ブラジル・ソシエダージ・アノニマVallourec Tubos do Brasil S.A. Method for manufacturing multilayer pipes by expansion and multilayer pipes manufactured by said method
US10300516B2 (en) 2013-08-23 2019-05-28 Vallourec Soluções Tubulares Do Brasil S.A. Process for producing a multilayer pipe by expansion and multilayer pipe produced by said process
CN105705261B (en) * 2013-08-23 2020-03-03 瓦卢瑞克图沃斯巴西股份公司 Method for producing a multilayer tube by expansion and multilayer tube produced by said method

Also Published As

Publication number Publication date
JPH0576378B2 (en) 1993-10-22

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