WO2017135621A3 - Metal pipe having inner protective tube and manufacturing method therefor - Google Patents

Metal pipe having inner protective tube and manufacturing method therefor Download PDF

Info

Publication number
WO2017135621A3
WO2017135621A3 PCT/KR2017/000790 KR2017000790W WO2017135621A3 WO 2017135621 A3 WO2017135621 A3 WO 2017135621A3 KR 2017000790 W KR2017000790 W KR 2017000790W WO 2017135621 A3 WO2017135621 A3 WO 2017135621A3
Authority
WO
WIPO (PCT)
Prior art keywords
protective tube
inner protective
main body
pipe
metal pipe
Prior art date
Application number
PCT/KR2017/000790
Other languages
French (fr)
Korean (ko)
Other versions
WO2017135621A2 (en
Inventor
김성식
Original Assignee
김성식
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 김성식 filed Critical 김성식
Publication of WO2017135621A2 publication Critical patent/WO2017135621A2/en
Publication of WO2017135621A3 publication Critical patent/WO2017135621A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/08—Tube expanders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/08—Tube expanders
    • B21D39/10—Tube expanders with rollers for expanding only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/02—Enlarging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/04—Coatings characterised by the materials used
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/04—Coatings characterised by the materials used
    • F16L58/08—Coatings characterised by the materials used by metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/18—Double-walled pipes; Multi-channel pipes or pipe assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/18—Double-walled pipes; Multi-channel pipes or pipe assemblies
    • F16L9/19—Multi-channel pipes or pipe assemblies

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)

Abstract

The present invention relates to a metal pipe having an inner protective tube and a manufacturing method therefor, in which the inner protective tube capable of enhancing corrosion resistance and wear resistance is inserted into the metal pipe to increase the lifespan of the metal pipe and to prevent a material transported through the metal pipe from being contaminated due to corrosion. The method according to the present invention for manufacturing the metal pipe having the inner protective tube comprises: a step for inserting the inner protective tube into a pipe main body, the inner protective tube having an outer diameter smaller than the inner diameter of the pipe main body; a step for inserting a tube-expanding unit into the inner protective tube; a tube-expanding step for expanding the inner protective tube toward the outside through the tube-expanding unit, which has been inserted in the inner protective tube, to allow the outer circumferential surface of the inner protective tube to make contact with the inner circumferential surface of the pipe main body so that the inner protective tube and the pipe main body are coupled with each other; and a pipe-heating step for heating part of the pipe main body in which the inner protective tube is to be expanded, in order to increase the inner diameter of the pipe main body by a predetermined value after the inner protective tube is inserted into the pipe main body.
PCT/KR2017/000790 2016-02-02 2017-01-24 Metal pipe having inner protective tube and manufacturing method therefor WO2017135621A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020160012966A KR101703089B1 (en) 2016-02-02 2016-02-02 Method of manufacturing a metal pipe having an inner protective tube
KR10-2016-0012966 2016-02-02

Publications (2)

Publication Number Publication Date
WO2017135621A2 WO2017135621A2 (en) 2017-08-10
WO2017135621A3 true WO2017135621A3 (en) 2018-08-02

Family

ID=58108882

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2017/000790 WO2017135621A2 (en) 2016-02-02 2017-01-24 Metal pipe having inner protective tube and manufacturing method therefor

Country Status (2)

Country Link
KR (1) KR101703089B1 (en)
WO (1) WO2017135621A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102136352B1 (en) * 2018-08-03 2020-07-21 승진산업 (주) Method of making flexible joint
CN109279835B (en) * 2018-09-21 2021-03-26 中国科学院金属研究所 Bionic cement with directional porous structure and preparation method thereof
EP3976287A4 (en) * 2019-05-31 2023-10-25 Milwaukee Electric Tool Corporation Tubing expansion tools and systems and methods for leak detection
KR20230003497A (en) * 2020-04-20 2023-01-06 웨스팅하우스 일렉트릭 컴퍼니 엘엘씨 Internal hydroforming method for manufacturing a heat pipe wick using a hollow mandrel and sheath
US11780122B2 (en) * 2020-04-20 2023-10-10 Westinghouse Electric Company Llc Internal hydroforming method for manufacturing heat pipe wicks
CN112692129A (en) * 2020-11-23 2021-04-23 湖南兵器资江机器有限公司 Rib pressing device for cylindrical thin-wall part
CN112895407B (en) * 2021-01-26 2023-04-14 宜宾学院 Thermoplastic pipeline expanding device
CN114151651A (en) * 2021-12-07 2022-03-08 山东佰盛能源科技有限公司 Anticorrosive conveyer pipe with protect function

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4538337A (en) * 1982-08-31 1985-09-03 The Babcock & Wilcox Company Method of mechanically prestressing a tubular apparatus
JPH07284844A (en) * 1994-02-28 1995-10-31 Toyo Tokushu Kogyo Kk Method and device for manufacturing special shaped tube
JPH11290939A (en) * 1998-04-08 1999-10-26 Daido Steel Co Ltd Manufacture of long double metallic tube
KR100963423B1 (en) * 2009-11-12 2010-06-15 현대하이스코 주식회사 Method of manufacturing double-layer water pipe using hydro forming
WO2014169367A2 (en) * 2013-08-23 2014-10-23 Vallourec Tubos Do Brasil S.A. Process for producing a multilayer pipe by expansion and multilayer pipe produced by said process

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62101328A (en) * 1985-10-30 1987-05-11 Kawasaki Heavy Ind Ltd Double pipe producing method
JPS62214838A (en) * 1986-03-18 1987-09-21 Kawasaki Heavy Ind Ltd Method and device for pipe expansion
KR101077858B1 (en) 2004-09-16 2011-10-31 곽상운 Coating method for pipe
US20060185591A1 (en) 2005-02-18 2006-08-24 General Electric Company High temperature chemical vapor deposition apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4538337A (en) * 1982-08-31 1985-09-03 The Babcock & Wilcox Company Method of mechanically prestressing a tubular apparatus
JPH07284844A (en) * 1994-02-28 1995-10-31 Toyo Tokushu Kogyo Kk Method and device for manufacturing special shaped tube
JPH11290939A (en) * 1998-04-08 1999-10-26 Daido Steel Co Ltd Manufacture of long double metallic tube
KR100963423B1 (en) * 2009-11-12 2010-06-15 현대하이스코 주식회사 Method of manufacturing double-layer water pipe using hydro forming
WO2014169367A2 (en) * 2013-08-23 2014-10-23 Vallourec Tubos Do Brasil S.A. Process for producing a multilayer pipe by expansion and multilayer pipe produced by said process

Also Published As

Publication number Publication date
KR101703089B1 (en) 2017-02-06
WO2017135621A2 (en) 2017-08-10

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