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JPS574392A - Method for fixing heat exchanger tube and tube plate - Google Patents

Method for fixing heat exchanger tube and tube plate

Info

Publication number
JPS574392A
JPS574392A JP7670680A JP7670680A JPS574392A JP S574392 A JPS574392 A JP S574392A JP 7670680 A JP7670680 A JP 7670680A JP 7670680 A JP7670680 A JP 7670680A JP S574392 A JPS574392 A JP S574392A
Authority
JP
Japan
Prior art keywords
tube
heat exchanger
plate
exchanger tube
weld zones
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
JP7670680A
Other languages
Japanese (ja)
Inventor
Mamoru Takahashi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP7670680A priority Critical patent/JPS574392A/en
Publication of JPS574392A publication Critical patent/JPS574392A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/10—Devices involving relative movement between laser beam and workpiece using a fixed support, i.e. involving moving the laser beam
    • B23K26/103—Devices involving relative movement between laser beam and workpiece using a fixed support, i.e. involving moving the laser beam the laser beam rotating around the fixed workpiece
    • B23K26/106—Devices involving relative movement between laser beam and workpiece using a fixed support, i.e. involving moving the laser beam the laser beam rotating around the fixed workpiece inside the workpiece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/24—Seam welding
    • B23K26/28—Seam welding of curved planar seams
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/06—Fastening; Joining by welding
    • F28F2275/067—Fastening; Joining by welding by laser welding

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Laser Beam Processing (AREA)

Abstract

PURPOSE:To considerably improve the reliability of weld zones by inserting a heat exchanger tube into a tube hole in close contact therewith, and securing the same by laser beams from the inner side of the heat exchanger tube, in a feed water heater. CONSTITUTION:First, a heat exchanger tube 6 is inserted into the tube hole pierced in the prescribed position of a tube plate 5, and the tube 6 is put in close contact with the tube hole by expanding the same. Thence, a plane mirror 8 mounted to a laser welding device 9 is inserted into the tube 6, and the plane mirror is so adjusted that the laser beam emitted from the device 9 falls onto the inside surface of the tube 6 at a right angle thereto. The tube 6 and the plate 5 are subjected to welding by as much as required number, thereby forming weld zones A. Since in this way the laser welding is executed without the aid of manual labor, the reliability of the weld zones A is considerably improved.
JP7670680A 1980-06-09 1980-06-09 Method for fixing heat exchanger tube and tube plate Pending JPS574392A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7670680A JPS574392A (en) 1980-06-09 1980-06-09 Method for fixing heat exchanger tube and tube plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7670680A JPS574392A (en) 1980-06-09 1980-06-09 Method for fixing heat exchanger tube and tube plate

Publications (1)

Publication Number Publication Date
JPS574392A true JPS574392A (en) 1982-01-09

Family

ID=13612957

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7670680A Pending JPS574392A (en) 1980-06-09 1980-06-09 Method for fixing heat exchanger tube and tube plate

Country Status (1)

Country Link
JP (1) JPS574392A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4694136A (en) * 1986-01-23 1987-09-15 Westinghouse Electric Corp. Laser welding of a sleeve within a tube
US8439250B2 (en) * 2009-07-01 2013-05-14 Lockheed Martin Corporation Friction-stir weld-tool and method
JP2013230476A (en) * 2012-04-27 2013-11-14 Miura Co Ltd Method of sealing tube plate and heat transfer tube of heat exchanger and heat exchanger
US10024602B2 (en) 2012-11-07 2018-07-17 Alfa Laval Corporate Ab Method of making a plate package for a plate heat exchanger

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4694136A (en) * 1986-01-23 1987-09-15 Westinghouse Electric Corp. Laser welding of a sleeve within a tube
US8439250B2 (en) * 2009-07-01 2013-05-14 Lockheed Martin Corporation Friction-stir weld-tool and method
JP2013230476A (en) * 2012-04-27 2013-11-14 Miura Co Ltd Method of sealing tube plate and heat transfer tube of heat exchanger and heat exchanger
US10024602B2 (en) 2012-11-07 2018-07-17 Alfa Laval Corporate Ab Method of making a plate package for a plate heat exchanger

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