SE9902857D0 - Laser emitting head, laser radiation transmission device, means for setting a laser radiation transmission device, and device for preventive maintenance / repair of a core structure - Google Patents

Laser emitting head, laser radiation transmission device, means for setting a laser radiation transmission device, and device for preventive maintenance / repair of a core structure

Info

Publication number
SE9902857D0
SE9902857D0 SE9902857A SE9902857A SE9902857D0 SE 9902857 D0 SE9902857 D0 SE 9902857D0 SE 9902857 A SE9902857 A SE 9902857A SE 9902857 A SE9902857 A SE 9902857A SE 9902857 D0 SE9902857 D0 SE 9902857D0
Authority
SE
Sweden
Prior art keywords
laser beam
reflective mirror
laser
condensing lens
transmission device
Prior art date
Application number
SE9902857A
Other languages
Swedish (sv)
Other versions
SE521996C2 (en
SE9902857L (en
Inventor
Katsuhiko Sato
Motohiko Kimura
Yuji Sano
Mitsuaki Shimamura
Hiroaki Igakura
Makoto Ochiai
Hisashi Hozumi
Naruhiki Mukai
Masaki Yoda
Yutaka Togasawa
Yasumi Kitajima
Tomoyuki Ito
Nobuhiko Tanaka
Takuya Uehara
Makoto Kondo
Yoshifumi Sato
Tatsuki Ogisu
Minoru Obata
Naoko Hayashi
Original Assignee
Toshiba Kk
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 Kk filed Critical Toshiba Kk
Publication of SE9902857D0 publication Critical patent/SE9902857D0/en
Publication of SE9902857L publication Critical patent/SE9902857L/en
Publication of SE521996C2 publication Critical patent/SE521996C2/en

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
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
    • B23K26/0643—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising mirrors
    • 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
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/04—Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
    • 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
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
    • B23K26/0648—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising lenses
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/003—Remote inspection of vessels, e.g. pressure vessels
    • G21C17/01—Inspection of the inner surfaces of vessels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Laser Beam Processing (AREA)

Abstract

A laser emission head which applies a laser beam outputted from a laser device (624) to an operation object part, comprising an emission head main part having an in-head lightguide member (625) which guides the laser beam, a condensing lens (677) which condenses the laser beam from the in-head lightguide member, a reflective mirror (678) which applies the condensed laser beam to the operation object part, a mirror turning means (684) which holds the reflective mirror rotatably around a laser beam axis, a distance adjusting means (674) which adjust a relative distance between the reflective mirror and the condensing lens and a transfer means (665) which transfers the reflective mirror and the condensing lens in a laser beam axis direction while the relative distance between the reflective mirror and the condensing lens is maintained. The in-head lightguide member, the condensing lens and the reflective mirror can be carried into/from the operation object part which is formed in, for instance, a small gap between the structural units. With this constitution, the preventive maintenance/repair work by a laser beam in, for instance, a small gap between structures in the nuclear reactor can be performed automatically, and further, safely, and more efficiently.
SE9902857A 1997-12-09 1999-08-09 Laser beam emitting head, light transmission device, means for adjusting it and preventive maintenance / repair device SE521996C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP33897497A JP3865338B2 (en) 1997-12-09 1997-12-09 Preventive maintenance / repair equipment for reactor internals
PCT/JP1998/005569 WO1999029463A1 (en) 1997-12-09 1998-12-09 Laser emission head, laser beam transmission device, laser beam transmission device adjustment method and preventive maintenance/repair device of structure in nuclear reactor

Publications (3)

Publication Number Publication Date
SE9902857D0 true SE9902857D0 (en) 1999-08-09
SE9902857L SE9902857L (en) 1999-10-06
SE521996C2 SE521996C2 (en) 2003-12-23

Family

ID=18323092

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9902857A SE521996C2 (en) 1997-12-09 1999-08-09 Laser beam emitting head, light transmission device, means for adjusting it and preventive maintenance / repair device

Country Status (4)

Country Link
JP (1) JP3865338B2 (en)
DE (1) DE19882109T1 (en)
SE (1) SE521996C2 (en)
WO (1) WO1999029463A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001099987A (en) * 1999-09-28 2001-04-13 Toshiba Corp Laser polishing device for interior of nuclear reactor piping
JP3306040B2 (en) * 2000-03-10 2002-07-24 株式会社東芝 Reactor internal structure maintenance and repair equipment
US7851725B2 (en) * 2004-11-17 2010-12-14 Metal Improvement Company Llc Active beam delivery system with image relay
US7718921B2 (en) 2004-11-17 2010-05-18 Metal Improvement Company Llc Active beam delivery system with variable optical path segment through air
JP4923459B2 (en) * 2005-07-19 2012-04-25 日産自動車株式会社 Laser welding apparatus and laser welding system
JP6189040B2 (en) * 2013-01-31 2017-08-30 三菱重工業株式会社 Reactor repair equipment installation apparatus and method
JP2016078044A (en) * 2014-10-14 2016-05-16 三菱電機株式会社 Processing state determination device and processor
AU2018261777B2 (en) 2017-05-04 2023-05-11 3D at Depth, Inc. Systems and methods for monitoring underwater structures
US10502829B2 (en) 2017-07-10 2019-12-10 3D at Depth, Inc. Underwater optical metrology system
DE102020112330A1 (en) 2020-05-07 2021-11-11 Renk Gmbh Workpiece processing device
CA3196840A1 (en) * 2020-09-25 2022-03-31 3D at Depth, Inc. Systems and methods for laser inspection and measurements

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63210240A (en) * 1987-02-26 1988-08-31 Mitsubishi Motors Corp Method for hardening cylindrical block
JP2526891B2 (en) * 1987-03-24 1996-08-21 日本電気株式会社 Laser Beam Skiana
JPH01278987A (en) * 1988-04-28 1989-11-09 Toshiba Corp Adjusting device for optical axis
JPH02255291A (en) * 1989-03-28 1990-10-16 Toshiba Corp Device for observing position to be irradiated with laser light
JPH07248397A (en) * 1994-03-09 1995-09-26 Toshiba Corp Repairing method for nuclear reactor inside structure and device therefor

Also Published As

Publication number Publication date
DE19882109T1 (en) 2000-03-16
SE521996C2 (en) 2003-12-23
WO1999029463A1 (en) 1999-06-17
SE9902857L (en) 1999-10-06
JP3865338B2 (en) 2007-01-10
JPH11174191A (en) 1999-07-02

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