JPS57119243A - Inner face inspection device for circumferentially welded tube - Google Patents

Inner face inspection device for circumferentially welded tube

Info

Publication number
JPS57119243A
JPS57119243A JP509781A JP509781A JPS57119243A JP S57119243 A JPS57119243 A JP S57119243A JP 509781 A JP509781 A JP 509781A JP 509781 A JP509781 A JP 509781A JP S57119243 A JPS57119243 A JP S57119243A
Authority
JP
Japan
Prior art keywords
truck
tube
weld
circumferential direction
inspected
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
JP509781A
Other languages
Japanese (ja)
Inventor
Atsushi Maruyama
Akio Aoki
Kimiharu Ikuno
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP509781A priority Critical patent/JPS57119243A/en
Publication of JPS57119243A publication Critical patent/JPS57119243A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/08—Testing mechanical properties
    • G01M11/083—Testing mechanical properties by using an optical fiber in contact with the device under test [DUT]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

PURPOSE:To detect for sure a defect at a weld by providing an internal truck that is freely movable on the inner face of a tube to be inspected in the inner circumferential direction and an outer truck that is freely movable on the outer face of the tube in the inner circumferential direction. CONSTITUTION:The inspection device comprises an intermal truck 9 that is freely movable on the inner face of a tube 3 to be inspected in the inner circumferential direction and has the end 8A of an optical fiber 8 fixed in the direction that is parallel to the axial line of the tube 3 to be inspected and a truck 10 that is freely movable on the outer face of the tube 3 in the circumferential direction and is free to follow said internal truck 9 by means of magnetic attraction developed between the internal and external trucks 9 and 10. With this arrangement the internal truck 9 is moved as the external tube 10 is moved, and if the opening 13A of a guide pipe 13 is placed on a weld 4, any defect in the weld 4 can be visually inspected by moving the external truck 10 along the weld 4.
JP509781A 1981-01-19 1981-01-19 Inner face inspection device for circumferentially welded tube Pending JPS57119243A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP509781A JPS57119243A (en) 1981-01-19 1981-01-19 Inner face inspection device for circumferentially welded tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP509781A JPS57119243A (en) 1981-01-19 1981-01-19 Inner face inspection device for circumferentially welded tube

Publications (1)

Publication Number Publication Date
JPS57119243A true JPS57119243A (en) 1982-07-24

Family

ID=11601870

Family Applications (1)

Application Number Title Priority Date Filing Date
JP509781A Pending JPS57119243A (en) 1981-01-19 1981-01-19 Inner face inspection device for circumferentially welded tube

Country Status (1)

Country Link
JP (1) JPS57119243A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6362754U (en) * 1986-10-13 1988-04-25

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6362754U (en) * 1986-10-13 1988-04-25

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