JPS5780554A - Eddy-current crack detection testing device - Google Patents

Eddy-current crack detection testing device

Info

Publication number
JPS5780554A
JPS5780554A JP55157284A JP15728480A JPS5780554A JP S5780554 A JPS5780554 A JP S5780554A JP 55157284 A JP55157284 A JP 55157284A JP 15728480 A JP15728480 A JP 15728480A JP S5780554 A JPS5780554 A JP S5780554A
Authority
JP
Japan
Prior art keywords
coil
pipe
eddy
crack detection
stopped
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
JP55157284A
Other languages
Japanese (ja)
Inventor
Akio Takahashi
Koichi Ogino
Junichi Tanaka
Tetsuya Hirota
Takahide Sakamoto
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP55157284A priority Critical patent/JPS5780554A/en
Publication of JPS5780554A publication Critical patent/JPS5780554A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
    • G01N27/9093—Arrangements for supporting the sensor; Combinations of eddy-current sensors and auxiliary arrangements for marking or for rejecting

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

PURPOSE:To shorten sharply the time for changing steps of a detector to change sizes of a sample material by automatically putting on and off, and taking the core out of a coil by arranging a supporting structure and an automatic setting device of a detecting coil on a platform. CONSTITUTION:In case of an eddy-current crack detection of a steel pipe, for example, a stopper 31 with the same diameter as that of the pipe is set to a stopper table 30 with a three-point supporting structure in order to take out the core to meet with the diameter of the pipe. On the other hand, a detecting coil 13-2 to set at a saturation coil 13-1 is chosen from a plurality of coils 13-2 of vairous coil diameters, and a base cart 16 is moved and stopped at the place where the detecting coil of the suitable pipe diameter matches wth an inserting hole 13H of the saturation coil 13-1. Then a platform 10 is moved up and down by an elevator and stopped at a certain height. Thus preparation before testing is completed. By this kind of construction, steps are changed automatically for various sizes of the sample, and the fime for changing steps is shortened sharply.
JP55157284A 1980-11-07 1980-11-07 Eddy-current crack detection testing device Pending JPS5780554A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55157284A JPS5780554A (en) 1980-11-07 1980-11-07 Eddy-current crack detection testing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55157284A JPS5780554A (en) 1980-11-07 1980-11-07 Eddy-current crack detection testing device

Publications (1)

Publication Number Publication Date
JPS5780554A true JPS5780554A (en) 1982-05-20

Family

ID=15646294

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55157284A Pending JPS5780554A (en) 1980-11-07 1980-11-07 Eddy-current crack detection testing device

Country Status (1)

Country Link
JP (1) JPS5780554A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011127922A (en) * 2009-12-15 2011-06-30 Sumitomo Metal Ind Ltd Method of eddy current flaw inspection, and gap forming member used for the same
CN103105431A (en) * 2013-01-15 2013-05-15 沈玉琴 Eddy current high/low-frequency compound detection equipment for seamless steel tubes
US8469652B2 (en) 2009-05-15 2013-06-25 Kobelco Construction Machinery Co., Ltd. Gripping device of working machine and working machine with the same
CN103278559A (en) * 2013-04-25 2013-09-04 宁波金特信钢铁科技有限公司 Eddy current detecting device of seamless steel tubes
CN105499145A (en) * 2015-12-18 2016-04-20 湖州人新轴承钢管有限公司 On-line steel tube detecting and sorting device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5517B2 (en) * 1974-10-21 1980-01-05

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5517B2 (en) * 1974-10-21 1980-01-05

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8469652B2 (en) 2009-05-15 2013-06-25 Kobelco Construction Machinery Co., Ltd. Gripping device of working machine and working machine with the same
JP2011127922A (en) * 2009-12-15 2011-06-30 Sumitomo Metal Ind Ltd Method of eddy current flaw inspection, and gap forming member used for the same
CN103105431A (en) * 2013-01-15 2013-05-15 沈玉琴 Eddy current high/low-frequency compound detection equipment for seamless steel tubes
CN103278559A (en) * 2013-04-25 2013-09-04 宁波金特信钢铁科技有限公司 Eddy current detecting device of seamless steel tubes
CN105499145A (en) * 2015-12-18 2016-04-20 湖州人新轴承钢管有限公司 On-line steel tube detecting and sorting device

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