JPS5733349A - Flaw inspecting apparatus by magnetic powder while travelling - Google Patents

Flaw inspecting apparatus by magnetic powder while travelling

Info

Publication number
JPS5733349A
JPS5733349A JP10847480A JP10847480A JPS5733349A JP S5733349 A JPS5733349 A JP S5733349A JP 10847480 A JP10847480 A JP 10847480A JP 10847480 A JP10847480 A JP 10847480A JP S5733349 A JPS5733349 A JP S5733349A
Authority
JP
Japan
Prior art keywords
magnetic powder
winding
magnetizer
flaw
travelling
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
JP10847480A
Other languages
Japanese (ja)
Inventor
Kazuhiko Fujiwara
Tetsuo Nakamura
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
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP10847480A priority Critical patent/JPS5733349A/en
Publication of JPS5733349A publication Critical patent/JPS5733349A/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
    • G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
    • G01N27/84—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields by applying magnetic powder or magnetic ink

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 detect minute and circular defects with a high accuracy and also, to eliminate or reduce an equipment, by carrying out simultaneous multidirection magnetization for the material to be inspected using a prescribed magnetization apparatus. CONSTITUTION:A magnetizer A magnetizable in multidirection is constructed by winding plural windings 13 on a core main body 12 formed in an endless shape and providing plural drum parts 14 between each winding 13 and also, winding winding 13' on the part 14. And the magnetizer A, an atomizer B and observing apparatus C are arranged by a transfer apparatus D so as to surround a travelling material to be inspected 11 and a magnetic powder supply apparatus E operating these mechanisms and a controlling apparatus F such as magnetizing, magnetic powder supply and light switching are provided with the apparatus D. The material 11 is magnetized by the magnetizer A by magnetizing current and magnetic powder is supplied to a leakage magnetic flux generated on a discontinuous part of defective flaw of the surface layer of the material 11 and the flaw of the surface layer is detected by apparatus pattern of the magnetic powder.
JP10847480A 1980-08-07 1980-08-07 Flaw inspecting apparatus by magnetic powder while travelling Pending JPS5733349A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10847480A JPS5733349A (en) 1980-08-07 1980-08-07 Flaw inspecting apparatus by magnetic powder while travelling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10847480A JPS5733349A (en) 1980-08-07 1980-08-07 Flaw inspecting apparatus by magnetic powder while travelling

Publications (1)

Publication Number Publication Date
JPS5733349A true JPS5733349A (en) 1982-02-23

Family

ID=14485666

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10847480A Pending JPS5733349A (en) 1980-08-07 1980-08-07 Flaw inspecting apparatus by magnetic powder while travelling

Country Status (1)

Country Link
JP (1) JPS5733349A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0543066U (en) * 1991-11-11 1993-06-11 三菱重工業株式会社 Eddy current flaw detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0543066U (en) * 1991-11-11 1993-06-11 三菱重工業株式会社 Eddy current flaw detector

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