JPS56128454A - Magnetizing device for magnetic flaw detection - Google Patents

Magnetizing device for magnetic flaw detection

Info

Publication number
JPS56128454A
JPS56128454A JP3201780A JP3201780A JPS56128454A JP S56128454 A JPS56128454 A JP S56128454A JP 3201780 A JP3201780 A JP 3201780A JP 3201780 A JP3201780 A JP 3201780A JP S56128454 A JPS56128454 A JP S56128454A
Authority
JP
Japan
Prior art keywords
box
magnetic
magnetic flux
guide box
electric conductor
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
JP3201780A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Nagakura
Souichi Koishi
Nobuo Matsumoto
Masao Iritani
Hiroaki Yamashita
Takanobu Hosokawa
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 Steel Corp
Original Assignee
Kawasaki 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP3201780A priority Critical patent/JPS56128454A/en
Publication of JPS56128454A publication Critical patent/JPS56128454A/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 form a magnetic flux closed circuit between a flow detecting surface and a magnetic guide box, by installing the magnetic guide box in contact with or close to the flaw detecting surface, inserting an electric conductor in parallel to the bottom surface and a side surface of the magnetic guide box and then applying the current to the electric conductor. CONSTITUTION:The magnetic guide box 1 is formed into a rectangular parallelepiped having an open upper surface, and the both side plates and the bottom plate of the box 1 are made of a ferromagnetic material having a small amount of the residual magnetism such as the silicon steel, low-carbon steel or the like. The terminal plates 11 and 12 are attached to the both ends of the box 1, and these plates support an electric conductor 3 that is parallel to the side plates and the bottom plate of the box 1. The steel plate 2, i.e., a material to be tested is provided on the upper part of the box 1 with a certain space secured. Under such conditions, the current is flowed to the conductor 3 from the power source 13 to produce a magnetic field. Thus a closed circuit of the magnetic flux shown by the code 9 is formed to magnetize the steel plate 2. In case a flaw detection is carried out by the magnetic powder, the upper surface of the plate 2 is inspected. In such way, a high density is secured for the magnetic flux of the material to be tested with a small variance of the density of magnetic flux caused to the full width.
JP3201780A 1980-03-13 1980-03-13 Magnetizing device for magnetic flaw detection Pending JPS56128454A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3201780A JPS56128454A (en) 1980-03-13 1980-03-13 Magnetizing device for magnetic flaw detection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3201780A JPS56128454A (en) 1980-03-13 1980-03-13 Magnetizing device for magnetic flaw detection

Publications (1)

Publication Number Publication Date
JPS56128454A true JPS56128454A (en) 1981-10-07

Family

ID=12347082

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3201780A Pending JPS56128454A (en) 1980-03-13 1980-03-13 Magnetizing device for magnetic flaw detection

Country Status (1)

Country Link
JP (1) JPS56128454A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102253116A (en) * 2011-04-25 2011-11-23 四川兴天源材料检测技术有限公司 Magnetic-concentration induced magnetization apparatus and magnetization method thereof
WO2016200962A1 (en) * 2015-06-10 2016-12-15 Methode Electronics Inc. Load and torque sensing devices

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102253116A (en) * 2011-04-25 2011-11-23 四川兴天源材料检测技术有限公司 Magnetic-concentration induced magnetization apparatus and magnetization method thereof
WO2016200962A1 (en) * 2015-06-10 2016-12-15 Methode Electronics Inc. Load and torque sensing devices
US10746615B2 (en) 2015-06-10 2020-08-18 Methode Electronics, Inc. Magnetizing ferromagnetic elements used in load and torque sensing devices

Similar Documents

Publication Publication Date Title
DK62481A (en) PROCEDURE FOR MULTIPLE MAGNETIZATION OF SHIPPING MATERIAL AND APPARATUS FOR EXERCISING THE PROCEDURE
GB2109165A (en) Trip solenoid
US2764733A (en) Method and means for detecting flaws
JPS56128454A (en) Magnetizing device for magnetic flaw detection
JPS5730971A (en) Metal detector
JPS5717870A (en) Coil turn short circuit detection method of electromagnetic induction device
JPS5555420A (en) Vertical magnetization recording device
GB936015A (en) Improvements in or relating to apparatus for testing of ferro-magnetic material
GB2134128A (en) Magnetically conductive materials and articles and methods using them
JPS57161631A (en) Detecting device for surface stress
ES8100900A1 (en) Electromagnetic device for the separation of inclusions contained in an electrically conductive fluid.
GB1272888A (en) Improved electromagnetic apparatus
SU1670639A1 (en) Device for measuring magnetic characteristics of ferromagnetic closed samples
SU1656444A1 (en) Magnetizing device for magnetographic flaw detection
JPS5733350A (en) Method and apparatus for electromagnetic flaw inspection
GB718669A (en) Improvements relating to a method of and apparatus for testing non-magnetic material
Nakata et al. Accuracy of Magnetic Field Strength Measurement by Single Sheet Testers.
JPS57100330A (en) Magnetic sensor
SU1467488A1 (en) Adjustment specimen with simulator of subsurface defect for magnetic flaw detection
JPS56125675A (en) Method for measurement of electrostatic charged quantity of insulating oil in forced oil electrical apparatus
SU1298624A1 (en) Device for simulating magnetic leakage flux in electromagnetic flaw detection
SU1188628A1 (en) Electromagnetic probe
JPS55155222A (en) Stress measuring apparatus utilizing iron loss
JPS5737269A (en) Measuring device for electric current
JPS57200866A (en) Moving coil type measuring instrument