GB1508771A - Magnetic testers - Google Patents

Magnetic testers

Info

Publication number
GB1508771A
GB1508771A GB1480874A GB1480874A GB1508771A GB 1508771 A GB1508771 A GB 1508771A GB 1480874 A GB1480874 A GB 1480874A GB 1480874 A GB1480874 A GB 1480874A GB 1508771 A GB1508771 A GB 1508771A
Authority
GB
United Kingdom
Prior art keywords
sheet
magnetic
strip
april
ferromagnetic
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.)
Expired
Application number
GB1480874A
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.)
British Steel Corp
Original Assignee
British 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 British Steel Corp filed Critical British Steel Corp
Priority to GB1480874A priority Critical patent/GB1508771A/en
Priority to NL7503996A priority patent/NL7503996A/en
Priority to FR7510391A priority patent/FR2266884B3/fr
Priority to DE19752514526 priority patent/DE2514526A1/en
Publication of GB1508771A publication Critical patent/GB1508771A/en
Expired 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

1508771 Magnetic flaw detection BRITISH STEEL CORP 3 April 1975 [3 April 1974] 14808/74 Heading G1N A method for testing ferromagnetic strip material for inclusions involves applying to the strip a magnetic field generated independently of and at one side only of the strip and subjecting to the influences of the region so magnetized a suspension of ferromagnetic particles in a liquid carrier. A rigid sheet 4 of non-magnetic material supports a sheet 6 of tin plate under test. Disposed beneath the support sheet is an array of electromagnets (8), Fig. 2 (not shown), connected to a D.C. source. Mild steel bars (14) extend transversely of the rows of magnets to strap like poles together. A manifold 20 supplies the magnetic ink which is collected in a gulley 22 for recycling after passage over the test sheet.
GB1480874A 1974-04-03 1974-04-03 Magnetic testers Expired GB1508771A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB1480874A GB1508771A (en) 1974-04-03 1974-04-03 Magnetic testers
NL7503996A NL7503996A (en) 1974-04-03 1975-04-03 MAGNETIC EXAMINATION OF FERROMAGNETIC STRIP MATERIAL.
FR7510391A FR2266884B3 (en) 1974-04-03 1975-04-03
DE19752514526 DE2514526A1 (en) 1974-04-03 1975-04-03 METHOD AND DEVICE FOR TESTING FERROMAGNETIC SHEET METAL

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1480874A GB1508771A (en) 1974-04-03 1974-04-03 Magnetic testers

Publications (1)

Publication Number Publication Date
GB1508771A true GB1508771A (en) 1978-04-26

Family

ID=10047844

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1480874A Expired GB1508771A (en) 1974-04-03 1974-04-03 Magnetic testers

Country Status (4)

Country Link
DE (1) DE2514526A1 (en)
FR (1) FR2266884B3 (en)
GB (1) GB1508771A (en)
NL (1) NL7503996A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109557172A (en) * 2018-12-29 2019-04-02 东方电气集团东方锅炉股份有限公司 Test block and the test block for Magnetic testing depth test are used for the test method of Magnetic testing depth test

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109557172A (en) * 2018-12-29 2019-04-02 东方电气集团东方锅炉股份有限公司 Test block and the test block for Magnetic testing depth test are used for the test method of Magnetic testing depth test
CN109557172B (en) * 2018-12-29 2024-04-02 东方电气集团东方锅炉股份有限公司 Test block and test method for magnetic powder detection depth test

Also Published As

Publication number Publication date
DE2514526A1 (en) 1975-10-09
NL7503996A (en) 1975-10-07
FR2266884A1 (en) 1975-10-31
FR2266884B3 (en) 1977-12-16

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee