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AT301219B - Process and device for the visualization of cracks and other imperfections on the entire surface of billets and other semi-finished products - Google Patents

Process and device for the visualization of cracks and other imperfections on the entire surface of billets and other semi-finished products

Info

Publication number
AT301219B
AT301219B AT997369A AT997369A AT301219B AT 301219 B AT301219 B AT 301219B AT 997369 A AT997369 A AT 997369A AT 997369 A AT997369 A AT 997369A AT 301219 B AT301219 B AT 301219B
Authority
AT
Austria
Prior art keywords
billets
imperfections
visualization
cracks
semi
Prior art date
Application number
AT997369A
Other languages
German (de)
Original Assignee
Oerlikon Buehrle Schweisstech
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 Oerlikon Buehrle Schweisstech filed Critical Oerlikon Buehrle Schweisstech
Application granted granted Critical
Publication of AT301219B publication Critical patent/AT301219B/en

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)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biochemistry (AREA)
  • Electrochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
AT997369A 1968-11-08 1969-10-22 Process and device for the visualization of cracks and other imperfections on the entire surface of billets and other semi-finished products AT301219B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1670968A CH526779A (en) 1968-11-08 1968-11-08 Method and device for permanent visualization of imperfections, in particular cracks, on the surface of semi-finished products

Publications (1)

Publication Number Publication Date
AT301219B true AT301219B (en) 1972-08-25

Family

ID=4419553

Family Applications (1)

Application Number Title Priority Date Filing Date
AT997369A AT301219B (en) 1968-11-08 1969-10-22 Process and device for the visualization of cracks and other imperfections on the entire surface of billets and other semi-finished products

Country Status (17)

Country Link
US (1) US3614604A (en)
JP (1) JPS5211235B1 (en)
AT (1) AT301219B (en)
BE (1) BE741364A (en)
BR (1) BR6913562D0 (en)
CH (1) CH526779A (en)
CS (1) CS158656B2 (en)
DE (1) DE1953717C3 (en)
ES (2) ES373626A1 (en)
FR (1) FR2022867A1 (en)
GB (1) GB1289727A (en)
LU (1) LU59756A1 (en)
NL (1) NL6916879A (en)
PL (1) PL80328B1 (en)
RO (1) RO61659A (en)
SE (1) SE357829B (en)
SU (1) SU456433A3 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2116827A1 (en) * 1971-04-06 1972-10-19 Förster, Friedrich, Dr., 7410 Reutlingen Arrangement for the non-destructive testing of steel parts
NO130802C (en) * 1972-10-10 1975-02-12 Schelderups Ind A S
CH599547A5 (en) * 1976-08-31 1978-05-31 Mecafina Sa
US4341997A (en) 1979-11-14 1982-07-27 Magnaflux Corporation Magnetic particle inspection process useable with simultaneous illumination by ultra-violet and white light
DE3132390A1 (en) * 1981-08-17 1983-03-03 Mecapec S.A., 8716 Schmerikon "METHOD AND DEVICE FOR MAGNETIC Crack Testing"
EP0090190A1 (en) * 1982-03-22 1983-10-05 Mecapec S.A. Method and apparatus for magnetically detecting flaws in materials
EP0164057A3 (en) * 1984-06-08 1988-05-04 Mecapec S.A. Methods and devices for determining surface defects in a rod-shaped ferromagnetic object
US5648720A (en) * 1993-03-25 1997-07-15 International Business Machines Corporation Apparatus and method for producing a magnetic image of a conductive pattern using eddy currents
DE19817953A1 (en) * 1998-04-22 1999-10-28 Hilti Ag Marking device
US7254922B2 (en) * 2002-04-04 2007-08-14 Fairborn Usa, Inc. Selectively releasable and pivotable side curtain assembly
GB2452769B (en) * 2007-09-17 2011-06-01 Motorola Inc Device and electrical contact mechanism therefor
US8575923B1 (en) 2011-01-07 2013-11-05 OilPatch Technology Method and apparatus for special end area inspection
MX2021015799A (en) * 2019-06-28 2022-04-27 Solmax Int Inc Membrane inspection method based on magnetic field sensing.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1169696B (en) * 1957-04-13 1964-05-06 Daimler Benz Ag Fully automatic device for detecting cracks in axially symmetrical iron and steel parts using the magnetic powder method
US3073212A (en) * 1957-08-14 1963-01-15 Magnaflux Corp Optical apparatus for inspecting magnetic particle concentrations
US3249861A (en) * 1962-09-18 1966-05-03 Budd Co Method and apparatus for magnetic flaw detection by depositing magnetic particles ononly the area of the flaw
US3480855A (en) * 1967-04-10 1969-11-25 Magnaflux Corp Image dissector system having pattern rotation means

Also Published As

Publication number Publication date
BR6913562D0 (en) 1973-01-11
JPS5211235B1 (en) 1977-03-29
FR2022867A1 (en) 1970-08-07
CS158656B2 (en) 1974-11-25
GB1289727A (en) 1972-09-20
BE741364A (en) 1970-05-06
SE357829B (en) 1973-07-09
PL80328B1 (en) 1975-08-30
ES373624A1 (en) 1972-02-01
SU456433A3 (en) 1975-01-05
ES373626A1 (en) 1972-02-01
CH526779A (en) 1972-08-15
US3614604A (en) 1971-10-19
DE1953717B2 (en) 1975-01-30
DE1953717C3 (en) 1975-09-11
LU59756A1 (en) 1970-01-13
NL6916879A (en) 1970-05-12
RO61659A (en) 1977-02-15
DE1953717A1 (en) 1970-12-10

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee