FR874506A - Alternating-current magnetic test apparatus for testing parts of iron or other metals in the form of rings or discs with the aim of discovering cracks - Google Patents

Alternating-current magnetic test apparatus for testing parts of iron or other metals in the form of rings or discs with the aim of discovering cracks

Info

Publication number
FR874506A
FR874506A FR874506DA FR874506A FR 874506 A FR874506 A FR 874506A FR 874506D A FR874506D A FR 874506DA FR 874506 A FR874506 A FR 874506A
Authority
FR
France
Prior art keywords
discovering
cracks
discs
aim
alternating
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
Other languages
French (fr)
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.)
Deutsche Schiff & Maschb AG
Original Assignee
Deutsche Schiff & Maschb AG
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 Deutsche Schiff & Maschb AG filed Critical Deutsche Schiff & Maschb AG
Application granted granted Critical
Publication of FR874506A publication Critical patent/FR874506A/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)
FR874506D 1937-04-13 1941-08-05 Alternating-current magnetic test apparatus for testing parts of iron or other metals in the form of rings or discs with the aim of discovering cracks Expired FR874506A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED75058D DE749632C (en) 1937-04-13 1937-04-13 Magnetic alternating current tester for the examination of ring or disk-shaped iron or metal bodies for cracks

Publications (1)

Publication Number Publication Date
FR874506A true FR874506A (en) 1942-08-10

Family

ID=7061846

Family Applications (1)

Application Number Title Priority Date Filing Date
FR874506D Expired FR874506A (en) 1937-04-13 1941-08-05 Alternating-current magnetic test apparatus for testing parts of iron or other metals in the form of rings or discs with the aim of discovering cracks

Country Status (2)

Country Link
DE (1) DE749632C (en)
FR (1) FR874506A (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE642163C (en) * 1937-02-24 Bruno Suschyzki Method for testing magnetizable materials for cracks and irregularities
DE292013C (en) *
US1426384A (en) * 1919-06-23 1922-08-22 William E Hoke Method of and means for detecting defects in paramagnetic material
DE376358C (en) * 1922-05-14 1923-05-28 Siemens & Halske Akt Ges Method for the determination of material defects in toroidal bodies
DE431888C (en) * 1924-02-29 1926-07-23 Richard Mack Electric resistance welding machine
US1960898A (en) * 1929-07-05 1934-05-29 A V De Forest Associates Magnetic testing method and means
DE569175C (en) * 1931-03-25 1933-01-30 Aeg Procedure for testing ferromagnetic materials for anisotropy
DE615659C (en) * 1932-09-04 1935-07-10 Linde Air Prod Co Method and apparatus for testing steel cylinders

Also Published As

Publication number Publication date
DE749632C (en) 1944-11-28

Similar Documents

Publication Publication Date Title
CH241028A (en) Eddy current dynamometer.
FR874506A (en) Alternating-current magnetic test apparatus for testing parts of iron or other metals in the form of rings or discs with the aim of discovering cracks
FR822317A (en) Iron alloys for electrical resistances
FR791534A (en) Clamping and measuring device for workpieces with circular cross-section
FR816261A (en) Device for checking the balancing of rotating parts
FR908712A (en) Improvements to devices for testing eddy current couplings
FR801424A (en) Universal machine for testing metals and in particular cast iron
FR930143A (en) Improvement in apparatus for drying air or other gases
FR45652E (en) Application of eddy currents for testing metal parts
FR765742A (en) Application of eddy currents for testing metal parts
FR838494A (en) Method and device for determining the resistance of fabrics to tearing and wear
FR888491A (en) Apparatus for finding faults in iron parts
FR792918A (en) Material based on iron or iron alloys for containers and apparatus
FR837445A (en) Improvements in processes for decarburizing cast iron and other similar metals in the solid state
FR861513A (en) Cooling system for shaft furnaces
FR830136A (en) Apparatus for measuring the permeability of fabrics
FR824192A (en) Device with one or more torches for removing metal from the surface of metal parts
FR819439A (en) Processes and apparatus for annealing
FR800005A (en) Apparatus for taking measurements and forms for cutting and trying on clothes
FR822244A (en) Measuring device for jackets and vests
FR838075A (en) Apparatus for turning or tumbling laminates
FR726145A (en) Indicator to mark the degree of heat in electric irons
ES155217A1 (en) PROCEDURE FOR OBTAINING HIGH QUALITY IRON ALLOYS
FR828261A (en) Apparatus for mixing materials of different or similar nature
FR802937A (en) Security apparatus against auto theft in general