BE882938Q - APPARATUS FOR DETECTING SURFACE DEFECTS IN PARTICULAR ON SEMI STEEL PRODUCTS - Google Patents

APPARATUS FOR DETECTING SURFACE DEFECTS IN PARTICULAR ON SEMI STEEL PRODUCTS

Info

Publication number
BE882938Q
BE882938Q BE6/47142A BE6047142A BE882938Q BE 882938 Q BE882938 Q BE 882938Q BE 6/47142 A BE6/47142 A BE 6/47142A BE 6047142 A BE6047142 A BE 6047142A BE 882938 Q BE882938 Q BE 882938Q
Authority
BE
Belgium
Prior art keywords
surface defects
steel products
detecting surface
semi steel
semi
Prior art date
Application number
BE6/47142A
Other languages
French (fr)
Original Assignee
Dietrich & Cie De
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 Dietrich & Cie De filed Critical Dietrich & Cie De
Application granted granted Critical
Publication of BE882938Q publication Critical patent/BE882938Q/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • 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
    • G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
    • G01N27/904—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents with two or more sensors
    • 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
    • G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
    • G01N27/9046—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents by analysing electrical signals
    • 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
    • G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
    • G01N27/9093—Arrangements for supporting the sensor; Combinations of eddy-current sensors and auxiliary arrangements for marking or for rejecting

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)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
BE6/47142A 1977-05-10 1980-04-23 APPARATUS FOR DETECTING SURFACE DEFECTS IN PARTICULAR ON SEMI STEEL PRODUCTS BE882938Q (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7715002A FR2390729A1 (en) 1977-05-10 1977-05-10 Bimetallic strip fault detector - has precision roller bed and motor and uses oscillating magnetic fields to probe strip

Publications (1)

Publication Number Publication Date
BE882938Q true BE882938Q (en) 1980-08-18

Family

ID=9190880

Family Applications (1)

Application Number Title Priority Date Filing Date
BE6/47142A BE882938Q (en) 1977-05-10 1980-04-23 APPARATUS FOR DETECTING SURFACE DEFECTS IN PARTICULAR ON SEMI STEEL PRODUCTS

Country Status (2)

Country Link
BE (1) BE882938Q (en)
FR (1) FR2390729A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3112991C2 (en) * 1981-04-01 1985-12-12 Hoesch Ag, 4600 Dortmund Cylindrical grinding machine for the controlled grinding of cracks on rollers
US4514934A (en) * 1982-05-10 1985-05-07 Caterpillar Tractor Co. Method and apparatus for abrasively machining a workpiece
FR2540246A1 (en) * 1983-01-28 1984-08-03 Solmer DEVICE FOR DETECTING CRIQUES ON STEEL BRAMS OBTAINED FROM A CONTINUOUS CASTING
GB201413566D0 (en) * 2014-07-31 2014-09-17 V Viz Ltd System for non-destructive detection of internal defects
US20240151627A1 (en) * 2022-11-09 2024-05-09 The Boeing Company Porosity detection for composite materials using inductive resonance

Also Published As

Publication number Publication date
FR2390729B1 (en) 1980-03-14
FR2390729A1 (en) 1978-12-08

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: DE DIETRICH & CIE

Effective date: 19840423