DE2934886D2 - Method and apparatus for indicating and eliminating defects on metal slabs - Google Patents

Method and apparatus for indicating and eliminating defects on metal slabs

Info

Publication number
DE2934886D2
DE2934886D2 DE79EP7900009T DE2934886T DE2934886D2 DE 2934886 D2 DE2934886 D2 DE 2934886D2 DE 79EP7900009 T DE79EP7900009 T DE 79EP7900009T DE 2934886 T DE2934886 T DE 2934886T DE 2934886 D2 DE2934886 D2 DE 2934886D2
Authority
DE
Germany
Prior art keywords
indicating
eliminating defects
metal slabs
slabs
eliminating
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
DE79EP7900009T
Other languages
German (de)
Inventor
P Karlsson
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.)
SSAB Svenskt Stal AB
Original Assignee
SSAB Svenskt Stal AB
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 SSAB Svenskt Stal AB filed Critical SSAB Svenskt Stal AB
Application granted granted Critical
Publication of DE2934886D2 publication Critical patent/DE2934886D2/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P6/00—Restoring or reconditioning objects
    • B23P6/04—Repairing fractures or cracked metal parts or products, e.g. castings
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details

Landscapes

  • Chemical & Material Sciences (AREA)
  • Immunology (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Pathology (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Continuous Casting (AREA)
  • Forging (AREA)
  • Brushes (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Metal Rolling (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
DE79EP7900009T 1978-02-06 1979-02-06 Method and apparatus for indicating and eliminating defects on metal slabs Expired DE2934886D2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7801369A SE7801369L (en) 1978-02-06 1978-02-06 AUTOMATIC ERROR INDICATION AND ERROR REMOVAL OF METALLIC SUBSTANCES

Publications (1)

Publication Number Publication Date
DE2934886D2 true DE2934886D2 (en) 1980-12-18

Family

ID=20333880

Family Applications (1)

Application Number Title Priority Date Filing Date
DE79EP7900009T Expired DE2934886D2 (en) 1978-02-06 1979-02-06 Method and apparatus for indicating and eliminating defects on metal slabs

Country Status (12)

Country Link
JP (1) JPS55500087A (en)
BE (1) BE873928A (en)
DE (1) DE2934886D2 (en)
DK (1) DK47779A (en)
FI (1) FI790266A (en)
FR (1) FR2416081A1 (en)
GB (1) GB2035853A (en)
IT (1) IT1188753B (en)
NL (1) NL7900751A (en)
NO (1) NO790343L (en)
SE (1) SE7801369L (en)
WO (1) WO1979000592A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3002866A1 (en) * 1980-01-28 1981-07-30 Th. Kieserling & Albrecht, 5650 Solingen METHOD FOR ELIMINATING SURFACE DEFECTS ON WAYRM-ROLLED, METAL PROFILES AND LONG-EDGED CASTING WORKPIECES AND SYSTEM FOR IMPLEMENTING THE METHOD

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1367783A (en) * 1971-09-21 1974-09-25 Impresa Bocami Di Garibaldo At Automatic selective apparatus for scarfing semifinished products
DD95542A1 (en) * 1972-03-23 1973-02-12
DE2431173A1 (en) * 1974-06-28 1976-01-15 Graenges Staal Oxeloesund PROCESS AND DEVICE FOR PRODUCING METALLIC BLANKS, IN PARTICULAR STEEL SLABS, THAT ARE SUBSTANTIALLY FREE OF DEFECTS IN AT LEAST A DETERMINED SURFACE AREA
JPS514047A (en) * 1974-07-01 1976-01-13 Nippon Steel Corp Kinzokuhenno hyomenketsukanbuteireho
DE2439662C3 (en) * 1974-08-19 1978-10-12 Graenges Oxeloesunds Jaernverk Ab, Oxeloesund (Schweden) Device for the non-destructive testing of metallic blanks for surface defects

Also Published As

Publication number Publication date
DK47779A (en) 1979-08-07
JPS55500087A (en) 1980-02-14
WO1979000592A1 (en) 1979-08-23
SE7801369L (en) 1979-08-24
IT7909335A0 (en) 1979-02-05
NL7900751A (en) 1979-08-08
NO790343L (en) 1979-08-07
GB2035853A (en) 1980-06-25
IT1188753B (en) 1988-01-28
FR2416081A1 (en) 1979-08-31
BE873928A (en) 1979-05-29
FI790266A (en) 1979-08-07

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