GB2007358A - Method of flaw detection in metal members - Google Patents

Method of flaw detection in metal members

Info

Publication number
GB2007358A
GB2007358A GB7843159A GB7843159A GB2007358A GB 2007358 A GB2007358 A GB 2007358A GB 7843159 A GB7843159 A GB 7843159A GB 7843159 A GB7843159 A GB 7843159A GB 2007358 A GB2007358 A GB 2007358A
Authority
GB
United Kingdom
Prior art keywords
flaw detection
metal members
heating
flaws
temperature
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.)
Granted
Application number
GB7843159A
Other versions
GB2007358B (en
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.)
Elkem ASA
Original Assignee
Elkem Spigerverket AS
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 Elkem Spigerverket AS filed Critical Elkem Spigerverket AS
Publication of GB2007358A publication Critical patent/GB2007358A/en
Application granted granted Critical
Publication of GB2007358B publication Critical patent/GB2007358B/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
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/72—Investigating presence of flaws

Landscapes

  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Sewing Machines And Sewing (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

The invention provides a method of detecting flaws in metal items comprising heating them by high frequency induction surface heating and measuring the temperature distribution over the surface by infra-red detector means, thus to detect discontinuities in the temperature of the surface and the presence of flaws.
GB7843159A 1977-11-04 1978-11-03 Method of flaw detection in metal members Expired GB2007358B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO773779A NO142594C (en) 1977-11-04 1977-11-04 PROCEDURE FOR SEWING REMARKS.

Publications (2)

Publication Number Publication Date
GB2007358A true GB2007358A (en) 1979-05-16
GB2007358B GB2007358B (en) 1982-06-16

Family

ID=19883825

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7843159A Expired GB2007358B (en) 1977-11-04 1978-11-03 Method of flaw detection in metal members

Country Status (15)

Country Link
JP (1) JPS5479093A (en)
AU (1) AU516509B2 (en)
BR (1) BR7807242A (en)
CA (1) CA1132369A (en)
CS (1) CS212308B2 (en)
DE (1) DE2848099A1 (en)
ES (1) ES474775A1 (en)
FR (1) FR2408138A1 (en)
GB (1) GB2007358B (en)
IT (1) IT1202789B (en)
NO (1) NO142594C (en)
PL (1) PL117226B1 (en)
RO (1) RO76350A (en)
SE (1) SE438735B (en)
ZA (1) ZA785758B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2294604A (en) * 1994-10-24 1996-05-01 Marconi Gec Ltd Thermal imaging using electro-magnetic induction

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO164133C (en) * 1985-07-15 1993-10-26 Svein Otto Kanstad PROCEDURE AND APPARATUS FOR CHARACTERIZATION AND CONTROL OF SUBSTANCES, MATERIALS AND OBJECTS
DE3820862A1 (en) * 1988-06-21 1989-12-28 Soelter Hans Joachim Dipl Phys METHOD AND DEVICE FOR CONTACTLESS EXAMINATION OF SURFACES AND INTERNAL STRUCTURES OF A FIXED TEST BODY
NO166424C (en) * 1989-01-10 1991-07-17 Elkem Technology PROCEDURE FOR THE DETECTION OF SURFACE CRACKS IN METAL TOPICS.
DE19623159C2 (en) * 1996-06-10 2001-03-15 Fraunhofer Ges Forschung Method and device for assessing a body by detecting a temperature field of the body
JP6351251B2 (en) * 2013-12-18 2018-07-04 キヤノン株式会社 Fixing apparatus and image forming apparatus including the fixing apparatus

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1869336A (en) * 1930-05-29 1932-07-26 Forest Alfred V De Thermal method of testing metallic bodies
US3020745A (en) * 1958-11-13 1962-02-13 Smith Corp A O Method of flaw detection in a metal member
US3222917A (en) * 1962-03-07 1965-12-14 Gabb Special Products Inc Non-destructive testing of objects
US3206603A (en) * 1962-08-16 1965-09-14 Gen Electric Infrared flaw detector method and apparatus
US3451254A (en) * 1965-07-26 1969-06-24 Automation Ind Inc Nondestructive tester
US3886362A (en) * 1973-04-09 1975-05-27 Mikhail Mikhailovi Miroshnikov Method and apparatus for thermal examination of the interior surface of annular stator packs for electrical machines
JPS5150781A (en) * 1974-10-29 1976-05-04 Nippon Steel Corp Netsukankozaino hyomenketsukankenshutsuhoho
JPS5816143B2 (en) * 1975-06-26 1983-03-29 新日本製鐵株式会社 The Golden Pig
LU77479A1 (en) * 1976-06-08 1977-09-19

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2294604A (en) * 1994-10-24 1996-05-01 Marconi Gec Ltd Thermal imaging using electro-magnetic induction
GB2294604B (en) * 1994-10-24 1999-04-28 Marconi Gec Ltd Imaging method and system

Also Published As

Publication number Publication date
GB2007358B (en) 1982-06-16
NO142594C (en) 1980-09-10
PL210668A1 (en) 1979-07-16
IT1202789B (en) 1989-02-09
BR7807242A (en) 1979-05-15
IT7829334A0 (en) 1978-10-31
SE438735B (en) 1985-04-29
SE7811280L (en) 1979-05-05
FR2408138B1 (en) 1982-01-15
PL117226B1 (en) 1981-07-31
ZA785758B (en) 1980-05-28
AU516509B2 (en) 1981-06-04
CA1132369A (en) 1982-09-28
ES474775A1 (en) 1979-10-16
CS212308B2 (en) 1982-03-26
FR2408138A1 (en) 1979-06-01
AU4137078A (en) 1979-06-21
RO76350A (en) 1981-03-30
JPS5479093A (en) 1979-06-23
NO142594B (en) 1980-06-02
NO773779L (en) 1979-05-07
DE2848099A1 (en) 1979-05-10

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19931103