JPS5716348A - Nondestructive measuring method and equipment for hardened layer - Google Patents

Nondestructive measuring method and equipment for hardened layer

Info

Publication number
JPS5716348A
JPS5716348A JP9062880A JP9062880A JPS5716348A JP S5716348 A JPS5716348 A JP S5716348A JP 9062880 A JP9062880 A JP 9062880A JP 9062880 A JP9062880 A JP 9062880A JP S5716348 A JPS5716348 A JP S5716348A
Authority
JP
Japan
Prior art keywords
propagation time
head
receiving
ultrasonic
propagation
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
JP9062880A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6326340B2 (enrdf_load_stackoverflow
Inventor
Hirotoshi Kino
Soji Sasaki
Tomiyuki Ooyashiki
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9062880A priority Critical patent/JPS5716348A/ja
Publication of JPS5716348A publication Critical patent/JPS5716348A/ja
Publication of JPS6326340B2 publication Critical patent/JPS6326340B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G01N29/04—Analysing solids
    • G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/0289—Internal structure, e.g. defects, grain size, texture

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material 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 Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
JP9062880A 1980-07-04 1980-07-04 Nondestructive measuring method and equipment for hardened layer Granted JPS5716348A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9062880A JPS5716348A (en) 1980-07-04 1980-07-04 Nondestructive measuring method and equipment for hardened layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9062880A JPS5716348A (en) 1980-07-04 1980-07-04 Nondestructive measuring method and equipment for hardened layer

Publications (2)

Publication Number Publication Date
JPS5716348A true JPS5716348A (en) 1982-01-27
JPS6326340B2 JPS6326340B2 (enrdf_load_stackoverflow) 1988-05-30

Family

ID=14003740

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9062880A Granted JPS5716348A (en) 1980-07-04 1980-07-04 Nondestructive measuring method and equipment for hardened layer

Country Status (1)

Country Link
JP (1) JPS5716348A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01161144A (ja) * 1987-12-16 1989-06-23 Japan Steel Works Ltd:The 円柱材の焼入硬化深度測定方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2993361B1 (fr) * 2012-07-10 2014-08-01 Snecma Procede de caracterisation d'un objet comprenant au moins localement un plan de symetrie

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53126992A (en) * 1977-04-12 1978-11-06 Nippon Steel Corp Discriminating method of casting structure by ultrasonic waves

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53126992A (en) * 1977-04-12 1978-11-06 Nippon Steel Corp Discriminating method of casting structure by ultrasonic waves

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01161144A (ja) * 1987-12-16 1989-06-23 Japan Steel Works Ltd:The 円柱材の焼入硬化深度測定方法

Also Published As

Publication number Publication date
JPS6326340B2 (enrdf_load_stackoverflow) 1988-05-30

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