IT1114099B - Dispositivo di misura di durezza a penetrazione a lettura digitale - Google Patents

Dispositivo di misura di durezza a penetrazione a lettura digitale

Info

Publication number
IT1114099B
IT1114099B IT48248/79A IT4824879A IT1114099B IT 1114099 B IT1114099 B IT 1114099B IT 48248/79 A IT48248/79 A IT 48248/79A IT 4824879 A IT4824879 A IT 4824879A IT 1114099 B IT1114099 B IT 1114099B
Authority
IT
Italy
Prior art keywords
measuring device
hardness measuring
digital reading
penetration hardness
penetration
Prior art date
Application number
IT48248/79A
Other languages
English (en)
Other versions
IT7948248A0 (it
Original Assignee
Law Engineers K J
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 Law Engineers K J filed Critical Law Engineers K J
Publication of IT7948248A0 publication Critical patent/IT7948248A0/it
Application granted granted Critical
Publication of IT1114099B publication Critical patent/IT1114099B/it

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/40—Investigating hardness or rebound hardness
    • G01N3/42—Investigating hardness or rebound hardness by performing impressions under a steady load by indentors, e.g. sphere, pyramid
    • G01N3/44—Investigating hardness or rebound hardness by performing impressions under a steady load by indentors, e.g. sphere, pyramid the indentors being put under a minor load and a subsequent major load, i.e. Rockwell system

Landscapes

  • Physics & Mathematics (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 Strength Of Materials By Application Of Mechanical Stress (AREA)
IT48248/79A 1978-09-18 1979-03-07 Dispositivo di misura di durezza a penetrazione a lettura digitale IT1114099B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/943,315 US4182164A (en) 1978-09-18 1978-09-18 Penetration hardness tester with digital readout

Publications (2)

Publication Number Publication Date
IT7948248A0 IT7948248A0 (it) 1979-03-07
IT1114099B true IT1114099B (it) 1986-01-27

Family

ID=25479432

Family Applications (1)

Application Number Title Priority Date Filing Date
IT48248/79A IT1114099B (it) 1978-09-18 1979-03-07 Dispositivo di misura di durezza a penetrazione a lettura digitale

Country Status (3)

Country Link
US (1) US4182164A (it)
CA (1) CA1088774A (it)
IT (1) IT1114099B (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4380926A (en) * 1981-01-22 1983-04-26 The United States Of America As Represented By The Secretary Of The Air Force Battery electrode hardness tester
US4534212A (en) * 1983-06-30 1985-08-13 K. J. Law Engineers, Inc. Fully automatic penetration hardness tester
US4621523A (en) * 1983-10-24 1986-11-11 Aluminum Company Of America Rapid determination of metal strength from hardness tests
CH662887A5 (fr) * 1984-03-01 1987-10-30 Page Wilson Corp Machine de test pour mesurer la durete d'un materiau.
US4667509A (en) * 1984-03-01 1987-05-26 Page-Wilson Corporation Digital tester for measuring the hardness of the material
DE3830816C2 (de) * 1988-09-09 1997-04-30 Instron Corp Verfahren und Vorrichtung zur Messung der Härte eines Prüfkörpers
JP2731864B2 (ja) * 1989-09-05 1998-03-25 新日本製鐵株式会社 押込型硬度計
US5133210A (en) * 1990-02-06 1992-07-28 The University Of Maryland Thermal expansion driven indentation stress-strain system
DE4341049A1 (de) * 1993-12-02 1995-06-08 Heinrich Bareiss Pruefgeraeteb Verfahren und Vorrichtung zur Ermittlung der Buchholzhärte

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2554206A (en) * 1950-02-04 1951-05-22 Gen Electric Automatic hardness tester
US2858696A (en) * 1956-01-13 1958-11-04 Gen Motors Corp Hardness testing apparatus
SE323535B (it) * 1967-08-11 1970-05-04 Svenska Precisionsverktyg Ab

Also Published As

Publication number Publication date
IT7948248A0 (it) 1979-03-07
CA1088774A (en) 1980-11-04
US4182164A (en) 1980-01-08

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