Method of an apparatus for testing the hardness of materials

Details Method of an apparatus for testing the hardness of materials Method of an apparatus for testing the hardness of materials

1976-07-09

1977-07-12

Gill, James J.

Measuring and testing

Hardness

Scleroscope or rebound

73 12, G01N 352

Patent

active

040346030

ABSTRACT:
A method of, and apparatus for, testing the hardness of a material by means of an impact device wherein an impact body having a test tip or point which is either integrated, e.g., connected with, or separate from, the impact body is brought to impact against the material to be tested. There is determined the velocity of the impact body and/or the test tip both directly before and after impact, and there is then formed a characteristic value from both velocities which is utilized as criterion for the hardness of the material.

REFERENCES:
patent: 3453862 (1969-07-01), Elliott et al.
patent: 3538743 (1970-11-01), Glidden
patent: 3879982 (1975-04-01), Schmidt

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