Method of an apparatus for testing the hardness of materials
US4034603A · kind A · utility
22Cited by
3References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1976 |
| Grant date | Jul 12, 1977 |
| Priority date | — |
| Expiry date | Jul 9, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0083
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.