Method of heat treating using eddy current temperature determination
US4675057A · kind A · utility
10Cited by
5References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 28, 1986 |
| Grant date | Jun 23, 1987 |
| Priority date | — |
| Expiry date | Feb 28, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D1/54
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method and apparatus for the heat treating of quench hardenable ferrous alloy workpieces utilizing periodic eddy current excitation and reflection to determine the in-line cooling rate from the critical temperature of the workpiece material and comparing the in-line cooling rate against a standard rate for establishing acceptance or rejection of the quenched workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.