Method and device for eliminating compression and distortion of wax patterns in lost-wax casting
US5655592A · kind A · utility
8Cited by
1References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1994 |
| Grant date | Aug 12, 1997 |
| Priority date | — |
| Expiry date | Sep 29, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D25/026
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Compression and distortion on a wax pattern during curing are eliminated by employing a thermochromatic dye which changes color when investment material sets. By monitoring the dye, the set investment material can be removed from the assembly before curing, eliminating compression forces on the wax pattern from the exothermic curing process expanding the investment material against the constraints of the assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.