Process for manufacturing a shadow mask made of an iron/nickel alloy
US5643697A · kind A · utility
7Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1995 |
| Grant date | Jul 1, 1997 |
| Priority date | — |
| Expiry date | Dec 22, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D6/001
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Shadow mask and process for manufacturing a shadow mask made of an iron/nickel alloy in which: a foil perforated with holes is provided, the foil is subjected to a heat treatment in order to obtain grains whose size, as defined by the ASTM standard, is greater than or equal to ASTM 7, the foil is formed in order to give it the shape of a shadow mask.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.