Process for fabrication of decorative panel
US4084990A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1976 |
| Grant date | Apr 18, 1978 |
| Priority date | — |
| Expiry date | Dec 20, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB44C5/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A method for the fabrication of a decorative panel having a coarse, enlarged crystalline pattern characterized by applying a large rolling force at a draft ratio in excess of the critical draft ratio to a metal sheet; annealing the metal sheet at a temperature in excess of the recrystallization temperature in order to remove deformations caused by the rolling step; applying a prescribed pattern-like strain figures thereto; annealing the metal sheet in an anti-oxidizing atmosphere at a high temperature in excess of the recrystallization temperature in order to allow coarse, enlarged crystals to form; and subsequently etching the surface of the sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.