Method of treating a metal element for an automobile
US9089886B2 · kind B2 · utility
0Cited by
4References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 23, 2011 |
| Grant date | Jul 28, 2015 |
| Priority date | — |
| Expiry date | Jan 9, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23G1/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for treating a metal element for an automobile includes hardening the metal element so as to obtain a press hardened metal element. Scale from the press hardened metal element are removed by placing the press hardened metal element in an ultrasonic liquid and preforming an ultrasonic process thereon so as to obtain a de-scaled press hardened metal element. The ultrasonic liquid is an aqueous solution comprising an organic carboxylic acid in a concentration of from 0.1 to 10 vol.-%. The de-scaled press hardened metal element is coated in a coating process with an anti-corrosion coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.