Method of manufacturing a chromed bumper
US6881282B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 1, 2002 |
| Grant date | Apr 19, 2005 |
| Priority date | — |
| Expiry date | Mar 1, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49986
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention is a method for preparing and chroming a blank of steel. This method reduces time and cost to the assembly process. The method includes the following steps: heating steel slabs to a pre-determined temperature, hot rolling the steel slabs to a pre-determined width/thickness; spraying the steel strips with water to remove scaling; pickling the steel strips in acid to remove scaling; rinsing and drying the strips; cold rolling the strips with an electron beam textured tandem mill into strips having a pre-determined thickness; cold rolling the strips with an electron beam temper mill; and stamping the steel strips into a bumper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.