| |
|
Inventor: Smith; Colin G.
Address: Solihull, GB2
No. of patents: 2
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 4713122 |
Production of thin flat articles with hardened surfaces |
December 15, 1987 |
| Thin metal articles of pre-determined shape are given a first treatment to provide a hardened surface and a second treatment to correct distortion caused by the hardening treatment. The hardening is provided an epsilon nitride layer and the corrective treatment is a heat treatment at |
| 4563223 |
Corrosion resistant steel components and method of manufacture thereof |
January 7, 1986 |
| To impart good salt spray corrosion resistance to alloy steel components, such components are gas nitrocarburized at 550.degree. C. to 800.degree. C. to produce an epsilon layer, oxidized to produce an Fe.sub.3 O.sub.4 layer not more than 1 micrometer thick, quenched into an oil/water |
|
|
|
