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Inventor: Smith; John D.
Address: Solihull, GB2
No. of patents: 3
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 4596611 |
Corrosion resistant steel components and method of manufacture thereof |
June 24, 1986 |
| A non-alloy steel component is nitrocarburized at 550.degree. to 720.degree. C. for up to 4 hours in a nitriding gaseous atmosphere e.g. ammonia or ammonia and endothermic or exothermic gas, and is thus exposed to air or other oxidizing atmosphere for 2 to 120 seconds to form an oxid |
| 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 |
| 4496401 |
Corrosion resistant steel components and method of manufacture thereof |
January 29, 1985 |
| A non-alloy steel component is nitrocarburized at 550.degree. to 720.degree. C. for up to 4 hours in a nitriding gaseous atmosphere eg. ammonia or ammonia and endothermic or exothermic gas, and is thus exposed to air or other oxidizing atmosphere for 2 to 120 seconds to form an oxide |
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