Method for making heat treated stainless hydraulic components
US6589363B2 · kind B2 · utility
1Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2000 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Dec 13, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2261/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A stainless steel hydraulic component and method for making same hard turns a pre-heat treated stainless steel material, preferably a 400 series stainless steel material, provided in bar stock form in a single machining loading. Stainless steel hydraulic valve components made therefrom have shown improved leakage rate performance with the performance being fairly constant over a period of time for providing a longer functional life for the hydraulic valve component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.