Fe-based sintered alloy manufacturing process, Fe-based sintered alloy manufactured through thereof and bearing cap
US5967110A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1998 |
| Grant date | Oct 19, 1999 |
| Priority date | — |
| Expiry date | Apr 23, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F3/1003
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
There is disclosed a method for manufacturing an Fe-based sintered alloy which is superb in machinability. This process comprises the steps of coating a paste-like coating agent including a compound of boron to a surface of a compact of Fe-based or Fe, Cu-based sintered alloy powder including carbon or a pre-sintered compact obtained by heating the compact at a diffusion temperature or less of carbon, and sintering a resultant compact or a pre-sintered compact at a diffusion temperature or more of carbon. An Fe-based sintered alloy manufactured through this process and a bearing cap made of such an Fe-based sintered alloy are also disclosed. In the invention, a film including a compound of boron and pyrolytic resin can be used instead of the paste-like coating agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.