Wear-resistant member for use in an internal combustion engine
US4583502A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 1980 |
| Grant date | Apr 22, 1986 |
| Priority date | — |
| Expiry date | Feb 20, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12139
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A wear-resistant member and method for producing the same which member may form a movable member in an internal combustion engine which is subjected to high pressure such as a rocker arm, tappet, cam, valve or valve seat. The member is formed as a combination of a ferrous sintered body and a ferrous base body having a common surface. The sintered body is formed from a compressed powder body disposed in contact with the ferrous base body. The powder body, in a preferred embodiment, consists of 0.5 to 7.0% by weight carbon, 0.1 to 5.0% phosphorus, the balance being iron, and having a porosity of 12 to 20% by volume at least 40% of which is pores having a pore size of not more than 300 .mu.. The combined powder body and ferrous base body are heated to a temperature higher than the liquid-phase temperature of the powder body but lower than the melting point of the ferrous body to sinter the powder body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.