Particulate CaF.sub.2 agent for improving the machinability of sintered iron-based powder
US5631431A · kind A · utility
17Cited by
20References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 23, 1994 |
| Grant date | May 20, 1997 |
| Priority date | — |
| Expiry date | Nov 23, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C33/0228
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to an additive for improving the machinability of iron-based powder compositions. The additive contains calcium fluoride particles which are included in an amount of 0.1-0.6% by weight in the powder composition. The invention further relates to powder compositions containing the additives indicated, as well as sintered products produced from the powder compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.