Iron-based mixed powder for powder metallurgy and sintered body
US7300490B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2005 |
| Grant date | Nov 27, 2007 |
| Priority date | — |
| Expiry date | Nov 12, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F1/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An iron-based mixed powder for powder metallurgy having improved machinability, without degrading the mechanical property of a sintered body made by compacting the iron-based mixed power. The iron-based mixed powder comprises a mixture of an iron-based powder, a powder for an alloy, a powder for machinability improvement, and a lubricant. The powder for machinability improvement comprises a manganese sulfide powder, and at least one selected from the group consisting of a calcium phosphate powder and a hydroxy apatite powder. Alternatively the powder for machinability improvement has an average particle diameter of 1 to 60 micrometers and comprise manganese sulfide powder and calcium fluoride powder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.