Metal powder composition and preparation thereof
US7255724B2 · kind B2 · utility
1Cited by
12References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2004 |
| Grant date | Aug 14, 2007 |
| Priority date | — |
| Expiry date | Jul 11, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2998/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention concerns an improved segregation-resistant and dust-resistant metallurgical composition for making compacted parts, comprising at least about 80 percent by weight of an iron or iron-based powder; at least one alloying powder; and (c) about 0.05 to about 2 percent by weight of a binding/lubricating combination of polyethylene wax and ethylene bis-stearamide, the polyethylene wax having a weight average molecular weight below about 1000 and a melting point below that of ethylene bis-stearamide, and being present in amount between 10 and 90% by weight of the binding/lubricating combination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.