Method for sintering a carbon steel part using a hydrocolloid binder as carbon source
US6967001B2 · kind B2 · utility
0Cited by
8References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 26, 2001 |
| Grant date | Nov 22, 2005 |
| Priority date | — |
| Expiry date | Apr 26, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2999/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention refers to a new method for preparing sintered structural parts of carbon or tool steels or high speed steel having a carbon content of up to 2% by weight, wherein an agglomerated spherical powder comprising at least 0.5% of a thermo-reversible hydrocolloid is pressed to a green body of high density which is then heated at 450–650° C. to remove the non-carbon content of the hydrocolloid and subsequently sintered at about 1100–1400° C. to structural parts having high strength properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.