Invention Application
WO1993003874A1 POWDER-METALLURGICAL COMPOSITION HAVING GOOD SOFT MAGNETIC PROPERTIES
审中-公开
具有良好软磁性能的粉末冶金组合物
- Patent Title: POWDER-METALLURGICAL COMPOSITION HAVING GOOD SOFT MAGNETIC PROPERTIES
- Patent Title (中): 具有良好软磁性能的粉末冶金组合物
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Application No.: PCT/SE1992000587Application Date: 1992-08-26
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Publication No.: WO1993003874A1Publication Date: 1993-03-04
- Inventor: HÖGANÄS AB
- Applicant: HÖGANÄS AB , JANSSON, Patricia
- Assignee: HÖGANÄS AB,JANSSON, Patricia
- Current Assignee: HÖGANÄS AB,JANSSON, Patricia
- Priority: SE9102442-2 19910826
- Main IPC: B22F01/00
- IPC: B22F01/00
Abstract:
The invention relates to an iron-based powder composition which, in addition to a substantially non-alloyed Fe-powder, comprises Sn and P, optionally lubricant and at most 1.0 % by weight of impurities. In the composition, Sn and P are present as an SnP-alloy in powder form, or else Sn is present in the form of a metallic powder and P is present in the form of a ferrophosphorous powder, the Sn-content, based on the total iron-based powder composition, being at least 4.5 % by weight, and the individual particles, which contain Sn and P, being present as particles substantially separate from the particles in the non-alloyed Fe-powder. Finally, Sn and P may also be present as an SnP-alloy in powder form, and Sn may also be present as a metallic powder. This composition may optionally also contain P as a ferrophophorous powder.
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