专利名称:Method for manufacturing erosion-resistant
wearing parts and a wearing part
发明人:Jari Liimatainen,Mikko Malkamaki,Kari
Peltomaki,Jukka Lehtonen
申请号:US10651979申请日:20030902
公开号:US20040142200A1公开日:20040722
摘要:A method of manufacturing erosion-resistant wearing parts and a wearing partare disclosed, whereby the wearing part manufactured according to the inventioncomprises at least one hard powder composition (A) and at least one ductile powdercomposition (B) that together are densified in a single pressing step into an entirelydense product. According to the method, the temperature coefficient of the hardpowder composition (A) is controlled by keeping the temperature coefficient of the hardpowder composition smaller than that of the encapsulating powder composition (B),whereby the hard powder composition (A), with the exception of the outer erosion-subjected surface of the wearing part, remains entirely encapsulated by powder
composition (B) so effectively that the imposed eroding forces cannot essentially extrudethe hard powder composition (A) out from the wearing part through its erosion-subjected outer surface.
申请人:METSO POWDERMET OY
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