PULVRIGER ZUSATZ ZUR VERBESSERUNG DER BEARBEITBARKEIT UND EISEN- ODER STAHLPULVER, DIE DIESEN PULVRIGEN ZUSATZ ENTHALTEN

• Main Authors: ENGDAHL, PER, S-263 34 HOEGANAES, SE, PERSSON, MATS, B-1050 BRUSSELS, BE, SPASICAGAN, S-252 46 HELSINGBORG, SE
• Format: Patent
• Language: German
• Published: 21.09.1995
• Edition: 6
• Subjects: ALLOYS; CASTING; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WORKING METALLIC POWDER

A machinability improving and/or wear-resistance improving supplementary powder for an iron- or steel-based powder for use in powder-metallurgical production of blanks consists of MnS and Te or a Te-compound and/or Se or an Se-compound. For the supplementary powder, an iron or steel powder containing the same and a blank which is powder-metallurgically produced from the iron or steel powder, the weight ratio between MnS and Te should be in the range of 10-2000, the weight ratio between MnS and Se should be in the range of 10-1000, and, when both Te and Se are used, the limiting values of this range should be doubled.