METHOD FOR ELECTRIC-CONTACT SINTERING OF POWDERS WITH STRENGTHENING PARTICLES

FIELD: powder metallurgy, namely processes for making powder materials with strengthening particles, possibly in machine engineering, automobile making and other industry branches. ^ SUBSTANCE: method of electric-contact sintering of powders with strengthening particles comprises steps of mixing pow...

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Hauptverfasser:	MORGUN I.D, KUSKOV V.N, ROZHKOVA T.V, SMOLIN N.I
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CASTING MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	FIELD: powder metallurgy, namely processes for making powder materials with strengthening particles, possibly in machine engineering, automobile making and other industry branches. ^ SUBSTANCE: method of electric-contact sintering of powders with strengthening particles comprises steps of mixing powders with particle size no more than 80 micrometers; using strengthening particles whose size consist 1/4 -1/2 of metallic particle size; preliminarily compacting mixture; then simultaneously performing single-stage sintering by means of electric current with density 5.5 - 51.0 A/mm2 and pressing under pressure 5 - 10 MPa. ^ EFFECT: enhanced wear resistance and strength of powder materials. ^ 1 tbl, 6 ex