METHOD FOR PARAFFIN PLASTICIZING OF CHARGE Russian patent published in 2006 - IPC B22F1/00 B22F3/02 C22C29/00 

FIELD: powder metallurgy, namely preparation of hard-alloy charge.

SUBSTANCE: method for plasticizing charge with paraffin comprises steps of preparing mixture containing hard-alloy components; adding paraffin and diluting agent to prepared mixture; using gasoline as diluting agent while dispersing paraffin in gasoline in quantity no more than 5%. Quantity of paraffin in relation to quantity of hard-alloy components is in range 0.5 - 1%. Hard alloy mixture with gasoline-dispersed paraffin is prepared in cavitation zone of ultrasound field.

EFFECT: improved density and strength of charge.

3 dwg