FIELD: metallurgy.
SUBSTANCE: invention concerns obtaining of metal product made of alloy on the basis of copper, tractable by turning, cutting or rolling. Blank made of alloy, containing, wt %: nickel 1-20, tin 1-20, lead 0.2-3, copper - the rest, is received by continuous casting with following forging, casting into molds, spray-type moulding or semicontinuous casting with following extrusion. Thermal treatment of blank by homogenizing annealing is implemented at temperature of single-phase structure existing with cooling with speed, providing prevention of cracking and restriction of two-phase structure moulding. Product machinability index from declared alloys exceed 80% relative to bronze in concordance with standard ASTM C36000 and can reach even 90%.
EFFECT: obtaining of metal product from alloy on the basis of copper, tractable by turning, cutting or rolling.
14 cl, 5 tbl, 4 ex
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