FIELD: metallurgy.
SUBSTANCE: invention relates to the field of metal forming, in particular, to the restoration of a heat-shrinking deforming tool for rotary drawing of hollow axisymmetric shells of low-carbon, high-carbon and alloyed steels. Worn layer of rollers and mandrels is removed by means of machining. After machining with the formation of the initial profile on the working surfaces of the deforming tool put fluorine-containing anti-friction coating in the form of perfluoric acid grade 6 IFC - 180.
EFFECT: increased accuracy and quality of the processed surface of the shells and increased productivity of the rotary drawing.
4 cl, 1 dwg
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