FIELD: process engineering.
SUBSTANCE: invention relates to metal forming, particularly, to production of metal containers by forming of metal walls with closed-cycle fluid cooling system. Proposed device comprises drawing die, piston and assembly to drive said piston along tubular assembly channel. Tubular assembly has fluid inlet hole. Tubular assembly channel surface has grooves for coolant flow between said channel and around piston outer surface and seal to minimise oil leaks in coolant flow. Cooling fluid is directed back in the tank via heat exchanger while whatever oil is separated from cooling fluid by oil separator. Then, said oil can be filtered, purified and forced back into working cycle, or removed.
EFFECT: isolation of cooling fluid.
5 cl, 2 dwg
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