FIELD: process engineering.
SUBSTANCE: invention relates to machine building and may be used in production of reinforced tubes. Proposed device comprises outer case, inner core, thin shell arranged there between, and conical gates to seal cavity between thin-wall shell and inner core. Note here that said cavity serves to accommodate workpiece fitted in squeezer inserts. Note also that device is furnished with two lock rings with inner cylindrical bore changing into open taper press-fitted onto thin-wall shell tightly to tube billet ends so that inner bore taper is located on opposite side.
EFFECT: higher yield and quality.
2 dwg
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