FIELD: process engineering.
SUBSTANCE: invention relates to production of elastic tubular cases from polymers. Proposed method comprises the stages that follow: forming of tape 1 around sealing rod, bringing of tape ends 3, 4 in contact, forming sealing zone 5 by heating, applying the pressure and cooling said tape ends 3, 4. Note here that preliminary improvement of tubular case roundness is ensured by drawing the sealing zone 5. Note also that further improvement of tubular case roundness is performed by heating the tape 1 beyond aforesaid sealing zone 5.
EFFECT: improvement of tubular case roundness.
15 cl, 4 dwg
