发明名称 |
METHOD OF AND DEVICE FOR CONTINUOUS RING SHAPING OF THERMOPLASTIC SHRINKABLE HOSE ENVELOPES |
摘要 |
plastics. SUBSTANCE: according to proposed method inner side of spiral shaped hose envelope is thermally treated in inflated state. Prior to fitting into tool, hose envelope is partially filled with compressed gas at minor gauge pressure. Hose envelope is laid over large part of perimeter of spiral, is heated and is set into motion at different velocities on inner and outer side during its movement along spiral. Ring shape is imparted to envelope. Hot air delivered for heating inner side of hose envelope is uniformly distributed over perimeter of hose envelope. Preset temperature is maintained around hose envelope. Invention contains description of device for implementing the method. It provides continuous shaping of hose envelope of any length to ring with at uniform distribution of temperature around hose envelope. Cost of shaping devices is reduced. EFFECT: provision of ring-shaped thermoplastic hose envelopes. 16 cl, 5 dwg
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申请公布号 |
RU2191693(C2) |
申请公布日期 |
2002.10.27 |
申请号 |
RU19970120120 |
申请日期 |
1997.12.05 |
申请人 |
KALLE NALO GMBKH |
发明人 |
AUF DER KHAJDE DIRK;AUF DER KHAJDE KRISTIAN;VAJNKHAJMER ALOIS;UL'MANN DITER |
分类号 |
A22C13/00;B29C53/08;B29C53/10;B29C53/12;B29K101/12;B29L23/00 |
主分类号 |
A22C13/00 |
代理机构 |
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主权项 |
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地址 |
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