发明授权
- 专利标题: Hose construction
- 专利标题(中): 软管施工
-
申请号: US268589申请日: 1988-11-08
-
公开(公告)号: US4952262A公开(公告)日: 1990-08-28
- 发明人: Donald E. Washkewicz , Harold Belofsky
- 申请人: Donald E. Washkewicz , Harold Belofsky
- 申请人地址: OH Cleveland
- 专利权人: Parker Hannifin Corporation
- 当前专利权人: Parker Hannifin Corporation
- 当前专利权人地址: OH Cleveland
- 主分类号: B29C47/02
- IPC分类号: B29C47/02 ; B29D23/00 ; F16L11/08 ; B32B31/00
摘要:
A method of hose construction and product formed thereby consisting of an extruded thermoplastic core tube having ferrometallic wire reinforcement windings thereon which are closely wound and providing minute spaces between the wires. The reinforced core tube structure is elevated in temperature by an induction heater which concentrates heating in the wire reinforcement and transfers heat from the wire by conduction to the outer periphery of the core tube. Supplemental conventional heaters may be used in conjunction therewith to achieve substantial temperature elevation of the wire reinforcement. Thereafter a thermoplastic cover is pressure extruded over the heated wire reinforcement and forced through the minute spaces in the reinforcement into engagement with the core tube periphery. Cool-down establishes a bond between cover, wires and core tube and a mechanically locked, integral composite hose structure.