发明名称 Method and apparatus for making post-tensioning tendons for concrete
摘要 A method of making a tendon suitable for use in the post-tensioning of concrete as well as for other applications is disclosed. The method comprises the steps of coating a wire or a multiple-wire strand with a thin coat of a corrosion inhibitor. In the preferred embodiment, the thin coat may be more easily applied by coating the wire or multiple-wire strand with a thick coating of corrosion inhibitor and then removing the surplus amount of the corrosion inhibitor from the outer periphery of the strand, including the interstices, to leave the desired thin coat. A seamless plastic jacket is then formed around the wire or the multiple-wire strand while simultaneously creating a differential pressure across the wall of the seamless plastic jacket to provide a loosely fitting seamless plastic jacket.
申请公布号 US4623504(A) 申请公布日期 1986.11.18
申请号 US19840663584 申请日期 1984.10.22
申请人 SMITH, LARRY F. 发明人 SMITH, LARRY F.
分类号 B29C47/02;E04C5/08;E04G21/12;(IPC1-7):B29C47/02 主分类号 B29C47/02
代理机构 代理人
主权项
地址