| 摘要 |
<p>PURPOSE:To enhance a dimensional accuracy of a lining in a use application to a slide pipe or the like of a slide-type pipe joint having a rust proof function with respect to a method for producing a resin-lined pipe by coating the inner, outer, and end faces of a metal pipe with a synthetic resin. CONSTITUTION:A pair of core rods 6, 7 consisting of small-diameter parts 6a, 7a having a diameter slightly smaller than the inner diameter of a metal pipe 1 and large-diameter parts 6b, 7b having a diameter larger than those are set in a mold 2 for setting the metal pipe 1 so that the small-diameter parts 6a, 7a are butted to each other at the top parts thereof in the metal pipe 1. A synthetic resin is injection molded in spaces 9, 10, 11 formed on the inner and both end faces of the metal pipe 1.</p> |
