煤矿井下用聚乙烯涂层复合钢管试制过程问题分析

Analysis of the problem of trial-production process of the polyethylene-coated composite pipe for underground coal mine

针对煤矿井下用聚乙烯涂层复合钢管试制过程中出现的附着力、颈缩与起壳以及表面物理强度匹配等问题,通过理论分析和现场试验,找出解决问题的途径,从而使产品试制取得成功。

Contraposing the problems such as adhesion, necking and shelling, and the matching of surface physical strength, a way to solve the problem is found. And the trial production is successful.