论文部分内容阅读
通过对煤矿井下用金属和塑料管材系列产品优缺点分析,提出了具有钢管和塑料管材优点的煤矿井下用聚乙烯涂层复合钢管研制课题,以聚乙烯粉末给水涂层复合钢管为基础,研制出满足煤矿井下使用的内外涂层复合钢管。
Based on the analysis of advantages and disadvantages of metal and plastic pipe products in coal mine, the research topic of polyethylene coated composite steel pipe with coal pipe and plastic pipe has been put forward. Based on polyethylene powder and water coating composite steel pipe, a Meet the use of coal mine inside and outside the coating composite steel pipe.