目录摘要....................................................................................................3前言....................................................................................................31．球墨铸铁管材的发展历史..........................................................42．离心球墨铸铁管材性能特点。..................................................72.1基本性能................................................................................72.2管体强度................................................................................82.3理论爆破水压........................................................................92.4接口安全性试验..................................................................102.5耐腐蚀性..............................................................................122.6接口形式..............................................................................133．离心球墨铸铁管与其竞争管材的比较...................................163.1塑料管..................................................................................173.2铝塑和钢塑复合管..............................................................193.3钢管......................................................................................203.4水泥管..................................................................................213.5玻璃钢管..............................................................................224离心球墨铸铁管防腐涂层...........................................................2314.1外表面喷锌加沥青防护层..................................................244.2聚乙烯套..............................................................................254.3聚乙烯覆膜管......................................................................264.4聚氨酯涂层..........................................................................274.4环氧陶瓷内衬......................................................................28结论..................................................................................................292