外pe內ep給水涂塑鋼管整體構成(cheng)為(wei)：工作鋼(gang)(gang)(gang)管(guan)(guan)(guan)可采用(yong)(yong)螺旋(xuan)管(guan)(guan)(guan)、無縫管(guan)(guan)(guan)或直(zhi)(zhi)縫管(guan)(guan)(guan)，外(wai)(wai)壁防(fang)腐層采用(yong)(yong)為(wei)聚乙烯粉末;鋼(gang)(gang)(gang)管(guan)(guan)(guan)內壁為(wei)環氧樹脂粉末。生產(chan)工藝鋼(gang)(gang)(gang)管(guan)(guan)(guan)內外(wai)(wai)壁進行拋丸噴(pen)砂，可使粉末與(yu)鋼(gang)(gang)(gang)管(guan)(guan)(guan)粘合牢固(gu)，鋼(gang)(gang)(gang)管(guan)(guan)(guan)加熱到合適溫(wen)度外(wai)(wai)壁使用(yong)(yong)硫化(hua)槽滾涂(tu)的方式(shi)內壁使用(yong)(yong)噴(pen)涂(tu)方式(shi)經常溫(wen)固(gu)化(hua)形成(cheng)鋼(gang)(gang)(gang)塑復合型(xing)管(guan)(guan)(guan)材。在輸(shu)水管(guan)(guan)(guan)道工程中多(duo)采用(yong)(yong)大口(kou)(kou)徑螺旋(xuan)鋼(gang)(gang)(gang)管(guan)(guan)(guan)，連接方式(shi)可采用(yong)(yong)承插口(kou)(kou)、法蘭、直(zhi)(zhi)接焊(han)接。