不銹鋼焊管生產工藝及操作流程
不銹(xiu)鋼焊(han)管(guan)(guan)(guan)生(sheng)產設備簡(jian)單,容(rong)易(yi)變(bian)換產品規(gui)(gui)格和品種,比同規(gui)(gui)格的(de)無縫管(guan)(guan)(guan)成(cheng)本下(xia)降25%,兩種鋼管(guan)(guan)(guan)的(de)特點比較見表3-17。不銹(xiu)鋼焊(han)管(guan)(guan)(guan)適用(yong)(yong)于具(ju)有一般(ban)(ban)壓力和腐蝕(shi)性(xing)介質及低溫(wen)配(pei)管(guan)(guan)(guan),一般(ban)(ban)外徑為1/4~8in管(guan)(guan)(guan)焊(han)管(guan)(guan)(guan)的(de)成(cheng)型工藝(yi)用(yong)(yong)連續式成(cheng)型機,大于8in管(guan)(guan)(guan)采用(yong)(yong)壓力成(cheng)型或三(san)輥(gun)彎板成(cheng)型機。焊(han)接...