給(gei)水用(yong)(yong)螺旋鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)是(shi)指用(yong)(yong)鋼(gang)帶(dai)或鋼(gang)板彎曲變形(xing)為圓形(xing)、方(fang)形(xing)等形(xing)狀后再焊(han)(han)(han)(han)(han)(han)(han)接(jie)(jie)成的(de)、表面(mian)有(you)接(jie)(jie)縫的(de)鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)。按(an)焊(han)(han)(han)(han)(han)(han)(han)接(jie)(jie)方(fang)法(fa)不(bu)同(tong)可分(fen)為電(dian)弧焊(han)(han)(han)(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)、高(gao)(gao)頻或低頻電(dian)阻焊(han)(han)(han)(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)、氣(qi)(qi)焊(han)(han)(han)(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)、爐焊(han)(han)(han)(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)、邦(bang)迪(di)管(guan)(guan)(guan)(guan)(guan)(guan)等。按(an)焊(han)(han)(han)(han)(han)(han)(han)縫形(xing)狀可分(fen)為直縫焊(han)(han)(han)(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)和螺旋焊(han)(han)(han)(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)。電(dian)焊(han)(han)(han)(han)(han)(han)(han)鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)用(yong)(yong)于(yu)石油(you)鉆采(cai)(cai)和機械 制造業等。爐焊(han)(han)(han)(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)可用(yong)(yong)作水煤氣(qi)(qi)管(guan)(guan)(guan)(guan)(guan)(guan)等，大口徑(jing)直縫焊(han)(han)(han)(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)用(yong)(yong)于(yu)高(gao)(gao)壓油(you)氣(qi)(qi)輸送(song)等；螺旋焊(han)(han)(han)(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)用(yong)(yong)于(yu)油(you)氣(qi)(qi)輸送(song)、管(guan)(guan)(guan)(guan)(guan)(guan)樁、橋墩等。焊(han)(han)(han)(han)(han)(han)(han)接(jie)(jie)鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)比(bi)無縫鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)成本(ben)低、生產(chan)(chan)(chan)效率(lv)高(gao)(gao)。直縫焊(han)(han)(han)(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)生產(chan)(chan)(chan)工藝(yi)簡單，生產(chan)(chan)(chan)效率(lv)高(gao)(gao)，成本(ben)低，發展較快。螺旋焊(han)(han)(han)(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)的(de)強度(du)一般(ban)比(bi)直縫焊(han)(han)(han)(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)高(gao)(gao)，能用(yong)(yong)較窄的(de)坯(pi)料(liao)生產(chan)(chan)(chan)管(guan)(guan)(guan)(guan)(guan)(guan)徑(jing)較大的(de)焊(han)(han)(han)(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)，還可以用(yong)(yong)同(tong)樣寬度(du)的(de)坯(pi)料(liao)生產(chan)(chan)(chan)管(guan)(guan)(guan)(guan)(guan)(guan)徑(jing)不(bu)同(tong)的(de)焊(han)(han)(han)(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)。但是(shi)與相同(tong)長度(du)的(de)直縫管(guan)(guan)(guan)(guan)(guan)(guan)相比(bi)，焊(han)(han)(han)(han)(han)(han)(han)縫長度(du)增加30~100%，而且生產(chan)(chan)(chan)速度(du)較低。因此，較小口徑(jing)的(de)焊(han)(han)(han)(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)大都采(cai)(cai)用(yong)(yong)直縫焊(han)(han)(han)(han)(han)(han)(han)，大口徑(jing)焊(han)(han)(han)(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)則大多采(cai)(cai)用(yong)(yong)螺旋焊(han)(han)(han)(han)(han)(han)(han)。