35號無縫鋼管制作方法

軋制(zhi)無縫管(guan)(guan)(guan)(guan)的原料是圓(yuan)(yuan)管(guan)(guan)(guan)(guan)坯(pi)，圓(yuan)(yuan)管(guan)(guan)(guan)(guan)胚(pei)要(yao)(yao)經(jing)(jing)(jing)過切(qie)割機(ji)的切(qie)割加工(gong)成長度(du)(du)約為(wei)1米的坯(pi)料，并經(jing)(jing)(jing)傳(chuan)送(song)(song)(song)帶送(song)(song)(song)到熔爐(lu)內加熱。鋼(gang)(gang)(gang)坯(pi)被送(song)(song)(song)入熔爐(lu)內加熱，溫(wen)度(du)(du)大約為(wei)1200℃。燃料為(wei)氫氣(qi)或(huo)乙炔。爐(lu)內溫(wen)度(du)(du)控制(zhi)是關(guan)鍵(jian)性的問題(ti)·圓(yuan)(yuan)管(guan)(guan)(guan)(guan)坯(pi)出(chu)爐(lu)后(hou)要(yao)(yao)經(jing)(jing)(jing)過壓(ya)(ya)力穿孔(kong)機(ji)進(jin)行穿空(kong)。一般較常見(jian)的穿孔(kong)機(ji)是錐形(xing)輥穿孔(kong)機(ji)，這(zhe)種(zhong)穿孔(kong)機(ji)生產(chan)效率(lv)高，產(chan)品質量(liang)好，穿孔(kong)擴(kuo)徑(jing)(jing)量(liang)大，可穿多種(zhong)鋼(gang)(gang)(gang)種(zhong)。穿孔(kong)后(hou)，圓(yuan)(yuan)管(guan)(guan)(guan)(guan)坯(pi)就(jiu)先(xian)后(hou)被三輥斜軋、連軋或(huo)擠壓(ya)(ya)。擠壓(ya)(ya)后(hou)要(yao)(yao)脫管(guan)(guan)(guan)(guan)定徑(jing)(jing)。定徑(jing)(jing)機(ji)通(tong)(tong)過錐形(xing)鉆(zhan)頭高速旋轉入鋼(gang)(gang)(gang)胚(pei)打(da)孔(kong)，形(xing)成鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)。鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)內徑(jing)(jing)由定徑(jing)(jing)機(ji)鉆(zhan)頭的外徑(jing)(jing)長度(du)(du)來確定。鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)經(jing)(jing)(jing)定徑(jing)(jing)后(hou)，進(jin)入冷卻(que)塔(ta)中(zhong)(zhong)，通(tong)(tong)過噴(pen)水冷卻(que)，鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)經(jing)(jing)(jing)冷卻(que)后(hou)，就(jiu)要(yao)(yao)被矯直(zhi)。鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)經(jing)(jing)(jing)矯直(zhi)后(hou)由傳(chuan)送(song)(song)(song)帶送(song)(song)(song)至金屬(shu)探傷機(ji)（或(huo)水壓(ya)(ya)實驗(yan)）進(jin)行內部(bu)探傷。若鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)內部(bu)有裂(lie)紋，氣(qi)泡等(deng)問題(ti)，將被探測出(chu)。鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)質檢后(hou)還要(yao)(yao)通(tong)(tong)過嚴(yan)格(ge)(ge)的手工(gong)挑(tiao)選。鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)質檢后(hou)，用油(you)漆噴(pen)上(shang)編號(hao)、規格(ge)(ge)、生產(chan)批(pi)號(hao)等(deng)。并由吊(diao)車(che)吊(diao)入倉庫中(zhong)(zhong)。