3087無縫鋼管的生(sheng)產在下面幾個方面要(yao)注意的：

　　1.3087無縫鋼管選(xuan)擇上，嚴格選(xuan)用管(guan)坯鋼;

　　2.進廠的3087無縫鋼管要嚴格檢查(包括低(di)倍組織)，有較大表(biao)面缺(que)陷時，要全部酸洗檢查修(xiu)磨;

　　3.嚴格執行按爐(lu)送3087無(wu)縫鋼(gang)管制度，完(wan)整的記錄生產過程，每(mei)道工序都(dou)有原始記錄，并符合技(ji)術操作規程的要(yao)求。

　　無縫(feng)(feng)鋼管(guan)(guan)(guan)(guan)(guan)是用鋼錠(ding)或實(shi)心管(guan)(guan)(guan)(guan)(guan)坯經穿(chuan)孔(kong)制成毛管(guan)(guan)(guan)(guan)(guan)，然后經熱軋、冷(leng)軋或冷(leng)撥制成。無縫(feng)(feng)鋼管(guan)(guan)(guan)(guan)(guan)在我(wo)國鋼管(guan)(guan)(guan)(guan)(guan)業中具有重(zhong)要(yao)的地位。據不(bu)完全統(tong)計，我(wo)國現有無縫(feng)(feng)管(guan)(guan)(guan)(guan)(guan)生(sheng)產(chan)企業約240多(duo)家，無縫(feng)(feng)鋼管(guan)(guan)(guan)(guan)(guan)機組約250多(duo)套，年產(chan)能力約450多(duo)萬(wan)噸。從口徑看，<φ76的，占(zhan)35%，<φ159-650的，占(zhan)25%。從品種看，一般用途管(guan)(guan)(guan)(guan)(guan)190萬(wan)噸，占(zhan)54%;石油(you)管(guan)(guan)(guan)(guan)(guan)76萬(wan)噸，占(zhan)5.7%;液壓(ya)支(zhi)柱、精密管(guan)(guan)(guan)(guan)(guan)15萬(wan)噸，占(zhan)4.3%;不(bu)銹管(guan)(guan)(guan)(guan)(guan)、軸(zhou)承管(guan)(guan)(guan)(guan)(guan)、汽車管(guan)(guan)(guan)(guan)(guan)共5萬(wan)噸，占(zhan)1.4%。

　　軋制無縫管(guan)(guan)(guan)(guan)的(de)(de)(de)原料是(shi)圓管(guan)(guan)(guan)(guan)坯(pi)，圓管(guan)(guan)(guan)(guan)胚(pei)要經(jing)過切(qie)割(ge)機(ji)的(de)(de)(de)切(qie)割(ge)加工成長度(du)(du)約(yue)為(wei)1米(mi)的(de)(de)(de)坯(pi)料，并(bing)經(jing)傳送(song)(song)(song)帶(dai)送(song)(song)(song)到熔(rong)爐內(nei)(nei)(nei)加熱。鋼(gang)(gang)坯(pi)被送(song)(song)(song)入(ru)(ru)熔(rong)爐內(nei)(nei)(nei)加熱，溫度(du)(du)大約(yue)為(wei)1200攝氏(shi)度(du)(du)。燃(ran)料為(wei)氫氣或乙炔。爐內(nei)(nei)(nei)溫度(du)(du)控制是(shi)關(guan)鍵性(xing)的(de)(de)(de)問題.圓管(guan)(guan)(guan)(guan)坯(pi)出爐后(hou)(hou)要經(jing)過壓力穿(chuan)(chuan)孔(kong)機(ji)進行穿(chuan)(chuan)空。一般(ban)較常見的(de)(de)(de)穿(chuan)(chuan)孔(kong)機(ji)是(shi)錐(zhui)形(xing)輥穿(chuan)(chuan)孔(kong)機(ji)，這種(zhong)(zhong)穿(chuan)(chuan)孔(kong)機(ji)生(sheng)產效率(lv)高，產品質量好，穿(chuan)(chuan)孔(kong)擴徑量大，可穿(chuan)(chuan)多種(zhong)(zhong)鋼(gang)(gang)種(zhong)(zhong)。穿(chuan)(chuan)孔(kong)后(hou)(hou)，圓管(guan)(guan)(guan)(guan)坯(pi)就(jiu)(jiu)先后(hou)(hou)被三輥斜軋、連軋或擠壓。擠壓后(hou)(hou)要脫管(guan)(guan)(guan)(guan)定(ding)(ding)徑。定(ding)(ding)徑機(ji)通(tong)過錐(zhui)形(xing)鉆(zhan)頭高速旋轉入(ru)(ru)鋼(gang)(gang)胚(pei)打孔(kong)，形(xing)成鋼(gang)(gang)管(guan)(guan)(guan)(guan)。鋼(gang)(gang)管(guan)(guan)(guan)(guan)內(nei)(nei)(nei)徑由(you)定(ding)(ding)徑機(ji)鉆(zhan)頭的(de)(de)(de)外徑長度(du)(du)來確(que)定(ding)(ding)。鋼(gang)(gang)管(guan)(guan)(guan)(guan)經(jing)定(ding)(ding)徑后(hou)(hou)，進入(ru)(ru)冷卻塔(ta)中(zhong)，通(tong)過噴(pen)水冷卻，鋼(gang)(gang)管(guan)(guan)(guan)(guan)經(jing)冷卻后(hou)(hou)，就(jiu)(jiu)要被矯直。鋼(gang)(gang)管(guan)(guan)(guan)(guan)經(jing)矯直后(hou)(hou)由(you)傳送(song)(song)(song)帶(dai)送(song)(song)(song)至金屬探傷機(ji)(或水壓實(shi)驗)進行內(nei)(nei)(nei)部探傷。若鋼(gang)(gang)管(guan)(guan)(guan)(guan)內(nei)(nei)(nei)部有裂紋(wen)，氣泡等問題，將被探測(ce)出。鋼(gang)(gang)管(guan)(guan)(guan)(guan)質檢(jian)后(hou)(hou)還要通(tong)過嚴格(ge)(ge)的(de)(de)(de)手工挑選。鋼(gang)(gang)管(guan)(guan)(guan)(guan)質檢(jian)后(hou)(hou)，用(yong)油漆(qi)噴(pen)上編號、規格(ge)(ge)、生(sheng)產批(pi)號等。并(bing)由(you)吊車吊入(ru)(ru)倉庫中(zhong)。