10號無縫厚壁鋼管現貨

　　10號無縫厚壁鋼管現貨

　　厚壁鋼管的制造工藝

　　1.熱軋(擠壓厚壁鋼管)：圓(yuan)管(guan)坯→加熱→穿孔→三輥斜軋、連軋或(huo)擠壓(ya)→脫管(guan)→定(ding)徑(jing)(或(huo)減徑(jing))→冷(leng)卻→矯直→水壓(ya)試驗(或(huo)探傷)→標記→入庫

　　軋制厚壁鋼管的原(yuan)料(liao)是(shi)圓管(guan)(guan)(guan)(guan)坯(pi)(pi)，圓管(guan)(guan)(guan)(guan)胚要(yao)(yao)經(jing)(jing)(jing)過切割機(ji)的切割加工(gong)成長度(du)約為1米的坯(pi)(pi)料(liao)，并經(jing)(jing)(jing)傳送(song)帶送(song)到熔爐(lu)內(nei)加熱(re)。鋼(gang)(gang)坯(pi)(pi)被送(song)入熔爐(lu)內(nei)加熱(re)，溫度(du)大約為1200攝氏度(du)。燃料(liao)為氫氣或(huo)C2H2。爐(lu)內(nei)溫度(du)控制是(shi)關鍵性的問題.圓管(guan)(guan)(guan)(guan)坯(pi)(pi)出(chu)爐(lu)后(hou)(hou)(hou)要(yao)(yao)經(jing)(jing)(jing)過壓力穿(chuan)(chuan)孔(kong)(kong)(kong)機(ji)進行穿(chuan)(chuan)空。一(yi)般較常見的穿(chuan)(chuan)孔(kong)(kong)(kong)機(ji)是(shi)錐(zhui)形(xing)(xing)輥穿(chuan)(chuan)孔(kong)(kong)(kong)機(ji)，這種(zhong)穿(chuan)(chuan)孔(kong)(kong)(kong)機(ji)生產效(xiao)率(lv)高，產品質量(liang)好，穿(chuan)(chuan)孔(kong)(kong)(kong)擴徑(jing)(jing)量(liang)大，可穿(chuan)(chuan)多種(zhong)鋼(gang)(gang)種(zhong)。穿(chuan)(chuan)孔(kong)(kong)(kong)后(hou)(hou)(hou)，圓管(guan)(guan)(guan)(guan)坯(pi)(pi)就(jiu)先(xian)后(hou)(hou)(hou)被三(san)輥斜(xie)軋、連(lian)軋或(huo)擠(ji)壓。擠(ji)壓后(hou)(hou)(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(zhui)形(xing)(xing)鉆(zhan)頭高速旋轉入鋼(gang)(gang)胚打孔(kong)(kong)(kong)，形(xing)(xing)成鋼(gang)(gang)管(guan)(guan)(guan)(guan)。鋼(gang)(gang)管(guan)(guan)(guan)(guan)內(nei)徑(jing)(jing)由定徑(jing)(jing)機(ji)鉆(zhan)頭的外徑(jing)(jing)長度(du)來確定。鋼(gang)(gang)管(guan)(guan)(guan)(guan)經(jing)(jing)(jing)定徑(jing)(jing)后(hou)(hou)(hou)，進入冷(leng)卻(que)(que)塔中，通(tong)(tong)過噴水冷(leng)卻(que)(que)，鋼(gang)(gang)管(guan)(guan)(guan)(guan)經(jing)(jing)(jing)冷(leng)卻(que)(que)后(hou)(hou)(hou)，就(jiu)要(yao)(yao)被矯直。

　　2.冷拔(軋(ya)(ya))厚壁(bi)鋼管(guan)(guan)：圓管(guan)(guan)坯→加熱→穿孔→打頭→退火→酸(suan)洗→涂(tu)油(鍍銅)→多道次冷拔(冷軋(ya)(ya))→坯管(guan)(guan)→熱處理→矯(jiao)直(zhi)→水(shui)壓試(shi)驗(yan)(探傷)→標(biao)記→入庫。

　　冷(leng)拔(ba)(軋(ya))厚壁(bi)鋼(gang)(gang)管的(de)軋(ya)制方法較熱軋(ya)(擠壓(ya)厚壁(bi)鋼(gang)(gang)管)復雜(za)。它們的(de)生產工藝流(liu)程(cheng)前(qian)三(san)步(bu)基本(ben)相(xiang)同。不(bu)同之(zhi)處(chu)從(cong)第四個步(bu)驟開始，圓(yuan)管坯(pi)經(jing)打空后，要(yao)(yao)打頭，退(tui)火。退(tui)火后要(yao)(yao)用(yong)(yong)專門(men)的(de)酸(suan)(suan)性液體進(jin)行酸(suan)(suan)洗。酸(suan)(suan)洗后，涂油。然(ran)后緊接著(zhu)是經(jing)過多道次冷(leng)拔(ba)(冷(leng)軋(ya))再坯(pi)管，專門(men)的(de)熱處(chu)理(li)。熱處(chu)理(li)后，就要(yao)(yao)被矯(jiao)直。鋼(gang)(gang)管經(jing)矯(jiao)直后由傳送(song)帶送(song)至(zhi)金屬探傷(shang)機(ji)(或(huo)水壓(ya)實驗)進(jin)行內(nei)部探傷(shang)。若(ruo)鋼(gang)(gang)管內(nei)部有裂紋，氣(qi)泡等問題，將被探測出(chu)。鋼(gang)(gang)管質檢后還(huan)要(yao)(yao)通過嚴格(ge)的(de)手(shou)工挑選。鋼(gang)(gang)管質檢后，用(yong)(yong)油漆噴上編號、規格(ge)、生產批號等。并由吊車吊入倉庫中。