35號無縫管龍川35號無縫管的生產過程

軋(ya)制(zhi)無縫管(guan)(guan)(guan)的(de)(de)(de)原料(liao)是圓(yuan)(yuan)管(guan)(guan)(guan)坯(pi)，圓(yuan)(yuan)管(guan)(guan)(guan)胚要經過切(qie)割機(ji)(ji)(ji)的(de)(de)(de)切(qie)割加工(gong)成長度(du)(du)約為1米的(de)(de)(de)坯(pi)料(liao)，并(bing)經傳送(song)帶送(song)到熔(rong)爐(lu)內加熱。鋼(gang)(gang)坯(pi)被送(song)入熔(rong)爐(lu)內加熱，溫度(du)(du)大約為1200℃。燃料(liao)為氫氣(qi)或(huo)乙炔(gui)。爐(lu)內溫度(du)(du)控(kong)制(zhi)是關鍵(jian)性的(de)(de)(de)問題.圓(yuan)(yuan)管(guan)(guan)(guan)坯(pi)出爐(lu)后要經過壓力穿孔(kong)(kong)機(ji)(ji)(ji)進行(xing)穿空。一(yi)般較常見(jian)的(de)(de)(de)穿孔(kong)(kong)機(ji)(ji)(ji)是錐(zhui)形(xing)輥(gun)(gun)穿孔(kong)(kong)機(ji)(ji)(ji)，這種穿孔(kong)(kong)機(ji)(ji)(ji)生(sheng)產效率高，產品質(zhi)量好，穿孔(kong)(kong)擴徑(jing)(jing)量大，可穿多種鋼(gang)(gang)種。穿孔(kong)(kong)后，圓(yuan)(yuan)管(guan)(guan)(guan)坯(pi)就先后被三(san)輥(gun)(gun)斜軋(ya)、連軋(ya)或(huo)擠壓。擠壓后要脫管(guan)(guan)(guan)定(ding)徑(jing)(jing)。定(ding)徑(jing)(jing)機(ji)(ji)(ji)通(tong)過錐(zhui)形(xing)鉆頭(tou)高速旋轉入鋼(gang)(gang)胚打孔(kong)(kong)，形(xing)成鋼(gang)(gang)管(guan)(guan)(guan)。鋼(gang)(gang)管(guan)(guan)(guan)內徑(jing)(jing)由定(ding)徑(jing)(jing)機(ji)(ji)(ji)鉆頭(tou)的(de)(de)(de)外徑(jing)(jing)長度(du)(du)來確(que)定(ding)。鋼(gang)(gang)管(guan)(guan)(guan)經定(ding)徑(jing)(jing)后，進入冷(leng)(leng)卻塔中(zhong)(zhong)，通(tong)過噴(pen)水冷(leng)(leng)卻，鋼(gang)(gang)管(guan)(guan)(guan)經冷(leng)(leng)卻后，就要被矯(jiao)直。鋼(gang)(gang)管(guan)(guan)(guan)經矯(jiao)直后由傳送(song)帶送(song)至金屬(shu)探傷(shang)機(ji)(ji)(ji)（或(huo)水壓實驗）進行(xing)內部探傷(shang)。若鋼(gang)(gang)管(guan)(guan)(guan)內部有裂紋，氣(qi)泡等(deng)問題，將被探測(ce)出。鋼(gang)(gang)管(guan)(guan)(guan)質(zhi)檢后還要通(tong)過嚴格的(de)(de)(de)手工(gong)挑(tiao)選。鋼(gang)(gang)管(guan)(guan)(guan)質(zhi)檢后，用(yong)油漆噴(pen)上編號、規格、生(sheng)產批號等(deng)。并(bing)由吊(diao)車吊(diao)入倉(cang)庫中(zhong)(zhong)。