銷售熱線：
45號無縫管-45號無縫鋼管-45號鋼管45號(hao)無(wu)縫管是用鋼錠或(huo)實(shi)心(xin)管坯經(jing)穿(chuan)孔制成毛管然后經(jing)熱軋、冷(leng)(leng)軋或(huo)冷(leng)(leng)撥制成。
無縫管
45號無縫管(guan)(guan)(guan)在我國鋼管(guan)(guan)(guan)業中(zhong)具有重(zhong)要的地位。據不(bu)完全統(tong)計，我國現有45號無縫鋼管(guan)(guan)(guan)生(sheng)產(chan)企(qi)業約(yue)240多家(jia)，無縫鋼管(guan)(guan)(guan)機組約(yue)250多套，年產(chan)能力約(yue)450多萬(wan)(wan)噸(dun)(dun)(dun)。從(cong)口(kou)徑(jing)看，＜φ76的，占(zhan)35%，＜φ159-650的，占(zhan)25%。從(cong)品種(zhong)看，一般用途管(guan)(guan)(guan)190萬(wan)(wan)噸(dun)(dun)(dun)，占(zhan)54%；石油管(guan)(guan)(guan)76萬(wan)(wan)噸(dun)(dun)(dun)，占(zhan)5.7%；液壓(ya)支柱、精密管(guan)(guan)(guan)15萬(wan)(wan)噸(dun)(dun)(dun)，占(zhan)4.3%；不(bu)銹管(guan)(guan)(guan)、軸承管(guan)(guan)(guan)、汽車管(guan)(guan)(guan)共5萬(wan)(wan)噸(dun)(dun)(dun)，占(zhan)1.4%。
洋利特(te)鋼(gang)管(guan)(guan)(guan)45號無縫管(guan)(guan)(guan)生(sheng)(sheng)產(chan)工藝流(liu)程：軋制無縫管(guan)(guan)(guan)的(de)(de)原料(liao)是(shi)圓管(guan)(guan)(guan)坯(pi)，圓管(guan)(guan)(guan)胚(pei)(pei)要(yao)(yao)經(jing)過切割機(ji)的(de)(de)切割加工成(cheng)長度(du)約(yue)為(wei)1米的(de)(de)坯(pi)料(liao)，并經(jing)傳(chuan)送(song)(song)帶送(song)(song)到熔(rong)爐(lu)(lu)內(nei)(nei)(nei)加熱(re)。鋼(gang)坯(pi)被送(song)(song)入(ru)熔(rong)爐(lu)(lu)內(nei)(nei)(nei)加熱(re)，溫(wen)度(du)大約(yue)為(wei)1200攝(she)氏(shi)度(du)。燃料(liao)為(wei)氫氣或乙炔(gui)。爐(lu)(lu)內(nei)(nei)(nei)溫(wen)度(du)控制是(shi)關鍵性的(de)(de)問題.圓管(guan)(guan)(guan)坯(pi)出爐(lu)(lu)后(hou)(hou)要(yao)(yao)經(jing)過壓力穿(chuan)孔(kong)機(ji)進行穿(chuan)空。一般較常(chang)見的(de)(de)穿(chuan)孔(kong)機(ji)是(shi)錐形(xing)輥(gun)穿(chuan)孔(kong)機(ji)，這(zhe)種(zhong)穿(chuan)孔(kong)機(ji)生(sheng)(sheng)產(chan)效率高，產(chan)品(pin)質(zhi)量好，穿(chuan)孔(kong)擴徑(jing)(jing)量大，可(ke)穿(chuan)多種(zhong)鋼(gang)種(zhong)。穿(chuan)孔(kong)后(hou)(hou)，圓管(guan)(guan)(guan)坯(pi)就先后(hou)(hou)被三輥(gun)斜軋、連軋或擠(ji)(ji)壓。擠(ji)(ji)壓后(hou)(hou)要(yao)(yao)脫管(guan)(guan)(guan)定(ding)徑(jing)(jing)。定(ding)徑(jing)(jing)機(ji)通(tong)(tong)過錐形(xing)鉆頭高速旋轉(zhuan)入(ru)鋼(gang)胚(pei)(pei)打孔(kong)，形(xing)成(cheng)鋼(gang)管(guan)(guan)(guan)。鋼(gang)管(guan)(guan)(guan)內(nei)(nei)(nei)徑(jing)(jing)由定(ding)徑(jing)(jing)機(ji)鉆頭的(de)(de)外徑(jing)(jing)長度(du)來確定(ding)。鋼(gang)管(guan)(guan)(guan)經(jing)定(ding)徑(jing)(jing)后(hou)(hou)，進入(ru)冷卻(que)塔中(zhong)，通(tong)(tong)過噴(pen)水冷卻(que)，鋼(gang)管(guan)(guan)(guan)經(jing)冷卻(que)后(hou)(hou)，就要(yao)(yao)被矯(jiao)直(zhi)。鋼(gang)管(guan)(guan)(guan)經(jing)矯(jiao)直(zhi)后(hou)(hou)由傳(chuan)送(song)(song)帶送(song)(song)至金(jin)屬探傷機(ji)（或水壓實驗）進行內(nei)(nei)(nei)部(bu)探傷。若鋼(gang)管(guan)(guan)(guan)內(nei)(nei)(nei)部(bu)有裂紋，氣泡等(deng)問題，將被探測出。鋼(gang)管(guan)(guan)(guan)質(zhi)檢(jian)后(hou)(hou)還要(yao)(yao)通(tong)(tong)過嚴格(ge)的(de)(de)手工挑選。鋼(gang)管(guan)(guan)(guan)質(zhi)檢(jian)后(hou)(hou)，用油漆噴(pen)上編號、規格(ge)、生(sheng)(sheng)產(chan)批號等(deng)。并由吊車(che)吊入(ru)倉庫中(zhong)。
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