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3087無縫鋼管國標壁厚標準
3087標準無縫鋼(gang)(gang)管(guan)(guan)(guan)的(de)(de)(de)(de)原料是(shi)圓管(guan)(guan)(guan)坯(pi)(pi),圓管(guan)(guan)(guan)胚要(yao)經(jing)過切割(ge)(ge)機(ji)的(de)(de)(de)(de)切割(ge)(ge)加(jia)工成(cheng)長(chang)度(du)約為1米的(de)(de)(de)(de)坯(pi)(pi)料,并(bing)經(jing)傳送(song)(song)帶(dai)送(song)(song)到熔(rong)爐(lu)(lu)內(nei)(nei)(nei)加(jia)熱(re)。鋼(gang)(gang)坯(pi)(pi)被送(song)(song)入(ru)熔(rong)爐(lu)(lu)內(nei)(nei)(nei)加(jia)熱(re),溫度(du)大約為1200℃。燃料為氫氣或(huo)乙炔。爐(lu)(lu)內(nei)(nei)(nei)溫度(du)控(kong)制是(shi)關鍵性(xing)的(de)(de)(de)(de)問(wen)題(ti)(ti).圓管(guan)(guan)(guan)坯(pi)(pi)出(chu)爐(lu)(lu)后要(yao)經(jing)過壓力穿(chuan)孔(kong)機(ji)進行穿(chuan)空。一般較常見的(de)(de)(de)(de)穿(chuan)孔(kong)機(ji)是(shi)錐形(xing)輥穿(chuan)孔(kong)機(ji),這種穿(chuan)孔(kong)機(ji)生產(chan)效(xiao)率(lv)高,產(chan)品質(zhi)(zhi)量好,穿(chuan)孔(kong)擴徑量大,可(ke)穿(chuan)多種鋼(gang)(gang)種。穿(chuan)孔(kong)后,圓管(guan)(guan)(guan)坯(pi)(pi)就先后被三輥斜(xie)軋、連軋或(huo)擠(ji)壓。擠(ji)壓后要(yao)脫管(guan)(guan)(guan)定徑。定徑機(ji)通過錐形(xing)鉆頭(tou)高速旋轉入(ru)鋼(gang)(gang)胚打孔(kong),形(xing)成(cheng)鋼(gang)(gang)管(guan)(guan)(guan)。鋼(gang)(gang)管(guan)(guan)(guan)內(nei)(nei)(nei)徑由(you)定徑機(ji)鉆頭(tou)的(de)(de)(de)(de)外徑長(chang)度(du)來確定。鋼(gang)(gang)管(guan)(guan)(guan)經(jing)定徑后,進入(ru)冷卻(que)(que)塔中,通過噴(pen)水(shui)(shui)冷卻(que)(que),鋼(gang)(gang)管(guan)(guan)(guan)經(jing)冷卻(que)(que)后,就要(yao)被矯(jiao)直。鋼(gang)(gang)管(guan)(guan)(guan)經(jing)矯(jiao)直后由(you)傳送(song)(song)帶(dai)送(song)(song)至金(jin)屬探傷(shang)機(ji)(或(huo)水(shui)(shui)壓實驗)進行內(nei)(nei)(nei)部探傷(shang)。若鋼(gang)(gang)管(guan)(guan)(guan)內(nei)(nei)(nei)部有裂紋,氣泡等問(wen)題(ti)(ti),將被探測出(chu)。鋼(gang)(gang)管(guan)(guan)(guan)質(zhi)(zhi)檢后還(huan)要(yao)通過嚴格的(de)(de)(de)(de)手工挑選。鋼(gang)(gang)管(guan)(guan)(guan)質(zhi)(zhi)檢后,用油漆噴(pen)上編號(hao)、規格、生產(chan)批號(hao)等。并(bing)由(you)吊車吊入(ru)倉庫中。
3087無縫鋼管規格
無(wu)縫鋼管的規格用(yong)外徑*壁厚(hou)毫米數(shu)表示。
3087標準無(wu)(wu)縫鋼管(guan)的分類:無(wu)(wu)縫鋼管(guan)分熱(re)軋和冷軋(撥)無(wu)(wu)縫鋼管(guan)兩類。
熱軋無縫鋼(gang)(gang)管(guan)(guan)(guan)分一(yi)般鋼(gang)(gang)管(guan)(guan)(guan),低、中壓鍋(guo)爐鋼(gang)(gang)管(guan)(guan)(guan),高壓鍋(guo)爐鋼(gang)(gang)管(guan)(guan)(guan)、合金鋼(gang)(gang)管(guan)(guan)(guan)、不銹(xiu)鋼(gang)(gang)管(guan)(guan)(guan)、石油(you)裂(lie)化管(guan)(guan)(guan)、地質鋼(gang)(gang)管(guan)(guan)(guan)和(he)其(qi)它鋼(gang)(gang)管(guan)(guan)(guan)等。
冷軋(撥)無(wu)縫鋼(gang)管(guan)(guan)(guan)除(chu)分一般(ban)鋼(gang)管(guan)(guan)(guan)、低中壓(ya)(ya)鍋爐(lu)鋼(gang)管(guan)(guan)(guan)、高壓(ya)(ya)鍋爐(lu)鋼(gang)管(guan)(guan)(guan)、合金(jin)(jin)鋼(gang)管(guan)(guan)(guan)、不銹鋼(gang)管(guan)(guan)(guan)、石油(you)裂化管(guan)(guan)(guan)、其它鋼(gang)管(guan)(guan)(guan)外,還包括碳素(su)薄(bo)壁(bi)鋼(gang)管(guan)(guan)(guan)、合金(jin)(jin)薄(bo)壁(bi)鋼(gang)管(guan)(guan)(guan)、不銹薄(bo)壁(bi)鋼(gang)管(guan)(guan)(guan)、異型鋼(gang)管(guan)(guan)(guan)。熱軋無(wu)縫管(guan)(guan)(guan)外徑一般(ban)大于 32mm,壁(bi)厚2.5-75mm,冷軋無(wu)縫鋼(gang)管(guan)(guan)(guan)處徑可以到6mm,壁(bi)厚可到0.25mm,薄(bo)壁(bi)管(guan)(guan)(guan)外徑可到5mm,壁(bi)厚小(xiao)于0.25mm,冷軋比熱軋尺寸精度高。