45號無縫鋼管零售加工
45號無縫鋼管熱擴生產工藝
空心母(mu)材不帶芯棒的(de)(de)連(lian)續軋制(zhi)(zhi)過(guo)程。在保證(zheng)母(mu)管(guan)(guan)(guan)(guan)焊接質(zhi)量的(de)(de)前提下,焊管(guan)(guan)(guan)(guan)張力減(jian)(jian)徑(jing)(jing)工(gong)(gong)藝是將焊管(guan)(guan)(guan)(guan)整體(ti)加熱(re)到(dao)(dao)950攝氏(shi)度(du)以上,再(zai)經張力減(jian)(jian)徑(jing)(jing)機(張力減(jian)(jian)徑(jing)(jing)機共有24道次)軋制(zhi)(zhi)成各(ge)種外徑(jing)(jing)與壁厚的(de)(de)成品管(guan)(guan)(guan)(guan),采用(yong)此(ci)工(gong)(gong)藝所(suo)生產(chan)的(de)(de)熱(re)擴鋼管(guan)(guan)(guan)(guan)與普通(tong)的(de)(de)高頻焊管(guan)(guan)(guan)(guan)有本質(zhi)的(de)(de)區別(bie),通(tong)過(guo)加熱(re)爐(lu)加熱(re)后其焊縫(feng)與母(mu)體(ti)的(de)(de)金相(xiang)組織和機械性能可以達到(dao)(dao)完全一致此(ci)外 ,通(tong)過(guo)多(duo)道次的(de)(de)張力減(jian)(jian)徑(jing)(jing)機軋制(zhi)(zhi)和自動控(kong)制(zhi)(zhi)使(shi)得鋼管(guan)(guan)(guan)(guan)的(de)(de)尺寸精(jing)度(du)(尤其是管(guan)(guan)(guan)(guan)體(ti)圓度(du)和壁厚精(jing)度(du))優于同類(lei)無縫(feng)管(guan)(guan)(guan)(guan)。世界發達國家生產(chan)的(de)(de)流體(ti)管(guan)(guan)(guan)(guan),鍋(guo)爐(lu)管(guan)(guan)(guan)(guan)中已大量采用(yong)焊管(guan)(guan)(guan)(guan)無縫(feng)化工(gong)(gong)藝。
45號無縫鋼管熱擴適用范圍
石油(you)天然氣工(gong)(gong)業(ye)、化學工(gong)(gong)業(ye)、電力工(gong)(gong)業(ye)、給(gei)排水工(gong)(gong)程、城市建設等,可燃性流(liu)體(ti)(ti)和(he)非可燃性流(liu)體(ti)(ti)輸送管道用(yong)和(he)建設結構用(yong)。
執行標準
依據API SPEC 5L管線鋼(gang)規(gui)范 GB/T9711.1 , SY/T5037石(shi)油天然(ran)氣輸送管道標準生產和檢驗
定尺長度
12000mm±500mm 采用自動埋弧焊工藝,螺旋(xuan),成型(xing)。
45號無縫(feng)鋼(gang)管(guan)熱擴規格
6 8 10 12 14 16 18 *1-3
20 22 24 25 28 30 32 *3-8
34 36 38 40 42 45 48 *3-12
50 51 54 57 60 63.5 *3-15
65 68 70 73 76 80 83 89 *3-25
95 102 108 114 121 127 *4-35
133 140 146 152 159 168 *4-50
178 180 194 203 219 245 *6-60
273 299 325 351 355 377 *6-90
402 406 426 450 457 465 *8-80
480 500 508 510 530 560 *8-80
580 610 630 660 680 720 *10-120