焊(han)接卷(juan)管(guan)(guan)(guan)常(chang)用材(cai)質：Q235，Q235B，Q345B，Q345C，Q345D，Q345E，Q345R，16mnR，L245R、L245/B、L290/X42、L360/X52、L415/X60、L450/X65、L485/X70。產(chan)品執行(xing)標準為：GB/T3091，GB/T9711等。 厚(hou)壁卷(juan)管(guan)(guan)(guan)：一般低(di)壓流(liu)體輸送用螺旋(xuan)(xuan)縫(feng)高(gao)頻焊(han)鋼(gang)(gang)管(guan)(guan)(guan)是以熱(re)(re)軋鋼(gang)(gang)帶卷(juan)作管(guan)(guan)(guan)坯(pi)，經(jing)常(chang)溫(wen)(wen)螺旋(xuan)(xuan)成型，采用高(gao)頻搭接低(di)壓流(liu)體輸送用螺旋(xuan)(xuan)縫(feng)高(gao)頻焊(han)鋼(gang)(gang)管(guan)(guan)(guan)。樁用螺旋(xuan)(xuan)焊(han)縫(feng)鋼(gang)(gang)管(guan)(guan)(guan)是以熱(re)(re)軋鋼(gang)(gang)帶卷(juan)作管(guan)(guan)(guan)坯(pi)，經(jing)常(chang)溫(wen)(wen)螺旋(xuan)(xuan)成型，采用雙面埋弧焊(han)接或高(gao)頻焊(han)接制(zhi)筑結構，碼頭，橋(qiao)梁等基礎樁用鋼(gang)(gang)管(guan)(guan)(guan)。QB鋼(gang)(gang)管(guan)(guan)(guan)為我們的生活，帶來很大的便(bian)利。厚(hou)壁卷(juan)管(guan)(guan)(guan)是用鋼(gang)(gang)板或鋼(gang)(gang)帶經(jing)過彎曲成型，然后經(jing)焊(han)接制(zhi)成。按焊(han)縫(feng)形式分為直(zhi)縫(feng)焊(han)管(guan)(guan)(guan)和螺旋(xuan)(xuan)焊(han)管(guan)(guan)(guan)。

內焊(han)(han)(han)采用(yong)縱列多絲埋(mai)弧(hu)焊(han)(han)(han)在大(da)口徑厚(hou)壁(bi)卷(juan)管(guan)的(de)(de)內側(ce)進行(xing)(xing)焊(han)(han)(han)接(jie)(jie)；外焊(han)(han)(han)采用(yong)縱列多絲埋(mai)弧(hu)焊(han)(han)(han)在直縫埋(mai)弧(hu)焊(han)(han)(han)鋼(gang)(gang)(gang)管(guan)的(de)(de)外側(ce)進行(xing)(xing)焊(han)(han)(han)接(jie)(jie)。鋼(gang)(gang)(gang)板(ban)(ban)(ban)檢(jian)測用(yong)來制造大(da)口徑厚(hou)壁(bi)卷(juan)管(guan)的(de)(de)鋼(gang)(gang)(gang)板(ban)(ban)(ban)進入生產線之前，首行(xing)(xing)全板(ban)(ban)(ban)超(chao)聲波(bo)檢(jian)驗；下料通過(guo)銑(xian)邊機對鋼(gang)(gang)(gang)板(ban)(ban)(ban)的(de)(de)兩側(ce)邊緣進行(xing)(xing)銑(xian)削，使之達到需(xu)要(yao)的(de)(de)鋼(gang)(gang)(gang)板(ban)(ban)(ban)寬度以及板(ban)(ban)(ban)邊平行(xing)(xing)度和坡(po)口形狀(zhuang)。原料鋼(gang)(gang)(gang)板(ban)(ban)(ban)避免露(lu)天(tian)堆放，防止雨淋，造成(cheng)鋼(gang)(gang)(gang)板(ban)(ban)(ban)潮濕，厚(hou)壁(bi)鋼(gang)(gang)(gang)板(ban)(ban)(ban)卷(juan)管(guan)廠家，鋼(gang)(gang)(gang)板(ban)(ban)(ban)表面脫落的(de)(de)氧化鐵(tie)皮(pi)容易形成(cheng)塊狀(zhuang)或(huo)團狀(zhuang)，而(er)粘附鋼(gang)(gang)(gang)板(ban)(ban)(ban)或(huo)卷(juan)曲輥上，反復受壓時，壓入筒體形成(cheng)凹坑缺陷。

大口徑(jing)卷(juan)管(guan)(guan)具有工(gong)藝相對簡單，快速連(lian)續生產的(de)(de)特點，在民用建(jian)筑、石化、輕(qing)工(gong)等(deng)部門(men)有廣(guang)泛(fan)(fan)用途。多用于(yu)輸送(song)低壓流(liu)體或做成各種(zhong)工(gong)程構件及輕(qing)工(gong)產品(pin)。 ? 鋼(gang)板卷(juan)管(guan)(guan)屬于(yu)碳(tan)鋼(gang)中(zhong)的(de)(de)一(yi)種(zhong)材質，使用十分(fen)廣(guang)泛(fan)(fan)。鋼(gang)板卷(juan)管(guan)(guan)的(de)(de)厚度一(yi)般在10mm以上，廣(guang)泛(fan)(fan)應用于(yu)排水(shui)工(gong)程、排污管(guan)(guan)道、建(jian)筑用管(guan)(guan)等(deng)。鋼(gang)板卷(juan)管(guan)(guan)不但是運用，看(kan)來維(wei)護(hu)維(wei)護(hu)保(bao)養和維(wei)護(hu)維(wei)護(hu)保(bao)養的(de)(de)工(gong)作中(zhong)中(zhong)也是十分(fen)的(de)(de)重要的(de)(de)!