通風管道是一種空心(xin)方形(xing)的截(jie)面輕型(xing)薄壁(bi)鋼(gang)(gang)(gang)管,也(ye)稱為鋼(gang)(gang)(gang)制(zhi)冷(leng)彎(wan)型(xing)材。它是以Q235熱(re)軋或冷(leng)軋帶鋼(gang)(gang)(gang)或卷板為母材經冷(leng)彎(wan)曲加工(gong)成(cheng)型(xing)后再經高頻焊接制(zhi)成(cheng)的方形(xing)截(jie)面形(xing)狀尺寸的型(xing)鋼(gang)(gang)(gang)。熱(re)軋特厚(hou)壁(bi)方管除壁(bi)厚(hou)增厚(hou)外情(qing)況,其角部(bu)尺寸和邊(bian)部(bu)平(ping)直度均達到(dao)甚(shen)至超過(guo)電阻焊冷(leng)成(cheng)型(xing)方管的水(shui)平(ping)。綜合力(li)學性(xing)能好(hao),焊接性(xing),冷(leng),熱(re)加工(gong)性(xing)能和耐腐(fu)蝕性(xing)能均好(hao),具有良好(hao)的低溫(wen)韌(ren)性(xing)。
通風管道(dao)的用途有(you)建(jian)筑(zhu),機(ji)械(xie)制(zhi)造,鋼鐵建(jian)設(she)等項(xiang)目(mu), 造船,太陽(yang)能發電支架,鋼結構工(gong)程(cheng),電力工(gong)程(cheng),電廠(chang),農業和化學(xue)機(ji)械(xie),玻璃幕墻,汽車底盤,機(ji)場,鍋爐建(jian)造,高速路欄桿,房(fang)屋建(jian)筑(zhu),壓力容(rong)器,石油儲罐(guan),橋(qiao)梁,電站設(she)備,起重運輸機(ji)械(xie)及其他較高載荷的焊接結構件等。