通風管道是(shi)一種(zhong)空(kong)心(xin)方形的(de)截面(mian)輕(qing)型(xing)(xing)薄(bo)壁鋼管(guan),也稱(cheng)為鋼制冷(leng)彎型(xing)(xing)材。它是(shi)以Q235熱(re)軋(ya)(ya)或冷(leng)軋(ya)(ya)帶鋼或卷板為母材經冷(leng)彎曲(qu)加(jia)工(gong)成型(xing)(xing)后再(zai)經高頻焊接制成的(de)方形截面(mian)形狀尺寸(cun)的(de)型(xing)(xing)鋼。熱(re)軋(ya)(ya)特厚(hou)壁方管(guan)除壁厚(hou)增厚(hou)外情況(kuang),其角部(bu)(bu)尺寸(cun)和邊部(bu)(bu)平直度均達到甚至超過電阻焊冷(leng)成型(xing)(xing)方管(guan)的(de)水平。綜合力學性(xing)能(neng)好(hao)(hao),焊接性(xing),冷(leng),熱(re)加(jia)工(gong)性(xing)能(neng)和耐(nai)腐蝕性(xing)能(neng)均好(hao)(hao),具有良好(hao)(hao)的(de)低溫(wen)韌性(xing)。
通風管道的用途有建(jian)筑,機(ji)(ji)械(xie)制造(zao),鋼(gang)鐵(tie)建(jian)設等(deng)項目, 造(zao)船,太陽(yang)能發電支架(jia),鋼(gang)結構(gou)工(gong)程,電力工(gong)程,電廠,農業和化(hua)學機(ji)(ji)械(xie),玻璃幕墻(qiang),汽車底盤,機(ji)(ji)場,鍋爐建(jian)造(zao),高(gao)速路欄(lan)桿,房屋建(jian)筑,壓(ya)力容(rong)器,石油儲罐,橋(qiao)梁,電站(zhan)設備(bei),起重運輸(shu)機(ji)(ji)械(xie)及(ji)其他較高(gao)載荷的焊接結構(gou)件(jian)等(deng)。