通風管道是一種(zhong)空心(xin)方(fang)形的截面(mian)輕型(xing)(xing)(xing)薄壁鋼(gang)管,也稱為(wei)鋼(gang)制冷彎(wan)型(xing)(xing)(xing)材(cai)。它是以Q235熱(re)軋(ya)或冷軋(ya)帶鋼(gang)或卷板為(wei)母(mu)材(cai)經冷彎(wan)曲(qu)加(jia)工成(cheng)型(xing)(xing)(xing)后再(zai)經高(gao)頻焊接(jie)制成(cheng)的方(fang)形截面(mian)形狀(zhuang)尺寸的型(xing)(xing)(xing)鋼(gang)。熱(re)軋(ya)特(te)厚(hou)壁方(fang)管除壁厚(hou)增(zeng)厚(hou)外情況,其角部尺寸和邊部平直度均(jun)達(da)到(dao)甚至(zhi)超過電(dian)阻(zu)焊冷成(cheng)型(xing)(xing)(xing)方(fang)管的水平。綜合力學(xue)性(xing)(xing)能好,焊接(jie)性(xing)(xing),冷,熱(re)加(jia)工性(xing)(xing)能和耐腐蝕性(xing)(xing)能均(jun)好,具(ju)有良好的低溫韌性(xing)(xing)。
通風管道(dao)的用途(tu)有建(jian)筑,機械制(zhi)造(zao)(zao),鋼鐵建(jian)設等項目, 造(zao)(zao)船,太(tai)陽能發電(dian)支(zhi)架(jia),鋼結(jie)(jie)構(gou)工(gong)程(cheng)(cheng),電(dian)力(li)工(gong)程(cheng)(cheng),電(dian)廠,農(nong)業和化(hua)學機械,玻璃幕墻,汽車底盤,機場,鍋爐建(jian)造(zao)(zao),高(gao)速(su)路欄桿,房屋建(jian)筑,壓(ya)力(li)容(rong)器,石(shi)油儲罐,橋梁,電(dian)站設備,起重(zhong)運(yun)輸機械及(ji)其他(ta)較高(gao)載荷的焊接(jie)結(jie)(jie)構(gou)件等。