通風管道是(shi)一種空心方(fang)形(xing)(xing)的(de)(de)截面輕型(xing)薄(bo)壁(bi)鋼管,也稱為鋼制(zhi)冷(leng)彎型(xing)材。它是(shi)以Q235熱(re)軋(ya)或(huo)冷(leng)軋(ya)帶鋼或(huo)卷板為母材經冷(leng)彎曲(qu)加(jia)工(gong)成(cheng)型(xing)后再經高頻焊(han)接(jie)制(zhi)成(cheng)的(de)(de)方(fang)形(xing)(xing)截面形(xing)(xing)狀尺(chi)寸(cun)的(de)(de)型(xing)鋼。熱(re)軋(ya)特厚壁(bi)方(fang)管除壁(bi)厚增厚外情況,其角(jiao)部尺(chi)寸(cun)和邊部平(ping)直度均(jun)達(da)到甚(shen)至超過電阻焊(han)冷(leng)成(cheng)型(xing)方(fang)管的(de)(de)水平(ping)。綜(zong)合力學性(xing)能好,焊(han)接(jie)性(xing),冷(leng),熱(re)加(jia)工(gong)性(xing)能和耐腐蝕性(xing)能均(jun)好,具有良好的(de)(de)低溫韌(ren)性(xing)。
通風管道的用途有(you)建(jian)(jian)筑,機(ji)械(xie)制造(zao),鋼(gang)(gang)鐵建(jian)(jian)設(she)等項目, 造(zao)船,太(tai)陽能發(fa)電(dian)(dian)支架,鋼(gang)(gang)結構(gou)工(gong)程,電(dian)(dian)力(li)工(gong)程,電(dian)(dian)廠,農業(ye)和(he)化學機(ji)械(xie),玻璃幕墻,汽車(che)底盤,機(ji)場,鍋爐建(jian)(jian)造(zao),高速路欄(lan)桿,房屋建(jian)(jian)筑,壓(ya)力(li)容(rong)器(qi),石油儲(chu)罐,橋梁,電(dian)(dian)站設(she)備,起重(zhong)運輸機(ji)械(xie)及其(qi)他較高載荷的焊接(jie)結構(gou)件等。