鍍(du)(du)鋅管(guan) 國標 熱鍍(du)(du)鋅鋼管(guan) 消防供(gong)水圓管(guan) Q235 溫(wen)室(shi)大(da)棚管(guan)

鍍(du)鋅(xin)鋼(gang)管(guan)(guan)(guan)分為冷(leng)(leng)(leng)鍍(du)鋅(xin)鋼(gang)管(guan)(guan)(guan)、熱鍍(du)鋅(xin)鋼(gang)管(guan)(guan)(guan)，冷(leng)(leng)(leng)鍍(du)鋅(xin)鋼(gang)管(guan)(guan)(guan)已(yi)被禁用(yong)，后者還被提倡暫時能使(shi)用(yong)。六七(qi)十年代，國(guo)際上發(fa)達(da)開(kai)始開(kai)發(fa)新型(xing)管(guan)(guan)(guan)材(cai)，并陸續禁用(yong)鍍(du)鋅(xin)管(guan)(guan)(guan)。中國(guo)建(jian)設(she)部(bu)等四部(bu)委也(ye)發(fa)文明確從(cong)2000年起禁用(yong)鍍(du)鋅(xin)管(guan)(guan)(guan)作為供(gong)水(shui)管(guan)(guan)(guan)，新建(jian)小區的(de)冷(leng)(leng)(leng)水(shui)管(guan)(guan)(guan)已(yi)經很少使(shi)用(yong)鍍(du)鋅(xin)管(guan)(guan)(guan)了，有(you)些小區的(de)熱水(shui)管(guan)(guan)(guan)使(shi)用(yong)的(de)是鍍(du)鋅(xin)管(guan)(guan)(guan)。熱鍍(du)鋅(xin)鋼(gang)管(guan)(guan)(guan)在(zai)消防(fang)、電力(li)和(he)高速公(gong)路(lu)上有(you)廣(guang)泛(fan)的(de)應用(yong)。

熱鍍(du)鋅鋼管廣泛應用于建筑、機(ji)械(xie)、煤礦(kuang)、化工(gong)、電力、鐵(tie)道車(che)輛、汽(qi)車(che)工(gong)業(ye)(ye)、公路(lu)、橋(qiao)梁、集(ji)裝箱(xiang)、體育(yu)設施、農業(ye)(ye)機(ji)械(xie)、石油機(ji)械(xie)、探礦(kuang)機(ji)械(xie)等制造(zao)工(gong)業(ye)(ye)。

鍍(du)(du)鋅鋼(gang)管(guan)(guan)表面有熱浸鍍(du)(du)或電鍍(du)(du)鋅層的(de)焊接(jie)鋼(gang)管(guan)(guan)。鍍(du)(du)鋅可增加鋼(gang)管(guan)(guan)的(de)抗腐蝕(shi)能力，延長使用(yong)壽(shou)命(ming)。鍍(du)(du)鋅管(guan)(guan)的(de)用(yong)途很廣，除作輸水、煤氣、油(you)等一般(ban)低壓力流體的(de)管(guan)(guan)線(xian)管(guan)(guan)外(wai)，還用(yong)作石(shi)油(you)工(gong)業特別是(shi)海洋油(you)田的(de)油(you)井(jing)管(guan)(guan)、輸油(you)管(guan)(guan)，化(hua)工(gong)焦(jiao)化(hua)設備的(de)油(you)加熱器、冷(leng)(leng)凝(ning)冷(leng)(leng)卻器、煤餾洗油(you)交換器用(yong)管(guan)(guan)，以及棧(zhan)橋管(guan)(guan)樁、礦山坑道的(de)支撐架用(yong)管(guan)(guan)等。