都會用哪些方法來提高鍍鋅異形鋼管的耐銹性能呢?
關于(yu)異(yi)型(xing)無(wu)縫(feng)鋼(gang)管(guan)(guan)是除了圓管(guan)(guan)以外(wai)的(de)(de)其他截面(mian)形狀的(de)(de)無(wu)縫(feng)鋼(gang)管(guan)(guan)的(de)(de)總稱。按鋼(gang)管(guan)(guan)截面(mian)形狀尺寸的(de)(de)不(bu)同又可分(fen)為(wei)(wei)(wei)等(deng)壁厚異(yi)型(xing)無(wu)縫(feng)鋼(gang)管(guan)(guan)(代號(hao)(hao)為(wei)(wei)(wei)D)、不(bu)等(deng)壁厚異(yi)型(xing)無(wu)縫(feng)鋼(gang)管(guan)(guan)(代號(hao)(hao)為(wei)(wei)(wei)BD)、變直徑異(yi)型(xing)無(wu)縫(feng)鋼(gang)管(guan)(guan)(代號(hao)(hao)為(wei)(wei)(wei)BJ)。異(yi)型(xing)無(wu)縫(feng)鋼(gang)管(guan)(guan)廣泛用于(yu)各種結構件(jian)、工具和機(ji)械(xie)零部件(jian)。和圓管(guan)(guan)相(xiang)比,異(yi)型(xing)管(guan)(guan)一般都(dou)有較大的(de)(de)慣性矩和截面(mian)模(mo)數,有較
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