都會用哪些方法來提高鍍鋅異形鋼管的耐銹性能呢?
關(guan)于(yu)異(yi)型(xing)(xing)(xing)無縫(feng)(feng)鋼(gang)管(guan)是除了圓(yuan)管(guan)以外的(de)(de)(de)其他截面(mian)形狀(zhuang)的(de)(de)(de)無縫(feng)(feng)鋼(gang)管(guan)的(de)(de)(de)總稱。按鋼(gang)管(guan)截面(mian)形狀(zhuang)尺(chi)寸的(de)(de)(de)不同又可(ke)分為(wei)等壁厚異(yi)型(xing)(xing)(xing)無縫(feng)(feng)鋼(gang)管(guan)(代(dai)號(hao)為(wei)D)、不等壁厚異(yi)型(xing)(xing)(xing)無縫(feng)(feng)鋼(gang)管(guan)(代(dai)號(hao)為(wei)BD)、變(bian)直徑異(yi)型(xing)(xing)(xing)無縫(feng)(feng)鋼(gang)管(guan)(代(dai)號(hao)為(wei)BJ)。異(yi)型(xing)(xing)(xing)無縫(feng)(feng)鋼(gang)管(guan)廣(guang)泛(fan)用(yong)于(yu)各種(zhong)結構件(jian)、工(gong)具和(he)機械零部(bu)件(jian)。和(he)圓(yuan)管(guan)相比,異(yi)型(xing)(xing)(xing)管(guan)一般都(dou)有(you)較大的(de)(de)(de)慣性矩和(he)截面(mian)模數,有(you)較
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