都會用哪些方法來提高鍍鋅異形鋼管的耐銹性能呢?
關(guan)于異(yi)(yi)型無(wu)縫(feng)(feng)鋼(gang)(gang)管(guan)(guan)(guan)是除(chu)了圓管(guan)(guan)(guan)以外的其(qi)他截(jie)面(mian)形狀(zhuang)的無(wu)縫(feng)(feng)鋼(gang)(gang)管(guan)(guan)(guan)的總(zong)稱。按鋼(gang)(gang)管(guan)(guan)(guan)截(jie)面(mian)形狀(zhuang)尺寸的不(bu)同(tong)又可分為等壁厚異(yi)(yi)型無(wu)縫(feng)(feng)鋼(gang)(gang)管(guan)(guan)(guan)(代(dai)(dai)號(hao)為D)、不(bu)等壁厚異(yi)(yi)型無(wu)縫(feng)(feng)鋼(gang)(gang)管(guan)(guan)(guan)(代(dai)(dai)號(hao)為BD)、變(bian)直徑異(yi)(yi)型無(wu)縫(feng)(feng)鋼(gang)(gang)管(guan)(guan)(guan)(代(dai)(dai)號(hao)為BJ)。異(yi)(yi)型無(wu)縫(feng)(feng)鋼(gang)(gang)管(guan)(guan)(guan)廣泛用于各種結(jie)構件、工具和機械零(ling)部件。和圓管(guan)(guan)(guan)相比,異(yi)(yi)型管(guan)(guan)(guan)一般都有較大的慣(guan)性矩和截(jie)面(mian)模數,有較
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