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這個中間退(tui)火叫再結晶(jing)退(tui)火,一般溫度(du)(du)在(zai)650~700℃。鋼(gang)件(jian)在(zai)冷加(jia)工過后(hou),晶(jing)粒產生變(bian)形(一般沿(yan)變(bian)形方向(xiang)呈纖維狀(zhuang)),位錯(cuo)密(mi)度(du)(du)增高,導致鋼(gang)的強度(du)(du)硬度(du)(du)增大(da),塑性韌性變(bian)差,此(ci)所謂(wei)的冷加(jia)工硬化...
熱(re)鍍(du)(du)(du)鋅鋼絲(hot-dipgalvanizedsteelwire)是把(ba)各種優質(zhi)中(zhong)碳鋼或優質(zhi)高碳鋼經(jing)酸洗、磷化(hua)、拔絲,再(zai)鍍(du)(du)(du)鋅(熱(re)鍍(du)(du)(du)或冷鍍(du)(du)(du))。熱(re)鍍(du)(du)(du)鋅工(gong)藝分為線(xian)外(wai)退(tui)火和線(xian)內退(tui)火兩大類,即...
1、鍍(du)鋅(xin)(xin)(xin)(xin)絲(si)又分為熱鍍(du)鋅(xin)(xin)(xin)(xin)絲(si)和冷(leng)鍍(du)鋅(xin)(xin)(xin)(xin)絲(si)(電鍍(du)鋅(xin)(xin)(xin)(xin)絲(si))區別為:熱鍍(du)鋅(xin)(xin)(xin)(xin)是(shi)在加熱融化(hua)的鋅(xin)(xin)(xin)(xin)液內浸鍍(du),生產速度(du)快,鍍(du)層(ceng)厚(hou)(hou)但不均(jun)勻,市場(chang)允許的低厚(hou)(hou)度(du)45微(wei)米,高可達300微(wei)米以上。顏(yan)色較暗,消耗鋅(xin)(xin)(xin)(xin)金(jin)...