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　　河(he)(he)源熱鍍(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)管(guan)(guan)(guan)和冷(leng)鍍(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)哪里(li)不(bu)一(yi)(yi)(yi)樣(yang) 　　河(he)(he)源熱鍍(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)管(guan)(guan)(guan)是使熔融的(de)(de)金屬與(yu)鐵基(ji)(ji)體(ti)反(fan)響生(sheng)成合金層，使基(ji)(ji)體(ti)與(yu)鍍(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)層結合。熱鍍(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)是對鋼(gang)(gang)管(guan)(guan)(guan)進(jin)行酸洗(xi)(xi)，以除掉鋼(gang)(gang)管(guan)(guan)(guan)外(wai)表的(de)(de)氧化鐵，酸洗(xi)(xi)后(hou)，經(jing)過氯化銨或氯化鋅(xin)(xin)(xin)(xin)(xin)(xin)溶(rong)液(ye)或氯化銨和氯化鋅(xin)(xin)(xin)(xin)(xin)(xin)混(hun)合溶(rong)液(ye)槽進(jin)行清洗(xi)(xi)，然后(hou)進(jin)入熱浸。洗(xi)(xi)澡。熱鍍(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)具有涂層均勻、附著力強、運用壽命長等(deng)長處。 　　河(he)(he)源冷(leng)鍍(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)便(bian)是電鍍(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)，鍍(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)量很少，只要(yao)10-50g/m2其自身的(de)(de)耐(nai)腐(fu)蝕性比熱鍍(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)管(guan)(guan)(guan)相差(cha)許多(duo)。正規(gui)的(de)(de)鍍(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)管(guan)(guan)(guan)生(sheng)產廠家(jia)，為了保(bao)證質量，大多(duo)不(bu)選(xuan)用電鍍(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(冷(leng)鍍(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(du))。只要(yao)規(gui)劃小(xiao)、設備陳(chen)舊(jiu)的(de)(de)小(xiao)企(qi)業選(xuan)用電鍍(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)，當然他們(men)的(de)(de)價格(ge)也(ye)相對廉價一(yi)(yi)(yi)些。建設部已正式下文，篩選(xuan)技術落后(hou)的(de)(de)冷(leng)鍍(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)管(guan)(guan)(guan)，禁絕用冷(leng)鍍(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)管(guan)(guan)(guan)作水、煤氣管(guan)(guan)(guan)。 　　一(yi)(yi)(yi)般(ban)現在(zai)用的(de)(de)鍍(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)管(guan)(guan)(guan)都(dou)是熱鍍(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)的(de)(de)，而電氣上用的(de)(de)線槽等(deng)用的(de)(de)是冷(leng)鍍(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)，色彩有必定的(de)(de)差(cha)異，冷(leng)鍍(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)只在(zai)外(wai)管(guan)(guan)(guan)壁(bi)鍍(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)，熱鍍(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)表里(li)都(dou)鍍(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)，鍍(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)焊(han)管(guan)(guan)(guan)是在(zai)焊(han)接鋼(gang)(gang)管(guan)(guan)(guan)的(de)(de)基(ji)(ji)礎上再熱鍍(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(即在(zai)鋅(xin)(xin)(xin)(xin)(xin)(xin)鍋內(nei)將(jiang)鋅(xin)(xin)(xin)(xin)(xin)(xin)溶(rong)化，再將(jiang)鋼(gang)(gang)管(guan)(guan)(guan)浸入液(ye)體(ti)鋅(xin)(xin)(xin)(xin)(xin)(xin)中一(yi)(yi)(yi)段時(shi)刻取出，再冷(leng)卻吹干)。，使鋼(gang)(gang)管(guan)(guan)(guan)表里(li)壁(bi)一(yi)(yi)(yi)起(qi)有一(yi)(yi)(yi)層鋅(xin)(xin)(xin)(xin)(xin)(xin)層附著。，鍍(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)管(guan)(guan)(guan)一(yi)(yi)(yi)般(ban)用于(yu)低壓流體(ti)(即水，液(ye)體(ti)煤氣)的(de)(de)運送。