金屬表面處理：利用現代物理化學、金屬學和熱處理等學科的邊緣性新技術來改變金屬表面的狀況和性質，使之與材料作優化組合，以達到預定性能要求的工藝方法，稱為金屬表面處理。模具的(de)(de)表(biao)(biao)面處理技(ji)術，是通過表(biao)(biao)面涂覆、表(biao)(biao)面改性或復合處理技(ji)術，改變(bian)模具表(biao)(biao)面的(de)(de)形態(tai)、化(hua)學成分、組織結構和應力狀態(tai)，以(yi)獲得所需表(biao)(biao)面性能的(de)(de)系統工程。

金(jin)屬表面(mian)處理(li)性(xing)能(neng)指：耐(nai)磨(mo)損性(xing)能(neng)、耐(nai)腐蝕性(xing)能(neng)、摩(mo)擦系數、疲勞性(xing)能(neng)等。常用(yong)的處理(li)工(gong)藝(yi)種(zhong)類有鍍(du)鋅、鍍(du)錫、鍍(du)銅、鍍(du)鎳、鍍(du)鉻、發黑(hei)、磷化、噴涂、拋光。

鍍鋅(xin)(xin)：鍍鋅(xin)(xin)是指在(zai)(zai)金(jin)屬、合金(jin)或(huo)(huo)(huo)(huo)者其它(ta)材料的(de)(de)表(biao)面(mian)(mian)(mian)鍍一(yi)層鋅(xin)(xin)以(yi)起美(mei)觀(guan)、防(fang)(fang)(fang)銹等作用(yong)(yong)(yong)的(de)(de)表(biao)面(mian)(mian)(mian)處理技術(shu)。鋼鐵零件(jian)(jian)(jian)上鍍鋅(xin)(xin)主要(yao)(yao)作用(yong)(yong)(yong)是防(fang)(fang)(fang)腐(fu)(fu)蝕。鍍錫：洗的(de)(de)腐(fu)(fu)蝕產(chan)物(wu)對人類無害，且易(yi)于釬焊，鍍錫廣(guang)泛(fan)用(yong)(yong)(yong)于食品罐(guan)頭包裝(zhuang)制品、飲具(ju)、餐(can)具(ju)及電子工(gong)(gong)(gong)業中(zhong)很(hen)多(duo)需要(yao)(yao)釬焊的(de)(de)零件(jian)(jian)(jian)； 鍍銅：鍍銅常作為(wei)其它(ta)鍍層的(de)(de)中(zhong)間層，以(yi)提(ti)高表(biao)面(mian)(mian)(mian)鍍層和基(ji)體金(jin)屬的(de)(de)結合力。 鍍鎳(nie)(nie)：鍍鎳(nie)(nie)的(de)(de)應(ying)用(yong)(yong)(yong)面(mian)(mian)(mian)很(hen)廣(guang)，可用(yong)(yong)(yong)于防(fang)(fang)(fang)護裝(zhuang)飾(shi)(shi)性(xing)(xing)(xing)(xing)和功能性(xing)(xing)(xing)(xing)兩(liang)方面(mian)(mian)(mian)。 鍍鉻：鉻在(zai)(zai)大氣中(zhong)能長久(jiu)保持光(guang)(guang)澤，在(zai)(zai)堿液、硝酸(suan)、硫酸(suan)及許多(duo)有(you)(you)機(ji)酸(suan)中(zhong)不發(fa)生反(fan)應(ying)，鍍鉻層有(you)(you)很(hen)高的(de)(de)硬度和優良的(de)(de)耐磨性(xing)(xing)(xing)(xing)及較低的(de)(de)摩擦系(xi)數，故鍍鉻常用(yong)(yong)(yong)于防(fang)(fang)(fang)護裝(zhuang)飾(shi)(shi)性(xing)(xing)(xing)(xing)鍍層，防(fang)(fang)(fang)止基(ji)體金(jin)屬生銹和美(mei)化(hua)(hua)(hua)外觀(guan)，也常用(yong)(yong)(yong)于提(ti)高制品的(de)(de)耐磨性(xing)(xing)(xing)(xing)或(huo)(huo)(huo)(huo)修復磨損(sun)； 發(fa)黑：鋼制件(jian)(jian)(jian)的(de)(de)表(biao)面(mian)(mian)(mian)發(fa)黑處理，也有(you)(you)被(bei)稱之(zhi)為(wei)發(fa)藍的(de)(de)。其原理是將鋼鐵制品表(biao)面(mian)(mian)(mian)迅速氧化(hua)(hua)(hua),使之(zhi)形成致密(mi)的(de)(de)氧化(hua)(hua)(hua)膜保護層，提(ti)高鋼件(jian)(jian)(jian)的(de)(de)防(fang)(fang)(fang)銹能力； 磷(lin)化(hua)(hua)(hua)：是一(yi)種化(hua)(hua)(hua)學(xue)與(yu)電化(hua)(hua)(hua)學(xue)反(fan)應(ying)形成磷(lin)酸(suan)鹽(yan)化(hua)(hua)(hua)學(xue)轉(zhuan)化(hua)(hua)(hua)膜的(de)(de)過(guo)程(cheng)，所形成的(de)(de)磷(lin)酸(suan)鹽(yan)轉(zhuan)化(hua)(hua)(hua)膜稱之(zhi)為(wei)磷(lin)化(hua)(hua)(hua)膜。磷(lin)化(hua)(hua)(hua)的(de)(de)目的(de)(de)主要(yao)(yao)是：給基(ji)體金(jin)屬提(ti)供保護，在(zai)(zai)一(yi)定程(cheng)度上防(fang)(fang)(fang)止金(jin)屬被(bei)腐(fu)(fu)蝕；用(yong)(yong)(yong)于涂漆前打底，提(ti)高漆膜層的(de)(de)附著力與(yu)防(fang)(fang)(fang)腐(fu)(fu)蝕能力；在(zai)(zai)金(jin)屬冷加(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)藝中(zhong)起減摩潤滑(hua)使用(yong)(yong)(yong)； 噴涂：利(li)(li)用(yong)(yong)(yong)壓力或(huo)(huo)(huo)(huo)靜(jing)電力將油漆或(huo)(huo)(huo)(huo)粉末附著在(zai)(zai)工(gong)(gong)(gong)件(jian)(jian)(jian)表(biao)面(mian)(mian)(mian)，使工(gong)(gong)(gong)件(jian)(jian)(jian)有(you)(you)防(fang)(fang)(fang)腐(fu)(fu)和外觀(guan)裝(zhuang)飾(shi)(shi)作用(yong)(yong)(yong)； 拋光(guang)(guang)：利(li)(li)用(yong)(yong)(yong)柔(rou)性(xing)(xing)(xing)(xing)拋光(guang)(guang)工(gong)(gong)(gong)具(ju)和磨料顆粒或(huo)(huo)(huo)(huo)其他拋光(guang)(guang)介(jie)質對工(gong)(gong)(gong)件(jian)(jian)(jian)表(biao)面(mian)(mian)(mian)進行的(de)(de)修飾(shi)(shi)加(jia)工(gong)(gong)(gong)。拋光(guang)(guang)不能提(ti)高工(gong)(gong)(gong)件(jian)(jian)(jian)的(de)(de)尺寸精(jing)度或(huo)(huo)(huo)(huo)幾何形狀精(jing)度，而是以(yi)得到光(guang)(guang)滑(hua)表(biao)面(mian)(mian)(mian)或(huo)(huo)(huo)(huo)鏡面(mian)(mian)(mian)光(guang)(guang)澤為(wei)目的(de)(de)，有(you)(you)時也用(yong)(yong)(yong)以(yi)消除光(guang)(guang)澤。