五金加工就是將原(yuan)材料(不銹鋼、銅料、鋁料、鐵料)，用(yong)車床、銑床、鉆(zhan)床、磨床、拋光(guang)等機(ji)械(xie)按客(ke)戶的(de)圖紙(zhi)或(huo)樣品加(jia)(jia)工(gong)(gong)(gong)成為各種零件(jian)，如：螺絲 、馬達軸、模型車零件(jian)、移(yi)動電源外(wai)殼等。五(wu)(wu)金表(biao)(biao)面加(jia)(jia)工(gong)(gong)(gong)細(xi)分可分為：五(wu)(wu)金噴漆加(jia)(jia)工(gong)(gong)(gong)、電鍍、表(biao)(biao)面拋光(guang)加(jia)(jia)工(gong)(gong)(gong)、五(wu)(wu)金腐蝕(shi)加(jia)(jia)工(gong)(gong)(gong)等等。拋光(guang)：原(yuan)理是指(zhi)通(tong)過有規則溶解(jie)達到光(guang)亮平滑(hua)；方(fang)(fang)法：利用(yong)機(ji)械(xie)、化(hua)學或(huo)電化(hua)學的(de)作用(yong)，使工(gong)(gong)(gong)件(jian)表(biao)(biao)面粗(cu)糙度降低，得以是五(wu)(wu)金加(jia)(jia)工(gong)(gong)(gong)獲得光(guang)亮、平整表(biao)(biao)面的(de)加(jia)(jia)工(gong)(gong)(gong)方(fang)(fang)法。是利用(yong)拋 光(guang)工(gong)(gong)(gong)具和磨料顆(ke)粒或(huo)其他拋光(guang)介(jie)質對工(gong)(gong)(gong)件(jian)表(biao)(biao)面進(jin)行的(de)修飾加(jia)(jia)工(gong)(gong)(gong)。

五金加(jia)工的(de)(de)氧(yang)化(hua)(hua)(hua)分(fen)為鋁(lv)硬質氧(yang)化(hua)(hua)(hua)、壓鑄鋁(lv)氧(yang)化(hua)(hua)(hua)、彩(cai)色(se)(se)氧(yang)化(hua)(hua)(hua)、鋁(lv)陽極氧(yang)化(hua)(hua)(hua)、本色(se)(se)氧(yang)化(hua)(hua)(hua)等。鈍(dun)化(hua)(hua)(hua)：原(yuan)理可以用(yong)(yong)(yong)薄膜理論來(lai)解釋，鈍(dun)化(hua)(hua)(hua)是由于金屬與氧(yang)化(hua)(hua)(hua)性物(wu)質作用(yong)(yong)(yong)，作用(yong)(yong)(yong)時(shi)在(zai)金屬表面生成 一(yi)種(zhong)非(fei)常薄的(de)(de)、致密(mi)的(de)(de)、覆蓋性能良(liang)好的(de)(de)、牢固地吸附在(zai)金屬 表面上(shang)的(de)(de)鈍(dun)化(hua)(hua)(hua)膜。與傳統的(de)(de)物(wu)理封閉(bi)法相比(bi)，鈍(dun)化(hua)(hua)(hua)處(chu)理后具有絕-對不(bu)增(zeng)加(jia)工件厚度(du)和(he)改變(bian)顏色(se)(se)的(de)(de)特點、提(ti)高了(le)產品的(de)(de)精密(mi)度(du)和(he)附加(jia)值，使(shi)操作更方便(bian)。

背膠：背膠是郵票(piao)的重要特征(zheng)之(zhi)一。機加工(gong)(gong)：車削(xue)加工(gong)(gong)、刨削(xue)加工(gong)(gong)、銑削(xue)加工(gong)(gong)、磨(mo)削(xue)加工(gong)(gong)，滾牙：牙使用兩個帶有(you)螺(luo)紋(wen)(wen)的棍子來擠壓(ya)被(bei)(bei)加工(gong)(gong)的工(gong)(gong)件(jian)(jian)，使零(ling)件(jian)(jian)表面(mian)被(bei)(bei)壓(ya)出螺(luo)紋(wen)(wen)。攻牙：攻牙就是板牙，是用來加工(gong)(gong)或修理外螺(luo)紋(wen)(wen)的，它的內部是有(you)螺(luo)紋(wen)(wen)的，可手(shou)工(gong)(gong)加工(gong)(gong)也可以用在套絲機上。電鍍(du)(du)(du)：電鍍(du)(du)(du)分為掛(gua)鍍(du)(du)(du)、滾鍍(du)(du)(du)、連續(xu)鍍(du)(du)(du)和(he)刷鍍(du)(du)(du)等方式，主(zhu)要與(yu)待鍍(du)(du)(du)件(jian)(jian)的尺(chi)寸和(he)批量(liang)有(you)關。

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