五金加工就是將原材(cai)料(不銹鋼、銅(tong)料、鋁料、鐵料)，用(yong)(yong)車(che)床(chuang)、銑床(chuang)、鉆(zhan)床(chuang)、磨床(chuang)、拋(pao)光(guang)等機(ji)械按客戶的圖紙或樣品加(jia)(jia)工(gong)(gong)(gong)成為各種零(ling)件(jian)，如：螺絲 、馬(ma)達軸、模型車(che)零(ling)件(jian)、移(yi)動電(dian)源外殼等。五(wu)金(jin)表面(mian)(mian)(mian)加(jia)(jia)工(gong)(gong)(gong)細分(fen)(fen)可分(fen)(fen)為：五(wu)金(jin)噴漆加(jia)(jia)工(gong)(gong)(gong)、電(dian)鍍、表面(mian)(mian)(mian)拋(pao)光(guang)加(jia)(jia)工(gong)(gong)(gong)、五(wu)金(jin)腐(fu)蝕加(jia)(jia)工(gong)(gong)(gong)等等。拋(pao)光(guang)：原理是指通過有規則溶(rong)解達到光(guang)亮平滑；方法(fa)：利用(yong)(yong)機(ji)械、化(hua)學或電(dian)化(hua)學的作用(yong)(yong)，使工(gong)(gong)(gong)件(jian)表面(mian)(mian)(mian)粗糙度(du)降低，得以是五(wu)金(jin)加(jia)(jia)工(gong)(gong)(gong)獲得光(guang)亮、平整表面(mian)(mian)(mian)的加(jia)(jia)工(gong)(gong)(gong)方法(fa)。是利用(yong)(yong)拋(pao) 光(guang)工(gong)(gong)(gong)具(ju)和(he)磨料顆粒或其他拋(pao)光(guang)介質對工(gong)(gong)(gong)件(jian)表面(mian)(mian)(mian)進行的修飾加(jia)(jia)工(gong)(gong)(gong)。

五(wu)金(jin)加(jia)工的(de)(de)氧(yang)(yang)化(hua)(hua)分為(wei)鋁硬質氧(yang)(yang)化(hua)(hua)、壓鑄鋁氧(yang)(yang)化(hua)(hua)、彩色(se)氧(yang)(yang)化(hua)(hua)、鋁陽極氧(yang)(yang)化(hua)(hua)、本色(se)氧(yang)(yang)化(hua)(hua)等。鈍(dun)化(hua)(hua)：原理可以用(yong)(yong)薄膜理論來解(jie)釋，鈍(dun)化(hua)(hua)是由(you)于金(jin)屬與(yu)(yu)氧(yang)(yang)化(hua)(hua)性(xing)物(wu)質作(zuo)用(yong)(yong)，作(zuo)用(yong)(yong)時在金(jin)屬表面(mian)生成 一種(zhong)非常薄的(de)(de)、致(zhi)密的(de)(de)、覆蓋性(xing)能(neng)良好的(de)(de)、牢(lao)固地吸(xi)附(fu)(fu)在金(jin)屬 表面(mian)上的(de)(de)鈍(dun)化(hua)(hua)膜。與(yu)(yu)傳統的(de)(de)物(wu)理封閉法相比，鈍(dun)化(hua)(hua)處理后(hou)具有(you)絕-對不增(zeng)加(jia)工件厚度(du)和改變顏色(se)的(de)(de)特點、提(ti)高了產品的(de)(de)精密度(du)和附(fu)(fu)加(jia)值，使操(cao)作(zuo)更方便。

背膠(jiao)：背膠(jiao)是(shi)(shi)郵票(piao)的(de)(de)重要特征之一。機加(jia)(jia)工(gong)(gong)(gong)：車(che)削(xue)加(jia)(jia)工(gong)(gong)(gong)、刨削(xue)加(jia)(jia)工(gong)(gong)(gong)、銑削(xue)加(jia)(jia)工(gong)(gong)(gong)、磨削(xue)加(jia)(jia)工(gong)(gong)(gong)，滾(gun)牙(ya)(ya)(ya)：牙(ya)(ya)(ya)使用(yong)(yong)兩(liang)個帶(dai)有螺紋(wen)的(de)(de)棍(gun)子來(lai)擠壓(ya)被加(jia)(jia)工(gong)(gong)(gong)的(de)(de)工(gong)(gong)(gong)件(jian)，使零件(jian)表面被壓(ya)出螺紋(wen)。攻(gong)牙(ya)(ya)(ya)：攻(gong)牙(ya)(ya)(ya)就是(shi)(shi)板(ban)牙(ya)(ya)(ya)，是(shi)(shi)用(yong)(yong)來(lai)加(jia)(jia)工(gong)(gong)(gong)或修理外(wai)螺紋(wen)的(de)(de)，它的(de)(de)內部是(shi)(shi)有螺紋(wen)的(de)(de)，可手工(gong)(gong)(gong)加(jia)(jia)工(gong)(gong)(gong)也(ye)可以用(yong)(yong)在套(tao)絲機上。電鍍(du)：電鍍(du)分(fen)為掛(gua)鍍(du)、滾(gun)鍍(du)、連續(xu)鍍(du)和(he)刷鍍(du)等(deng)方式，主要與待鍍(du)件(jian)的(de)(de)尺寸(cun)和(he)批量有關。

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