五金加工就是(shi)將原材料(liao)(liao)(不銹(xiu)鋼、銅料(liao)(liao)、鋁料(liao)(liao)、鐵(tie)料(liao)(liao))，用(yong)車床、銑(xian)床、鉆床、磨床、拋(pao)(pao)(pao)光(guang)(guang)等(deng)機(ji)械按客(ke)戶的圖(tu)紙(zhi)或樣品加(jia)工(gong)(gong)(gong)成為各種(zhong)零件，如：螺(luo)絲 、馬達(da)軸(zhou)、模型(xing)車零件、移動電(dian)源外(wai)殼等(deng)。五金(jin)(jin)表面加(jia)工(gong)(gong)(gong)細分可分為：五金(jin)(jin)噴漆加(jia)工(gong)(gong)(gong)、電(dian)鍍、表面拋(pao)(pao)(pao)光(guang)(guang)加(jia)工(gong)(gong)(gong)、五金(jin)(jin)腐(fu)蝕加(jia)工(gong)(gong)(gong)等(deng)等(deng)。拋(pao)(pao)(pao)光(guang)(guang)：原理是(shi)指通過有規則(ze)溶解達(da)到光(guang)(guang)亮平(ping)滑(hua)；方法(fa)：利用(yong)機(ji)械、化學或電(dian)化學的作用(yong)，使工(gong)(gong)(gong)件表面粗糙度降低，得以是(shi)五金(jin)(jin)加(jia)工(gong)(gong)(gong)獲得光(guang)(guang)亮、平(ping)整表面的加(jia)工(gong)(gong)(gong)方法(fa)。是(shi)利用(yong)拋(pao)(pao)(pao) 光(guang)(guang)工(gong)(gong)(gong)具(ju)和磨料(liao)(liao)顆粒或其(qi)他拋(pao)(pao)(pao)光(guang)(guang)介質對(dui)工(gong)(gong)(gong)件表面進(jin)行的修飾加(jia)工(gong)(gong)(gong)。

五金加工的(de)(de)(de)(de)氧化(hua)分為鋁(lv)硬質氧化(hua)、壓鑄鋁(lv)氧化(hua)、彩色氧化(hua)、鋁(lv)陽(yang)極氧化(hua)、本色氧化(hua)等。鈍(dun)(dun)化(hua)：原理可以用(yong)薄膜理論(lun)來(lai)解釋，鈍(dun)(dun)化(hua)是由于金屬與(yu)(yu)氧化(hua)性物質作(zuo)用(yong)，作(zuo)用(yong)時在金屬表面生成 一種非常薄的(de)(de)(de)(de)、致(zhi)密的(de)(de)(de)(de)、覆蓋性能(neng)良(liang)好的(de)(de)(de)(de)、牢固地吸(xi)附在金屬 表面上(shang)的(de)(de)(de)(de)鈍(dun)(dun)化(hua)膜。與(yu)(yu)傳統的(de)(de)(de)(de)物理封(feng)閉法相(xiang)比，鈍(dun)(dun)化(hua)處理后具有(you)絕(jue)-對不增加工件厚(hou)度和(he)改變顏(yan)色的(de)(de)(de)(de)特(te)點、提高了產(chan)品的(de)(de)(de)(de)精密度和(he)附加值，使操作(zuo)更(geng)方便。

背(bei)膠：背(bei)膠是(shi)郵票的重(zhong)要(yao)特征之一。機加(jia)(jia)工(gong)(gong)(gong)(gong)：車削加(jia)(jia)工(gong)(gong)(gong)(gong)、刨削加(jia)(jia)工(gong)(gong)(gong)(gong)、銑削加(jia)(jia)工(gong)(gong)(gong)(gong)、磨削加(jia)(jia)工(gong)(gong)(gong)(gong)，滾牙(ya)：牙(ya)使(shi)用兩個帶有(you)螺紋的棍子來擠(ji)壓(ya)被加(jia)(jia)工(gong)(gong)(gong)(gong)的工(gong)(gong)(gong)(gong)件(jian)，使(shi)零件(jian)表面被壓(ya)出螺紋。攻(gong)牙(ya)：攻(gong)牙(ya)就是(shi)板牙(ya)，是(shi)用來加(jia)(jia)工(gong)(gong)(gong)(gong)或(huo)修理外螺紋的，它的內部是(shi)有(you)螺紋的，可手工(gong)(gong)(gong)(gong)加(jia)(jia)工(gong)(gong)(gong)(gong)也(ye)可以(yi)用在套(tao)絲(si)機上。電(dian)鍍：電(dian)鍍分(fen)為掛鍍、滾鍍、連續(xu)鍍和刷鍍等(deng)方式，主要(yao)與(yu)待鍍件(jian)的尺寸和批量有(you)關。

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