五金加工就是將原材料(不(bu)銹鋼、銅料、鋁料、鐵料)，用(yong)車床(chuang)、銑床(chuang)、鉆床(chuang)、磨床(chuang)、拋(pao)光(guang)等(deng)機械按客(ke)戶的圖紙或樣(yang)品加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)成為(wei)各種零件，如：螺絲(si) 、馬達軸(zhou)、模型車零件、移(yi)動電源外殼等(deng)。五(wu)(wu)金表面加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)細分(fen)可分(fen)為(wei)：五(wu)(wu)金噴漆加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)、電鍍、表面拋(pao)光(guang)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)、五(wu)(wu)金腐蝕加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)等(deng)等(deng)。拋(pao)光(guang)：原理是指通過有規則溶解達到(dao)光(guang)亮(liang)平(ping)滑；方(fang)法：利(li)用(yong)機械、化(hua)學(xue)或電化(hua)學(xue)的作用(yong)，使工(gong)(gong)(gong)件表面粗糙度(du)降低，得以是五(wu)(wu)金加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)獲得光(guang)亮(liang)、平(ping)整表面的加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)方(fang)法。是利(li)用(yong)拋(pao) 光(guang)工(gong)(gong)(gong)具和磨料顆粒或其他拋(pao)光(guang)介質對工(gong)(gong)(gong)件表面進(jin)行的修飾(shi)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)。

五金加(jia)工的(de)(de)氧(yang)(yang)(yang)化(hua)(hua)(hua)分為鋁(lv)硬(ying)質氧(yang)(yang)(yang)化(hua)(hua)(hua)、壓鑄鋁(lv)氧(yang)(yang)(yang)化(hua)(hua)(hua)、彩色氧(yang)(yang)(yang)化(hua)(hua)(hua)、鋁(lv)陽(yang)極氧(yang)(yang)(yang)化(hua)(hua)(hua)、本色氧(yang)(yang)(yang)化(hua)(hua)(hua)等。鈍化(hua)(hua)(hua)：原(yuan)理可以用薄膜理論(lun)來解釋，鈍化(hua)(hua)(hua)是由(you)于金屬(shu)與氧(yang)(yang)(yang)化(hua)(hua)(hua)性物(wu)質作(zuo)用，作(zuo)用時(shi)在(zai)金屬(shu)表面(mian)生(sheng)成(cheng) 一種非常薄的(de)(de)、致密(mi)的(de)(de)、覆蓋(gai)性能良好的(de)(de)、牢固地吸附(fu)(fu)在(zai)金屬(shu) 表面(mian)上的(de)(de)鈍化(hua)(hua)(hua)膜。與傳統的(de)(de)物(wu)理封閉法相比(bi)，鈍化(hua)(hua)(hua)處理后具(ju)有絕-對不增加(jia)工件厚度和改變顏色的(de)(de)特點(dian)、提高了(le)產(chan)品的(de)(de)精(jing)密(mi)度和附(fu)(fu)加(jia)值(zhi)，使操作(zuo)更方便。

背膠(jiao)：背膠(jiao)是郵票的(de)重要(yao)特征之一。機(ji)加(jia)(jia)工(gong)(gong)：車削(xue)(xue)加(jia)(jia)工(gong)(gong)、刨削(xue)(xue)加(jia)(jia)工(gong)(gong)、銑削(xue)(xue)加(jia)(jia)工(gong)(gong)、磨削(xue)(xue)加(jia)(jia)工(gong)(gong)，滾(gun)(gun)牙(ya)：牙(ya)使(shi)用兩個帶有螺(luo)紋(wen)(wen)的(de)棍子來擠(ji)壓(ya)被(bei)加(jia)(jia)工(gong)(gong)的(de)工(gong)(gong)件(jian)，使(shi)零件(jian)表面被(bei)壓(ya)出螺(luo)紋(wen)(wen)。攻牙(ya)：攻牙(ya)就(jiu)是板牙(ya)，是用來加(jia)(jia)工(gong)(gong)或修理外螺(luo)紋(wen)(wen)的(de)，它的(de)內(nei)部(bu)是有螺(luo)紋(wen)(wen)的(de)，可(ke)手工(gong)(gong)加(jia)(jia)工(gong)(gong)也可(ke)以用在(zai)套絲機(ji)上。電(dian)鍍(du)：電(dian)鍍(du)分為(wei)掛鍍(du)、滾(gun)(gun)鍍(du)、連續鍍(du)和刷鍍(du)等方式，主要(yao)與待鍍(du)件(jian)的(de)尺寸和批量(liang)有關(guan)。

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