五金加工就是(shi)將原材(cai)料(liao)(不銹鋼、銅料(liao)、鋁料(liao)、鐵料(liao))，用(yong)車床、銑床、鉆床、磨(mo)床、拋(pao)光(guang)(guang)等(deng)(deng)機械按客戶的圖紙或(huo)樣品加(jia)(jia)工(gong)(gong)(gong)(gong)成為(wei)(wei)各種零件(jian)，如：螺絲(si) 、馬達軸、模型車零件(jian)、移動電源外(wai)殼等(deng)(deng)。五(wu)(wu)金(jin)表(biao)(biao)面(mian)加(jia)(jia)工(gong)(gong)(gong)(gong)細分可分為(wei)(wei)：五(wu)(wu)金(jin)噴漆加(jia)(jia)工(gong)(gong)(gong)(gong)、電鍍、表(biao)(biao)面(mian)拋(pao)光(guang)(guang)加(jia)(jia)工(gong)(gong)(gong)(gong)、五(wu)(wu)金(jin)腐蝕(shi)加(jia)(jia)工(gong)(gong)(gong)(gong)等(deng)(deng)等(deng)(deng)。拋(pao)光(guang)(guang)：原理是(shi)指通過有規則(ze)溶解達到光(guang)(guang)亮(liang)平滑；方法(fa)：利用(yong)機械、化(hua)學或(huo)電化(hua)學的作(zuo)用(yong)，使工(gong)(gong)(gong)(gong)件(jian)表(biao)(biao)面(mian)粗糙度降低，得(de)(de)以(yi)是(shi)五(wu)(wu)金(jin)加(jia)(jia)工(gong)(gong)(gong)(gong)獲(huo)得(de)(de)光(guang)(guang)亮(liang)、平整表(biao)(biao)面(mian)的加(jia)(jia)工(gong)(gong)(gong)(gong)方法(fa)。是(shi)利用(yong)拋(pao) 光(guang)(guang)工(gong)(gong)(gong)(gong)具和磨(mo)料(liao)顆粒或(huo)其(qi)他拋(pao)光(guang)(guang)介質對工(gong)(gong)(gong)(gong)件(jian)表(biao)(biao)面(mian)進行的修飾加(jia)(jia)工(gong)(gong)(gong)(gong)。

五(wu)金加(jia)工的(de)氧(yang)(yang)(yang)化(hua)分(fen)為鋁硬質氧(yang)(yang)(yang)化(hua)、壓(ya)鑄(zhu)鋁氧(yang)(yang)(yang)化(hua)、彩色(se)氧(yang)(yang)(yang)化(hua)、鋁陽極氧(yang)(yang)(yang)化(hua)、本色(se)氧(yang)(yang)(yang)化(hua)等。鈍(dun)化(hua)：原(yuan)理(li)可以用(yong)薄(bo)膜理(li)論來解釋，鈍(dun)化(hua)是由于金屬(shu)與氧(yang)(yang)(yang)化(hua)性(xing)物質作用(yong)，作用(yong)時(shi)在(zai)金屬(shu)表面(mian)生成 一種非常薄(bo)的(de)、致密的(de)、覆蓋(gai)性(xing)能良好的(de)、牢固地(di)吸附在(zai)金屬(shu) 表面(mian)上(shang)的(de)鈍(dun)化(hua)膜。與傳統的(de)物理(li)封(feng)閉法相比，鈍(dun)化(hua)處(chu)理(li)后(hou)具有絕(jue)-對不增加(jia)工件厚度(du)和改變顏色(se)的(de)特(te)點、提高了產品的(de)精密度(du)和附加(jia)值，使操作更方便(bian)。

背(bei)膠：背(bei)膠是(shi)郵票的重要(yao)特征(zheng)之一。機(ji)加(jia)工(gong)：車削加(jia)工(gong)、刨削加(jia)工(gong)、銑削加(jia)工(gong)、磨削加(jia)工(gong)，滾牙(ya)：牙(ya)使用兩個(ge)帶有螺(luo)紋(wen)的棍子(zi)來(lai)(lai)擠壓被加(jia)工(gong)的工(gong)件，使零件表(biao)面(mian)被壓出螺(luo)紋(wen)。攻牙(ya)：攻牙(ya)就是(shi)板牙(ya)，是(shi)用來(lai)(lai)加(jia)工(gong)或修理外螺(luo)紋(wen)的，它的內部是(shi)有螺(luo)紋(wen)的，可手工(gong)加(jia)工(gong)也(ye)可以(yi)用在(zai)套絲機(ji)上(shang)。電(dian)鍍(du)(du)：電(dian)鍍(du)(du)分(fen)為(wei)掛(gua)鍍(du)(du)、滾鍍(du)(du)、連續鍍(du)(du)和(he)(he)刷鍍(du)(du)等方式(shi)，主要(yao)與待鍍(du)(du)件的尺寸和(he)(he)批量有關(guan)。

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