不銹鋼電解拋光工藝流程要根據表面不同的情形、不銹鋼(gang)的種類選擇適合的操作程序。

工(gong)藝流(liu)程 1

  適合于煉(lian)鋼出(chu)來的材料(liao)，表面(mian)有(you)一層氧化(hua)皮，經(jing)電(dian)(dian)(dian)化(hua)學(xue)拋光能獲得光亮如鏡的表面(mian)。堿性化(hua)學(xue)除(chu)油（氫氧化(hua)鈉50~80g/L,碳酸(suan)鈉20~30g/L,磷酸(suan)三鈉20~30g/L,洗(xi)(xi)(xi)衣粉(fen)7~10g/L,溫度95~100℃,時(shi)(shi)間(jian)15~30min)→熱(re)水(shui)(shui)(shui)洗(xi)(xi)(xi)→冷(leng)(leng)水(shui)(shui)(shui)洗(xi)(xi)(xi)→去污粉(fen)擦洗(xi)(xi)(xi)→冷(leng)(leng)水(shui)(shui)(shui)洗(xi)(xi)(xi)→上夾(jia)具（接觸點用螺釘擰緊）→下電(dian)(dian)(dian)化(hua)學(xue)拋光槽［電(dian)(dian)(dian)化(hua)學(xue)拋光液按配(pei)方(fang)4,拋光件放在陽(yang)極(ji)上，鉛板(ban)放在陰極(ji)上，陰陽(yang)極(ji)面(mian)積比1:(2~3.5),調整好陰陽(yang)極(ji)之間(jian)距離100~300mm]→給電(dian)(dian)(dian)拋光（電(dian)(dian)(dian)壓(ya)6~12V,陽(yang)極(ji)電(dian)(dian)(dian)流密度30~60A/d㎡,溫度50~80℃,時(shi)(shi)間(jian)8~3min)→斷電(dian)(dian)(dian)出(chu)槽→冷(leng)(leng)水(shui)(shui)(shui)洗(xi)(xi)(xi)→拆卸夾(jia)具→冷(leng)(leng)水(shui)(shui)(shui)洗(xi)(xi)(xi)→熱(re)水(shui)(shui)(shui)洗(xi)(xi)(xi)→冷(leng)(leng)水(shui)(shui)(shui)洗(xi)(xi)(xi)→鈍化(hua)處理［硝酸(suan)（d=1.40)600~700mL/L，重鉻酸(suan)鉀(jia)8~10g/L,室溫，時(shi)(shi)間(jian)30~40min]→冷(leng)(leng)水(shui)(shui)(shui)洗(xi)(xi)(xi)→冷(leng)(leng)水(shui)(shui)(shui)洗(xi)(xi)(xi)→中和(he)（碳酸(suan)鈉20~30g/L,室溫，時(shi)(shi)間(jian)2min)→熱(re)水(shui)(shui)(shui)洗(xi)(xi)(xi)→干(gan)(gan)(gan)燥（0.3~0.5MPa壓(ya)縮空氣吹干(gan)(gan)(gan)并烘干(gan)(gan)(gan)）。

工(gong)藝流程 2

 采用三次不同的拋(pao)(pao)光方法。拋(pao)(pao)光不銹鋼零件(jian)可(ke)按此工序進(jin)行(xing)。機(ji)械拋(pao)(pao)光→化(hua)(hua)學(xue)除(chu)油→冷(leng)(leng)(leng)水(shui)洗(xi)(xi)→酸(suan)蝕(shi)（工業鹽(yan)酸(suan)加緩蝕(shi)劑(ji)六亞甲基四(si)胺(an)1~2g/L,室溫，時(shi)間(jian)(jian)1.0~2min;或(huo)工業硫酸(suan)200~250g/L,緩蝕(shi)劑(ji)硫脲0.3~0.5g/L,溫度80~98℃,時(shi)間(jian)(jian)3~5min)→冷(leng)(leng)(leng)水(shui)洗(xi)(xi)→冷(leng)(leng)(leng)水(shui)洗(xi)(xi)→化(hua)(hua)學(xue)拋(pao)(pao)光（按表(biao)3-1中(zhong)配方8或(huo)其他）→冷(leng)(leng)(leng)水(shui)洗(xi)(xi)→電解拋(pao)(pao)光（按表(biao)3-3中(zhong)配方，適當選取）→熱(re)(re)水(shui)洗(xi)(xi)→冷(leng)(leng)(leng)水(shui)洗(xi)(xi)→鈍(dun)化(hua)(hua)→冷(leng)(leng)(leng)水(shui)洗(xi)(xi)→中(zhong)和→冷(leng)(leng)(leng)水(shui)洗(xi)(xi)→冷(leng)(leng)(leng)水(shui)洗(xi)(xi)→熱(re)(re)水(shui)洗(xi)(xi)（90~98℃)→烘干。

工藝流程(cheng) 3

 適合于切削加工馬氏體不銹鋼(gang)制品，經一次電化學拋光、鈍化得成品。裝夾具→電化學除油（氫氧化鈉15~25g/L,碳酸鈉25~35g/L,磷酸三鈉10~20g/L,溫度55~60℃,陽極DA2~5A/d㎡2,時間1~2min)→熱水洗→冷水洗→酸蝕［硫酸（d=1.84)10%~15%(質量分數），室溫，30~60秒]→冷水洗→電化學拋光（溶液按表3-3配方7配制）→冷水洗→冷水洗→鈍化（硝酸250mL/L,重鉻酸鉀20g/L,室溫，時間＜30min;或重鉻酸鉀15g/L,氫氧化鈉3g/L,pH6.5~7.5,溫度60~80℃,時間3min)→冷水洗→冷水洗→中和（只用鈍化前一個配方時進行，碳酸鈉20~30g/L)→冷水洗→冷水洗→熱水洗→干燥（壓縮空氣吹干）。

工藝流程 4

 適合于有焊接縫氧化(hua)皮的不銹鋼。裝夾具(ju)→除油→水(shui)(shui)(shui)(shui)(shui)洗(xi)→去氧化(hua)皮（氫氧化(hua)鈉95~105g/L,碳酸(suan)(suan)(suan)鈉100~200g/L,高錳酸(suan)(suan)(suan)鉀80~90g/L,溫(wen)(wen)度60~70℃,零件(jian)掛陽(yang)極(ji)，DA35~45A/d㎡2,時(shi)間7~9min,陰極(ji)掛鉛板）→水(shui)(shui)(shui)(shui)(shui)洗(xi)→酸(suan)(suan)(suan)洗(xi)［硫酸(suan)(suan)(suan)10%~15%(質(zhi)量分數）］→水(shui)(shui)(shui)(shui)(shui)洗(xi)→光(guang)亮浸蝕（硫酸(suan)(suan)(suan)100mL/L,硝酸(suan)(suan)(suan)170mL/L,氫氟酸(suan)(suan)(suan)50mL/L,室溫(wen)(wen)，5~10min)→水(shui)(shui)(shui)(shui)(shui)洗(xi)→電化(hua)學拋(pao)光(guang)（按(an)表3-3配方11進行）→水(shui)(shui)(shui)(shui)(shui)洗(xi)→水(shui)(shui)(shui)(shui)(shui)洗(xi)→鈍(dun)化(hua)（硝酸(suan)(suan)(suan)500mL/L,重鉻酸(suan)(suan)(suan)鉀10g/L,室溫(wen)(wen)，時(shi)間10min)→水(shui)(shui)(shui)(shui)(shui)洗(xi)→水(shui)(shui)(shui)(shui)(shui)洗(xi)→中和（碳酸(suan)(suan)(suan)鈉20~30g/L,室溫(wen)(wen)，2min)→水(shui)(shui)(shui)(shui)(shui)洗(xi)→水(shui)(shui)(shui)(shui)(shui)洗(xi)→熱(re)水(shui)(shui)(shui)(shui)(shui)洗(xi)→吹干→下夾具(ju)。