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

工藝流程 1

  適合于煉鋼出來的材料(liao)，表(biao)面(mian)有一層氧化(hua)(hua)皮，經電(dian)化(hua)(hua)學(xue)(xue)(xue)拋(pao)(pao)光(guang)能(neng)獲得光(guang)亮如(ru)鏡的表(biao)面(mian)。堿(jian)性化(hua)(hua)學(xue)(xue)(xue)除油（氫氧化(hua)(hua)鈉50~80g/L,碳酸(suan)鈉20~30g/L,磷酸(suan)三鈉20~30g/L,洗(xi)(xi)(xi)(xi)衣粉7~10g/L,溫(wen)(wen)度(du)(du)95~100℃,時(shi)(shi)(shi)間(jian)15~30min)→熱水(shui)(shui)(shui)洗(xi)(xi)(xi)(xi)→冷(leng)(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)洗(xi)(xi)(xi)(xi)→去污粉擦洗(xi)(xi)(xi)(xi)→冷(leng)(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)洗(xi)(xi)(xi)(xi)→上(shang)夾具(ju)（接觸(chu)點用螺釘擰緊）→下電(dian)化(hua)(hua)學(xue)(xue)(xue)拋(pao)(pao)光(guang)槽(cao)(cao)［電(dian)化(hua)(hua)學(xue)(xue)(xue)拋(pao)(pao)光(guang)液按配方4,拋(pao)(pao)光(guang)件(jian)放在陽(yang)極(ji)上(shang)，鉛板放在陰(yin)(yin)極(ji)上(shang)，陰(yin)(yin)陽(yang)極(ji)面(mian)積比1:(2~3.5),調整好(hao)陰(yin)(yin)陽(yang)極(ji)之間(jian)距離(li)100~300mm]→給電(dian)拋(pao)(pao)光(guang)（電(dian)壓6~12V,陽(yang)極(ji)電(dian)流密度(du)(du)30~60A/d㎡,溫(wen)(wen)度(du)(du)50~80℃,時(shi)(shi)(shi)間(jian)8~3min)→斷(duan)電(dian)出槽(cao)(cao)→冷(leng)(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)洗(xi)(xi)(xi)(xi)→拆(chai)卸(xie)夾具(ju)→冷(leng)(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)洗(xi)(xi)(xi)(xi)→熱水(shui)(shui)(shui)洗(xi)(xi)(xi)(xi)→冷(leng)(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)洗(xi)(xi)(xi)(xi)→鈍(dun)化(hua)(hua)處理［硝酸(suan)（d=1.40)600~700mL/L，重鉻(ge)酸(suan)鉀8~10g/L,室溫(wen)(wen)，時(shi)(shi)(shi)間(jian)30~40min]→冷(leng)(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)洗(xi)(xi)(xi)(xi)→冷(leng)(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)洗(xi)(xi)(xi)(xi)→中和（碳酸(suan)鈉20~30g/L,室溫(wen)(wen)，時(shi)(shi)(shi)間(jian)2min)→熱水(shui)(shui)(shui)洗(xi)(xi)(xi)(xi)→干(gan)燥（0.3~0.5MPa壓縮空氣(qi)吹干(gan)并烘干(gan)）。

工藝流程(cheng) 2

 采用三次不(bu)同(tong)的拋(pao)光(guang)(guang)方(fang)法。拋(pao)光(guang)(guang)不(bu)銹(xiu)鋼零件可按此工序進行(xing)。機械拋(pao)光(guang)(guang)→化學除油→冷(leng)水(shui)洗→酸(suan)蝕(shi)(shi)（工業鹽酸(suan)加緩(huan)蝕(shi)(shi)劑(ji)六亞甲基四胺1~2g/L,室溫(wen)，時間1.0~2min;或(huo)工業硫酸(suan)200~250g/L,緩(huan)蝕(shi)(shi)劑(ji)硫脲0.3~0.5g/L,溫(wen)度80~98℃,時間3~5min)→冷(leng)水(shui)洗→冷(leng)水(shui)洗→化學拋(pao)光(guang)(guang)（按表3-1中(zhong)配方(fang)8或(huo)其他）→冷(leng)水(shui)洗→電解拋(pao)光(guang)(guang)（按表3-3中(zhong)配方(fang)，適當選取）→熱(re)水(shui)洗→冷(leng)水(shui)洗→鈍化→冷(leng)水(shui)洗→中(zhong)和→冷(leng)水(shui)洗→冷(leng)水(shui)洗→熱(re)水(shui)洗（90~98℃)→烘干。

工藝(yi)流程 3

 適合于切削加工馬氏(shi)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(yi)流程 4

 適合于有焊接縫氧(yang)化(hua)皮(pi)的不銹鋼。裝夾具→除油→水(shui)洗(xi)(xi)(xi)→去氧(yang)化(hua)皮(pi)（氫氧(yang)化(hua)鈉(na)95~105g/L,碳酸(suan)(suan)(suan)鈉(na)100~200g/L,高錳酸(suan)(suan)(suan)鉀(jia)80~90g/L,溫度60~70℃,零(ling)件(jian)掛陽極，DA35~45A/d㎡2,時間(jian)7~9min,陰(yin)極掛鉛板）→水(shui)洗(xi)(xi)(xi)→酸(suan)(suan)(suan)洗(xi)(xi)(xi)［硫酸(suan)(suan)(suan)10%~15%(質(zhi)量分數）］→水(shui)洗(xi)(xi)(xi)→光亮浸蝕（硫酸(suan)(suan)(suan)100mL/L,硝酸(suan)(suan)(suan)170mL/L,氫氟(fu)酸(suan)(suan)(suan)50mL/L,室(shi)溫，5~10min)→水(shui)洗(xi)(xi)(xi)→電化(hua)學(xue)拋光（按表(biao)3-3配(pei)方11進行）→水(shui)洗(xi)(xi)(xi)→水(shui)洗(xi)(xi)(xi)→鈍化(hua)（硝酸(suan)(suan)(suan)500mL/L,重鉻酸(suan)(suan)(suan)鉀(jia)10g/L,室(shi)溫，時間(jian)10min)→水(shui)洗(xi)(xi)(xi)→水(shui)洗(xi)(xi)(xi)→中和(he)（碳酸(suan)(suan)(suan)鈉(na)20~30g/L,室(shi)溫，2min)→水(shui)洗(xi)(xi)(xi)→水(shui)洗(xi)(xi)(xi)→熱(re)水(shui)洗(xi)(xi)(xi)→吹(chui)干→下夾具。