1. 鎳-鎢-鈷合金(jin)電刷鍍液的性質


  鎳-鎢-鈷合金電刷鍍液是在鎳-鎢合金鍍液的基礎上加入少量的硫酸鈷等成分組成的鎳-鎢-鈷鍍液。它是酸性鍍液,pH=1.2~2.4,深綠色,20℃時相對密度為1.29,電導率為2.052 Ω-1·cm-1



2. 鎳-鎢-鈷合金電刷(shua)鍍層(ceng)的性質和用途(tu)


  鎳-鎢-鈷鍍(du)層硬度高(gao),致密、孔隙少,在較高(gao)的(de)溫度下(xia)仍具有一定的(de)硬度,其優點(dian)是鍍(du)層的(de)應力小,可(ke)沉積(ji)較厚的(de)鍍(du)層,即可(ke)達0.20mm,主要用來沉積(ji)耐磨的(de)表面(mian)層。



3. 鎳-鎢-鈷合金(jin)電刷鍍(du)液的成分


 硫酸鎳(NiSO4·7H2O)   393g/L  、 硫酸鎂(MgSO4·7H2O)  2g/L


 鎢酸鈉(Na2WO4·2H2O)   23g/L  、冰醋酸(CH3COOH)  20mL/L


 甲酸(HCOOH)  35g/L  、 硼酸(H3BO3) 31mL/L  、氟化鈉(NaF) 5g/L


 檸檬酸(H3C6H5O7·H2O)  42g/L  、硫酸鈉(Na2SO4)  6.5g/L


 十二烷基硫酸鈉[CH3(CH2)11 SO4Na]  0.01~0.001g/L


 硫酸鈷(CoSO4·7H2O)  2g/L   、 硫酸錳(MnSO4·4H2O)  2g/L



4. 鎳(nie)-鎢-鈷合金電刷鍍液的配(pei)制(zhi)


  在1000mL燒(shao)杯(bei)中(zhong)(zhong)加(jia)(jia)(jia)入蒸餾(liu)水(shui)350mL,加(jia)(jia)(jia)熱(re)(re)(re)至(zhi)70℃,加(jia)(jia)(jia)入硫(liu)(liu)(liu)酸(suan)(suan)(suan)(suan)(suan)鎳(nie)393g,攪(jiao)(jiao)(jiao)拌(ban)(ban)(ban)溶(rong)(rong)解(jie)。另(ling)取250ml,燒(shao)杯(bei),加(jia)(jia)(jia)水(shui)100ml,加(jia)(jia)(jia)熱(re)(re)(re)至(zhi)70℃,加(jia)(jia)(jia)入檸檬酸(suan)(suan)(suan)(suan)(suan)42g,攪(jiao)(jiao)(jiao)排溶(rong)(rong)解(jie)后(hou),加(jia)(jia)(jia)入鴨酸(suan)(suan)(suan)(suan)(suan)鈉23,加(jia)(jia)(jia)熱(re)(re)(re)攪(jiao)(jiao)(jiao)拌(ban)(ban)(ban)館解(jie)后(hou),加(jia)(jia)(jia)入含(han)硫(liu)(liu)(liu)酸(suan)(suan)(suan)(suan)(suan)鎳(nie)的溶(rong)(rong)液(ye)(ye)中(zhong)(zhong),攪(jiao)(jiao)(jiao)拌(ban)(ban)(ban)均勻。另(ling)取在250mL燒(shao)杯(bei)中(zhong)(zhong)加(jia)(jia)(jia)入蒸餾(liu)水(shui)100ml,加(jia)(jia)(jia)熱(re)(re)(re)至(zhi)70℃,加(jia)(jia)(jia)入硼酸(suan)(suan)(suan)(suan)(suan)31g,加(jia)(jia)(jia)熱(re)(re)(re)攪(jiao)(jiao)(jiao)拌(ban)(ban)(ban)溶(rong)(rong)解(jie)后(hou),加(jia)(jia)(jia)入含(han)硫(liu)(liu)(liu)酸(suan)(suan)(suan)(suan)(suan)鎳(nie)的溶(rong)(rong)液(ye)(ye)中(zhong)(zhong),攪(jiao)(jiao)(jiao)拌(ban)(ban)(ban)均勻。另(ling)取在250mL燒(shao)杯(bei)中(zhong)(zhong)加(jia)(jia)(jia)蒸餾(liu)水(shui)50ml,加(jia)(jia)(jia)熱(re)(re)(re)至(zhi)70℃,加(jia)(jia)(jia)入硫(liu)(liu)(liu)酸(suan)(suan)(suan)(suan)(suan)鈉6.5g、硫(liu)(liu)(liu)酸(suan)(suan)(suan)(suan)(suan)鈷2g、硫(liu)(liu)(liu)酸(suan)(suan)(suan)(suan)(suan)錳28、硫(liu)(liu)(liu)酸(suan)(suan)(suan)(suan)(suan)鎂2g和氟化(hua)鈉5g,加(jia)(jia)(jia)熱(re)(re)(re)攪(jiao)(jiao)(jiao)拌(ban)(ban)(ban)溶(rong)(rong)解(jie)后(hou),加(jia)(jia)(jia)人(ren)(ren)含(han)硫(liu)(liu)(liu)酸(suan)(suan)(suan)(suan)(suan)鎳(nie)的溶(rong)(rong)液(ye)(ye)中(zhong)(zhong),攪(jiao)(jiao)(jiao)拌(ban)(ban)(ban)均勻。另(ling)加(jia)(jia)(jia)十(shi)二烷基硫(liu)(liu)(liu)酸(suan)(suan)(suan)(suan)(suan)鈉0.01~0.001g充分攪(jiao)(jiao)(jiao)拌(ban)(ban)(ban)溶(rong)(rong)解(jie)。再加(jia)(jia)(jia)人(ren)(ren)甲(jia)酸(suan)(suan)(suan)(suan)(suan)35mL 和冰醋(cu)酸(suan)(suan)(suan)(suan)(suan)20mL,加(jia)(jia)(jia)熱(re)(re)(re)充分攪(jiao)(jiao)(jiao)拌(ban)(ban)(ban)至(zhi)溶(rong)(rong)液(ye)(ye)透(tou)明(ming)。冷卻至(zhi)室溫(wen),用10%稀硫(liu)(liu)(liu)酸(suan)(suan)(suan)(suan)(suan)或稀氫(qing)氧化(hua)鈉溶(rong)(rong)液(ye)(ye)調節溶(rong)(rong)液(ye)(ye)pH為2.將溶(rong)(rong)液(ye)(ye)倒入1000mL量(liang)(liang)筒或量(liang)(liang)瓶(ping)中(zhong)(zhong),加(jia)(jia)(jia)蒸餾(liu)水(shui)至(zhi)刻度。



5. 鎳-鎢-鈷合金鍍液工藝規范


 鎳-鎢-鈷合金鍍(du)液(ye)性能上比較(jiao)類似于鎳-鎢合金鍍(du)液(ye)。


 耗電(dian)系數:0.21A·h/(d㎡·μm);


 工(gong)作電壓:6~12V(最佳10~12V);


 陰陽(yang)極相對(dui)運動速率:6~12m/min;


 工作溫度:30~50℃.


 循(xun)環使(shi)用過(guo)程可(ke)參照鎳-鎢(wu)合金刷鍍液。