刷镀后处理：刷镀银层着色液

1、刷镀后处理：刷镀银层着色液    有些工艺品或雕塑像刷镀银后需要着色处理，主要方法是在其表面生成一层硫化物，其工艺规范见表1。表1银刷镀层着色溶液及工艺规范                颜色            序号     

2、       溶液配方            工艺条件                             

3、0;   成分            含量/（g/L）            温度/            电流密度/（A/dm2）      

4、60;     时间/min            备注                    黑色           

5、;              硫化钾碱    氯化铵            15    40              

6、                                     硫化钾碱可用1份硫磺与2份钾碱共熔l020min制得        

7、0;     （表1续表）                颜色            序号            溶液配方   &

8、#160;        工艺条件                                 成分       &

9、#160;    含量/（g/L）            温度/            电流密度/（A/dm2）            时间/min    &#

10、160;       备注                                 l         

11、;   硫化钾    碳酸铵            5    10            80             

12、            至所需的色调            浸渍时要摇动，必要时取出观察                    2  

13、60;         硫化钾    氯化铵            2    6            6080      

14、60;                       至所需的色调                         

15、60;       蓝黑色            3            硫化钾            1.5     

16、;       80                         至所需的色调                

17、60;                4            多硫化铵    氯化铵            3    

18、5            7080                              210      

19、0;                               5            硫化钠    亚硫酸钠 &#

20、160;  丙酮                 2530    3540    35（mL/L）                 室温  

21、                    12                      510       &

22、#160;         阳极：不锈钢。黑化后除油，用于波导管镀银后处理                    淡灰色；暗灰色               &

23、#160; 1            亚砷酸    三氯化锑    铁粉    盐酸d1.19）                 60g   

24、0;39g    150g    1000    mL                                   

25、60;               配制时依次加入盐酸，亚砷酸，三氯化锑，铁粉。加热熔解，冷却    后使用，若放置几天，效果更好                    2   &

26、#160;        硝酸铜    Cu（NO3）2·3H20    氯化汞    硫酸锌    （ZnS04·7H20）            20    30 &

27、#160;  30                 室温                         至所需的色调   

28、60;                             3            硝酸铜    Cu（NO3）2·3H20 

29、;   氯化铜    硫酸锌    （ZnS04·7H2O）    氯化汞    氯酸钾            10    10    30    15

30、0;   25            室温                         至所需的色调        

31、                   （表1续表）                颜色            序号  &

32、#160;         溶液配方            工艺条件            备注              

33、60;     成分            含量/（g/L）            温度    /            电流密度 

34、0;  /（A/dm2）            时间    /min                    绿灰；    绿色    

35、60;                    盐酸（d1.19）    碘            300    100       

36、;     室温                         至所需的色调                  

37、60;              绿蓝色            1            醋酸铜    Cu（CH3COO）·2H2O   

38、 硫酸铜    （CuS04·5H2O）    水            38    28    45L            90100   

39、60;                     至所需的色调                           

40、60;     2            醋酸铜    Cu（CH3COO）·2H2O    硫酸铜    （CuS04·5H20）    醋酸（36%）    水    

41、;        1.58    1.38    12mL    45L            90100              

42、60;          至所需的色调                                 黄褐色     

43、                    硫化钡            5            室温     

44、                    至所需的色调                                 古代银            l