刷鍍后處理：刷鍍鎘層著色液

1、刷鍍后處理：刷鍍鎘層著色液     鎘是灰色有光澤的軟質(zhì)金屬。鎘主要用在化工、鑲牙合金、原子能工業(yè)等。鎘的鉻酸鹽著色法，習(xí)慣上也稱做鎘鈍化。其著色工藝規(guī)范見表1。表1鎘著色工藝規(guī)范                顏色            序號(hào)  &

2、#160;         溶液配方            工藝條件                           

3、;      成分名稱            含量/（g/L）            溫度/            時(shí)間     

4、       備注                    褐色            1          &

5、#160; 重鉻酸鉀    硝酸（d1.42）            6.2    31            6070            210

6、                                 2            高錳酸鉀    硝

7、酸鎘    硫酸亞鐵（FeS04·7H20）            160    60250    510            5070       

8、0;         510            以硝酸保持酸性                           

9、           1            氯酸鉀    硫酸銅（CuS04·5H20）            19    124  &

10、#160;         6090            23            也可加入氯化鈉l9g/L             &

11、#160;           黑色            2            氯酸鉀    氯化銅        

12、0;   6    7            6080                 23            &#

13、160;                         3            氯酸鉀    硝酸銅       &

14、#160;    60    3540            6080                 數(shù)分鐘          

15、                            4            硝酸銅    高錳酸鉀    

16、0;       30    25            6080                 數(shù)分鐘        

17、;                                   5            醋酸鉛    Pb（CH3COO）2·3H20    硫代硫酸鈉（Na2S203·5H20）            1.5    72            6090