中文字幕亚洲欧美日本懂色,亚洲视频一区在线色婷婷,天天干天天干天天日天天操,麻豆国产精品777777在线,欧美一区二区三区另,中文字幕丰满人妻日本了,熟妇人妻av中文字幕在线,最新福利免费视频一区二区,伊人少妇精品在线观看视频

SZSE:002741
Tin plating
Information
Characteristic:

Alkyl sulfonic acid system adopted, environment friendly, with stable system; 
Simple composition, easy operation, easy for site production and management; 
Special additive used, contributing to dense and uniform crystals of the coating, with good welding performance, wetting balances T2/3Fmax<0.5S; 
Uniform coating, small thickness difference between coatings in areas with high and low current density.

Application:

3461D is a pure tin electroplating potion exclusively designed in accordance with the barrel plating characteristics of such electronic products as passive components. It can ensure uniform and dense tin coating while ensuring the electroplating efficiency, thus ensuring excellent weldability of the plating workpiece. It is applicable to barrel tin plating of chip capacitors, resistors, electric induction products and other electronic.

Advantage introduction:

3461D1: Commonly known as make-up. It is used for complexing tin ion to control deposition rate of electroplating and make the plating crystal fine and tight;
3461D2: Supplement. It is used to improve plating current distribution, produce secondary current distribution to make plating uniform, thickness difference between high and low current zone smaller as well as to increase leveling of plating;
Tin Concentrate: to provide the tin ion needed for electroplating deposition.

Technical indicators:

Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1