毛片在线观看AV_久久精品国产亚洲αV麻豆网站_在厨房被c到高潮_亚洲国产男人的天堂你懂的_国产极品粉嫩馒头一线天_最近更新中文字幕手机版_午夜视频等优质视频资源_亚州性夜夜射在线观看_高清无码人妻精品内射视频_2021中文字幕无码免费

Pretreatment agent for magnesium alloy chemical  copper plating，Chemical pretreatment agent,Metal pretreatment solution,

Pretreatment agent for magnesium alloy chemical  copper plating，Chemical pretreatment agent,Metal pretreatment solution

I.Product code: Q/YS.829 (yishun brand)

II. Product scope and advantages:

This product is that maketh suitable chemical industry independent research and development of new products, can effectively solve the problem of magnesium alloy electroless plating of all, after pretreatment of magnesium alloy, can enter the next step of chemical copper plating or chemical nickel plating processing, coating binding force strong, anti-corrosion matrix, get the density of chemical copper plating layer or chemical nickel plating layer, the operation is simple, beyond the traditional processing methods.

III. Product indicators:

1. Transparent colorless (or light yellow) products, no odor

2. the PH ﹤ 7.0

3. the proportion of st13 of 1.0

IV. Operation method:

1. The product can be used after you add water twice.

2. As required, the demineralized magnesium alloy will be subjected to chemical polishing or matte treatment. If a bright coating is needed, chemical polishing will be selected.

3. Immerse magnesium alloy into magnesium alloy copper-nickel plating for pretreatment, remove the workpiece after 3-5 minutes and wash with water.

4. Dip magnesium alloy into electroless copper plating (Q/YS.118) or magnesium alloy electroless nickel plating (Q/YS.825) for copper or nickel plating.

V. matters needing attention:

(1) It is necessary to replenish the original liquid in time to restore the effect.

(2) Please use plastic containers to hold the product.

Other processing：Chemical Plating Liquid Train、Environmental degreer and rust remover、Stainless Steel Polishing Agentas、Brass Green Chemical polishing Agent、Electroless plating of real gold on copper surface、Strong oil stain removal agent