理论片在线观看视频,插槽8x插槽跳转页面,国产对白叫床清晰在线播放,久久丫精品国产,高清国产在线拍揄自揄视频,精品国精品国产自在久国产不卡,哺乳期挤奶视频长达40分,精品久久久久中文字幕一区,欧美做真爱免费,在线成人自拍视频,国产chinasex

Detail:

Due to the non-toxic tin plating, a large number of objects used in contact with food and beverages, the largest use is to manufacture tin cans, 

other such as kitchen utensils, food knife and fork, oven

1) Acid tin plating
advantage
1. tin is reduced by the bivalent, electricity consumption;
2. plating bath high conductivity, low bath voltage, high current efficiency;
3. operation for temperature close to room temperature, free heating equipment;

4. the use of appropriate additives can be gloss coating;
5. less damage to the substrate

2) alkaline tin plating bath
advantage
1. good uniformity;
2. a wide range of operations;
3. can tolerate more impurities;
4. simple formula;
5. no additives can be luster;

6. pretreatment requirements are not high;
7. can be used insoluble anode

Specifications of Tin Plated Copper Strip

1.Grade

    1) Brass: C2600 C2680 C2801

    2) Bronze:C5102 C5191 C5212 C5210

    3) Copper:C1020 C1100 C1201 C1220

    4) Cu-Fe Lead Frame:C19210 C19400

2.Base Materials: Brass Bronze Copper Cu-Fe Lead Frame

3.Base material thickness: 0.1mm-0.8mm

4.Width: Max. 300mm

5.Coil Weight: Max.2400kg; coil:8kg/mm

6.Pre-plating: Cu:0.4μm-0.6μm

7.Reflow Tin Plating : Sn 0.8μm-2.0μm

8.Standard:JIS H3100 Standard, Meets ROHS requierments 

9.Chemical Composition:

Features of Tin Plated Copper Strip

1) Eliminating detrimental "tin whisker"

2) Improving conductivity

3) Corrosion-resistance

4) Insertion force

5) Malleability fo electrical connectors are additional benefits