Yanling town, Danyang city, Jiangsu, China. 212341 | oliverhang@chinamengde.com |
Product Details:
Payment & Shipping Terms:
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Type: | Metal Surface Treatment Agent | Surface Treatment: | Bright Tin Plating |
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Other Names: | Metal Surface Treatment Chemicals; Ready To Use; Electronics Chemicals | Application: | Rack Plating Thick Tin; Barrel Plating Electrical Parts |
High Light: | bright tin plating process,tin lead plating process |
MDT-LS Full Bright Acid Tin Plating Process
(Low Foam, No Formaldehyde)
Applications and advantages
We developed brand-new full bright acid tin plating process with two agents which are Make up solution agent and Supplementary agent. These additives has advantages of low foams and the plated parts are easy to be cleaned up. They can make the deposit have good discoloration-resistance ability and solderability. This process could be widely used in electrical parts and trimmings. It is the optimal additive in racking plating thick tin, barrel plating electrical parts, and high-current strike plating thin and pure tin.
Bath Composition and Working Conditions
Bath composition and working conditions |
Type of plating processes |
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Rack plating |
Barrel plating |
High-speed plating |
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Stannous sulfate (AR) |
30-50g/L |
20-30g/L |
80-100g/L |
Sulphuric acid (1.84g/ml) |
80-100ml/L |
80-100ml/L |
60-100ml/L |
MDT-LS Make up solution agent |
30-40ml/L |
30-40ml/L |
30-40ml/L |
MDT-LS Supplementary agent |
2-4ml/L |
2-4ml/L |
2-5ml/L |
Temperature(℃) |
8-25 |
2-8 |
5-15 |
Cathode current density(A/dm2) |
1-2 |
0.5-1 |
10-30 |
Anode area: Cathode area |
2:1 |
2:1 |
10:1 |
Cooling fixture |
Should be equipped with cooling fixture |
Must be equipped with cooling fixture |
Must be equipped with cooling fixture |
Filter fixture |
Should be equipped with filtration fixture |
Must be equipped with filtration fixture |
Must be equipped with filtration fixture |
MDT-LS consumption reference value |
50-100ml/KAH |
50-100ml/KAH |
50-100ml/KAH |
Voltage (V) |
1.5-2.5 |
3.5-5.5 |
3.5-4.5 |
Preparation of bath solution
Please note: The Make up solution agent cannot be added into baths above 30℃.
Process flow
Removing oil→Sulfuric acid pickling→Washing twice→Tin plating (reference: when the current density is 1-2 A/dm2, rack plating for 10-15 minutes; when the current density is 1A/dm2, barrel plating for 20 minutes)→Wash several times→Dry the parts→Discoloration-resistant treatment.
The replenishment of bath solution and the maintenance
Trisodium phosphate: 30-50g/L
Tin off-color Prevent Agent: 20-50ml/L (make up in 50℃ purity water)
Temperature: 50-60℃
Processing time:30-60 seconds
Packing and Storage
Packed in 25kg plastic drums, stored in cool and dry place.
Product Display
Declaration:
The recommendations among the content of this instruction is based on the trials and tests, as well as the related documents which are credible to our company. As the operating practices and equipment differ from each other, we will not hold responsible for any negative outcomes. The content of this instruction could not serve as evidence of copyright infringement.
Contact Person: Mr. oliverhang
Tel: +86 18021229333
Fax: 86-0511-86867404
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