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Electroplating chemical raw materials
Since 1990!
National advisory hotline:
86-0757-85438329

Environment-friendly Coating Plating Serial Technology

747 Nickel-free Balck Tin Alloy Technology

Product Title:747 Nickel-free Balck Tin Alloy Technology

Phone:86-0757-85438329

Detailed

Use and features

1. With excellent corrosion resistance, the palted hardware can bear NASS spray test over 48 hours without sealing by lacquer.
2. High hardness far better than the gun metal color of Nickel-Coblat Alloy; its abrasion resistance is as good as chrome plating layer.
3. The layer is vivid, glittering and beautiful, as the pearls take on deep and remote blue, also, with strong metallic sense.
4. No need lacquer seal protection, short process but high efficiency; simple devices but fast production.
5. Excellent capability of dispersion and covering.
6. The bath is acidic, no contains tin ion which easy to be oxidized, it is stable and easy to maintain.
7. Can be plated on white bronze, but only for rack plating.
 

Operating condition

 

Material

Range

Optimum

747 Main Salt

115-130g/L

120 g/L

747 Conductive Salt

290-305 g/L

300 g/L

747 Stablizer

50-70 m/L

60 m/L

747 Wetting Agent

6-8 m/L

6 m/L

747 Additive A

30-60 m/L

45 m/L

747 Additive B

15-30 m/L

25 m/L

PH

2.5-3.0

2.6

Temperature

30-38

32

Proportion

1.20-1.2132℃)1.2032℃)

Cathode Current density

8-20A/dm2   4.25 A/dm2

Anode Current Density

Anode Material

Filtration

Stirring

 

Heating

 

3.25-5.5 A/dm2    4.25 A/dm2

 

High purity graphite

Constant filtration

Moderate machinery stirring or air stirring

Pure Titanium Heating tube

 

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