Taiwan Metiz Alliance
Surface treatment chemicals. Zinc plating, passivation, chrome plating, copper plating, tin, nickel, black nickel, alloy plating, cooper alloy plating, plastic plating chemicals, waste water treatment chemicals, plating additives. Taiwan equipment on Global market.
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ALLOY PLATING CHEMICALS

 

 

Alloys electrodeposition is one of the effective methods to improve the functional properties of electroplating. When co-deposition of two, three or more metals in the form of their alloys can produce coatings with high anticorrosive and decorative properties, with higher hardness, wear resistance, thermal stability and other parameters, compared with standard metal coating.

At present there are dozens of alloys electrodeposition processes based on different metals. Two of the promising alloys are tin-zinc and tin-copper alloys as a replacement of electroplating alloys based on heavy metals (lead and cadmium), as for the corrosion-protective properties they are as good as the latter.

 

Chemical agent for white tin-copper alloy plating (white bronze) WCS-300 Series

 

Chemical composition:

Potash salt

Sodium salt

Specification: white copper-tin alloy plating technology provides silver light layer electroplating. Galvanic coating is soft and has good ability to pour the surface, even more toughness and a good antiseptic resistance. This technology can directly electroplate zinc, copper or copper alloy.This technology is the latest technology to protect the environment. In its additives there is no nickel. Reference properties are good. Galvanized coatings passed the examination of the relevant regulations of the European Union. White bronze coatings are used mainly to protect against corrosion of steel products for decorative purposes, instead of nickel, as well as for the replacement of silver in the galvanic coating of some contact types.

Potassium hydroxide 7,5 г/ л 6 г / л
Potassium cyanide 43 г / л 32 г / л
Copper cyanide 9 г / л 9 г / л
Tin salt 23 г / л 20 г / л
Zinc oxide 1,0 г / л 1,0 г / л

WCS-300 active additive: 50 ml / l Tin plating for corrosion protection
WCS-brightening additive 301: 2 ml / l
WCS-302 complexing additive 50 ml / l

The electrodeposition is carried out at temperature of 50-60 ℃ and the level of PH 12.5-13.0

 

Chemical agent for white tin-copper alloy plating (white bronze) WCS-200 Series
(for electrodeposition in galvanic drums)

 

Chemical composition:

Potash salt

Sodium salt

Specification: Plating stable, homogeneous, brightening, like nickel coating. Electrolyte is ideal for electrodeposition in galvanic drums.Tin plating for corrosion protection

Potassium hydroxide 20 г/ л 16 г / л
Potassium cyanide 62 г / л 47 г / л
Copper cyanide 16 г / л 16 г / л
Tin salt 33 г / л 29 г / л
Zinc oxide 0-1,0 г / л 0-1,0 г / л

WCS-200 active additive: 50 ml / l
WCS-brightening additive 201: 2 ml / l
WCS-202 complexing additive 50 ml / l

The electrodeposition is carried out at temperature of 50-60 ℃ and the level of PH 12.5-13.0

 

Chemical agent for tin-brass alloy plating WCS-100

 

Chemical composition:Tin plating for corrosion protection

Sodium hydroxide: 10-15 g / l
Sodium cyanide: 60-80 g / l
Copper cyanide: 30-50 g / l
Sodium stannate: 15-25 g / l
WCS-100 active additive: 50 ml / l
WCS-brightening additive 101: 2 ml / l
WCS-102 complexing additive 50 ml / liter

The electrodeposition is carried out at temperature of 50-60 ℃ and the level of PH 10.0-12.0

Specification: smooth, uniform, bright coating, resistant to corrosion, abrasion and color fading.

 

Chemical agent for white tin-copper alloy plating FCS series
(does not contain cyanide, alternative to shining nickel coating)

 

Chemical composition:

Potassium pyrophosphate: 320 g / l
Copper pyrophosphate: 10 g / l
Stannous pyrophosphate: 25 g / l
Additive FCS-A: 100 ml / l
Additive FCS-B: 20 ml / l
Additive FCS-C: 15 ml / l

Electrodeposition is carried out at temperature of 20-30 ℃, current density of 0.2-1.2 A / dm2 and level of PH 10.0-12.0

Specification: chemical component does not contain cyanide and heavy metals is a good alternative to nickel. Coating color is bright, coating is suitable for welding. It is widely used for alloy plating of the components of electronics and plastic parts.

 

Chemical agent for tin-cobalt alloy plating series SCO-2#
(alternative to chrome-plated)

 

Chemical composition:Tin-cobalt plating

Stannous pyrophosphate 20-30 g / l
Cobalt Sulfate 15-20 g / l
Potassium pyrophosphate: 250 g / l
SCO-Additive # 1: 100 ml / l
SCO-Additive # 2: 10 ml / l

Type anode is graphite.

Electrodeposition is carried out at temperature of 30-40 ℃,currnt density 0.2-2 A / dm 2 and level of PH 10.0-12.0

Specification: Technology refers to environmentally-clean regarding the level of toxicity and does not harm the environment. Coating is smooth, uniform appearance is similar to chrome plating, it is ideal for complex-shaped blanks. Tin- cobalt coating is resistant to abrasion and has high corrosion resistance. The electrolyte does not produce toxic odor, is simple and safe to use.

 

Chemical agent for tin- cobalt-zinc alloy plating SCZ # 3 Series
(electrodeposition in galvanic drums alternative to chrome-plated)

 

Chemical composition:Tin-cobalt-zinc plating

Additive chrome: 320 ml / l
Active additive: SCZ-90 # 1 ml / l
Active additive: SCZ-3 # 10 ml / l
Stabilizing additive 60 ml / l

Anode type: stainless steel or hydrocarbon plate.

Electrodeposition is carried out at temperature of 30-50 ℃,current densities of 0.5-1 A / dm2 and level of PH 10.0-11.0

Specification: bright coating with bluish color, resistant to abrasion, color fading.The electrolyte is ideal for electrodeposition in small parts in galvanic drums. The chemical component has good dispersion properties, a good alternative to chrome platings.