Metal deposition processes

Copper and copper alloy processes

Europa 401 (cyanidic)

The high-performance copper bath Europa 401 is a cyanidic copper bath specially developed for the copper-plating of zinc die-casting, but it can also be used with excellent results for the copper-plating of iron and steel. The potassium-based (or alternatively sodium-based) electrolyte produces high-gloss and pore-free copper coatings. In connection with an excellent depth scattering and metal distribution, a uniformly dense and thus corrosion-protecting precipitate is formed.

Maroon 208

The bright copper bath Maroon 208 is a sulfuric acid electrolyte for the deposition of highly leveling, bright copper layers in an extremely wide current density range. Even with relatively short exposure times, mirror-like precipitates are achieved with high leveling and excellent depth of shine. Surface defects in the base material can be largely compensated for by the leveling ability of the electrolyte. Due to the mechanical properties of the layers, in particular the ductility, the process is also suitable for plastic electroplating.

Brass electrolyte Victor (cyanide)

The bright brass process Victor is suitable for surface finishing of steel, iron, copper, zinc and other metals and metal alloys. Smooth and shiny coatings are achieved. The gloss effect of the coating depends on the nature of the surface of the base material. In contrast to commercially available electrolyte types, this process is operated with a real brightener system and without ammonium compounds.

Tin and tin alloys

Dekatinn 19

The sulfuric acid bright tin bath Dekatinn 19 delivers high-gloss tin layers with an excellent opacity and metal distribution in a wide current density range. These high-gloss tin layers are non-slip and corrosion-resistant and are ideally suited for soldering preservation. Areas of application are the tinning of steel, nickel and copper surfaces. In principle, brass surfaces can also be tinned with this process to a limited extent. Due to the high level of protection against corrosion of the tin coatings, the process is also suitable for tin-plating household items that come into contact with food. The bright tin bath Dekatinn 19 can be used in both drum and rack systems.

Tinnilloy 2.0

Electrically deposited tin-nickel layers have an extremely high level of corrosion resistance, which almost comes close to the corrosion resistance of a noble metal. The precipitate (similar to the electroless nickel layers containing high levels of phosphorus) is resistant to concentrated nitric acid for a period of time. Tin-nickel surfaces are therefore preferably used in the contact and electronics industry, but also in the decorative sector. The layer composition of the Tinnilloy 2.0 layers remains constant over a remarkably wide current density range and has a tin content of 65% and a nickel content of 35%. The precipitates are slightly colored, shiny and resemble the layers of trivalent chrome baths. The process shows a very good spread and works in a wide analytical tolerance range, is therefore particularly reliable and simple; drum and rack operation are both possible. The electrolyte does not contain any amine-containing complexing agents!

Tinnilloy 2.0 can be applied directly to most metals, especially copper, brass and bronze. Tin, nickel (electroplated nickel), steel and cast iron are also possible.

Nickel

Semi-shine nickelbath Janus 4

The Janus 4 nickel bath is suitable for the deposition of semi-shiny to shiny, leveled nickel deposits on iron and steel, copper and its alloys and, after appropriate pretreatment, also on die-cast zinc. The deposited nickel coatings are ductile, largely stress-free and have an extremely low sulfur content. The semi-glossing system guarantees that the nickel layer has a sufficiently large potential difference compared to the subsequent bright nickel layer in order to achieve the highest level of corrosion resistance.

High-performance bright nickel process Premium

The precipitate from this electrolyte is characterized by a high level of brilliance and very good leveling properties. For these reasons, this nickel bath is especially designed to provide ground base material with an appropriate finish. The strong leveling effect can already be seen in relatively thin layers, so that even workpieces with a complex shape are given a uniform shine. The deposited deposits are ductile and allow the galvanized parts to deform. This gloss additive system does not contain any substances that cause irreversible hardness. For the same reason, there will be no increase in the consumption of brighteners. This process is not aware of unnecessary and regular rejections of expensive nickel electrolytes. The electrolyte is only suitable for rack electroplating

High-performance barrel bright nickel process Rotoglanz 50-93

The finish from this electrolyte is characterized by a high level of brilliance and very good leveling properties. Since the strong leveling effect can already be seen in relatively thin layers, the electrolyte is excellently suited for barrel plating. The excellent depth scattering ensures that even complex-shaped, pourable mass-produced articles receive a uniform shine. The nickel-layers are ductile and allow the galvanized parts to deform. This brightener system does not contain any substances that cause irreversible hardness. For this reason there will be no increase in gloss consumption.

Anthracite-nickel bath Arranha (cyanidic)

The grandfather electrolyte of the color type widely marketed as "Aranja"! The Arranha anthracite-nickel bath is a special process for the deposition of decorative, dark-anthracite-colored nickel layers. These decorative layers are applied to surfaces made of copper, copper alloys and bright nickel. The achievable layer thickness is very small, so abrasion and corrosion resistance are usually not sufficient without additional painting with a clear coat. The process is suitable for processing rack and barrel goods. The electrolyte, which is supplied ready-to-use, works in the weakly alkaline range and contains highly complex-bound cyanide in low concentrations.

We also have matt nickel processes and nickel sulfamate in our repertoire. We would be happy to advise you on these procedures.

Electroless nickel processes

Zincate stain Goyal

In the new Goyal process for zincate treatment of aluminum components, these go through up to two treatment stages. In the first stage, the zincate stain forms a firmly adhering, dense and very even zinc film with layer weights between approx. 5 and 30 mg / dm² on most aluminum alloys. The zincate film is specially designed for the use of the Goyal process for electroless nickel plating of aluminum with maximum adhesion of the nickel layers. A single application of the Goyal zincate stain is usually sufficient. In special cases, however, multiple zincate coatings can also be applied or necessary. In the optional second stage, Goyal conditioner, the zinc layer previously produced in the Goyal zincate pickle is conditioned in such a way that the chemical nickel bath is not contaminated with zinc when the parts are chemically nickel-plated. Goyal zincate stain is cyanide-free; the Goyal conditioner does not contain any nitrates or complexing agents.

Enigma 9

The chemical nickel bath Enigma 9 uses chemical reduction to deposit very homogeneous nickel-phosphorus layers with good corrosion resistance and very good gloss. The phosphorus content of the nickel-phosphorus layers is 8-11% phosphorus, depending on the working conditions. The speed of the bath is 12 to 20 µ / h. This new Enigma process is characterized by high stability, a very good pH buffer capacity and relatively high deviation tolerances. It is free from lead, cadmium and ammonium and complies with the current requirements of the EU end-of-life vehicle regulation, the ROHS directive and the WEEE (Waste Electrical and Electronic Equipment).

Enigma 12

The chemical nickel bath Enigma 12 is the high-phos counterpart to Enigma 9. Current standards and regulations can also be met by this process. Novelty: With a special additive, this electrolyte can be converted to the Mid-Phos version Enigma 9. In this way, this electrolyte can continue to operate for a few MTOs in an environmentally friendly way after the best high-phos phase has been worked out.

Chromium process, VI-valued

Gloss-chrome Dekachrom 200

The bright chrome bath Dekachrom 200 is a modern high-performance electrolyte that allows high-gloss chrome deposits with a low level of chromic acid to be deposited with excellent shine depth.

Hard-chrome Cygnus 27

The hard chrome bath Cygnus 27 belongs to the type of fluoride-free, fast-depositing hard chrome electrolytes. The electrolyte Cygnus 27 is suitable for both lead anodes and platinum-plated titanium anodes. The absence of fluoride minimizes the etching attack on the base material. The process is characterized by good metal distribution, optimal hiding power and high deposition speed with easy handling and maximum process reliability. The deposited micro-cracked hard chrome layers are very wear-resistant and have a hardness of at least 1,000 HV 0.1.

Black-chrome Mimas

With the Mimas black chrome bath, both decorative and technical black chrome layers can be deposited. For decorative purposes, the parts are nickel-plated beforehand. With technical black chrome plating (e.g. in solar technology), steel, brass, copper or satin-matt nickel-plated parts can also be used as a substrate. With the latter in particular, absorption values of up to 0.95 can be achieved with very low thermal emission values at temperatures of up to 400 oC. The particular advantage lies in the use of low current densities with very good metal depth scattering. The layers obtained are initially amorphous when dry. After a suitable post-immersion, the layers become deep black, high-gloss and abrasion-resistant.

Zinc processes

Cyanide bright zinc process ACZ 54 HT

The bright zinc bath ACZ 54 HT is an alkaline, low to medium cyanide bath for the separation of high-gloss zinc deposits. The zinc deposits are ductile, uniform and are particularly characterized by excellent depth scattering and metal distribution. Because of its effectiveness in a wide range of current densities, the bath is suitable for both rack and drum goods. The zinc layers deposited with this bath can be easily passivated or chromated in any color.

Alkaline, cyan-free, bright zinc bath CF 912

The bright zinc bath CF 912 is an alkaline, cyanide-free process that creates stress-free, ductile zinc layers. The additional system is well suited for very tight hanging of the frames. Due to its new concept, the alkaline-cyan-free bright zinc process CF 912 has a good gloss formation, an excellent metal distribution and has an extremely wide range in which the zinc content can vary. Significantly higher current densities can be used than with previous systems. This results in a universal applicability for rack and barrel electroplating. The additives do not contain any complexing agents.

Acid bright zinc bath Quasar 3000

The bright zinc bath Quasar 3000 is a weakly acidic, ammonium and alcohol-free electrolyte. Due to the design of the additives, the bath can be operated with very low zinc contents. This results in a previously barely achievable, even and excellent metal distribution with high conductive salt contents. The process is also suitable for galvanizing cast parts (malleable cast iron). It is equally suitable for drum and rack operation The bright zinc bath Quasar 3000 is very easy to control and maintain; As a rule, only one brightener is required for ongoing operation. The zinc layers produced from this electrolyte can be treated with all DMK zinc aftertreatments.

We also have zinc alloy processes, alkaline and acidic, frame and drum, along with the associated passivations in our repertoire. We would be happy to advise you on these procedures.

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