Hard chrome electroplating DURALLOY® – electroplating at low process temperatures
DURALLOY® is an extremely hard, crack-free, precise, very thin and ultrapure type of chromium coating for optimized friction processes. Thanks to the low process temperature, there are no structural changes in the base material. This significant advantage ensures dimensional stability and rigidity.
DURALLOY® coatings protect against pressure loads, poor lubrication, fretting corrosion and vibration-induced corrosion. The coatings are able to withstand high temperatures as well as corrosion and wear. What is more, they ensure low friction and dry lubrication. DURALLOY® coatings are particularly suitable for linear guides or ball bearings. However, they are equally suitable for components exposed to aggressive gases (in mills, smelting works or defense engineering).
Electroplating with copper - the basis for nickel
Copper serves as a base for further electroplated coatings, such as tin or nickel electroplating. The procedure starts with the deposition of bright, microcrystalline and ductile copper coatings in an electrolytic process. The advantage of a finished copper-nickel coating system: It fulfills numerous requirements when it comes to corrosion protection accompanied by attractive looks. Copper is characterized by good covering properties, high ductility and excellent electrical and thermal conductivity. When applied as a base coating, it counteracts strains between the component and the coating system. What is more, copper coatings are also suitable for subsequent passivation.
Nickel sulfamate - electroplating technology for the repair of components
Nickel sulfamate is a complex chemical compound used in electrolyte solutions for the deposition of relatively thick and pure nickel layers. This surface treatment technology is particularly suitable for the repair of damaged and defective components. Nickel sulfamate coatings are very ductile and offer good protection against wear and corrosion. Beyond that, the coatings are ideal for machining.
Zinc electroplating - inexpensive and effective corrosion protection
Zinc electroplating is the most inexpensive, most effective and most frequently used method for creating reliable corrosion protection. Moreover, this type of surface finish is characterized by good temperature resistance and attractive optics. What is more, our zinc coatings are free from Cr(VI).
Aalberts surface treatment also offers follow-up coating options for zinc-plated finishes:
- Blue, black and transparent passivation coatings or thick-film passivation
- Topcoats (sealing layers)
- Thermal treatments (tempering) for dehydrogenation can be implemented upon completion of the coating process
Our company provides all imaginable industrial sectors with zinc electroplating services. The automotive industry, the sanitary engineering industry, the construction and fittings industries and the metalworking industry are just a few examples.
Zinc-nickel electroplating services for the automotive industry
Electroplated zinc-nickel alloys fulfill the automotive industry's very demanding requirements with regard to engine compartment, chassis and underbody components. We perform this process using our cutting-edge, fully automated plants. Following zinc-nickel electroplating, it is possible to add a Cr(VI)-free passivation coating for protecting the surface. Sealing layers and topcoats applied afterwards will enhance the materials' corrosion resistance even further.
Zinc-nickel coatings offer excellent and long-term corrosion protection, even when subjected to strong thermal loads. The coating prevents aluminum-related contact corrosion in steel components. Apart from that, zinc-nickel coatings are very ductile: Coated products can be subjected to heavy machining operations without having to worry about surface flaking and cracks.
Optimisation of frictional processes by means of specially structured metal surfaces
Partial finishing of metal surfaces
Electroless Nickel plating
Functional finishing of metals by means of electroless nickel plating
Small structures - great effect