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Protection of a metal surface against corrosion is always relevant, regardless of production volumes. It is also necessary in the private sector. Such protection greatly extends the life of the products and makes them reliable to use. One of the most common options is galvanizing metal, in which a chemical composition containing zinc is applied to the surface.This is especially true in wet conditions. If you use galvanized metal, the most reliable anti-corrosion protection is provided. This is due to the fact that as a result of this process, a galvanic couple appears on the surface along with the base steel. In it, a large degree of electronegative charge is characteristic of zinc. In this pair, the main effect of the aggressive environment falls on the surface of the zinc coating. In this case, a chemical reaction with the base metal is practically excluded. As a result, such protection is provided as long as a sufficient layer of galvanizing remains.
Galvanizing of steel products provides not only good barrier, but also electrochemical protection.
In our production, we can galvanize products with a maximum length of 80 mm and a minimum diameter of 2.5 mm.
The minimum batch of products is from 30 kg
BLACK ZINC COATING PROCESS.
The black zinc plating process involves the electroplating of zinc onto metal by immersing cleaned steel parts in a galvanizing bath and applying an electric current to it. The black zinc plating acts as a barrier to protect the metal from many damages such as corrosion and also enhances the product's appearance.
During the finishing process, we apply a zinc layer of 5-6 microns, and after zinc coating, a trivalent black passivating coating is applied to the surface of the product to increase durability. The quality department tests our cleaners, acids, plating tanks, passivators and chromators on an ongoing basis to ensure that they all meet ideal operating parameters.
INDUSTRIES IN WHICH HARDWARE PRODUCTS ARE USED,
COATED WITH BLACK ZINC
- automotive industry
- production of electrical equipment
- furniture industry
While there are many applications for hardware in black zinc, the Kalibr plant actively supplies products in black zinc to manufacturers of furniture fittings and electrical equipment.
Black zinc is a galvanized coating that is used to protect metal from corrosion, as well as to improve its aesthetic properties. Black zinc is obtained by electrolysis by immersing metal parts in a bath of zinc salt solution containing special additives. In this process, parts are coated with a thin layer of zinc, giving them a black color. The size and shape of the parts do not matter, as the coating can be applied to any surface, be it flat sheets, pipes or complex structures.
Electroplating with black zinc has a number of advantages over other metal protection methods. First, it is highly resistant to corrosion and abrasion. The coating protects the metal from oxidation, stains and scratches, extending its service life. Secondly, the black zinc coating has an aesthetic appearance and goes well with any design. Such a coating is used in the manufacture of furniture, equipment, automotive parts, weapons, as well as to create spectacular interior elements.
In addition, black zinc plating has a high degree of adhesion and resistance to temperature changes. This allows the use of such a coating for metal parts exposed to high humidity, exposure to chemicals, mechanical stress and other aggressive factors.
The galvanizing process takes place in several stages. The first step is to prepare the metal surface for processing. Usually, mechanical cleaning, degreasing and degreasing are used for this. These operations allow you to remove all contaminants and protective coatings from the metal surface, such as grease stains, rust, paint, etc.
After that, zinc is electrolytically deposited on the metal surface. This process is carried out in a plating bath containing a solution containing the appropriate zinc salts and other additives. Using an electrolytic process, a thin layer of zinc is deposited on the metal surface. In this case, the zinc layer is very thin, not exceeding a few micrometers.
After that, the metal surface is painted. Painting can be carried out using special paints that create an additional protective layer on the metal surface. At the same time, paints can be of various colors and shades, which allows you to choose the best option for a specific task.
Benefits of black zinc coating:
Corrosion resistance. The black zinc coating is highly resistant to aggressive media such as water, salt, etc. This allows the coating to be used in many industries where high corrosion protection is required.
Abrasion resistance. The black zinc coating has a high degree of wear resistance. It is able to withstand heavy loads.
In addition, black zinc plating creates a more even and smooth finish than other plating methods. This is especially important for mechanical parts such as bolts, nuts, washers and other fasteners that can be subject to wear and corrosion during use.
In addition, black zinc coating can be used to create decorative items such as furniture fittings, lamps, accessories and other interior items. Black zinc provides an elegant and modern look that can be used in a wide range of design projects.
Technological process of black zinc plating
The technology of galvanizing with black zinc has its own characteristics. Unlike conventional zinc plating, which uses bright gray zinc, black zinc is created by adding special additives to a bath of zinc solution.
Before starting the process, metal products must be thoroughly cleaned of contaminants and treated with a special solution that removes any residue of grease, oil or other contaminants. The parts are then immersed in a bath of zinc solution, where the galvanizing process begins.
Black zinc galvanizing uses special additives such as activators, catalysts and stabilizers. These additives help to achieve the desired color and texture of the coating, as well as increase the strength and resistance to corrosion.
After galvanizing, the products undergo a special treatment that improves the quality of the coating. This usually involves applying a protective varnish that protects the metal from moisture, acids and other harmful substances.
In Ukraine, the TDV Kalibr company specializes in providing electroplating services, including black zinc coating. We use only high-quality materials and modern equipment to provide a high-quality and durable coating.
If you would like more information about our black zinc plating services or would like to order a galvanized coating for your products, please contact us. Our experienced specialists will help you choose the most suitable coating and provide you with detailed advice on all issues related to electroplating.
As a result, black zinc coating is a reliable and durable way to protect metal products from corrosion and damage. Due to its unique properties, it is widely used in various industries. If you want to provide your products with reliable protection, contact the professionals of X Company and get a high-quality electroplating.