CJSC "Zavod Trud" offers galvanic coating services in its own galvanic shop.
The plant has the most modern equipment:
- galvanic lines made in France
- automatic conveyor line for powder coating
- towing installations for dry and wet polishing of products
- chamber electric furnaces for heat treatment
Why should you order galvanic coating services from Trud Plant CJSC:
- Orders are fulfilled by highly qualified employees with more than 10 years of experience in the plant’s galvanic shop.
- All coated products undergo multi-stage quality control control.
- All technical processes are regulated according to the quality management system and confirmed by the GOST ISO 9001-2011 (ISO 9001:2008) certificate.
- Huge production capacity is a guarantee of fast and high-quality execution of your order.
- CJSC "Zavod Trud" has been operating for more than 120 years, since 1893 it has been a stable developing enterprise, ready to become a reliable partner for your organization.
Galvanizing with rainbow chromate
Protection of steel from corrosion under various operating conditions. Designation: Ts [thickness] hr. Applicable to all types of steel, cast iron, TsAM. Microhardness: 500-1200 MPa. Specific resistance (18°C): 5.75*10 Ohm*m. Operating temperature: up to +300°C.
Advantages of coverage:
- Protects steel from corrosion in both light and severe operating conditions, even in the presence of scratches or chips of the coating (anodic protection);
- Restores protective properties over time in case of minor mechanical damage (the “self-healing” property of the chromate film);
- Ensures easy screwing of threaded parts;
- Average ductility, in some cases withstands bending, flaring, etc.
Disadvantages of coverage:
- Low abrasion resistance of chromate film;
- protective properties decrease at temperatures above +70°C;
- Increased fragility at temperatures above +250° and below -70°C;
- Low chemical resistance to the effects of products released during the aging of organic materials and in salt environments.
Galvanizing services
Galvanic galvanizing is the application of zinc to iron using an electrochemical process.
The treated surface becomes able to resist corrosive processes. Possible types of chromatization:
- colorless chromate
- rainbow chroming
- black chromate
- olive chromate
The thickness of the coating depends on the operating conditions of the products:
- 6 microns - light operating conditions.
- 12–15 µm - average operating conditions.
- 30 microns - severe operating conditions.
The thickness of the protective layer can be increased to 500 micrometers.
Advantages of galvanic galvanizing:
- Improved performance
- Low cost
- Optimal level of metal protection
- Uniform coverage (no drops, smudges)
- The application of zinc coating to a product does not depend on the structural complexity of the product.
- Decorative coatings (smoothness and shine), parts do not need additional processing.
| Individual approach | Speed | Quality |
| We produce any parts according to existing samples or according to your drawings and sketches | Our production facilities allow us to fulfill orders of any volume in the shortest possible time | Constant quality control at all stages of production. The plant is certified according to the ISO quality system |
Galvanizing with colorless chromium plating
Protection of steel from corrosion in light conditions, decorative finishing. Designation: C [thickness] chrome.btsv. Applicable to all types of steel, cast iron, TsAM. Microhardness: from 500 to 1200 MPa. Specific resistance (18°C): 5.75*10 Ohm*m. Operating temperature: up to +300°C.
Advantages of coverage:
- Improves the appearance of parts. Has a uniform silver color;
- Protects steel from corrosion even if the coating is scratched or chipped (anodic protection);
- Ensures easy screwing of threaded parts;
- Average ductility, in some cases withstands bending, flaring, etc.;
- Meets European environmental requirements (does not contain hexavalent chromium).
Disadvantages of coverage:
- Low abrasion resistance of chromite film;
- Chromite film does not have the property of “self-healing”;
- Increased fragility at temperatures above +250° and below -70°C;
- Low chemical resistance to the effects of products released during the aging of organic materials and in a saline environment.
Galvanizing with olive chromate
Excellent protection of steel against corrosion under harsh operating conditions. Designation: C [thickness] khaki. Applicable to all types of steel, cast iron, TsAM. Microhardness: from 500 to 1200 MPa. Specific resistance (18°C): 5.75*10 Ohm*m. Operating temperature: up to +300°C.
Advantages of coverage:
- Maximum protects steel from corrosion (compared to other types of galvanizing) under severe operating conditions, even in the presence of scratches or chips of the coating (anodic protection);
- Restores protective properties over time in case of minor mechanical damage (the “self-healing” property of the chromate film);
- Ensures easy screwing of threaded parts;
- Average ductility, in some cases withstands bending, flaring, etc.;
- It is used in processing parts of military equipment and has a characteristic khaki color.
Disadvantages of coverage:
- Low abrasion resistance of chromate film;
- Increased fragility at temperatures above +250° and below -70°C;
- Low chemical resistance to products released during aging of organic materials.
Questions - Answers
Since the main focus of this site is informational and educational
, The Site Council decided not to create a “Forum” section, which, as is well known, often turns into an unprofessional and, often, illiterate discussion club.
To receive qualified
answers to questions and for consultations, a section
“QUESTIONS - ANSWERS”
, to which you can send letters by
All questions will be forwarded to leading Russian specialists in the field of electroplating and surface treatment
and then questions and answers will be placed in the same section.
Tip: By clicking the "forward" link, you can view the questions in chronological order. Using the “back” link, you can scroll through the questions in reverse chronological order, starting with the newest ones.
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Economic and legal issues
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Processes of electrodeposition of metals and alloys
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Chemical coatings
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- Heating the electroless nickel plating solution
- Hard nickel plating
- Is it possible to coat part of an aluminum part with chemical nickel?
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Surface treatment
- Pre-treatment Degreasing AMG
- Titanium etching
- Grinding copper parts with electrocorundum
- Degreasing of parts made of different materials in one solution
- Electrical steel pickling
- Preparation of brass parts before nickel plating
- Steel wire pickling
- Iron precipitate and its permissible concentration in the clarification bath
- Descaling
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- Colorless passivation after galvanizing
- Temperature of surface preparation with phosphating solution with KFA-8
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Anodes and anodic processes
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- Passivation of anodes during nickel plating
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Corrosion protection
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- Protection of the walls of the internal channels of the cooling system from corrosion
- Question about the universal protective coating “METAS-anticorrosive”
- Adhesion of Dacromet 500 LC coating and compatibility with epoxy paints
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- Service life of galvanic zinc coating in alkaline environment
- On the durability of nickel coatings on copper when working in transformer oil
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Electrotype
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Removal of electroplating
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- Removing nickel coating from copper-steel assemblies
- Isolation of a porous surface during chemical removal of nickel plating
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Ecology of galvanic production
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Electroplating equipment
- newSelection of material for the heat exchanger
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- Thermal insulating floats made of polypropylene
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- Drums with partial immersion in electrolyte
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Quality control
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- Quantitative determination of copper impurity in bright nickel plating electrolyte
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- Purification of cadmium sulfate electrolyte
- Measuring the concentration of gold and nickel with the Corian-3 analyzer
- Analysis of electrolyte for chemical oxidation of aluminum for chromium and fluoride content
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Information and its sources
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Galvanizing with black chromating
Decorative blackening of steel with high anti-corrosion properties. Designation: Ts [thickness] hr.ch. Applicable to all types of steel (including stainless steel), cast iron, TsAM. Microhardness: from 500 to 1200 MPa. Specific resistance (18°C): 5.75*10 Ohm*m.
Advantages of coverage:
- Deep black color;
- Protects steel from corrosion even in the presence of scratches or chips of the coating (anodic protection), in contrast to chemical oxidation;
- It perfectly replaces chemical oxidation of steel in cases where increased requirements for corrosion resistance are imposed on products.
Disadvantages of coverage:
- Obligatory oiling is necessary;
- Low abrasion resistance of black chromate film;
- Increased fragility at temperatures above +250° and below -70°C;
- When bending or flaring, black chromate film can be damaged.
You may also be interested in the following articles:
- Galvanizing of trusses from angles, channels and I-beams
- Thermal diffusion galvanizing in mixtures based on hartzinc
- Adhesion during hot-dip galvanizing
- Waste from degreasing during hot-dip galvanizing
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