Hard metal coating
Also known as: Thermal hard metal coating, Hard metal roller coating
PROTEK® Hard metal coating made of tungsten carbide or chromium carbide
PROTEK® hard metal coatings are high-performance, dimensionally stable solutions based on tungsten carbide (WC) or chromium carbide (Cr3C2). These extremely wear-resistant coatings can be applied to various roll materials, significantly improving their service life and performance. Manufactured using advanced processes and high-quality materials, they ensure optimal performance and reliability in demanding applications, making them ideal for applications involving chipping, forming, and conveying abrasive media.
Application areas of hard metal coatings
Developed for your specific needs, our PROTEK® hard metal coatings deliver exceptional protection and functionality. Through our commitment to quality and innovation, we partner with you to create customized solutions that meet your unique requirements and elevate your business performance.
Our product portfolio encompasses hard metal coatings for rollers used in various applications, including:
- Calender rollers in battery manufacturing: Enhancing wear resistance and extending service life.
- Paper production: Improving wear resistance and prolonging lifespan.
- Textile production: Enhancing sliding properties and corrosion resistance.
- Steelworks: Boosting wear resistance and heat tolerance.
- Film production: Ensuring process and product quality.
Our PROTEK® hard metal coating is also used in a wide range of applications, including:
- Pumps and other machine components: Enhanced corrosion resistance and extended lifespan
- Engine components: Reduced wear and friction
- Cutting and forming tools: Improved tool performance and durability
- Wear parts in machinery and equipment: Enhanced wear resistance and protection
- Calender rolls
- Carrier rollers
- Film guide rollers
- Cutting rollers
All advantages & essential properties of hard metal coatings
PROTEK® hard metal coatings are characterized by a number of special features and benefits that make them ideal for a wide range of applications in various industries, helping to increase the efficiency and profitability of your operation:
- Wear-resistant against abrasive and erosive stress as well as impact and shock loads
- Resistant to corrosion, even in aggressive environments
- Contributes to effective heat dissipation
- Remains stable even at high temperatures
- Exceptional surface hardness of up to 1500 HV 0.3
- Sustainable alternative to traditional hard chrome
- Protects surfaces from cuts and scratches
- Electrically conductive and therefore suitable for use in hazardous areas
- Roughness depth Rz, polished <0.2 µm possible
- Reduces maintenance effort and costs
- Extended service life of rollers
- Higher production speed
- Minimization of machine downtimes
- Facilitation of surface cleaning
- Improved product quality
- Suitable for CFRP, GRP, aluminium and steel
INOMETA coating processes for PROTEK® hard metal coatings
We offer specialized coating processes for our PROTEK® hard metal coatings, which are based on tungsten carbide or chromium carbide – they are produced using high-precision processes to ensure a uniform and durable coating:
- Atmospheric plasma spraying (APS) with gas e. g. argon, helium, nitrogen, hydrogen or a mixture of these
- High velocity oxygen fuel spraying (HVOF)
- Arc spraying with atomizing gases like nitrogen or argon
- Thermal spraying with wire or with powder
The advantages of thermal spraying include:
- High adhesive strength of the coating
- Minimal substrate distortion
- Ability to coat complex geometries
- Wide range of coating materials
- Enhanced surface properties
- High coating thicknesses
- Corrosion and wear resistance
- High- temperature resistance
- Thermal conductivity
- Electrical insulation properties
Our coating processes are suitable for different components and as optimum protection against static, dynamic, mechanical and chemical stresses. In addition, a large number of combinations of base and coating materials are possible with these processes.
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