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WC Tungsten Carbide Powder Application

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Tungsten Carbide WC

Coating function

Powder application

Tungsten carbide (WC) powder, as a high-performance hard alloy base material, occupies an important position in the industrial field due to its unique physical and mechanical properties. Its core properties and functional characteristics are as follows:

Ultra high hardness and excellent wear resistance

Tungsten carbide powder has ultra-high hardness, with a microhardness of 1600-2400 HV at room temperature, second only to diamond and cubic boron nitride in hardness. This high hardness characteristic enables the materials or coatings prepared to effectively resist hard object scratching, friction and wear, and perform well under harsh working conditions such as dry friction and high load. Whether as a tool material or a wear-resistant component coating, it can significantly improve the wear resistance of products, reduce failures caused by wear, and extend their service life.

Strong erosion resistance and high compressive strength

When facing the erosion and impact of high-speed fluids and granular media, tungsten carbide powder exhibits excellent erosion resistance and can effectively resist the erosion and damage of the medium. At the same time, it has high compressive strength and can withstand large pressure loads without plastic deformation or fracture, making it suitable for high-pressure and high impact industrial environments, such as key components in mining crushing, fluid transportation, and other fields.

Good processability and repairability

Compared to some superhard materials, tungsten carbide powder has better processability and can be processed into different shapes of components or coatings through various processes such as sintering, thermal spraying, welding, etc., to meet the manufacturing needs of complex structures. When local wear or damage occurs in components, tungsten carbide coatings or components can also be repaired through repair processes to restore their performance, reduce replacement costs, and improve resource utilization.

Low friction coefficient and high toughness

The material prepared from tungsten carbide powder has a low surface friction coefficient, which can reduce frictional resistance and energy loss during relative motion. At the same time, it can reduce the heat and wear generated by friction, improve equipment operating efficiency and stability. In addition, it also has high toughness and is not easily brittle when subjected to impact loads, balancing hardness and toughness and avoiding the defects of traditional hard materials that are prone to fracture.

Excellent high temperature resistance performance

Tungsten carbide powder has a high melting point and good high-temperature stability. It can maintain its key properties such as hardness and strength without significant degradation in certain high-temperature environments, and can adapt to the needs of high-temperature working conditions, such as high-temperature molds, metallurgical equipment components, etc. It can still play a stable role in high-temperature friction and corrosion environments.

Wear-resistant, erosion-resistant, processable and repairable, low friction coefficient, ultra-high hardness, high compressive strength, high toughness, and high-temperature resistance.

Tungsten carbide (WC) powder, with its ultra-high hardness, excellent wear resistance, low friction coefficient, and good toughness, has become an ideal protective and strengthening material for core components in multiple industries. Its specific applications are as follows:

In the field of hydroelectric power generation and fluid transportation, the rotor of the water turbine is subjected to high-speed water flow and sediment erosion for a long time. After using tungsten carbide powder coating, its erosion resistance is greatly improved, which can effectively resist surface wear caused by water flow impact and significantly extend the service life of the rotor; The water pump impeller is reinforced with tungsten carbide, which can withstand particle erosion in complex fluid media, maintain the integrity of the impeller structure, and reduce efficiency decline caused by wear. After coating tungsten carbide on valve components such as gate valves and ball valves, the wear resistance of the valve seat and valve core is enhanced, which can maintain good sealing performance during frequent opening and closing processes, reduce the risk of medium leakage, and ensure stable operation of the fluid system.

In the paper and printing industry, equipment components such as paper rollers, pressure rollers, corrugated rollers, and drying cylinders need to be in long-term contact with paper and withstand pressure friction. The high hardness coating formed by tungsten carbide powder can ensure precise dimensional accuracy and surface smoothness of the roller surface during high-speed operation, reducing quality problems such as scratches and indentations caused by roller wear on paper; Printing rollers and curved rollers, with the wear-resistant properties of tungsten carbide, can maintain the clarity and consistency of printed patterns for a long time, improving the stability of printed product quality.

In the fields of energy extraction and mechanical manufacturing, petroleum drill rods and screw drilling tools are subjected to high loads, high friction, and corrosion in complex geological environments underground. Tungsten carbide coatings provide them with strong wear-resistant protection, reducing the probability of drilling tool failure due to wear and improving drilling efficiency; Gears and shaft components are reinforced with tungsten carbide, which, with its high compressive strength and toughness, can resist impact loads during transmission, reduce tooth wear and journal loss, and lower mechanical transmission energy consumption. After coating the fan impeller with tungsten carbide, it can not only resist the erosion of dust particles in the airflow, but also reduce the airflow resistance due to its low friction characteristics, improving the operating efficiency and stability of the fan.

If you want to spray tungsten carbide on the above parts, you can use our HVOF/HVOF equipment.