What are the applications and characteristics of tungsten carbide spraying on cutting tools?

With the development of CNC machine tools, traditional standardized cutting tools can no longer meet the requirements of modern manufacturing to improve efficiency and reduce costs. Tungsten carbide spraying has the advantages of high hardness, good wear resistance, and long service life, which has promoted the rapid development of CNC cutting tools.

Coated tungsten carbide materials are mainly divided into coatings and hard alloy substrates. The coating process is a process of physical and chemical reactions and the formation of thin films. The performance and surface condition of the substrate must meet the coating conditions. In order to achieve the expected performance, the coating must be combined with a suitable substrate.

In general, the coating substrate should meet the following requirements:

• Has good toughness and resistance to plastic deformation;

• High hardness and strength, especially at high temperatures;

The chemical composition must match the tungsten carbide spraying material, and the bond between them must be very strong;

• Do not damage at high deposition temperatures;

The coefficient of thermal expansion should be similar to that of the coating material;

Good thermal conductivity.

The performance of tungsten carbide spraying technology has brought a series of performance improvements to metal products, especially suitable for places with high requirements for corrosion resistance and wear resistance. High speed and high-temperature spraying protection for workers and tungsten carbide spraying equipment, including smoke ventilation, spraying noise, and arc radiation protection.

Coal fired power generation field

The field of coal-fired power generation is one of the areas that exhibits significant seasonal changes. Power plants often overload during summer and winter. In this case, higher requirements are placed on the generator equipment, as prolonged operation in harsh environments can cause some degree of damage and wear to the equipment. Special components in the equipment require tungsten carbide spraying technology to extend their service life.

Manufacturing industry of metal materials and iron products

At present, many metal products adopt tungsten carbide coating technology to improve product production quality and reduce product maintenance costs.

paper mill

Various metal rollers are often required in the papermaking process. The metal roller clamped on the surface should use tungsten carbide spraying technology for durability.