What are characteristics of vibrating screen frame sprayed with carbon tungsten
Information summary：The vibrating screen frame sprayed with tungsten carbide has multiple characteristics, mainly reflected in high hardness and wear resistance, good corrosion resistance, thermal stability, etc. The following is a detailed introduction:
1. High hardness and wear resistance
High hardness: Tungsten carbide itself has a high hardness, with a Mohs hardness of 9-9.5, second only to diamond. Spray
The vibrating screen frame sprayed with tungsten carbide has multiple characteristics, mainly reflected in high hardness and wear resistance, good corrosion resistance, thermal stability, etc. The following is a detailed introduction:
1. High hardness and wear resistance
High hardness: Tungsten carbide itself has a high hardness, with a Mohs hardness of 9-9.5, second only to diamond. Spraying it on the vibrating screen frame can significantly improve the hardness of the grid surface, enabling it to resist strong friction and impact of materials during screening, effectively reducing wear and extending the service life of the grid.
Wear resistant particles: During the operation of the vibrating screen, the material will continuously come into contact with the mesh and mesh frame and generate friction, especially for some materials containing hard particles, which cause severe wear to the mesh frame. After spraying tungsten carbide, the tungsten carbide coating formed on the surface of the grid can effectively resist the wear of these abrasive particles due to its high hardness and excellent wear resistance, maintaining the structural integrity and screening performance of the grid.
2. Good corrosion resistance
Chemical stability: Tungsten carbide has good chemical stability and can resist corrosion from various chemical substances. In some harsh working environments, such as screening materials containing corrosive media such as acid, alkali, salt, etc., the vibrating screen frame sprayed with tungsten carbide can effectively prevent corrosion, avoid damage to the grid structure and performance degradation caused by corrosion.
Oxidation resistance: Under high temperature and oxygen conditions, tungsten carbide coating has good oxidation resistance, which can prevent the surface of the grid from being oxidized to a certain extent, maintain the stability of the grid's performance, and extend its service life in an oxidizing environment.
3. Thermal stability
High temperature resistance: Tungsten carbide has a high melting point and can withstand high working temperatures. During the operation of the vibrating screen, a certain amount of heat may be generated due to friction and vibration of the material. The mesh frame sprayed with tungsten carbide can maintain stable performance at higher temperatures without deformation, softening, or performance degradation caused by temperature increase.
Matching of thermal expansion coefficient: The thermal expansion coefficient of tungsten carbide matches well with the commonly used metal materials for vibrating screen frames. When the temperature changes, there will not be excessive internal stress between the coating and the substrate due to the large difference in thermal expansion, thus ensuring the adhesion and stability of the coating and avoiding phenomena such as cracking and peeling of the coating.
4. Improve screening efficiency
Smooth surface: Tungsten carbide coating can form a relatively smooth surface after spraying, which helps the flow of materials on the sieve, reduces material adhesion and blockage, and enables materials to pass through the sieve more smoothly, improving screening efficiency and quality.
Correct mesh size maintenance: Due to the excellent wear resistance and dimensional stability of tungsten carbide coating, it can effectively maintain the shape and dimensional accuracy of the mesh, ensuring that the material can be correctly classified according to the specified particle size during the screening process, and improving the correctness and reliability of screening.
5. Reduce maintenance costs
Reduce maintenance and replacement frequency: Due to the tungsten carbide coating, the service life of the vibrating screen frame can be significantly improved, reducing damage and failures caused by wear, corrosion, and other reasons, thereby reducing the frequency of maintenance and replacement, reducing equipment downtime, improving production efficiency, and reducing overall maintenance costs.
High comprehensive economic benefits: Although spraying tungsten carbide on the vibrating screen frame requires a certain initial investment, in the long run, it has high comprehensive economic benefits due to its ability to extend the service life of the grid, improve production efficiency, and reduce maintenance and replacement costs.
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