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Surface Quenching of Crawler Crane Track Roller
Sep 27,2024
Surface quenching is a heat treatment method that can improve the hardness and wear resistance of materials. It is mainly suitable for mechanical parts that need to be wear-resistant and anti-deformation. The process of surface quenching generally includes steps such as heating, cooling and tempering. Surface quenching generally does not change the overall performance of the material, but only improves the performance of the surface of the material.
Why do we perform surface quenching on the surface of bottom roller?
As one of the important components of the crawler crane undercarriage, the lower roller is responsible for carrying the weight of the crawler crane and keeping the crane running smoothly. The surface of the roller is often worn and impacted by the road surface, and is prone to damage such as wear and cracks. Therefore, in order to improve the hardness and wear resistance of the roller and extend its life, surface quenching is usually performed.
- Surface quenching can form a hardened layer on the surface of the track roller, significantly improving its surface hardness and wear resistance.
- Surface hardening can improve the impact resistance of the bottom roller, allowing it to withstand higher impact forces without breakage or deformation.
- Surface hardening can improve the fatigue resistance of the lower roller, allowing it to withstand more cyclic loads without causing fatigue cracks.
- Surface quenching can change the organizational structure of the roller surface, making it denser, reducing surface roughness, reducing wear and friction coefficient, and improving lubrication effect.
- Surface quenching can precisely control the quenching depth, hardening only the surface of the part, while maintaining good toughness inside, avoiding a decrease in toughness due to excessive hardness and affecting the overall strength.
- Compared with overall quenching, surface quenching can save materials and energy, reduce costs, and improve production efficiency. At the same time, surface quenching can avoid the long cooling time, deformation and cracking problems caused by overall quenching.
Keyword:
surface quenching
crane track roller
production process
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