Causes of damage to mechanical parts and treatment methods

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(1) Corrosion damage of parts: To prevent corrosion of parts, corrosion-resistant materials such as nickel, chromium, and zinc are often applied to the surface of metal parts, or oils are applied to the surfaces of metal parts, while anti-corrosive paints are used on the surfaces of non-metallic parts, in order to prevent the parts from coming into direct contact with harmful substances. By improving the surface finish of the parts, it is also possible to reduce the potential difference on their surfaces. (2) Fatigue damage of parts: Manifestations include fracture and surface flaking. Treatment methods involve improving the surface finish of the parts during manufacturing, as well as using a milder cross-section filtering process to reduce stress concentration in the parts. Furthermore, using methods such as carburizing and quenching to improve the hardness, toughness, and wear resistance of parts can also yield good results. (3) Frictional damage to parts: To reduce the amount of abrasive wear, wear-resistant materials should be used as much as possible in the working components of agricultural machinery. When designing the shape of these components, efforts should also be made to minimize their frictional resistance. For example, soil processing components are manufactured using alloys with high manganese and rare earth content, and wear-resistant materials such as polyvinyl fluoride are applied to the plow walls ； Using a roller plow to change the sliding friction with the soil to rolling friction, etc., relatively reduces the amount of abrasive wear.