Surface treatment and protection is an important link in the forging process of locomotive track seat, which is of great significance to improve the corrosion resistance, wear resistance and beauty of the forging. This paper will discuss the surface treatment and protection of locomotive track block forgings, in order to provide useful reference for related manufacturing enterprises.
The surface treatment technology is to change the properties of the forging surface of the locomotive track seat by physical or chemical methods to achieve the desired performance and aesthetic effect. Common surface treatment techniques include:
Spraying technology: By spraying anti-corrosion paint, anti-rust paint and other coatings, a protective film is formed on the surface of the forging, which plays the role of anti-corrosion and anti-rust. Spraying technology is easy to operate and low cost, and is widely used in the surface treatment of locomotive track seat forging.
Electroplating technology: A layer of metal or alloy is deposited on the surface of the forging through an electrochemical reaction to improve the surface hardness and wear resistance. Commonly used electroplating materials are nickel, chromium and so on. Electroplating technology is suitable for occasions with high wear resistance requirements.
Heat treatment technology: By changing the structure of the material surface, improve its hardness and wear resistance. Commonly used heat treatment technologies are quenching, tempering and so on. Heat treatment technology is suitable for high mechanical properties of the occasion.
Laser surface treatment technology: The high energy density of laser is used to harden and alloying the surface of the material to improve the surface hardness and corrosion resistance. Laser surface treatment technology has the advantages of high precision and high efficiency, but the equipment cost is high.
In order to ensure the surface quality and service life of locomotive track block forging, it is necessary to take effective protective measures. Here are some common precautions:
Anti-rust and anti-corrosion: In the manufacturing and storage process, the environment should be kept dry to avoid contact with corrosive substances. For the processed surface, anti-rust agent or anti-rust paint should be applied in time to prevent rust and corrosion.
Packaging protection: During transportation and storage, proper packaging protection should be carried out for locomotive track seat forgings to prevent bumps, scratches and dust pollution. Packaging materials should have certain shock-proof, moisture-proof and rust-proof functions.
Regular inspection and maintenance: In the process of use, the locomotive track block forging should be checked regularly, and if surface damage or corrosion is found, it should be treated in time. For forgings stored for a long time, anti-rust maintenance should be carried out regularly, such as coating anti-rust agent or anti-rust treatment.
Environmental control: In the process of use, environmental factors such as temperature, humidity, salt, etc. should be controlled to reduce the risk of corrosion and damage. For use in harsh environments, surface treatment materials and processes with corrosion resistance and wear resistance should be selected.
Quality assurance system: Establish a sound quality assurance system to ensure effective quality control throughout the process from raw materials to finished products. The quality management department shall conduct regular sampling and comprehensive inspection of the products to ensure that the quality of the products meets the requirements.
To sum up, the surface treatment and protection of locomotive track block forging is the key link to ensure its quality and life. Through reasonable surface treatment technology and effective protective measures, it can improve the corrosion resistance, wear resistance and beauty of locomotive track block forging, extend its service life, and provide a strong guarantee for the safety and stability of railway transportation. At the same time, manufacturing enterprises should pay attention to the development and application of new technologies, constantly optimize the surface treatment and protection process, and improve product quality and market competitiveness.
