Author: Site Editor Publish Time: 2024-01-08 Origin: Site
Quality train wheels need to focus on processes such as wheel material, heat treatment, machining process, quality control, surface treatment and safety performance to ensure the production of high-quality, high-performance train wheels.
Choosing the right material is the basis for producing high-quality train wheels. Commonly used materials include cast steel, forged steel, cast iron, etc., according to the working conditions of the wheel and the use of the requirements of the selection of suitable materials, we can provide train wheels made of the following materials: ER6, ER7, ER8, ER9, R7T, R8T, R9T, CL60, AAR-C, EA4T, R7T, CL65.
Heat treatment is an important process step to improve material properties, including quenching, tempering, annealing, etc.. According to the material and process requirements, need to develop a reasonable heat treatment process to ensure that the hardness and toughness of the train wheel and other properties in line with the requirements.
The machining process includes two stages of roughing and finishing. Roughing stage is mainly to remove excess material for the subsequent finishing to prepare; finishing stage is to ensure the dimensional accuracy of the rail wheel and surface quality of the key stage, the need to use high-precision machining equipment and process parameters
Through a variety of testing methods, the performance and status of train wheels are comprehensively assessed.
Detailed laboratory tests are carried out on the material composition of train wheels to verify whether the composition meets the standard requirements.
It is to observe the metallurgical organisation of train wheels and assess their microstructure and metallurgical quality.
It involves the testing of the wheel's mechanical properties, such as tensile , bending, impact, etc. to assess its mechanical properties.
Ultrasonic waves are used to carry out non-destructive flaw detection on the inside of the wheel to detect internal defects such as cracks, porosity, etc.
The surface of the railway wheel is examined by using the magnetic properties of the magnetic powder to detect defects on the surface and near-surface.
The surface of the train wheel is measured by means of a hardness tester to assess its hardness and abrasion resistance.
It is to measure and report the surface quality and dimension of the railrosd wheel in detail to ensure that it meets the standard requirements.
Through these testing methods, the quality and performance of train wheels can be comprehensively assessed to ensure their safety and reliability in railway transport.
Surface treatment is an important step to improve the corrosion resistance and appearance quality of train wheels. Commonly used surface treatment methods include spraying, electroplating, thermal spraying, etc. It is necessary to choose the appropriate surface treatment method according to the use environment and appearance requirements of the wheel.
The safety performance of wheels is one of the important considerations in the production process. Need to ensure that the wheel rim thickness, tread wear limit, rim width, rim thickness, etc. in line with the standard requirements to ensure the safety and stability of train operation.
