shock absorber valve

Introduction to Shock absorber valve

The shock absorber valve of high-speed rail is a key component in the suspension system of high-speed rail vehicles, providing a guarantee for the safety during the operation of high-speed rail

Function

Precise control of damping force: The Safety Valve for Railway Dampers can precisely adjust the flow velocity and volume of the oil inside the rail damper according to different working conditions during high-speed rail operation, thereby generating appropriate damping force. When the vehicle starts, accelerates, decelerates, turns and passes over uneven roads, it can effectively suppress the vibration and shaking of the vehicle body, ensuring the smoothness and comfort of the vehicle's driving.

Buffering impact loads: During high-speed operation, high-speed rail is subject to various impact loads, such as the impact force generated by track joints and turnouts. The Safety Valves for Train Suspension can instantly buffer these impacts, converting the impact energy into other forms of energy such as the heat energy of the oil, reducing damage to the vehicle structure and equipment, and extending the service life of the vehicle.

Ensuring vehicle stability: By reasonably adjusting the damping force, the valve for shock absorber helps maintain the vehicle's posture stability, preventing excessive tilting or side sway of the body. When a train passes through a curve at high speed, it can keep the vehicle in good lateral stability, ensure that the train travels along the predetermined trajectory, and improve the safety of train operation.

Manufacturing difficulties

High-precision processing requirements: The internal structure of the valve for rail damper is complex, containing many precise small holes, channels, valve cores and other components. The processing accuracy requirements for these components are extremely high. For instance, the fit clearance between the valve core and the valve seat usually needs to be controlled within a few microns to tens of microns to ensure the sealing performance of the valve and its precise flow control capability. Any minor processing error may lead to a decline in the performance of the valve and affect the overall effect of the shock absorber.

High-performance material selection and processing: High-speed rail shock absorber valves need to operate under long-term high-speed, high-load and complex environmental conditions, so the performance requirements for materials are very strict. Materials should not only possess high strength and high toughness to withstand huge impact forces and cyclic loads, but also have excellent wear resistance, corrosion resistance and fatigue resistance. In addition, the heat treatment process of the material is also of vital importance. It is necessary to precisely control the heat treatment parameters to obtain the ideal microstructure and properties of the material.

Complex surface treatment technology: To enhance the wear resistance, corrosion resistance and reduce the coefficient of friction of shock absorber valves, special surface treatment is required. For instance, a high-performance coating is formed on the surface of the valve by methods such as electroplating, electroless plating and spraying. These surface treatment processes require precise control of parameters such as the thickness, uniformity and adhesion of the coating to ensure that the coating can maintain good performance during long-term use.

Strict quality inspection and control: As the quality of high-speed rail shock absorber valves is directly related to the safety and comfort of train operation, a strict quality inspection and control system must be established. During the production process, each component needs to undergo multiple inspection procedures, including dimensional accuracy inspection, surface quality inspection, sealing performance inspection, flow characteristic inspection, etc. At the same time, it is also necessary to conduct an overall performance test on the shock absorber valve, simulate its working conditions in actual operation, and ensure that all its performance indicators meet the design requirements.

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If you need shock absorber valve, please contact us and we will customize a precise processing plan for you.