The disc spring dry goods are here

      Disc SpringA disc spring is a conical ring-shaped disk that bears axial loads, with the load evenly distributed along the inner edge of the upper surface and the outer edge of the lower surface, and the thickness of the disk is constant. Disc springs are usually made of spring steel and can withstand impact loads, static loads, or dynamic alternating loads, meeting strict requirements for load loss and fatigue life.

      Disc springs mainly rely on pre-tightening deformation to prevent loosening. From the working principle, the thicker the disc spring, the greater the tensile force it provides and the greater the resistance to pulse pressure. The thinner the disc spring, the greater the ratio of free height to thickness, allowing for greater deformation. Since the tension determined by the thickness of the disc spring is inversely proportional to the deformation, this presents a contradiction; when the tension or deformation provided by a single disc spring cannot meet the working conditions, it can be resolved by combining disc springs.

　　When installing and using disc springs, the force compressing the disc spring must not exceed the flattening force of the disc spring, otherwise, the disc spring may fail prematurely due to excessive internal stress (even completely flatten or break). Therefore, it is very necessary to use a torque wrench to control the pre-tightening force when tightening the disc spring. However, it should be noted that this does not mean that the force on the disc spring will necessarily be less than the flattening force; there will be other factors. Therefore, it is recommended to choose disc springs with a recovery force greater than the pre-tightening force required by the bolt to avoid some unpredictable risks and improve the safety factor of the disc spring.

　　Fatigue life of disc springs: The fatigue life of a disc spring refers to the number of cycles or time until the structure or machinery subjected to cyclic loads is destroyed. Ensuring that it operates safely and reliably within the expected service life, and reasonably designing the fatigue life of components and structures, is a closely related issue for users and a topic of great concern for engineering technicians and designers. Due to the influence of random factors such as the geometric characteristics of components, material properties, loads, and usage environments, the actual performance often deviates from the design specifications, and the fatigue resistance of the structure shows significant variability. Fatigue failure of disc springs refers to the phenomenon where fatigue cracks occur at local positions of parts or components and gradually expand, leading to sudden fracture under repeated action of alternating loads. The peak cyclic load that causes fatigue failure is often much lower than the safe load calculated based on static fracture analysis. The formation and propagation of fatigue cracks are very subtle, and the occurrence of fatigue fracture is instantaneous. Therefore, fatigue failure often poses serious safety hazards in production, resulting in economic losses and catastrophic consequences.

　　High TemperatureDisc SpringDue to its advantages such as small space occupation, convenient installation and use, strong pre-tightening force compensation ability, and safety and reliability, it has gradually been adopted by various manufacturing enterprises and is widely used in equipment flanges, pipeline flanges, and valves in industries such as electric power, steel, chemical, machinery, mining, and petrochemicals, especially suitable for bolt pre-tightening of various flanges in high-temperature environments.