The wave washers are located on different sides of the center surface, tangent to the corresponding surface parallel to the center surface or the second support surface, and improve their initial compression behavior. Wave washers are lap-jointed elastic washers that can usually be installed in places with small spaces, such as prestressing bearings, reducing the noise of bearing operation, and improving the accuracy and stability of bearing operation. In addition, they are also widely used in electronic appliances. The materials include carbon steel, stainless steel, copper alloy, etc. Next, let’s take a look at the advantages and functions of wave washers.
1. Advantages of Wave Washers
Wave washers are a type of washers with a wide range of applications. Because they have many advantages, the springback is taken as the optimization target. Based on a careful analysis of the elastic optimization design method of the wave washers in the connection system, a design calculation software is compiled to meet the standardization and parameterization design requirements of the elasticity of the wave washers. The load-deformation response relationship of the bolt-flange connection with a wave washer under axial load is simulated and experimentally studied by using the finite element analysis method and compression-rebound test. The calculation results are consistent with the experimental data, indicating that the proposed finite element analysis model can be well used to study the mechanical behavior of the wave washers.
On the basis of considering the creep of gaskets and bolts, the deformation coordination equation of gasket, bolt, flange and gasket connection system was established, which was regarded as a statically determinate system to improve the tightness analysis method. The results show that the gasket can not only compensate for the system relaxation caused by the creep of bolts and gaskets, but also compensate for the flange deflection and bolt tension to a certain extent, thereby solving the problem of the residual stress drop of the medium caused by the gasket under high temperature conditions.
2. The role of wave washers
- 1. Wave washers protect the surface of workpieces: The main function of wave washers is to prevent the nut from loosening mechanical equipment, and they are mainly placed under the nut. The characteristics of spring washers are low cost and easy installation. They are only used for equipment that is frequently disassembled, and are used for general mechanical products and bearing stress. The function of wave washers is achieved through their elasticity and diagonal friction. It is widely used to prevent the fasteners in the joints that are frequently disassembled from loosening. The device is located under the nut to prevent the nut from loosening, as described in the national standard. Wave washers are also used to protect the surface of workpieces.
- A stable phosphate film is formed on the surface of multi-layer wave washers: The multi-layer wave washers are heated in air or directly immersed in a concentrated oxidizing solution to produce a very thin oxide film on the surface of the corrugated spring. Phosphating is usually applied to the surface treatment of carbon steel wave washers, and the finish is very good, so that it reacts with phosphoric acid or phosphate to form a stable phosphate film on the surface of the wave washers. Wave washers are open elastic washers that can usually be installed in places with small spaces, such as prestressing bearings, reducing the noise of bearing operation, and improving the accuracy and stability of bearing operation. In addition, there are also a large number of application materials in electronics, carbon steel, stainless steel, copper alloys, etc.
