Use micro switch to avoid normal loss
Release time：2018-11-28 Clicks： Click
In the normal use of micro switch, we should pay attention to the normal loss, which we need to avoid? Here is a detailed introduction to you.
How to Prevent the Loss of Micro Switch
The major technical feature of the design of micro-switch is to prevent loss and prolong its service life. Fretting loss can be divided into wear and fatigue. Fretting wear means wear on contact surface or material loss. Fretting fatigue refers to the generation of fatigue cracks or the reduction of fatigue life of metals and other materials.
A. Increasing the surface strength of contact elements is the main way to reduce the loss. Through various surface treatments, such as physical (laser, ion implantation and other hardening techniques to change the surface microstructure), chemical (carburizing, nitriding and other surface hardening techniques), mechanical (shot peening, rolling and other methods to increase the surface residual compressive stress), the material surface can obtain special composition, structure and properties, in order to improve its properties. Wear resistance and fatigue resistance. In addition, there are ways to enhance the electrical capacity of fatigue-prone metal reeds and contacts, such as using silver, alloy and other metal materials.
B. Structural design changes can also play a role in reducing losses. For example, by changing the geometrical structure, clamping mode and contact size of components, as well as the pressure distribution and contact mode at the contact surface, fretting damage resistance can be improved to varying degrees. Another effective measure to reduce fretting loss is to reduce friction coefficient (friction), which can be achieved by increasing lubrication medium.