Let me tell you about the common faults of insulators
Time:
2023-05-26 10:56:37.503
Let me tell you about the common faults of insulators
1. Poor contact
The metal conductor inside the terminal is the core part of the terminal, which transmits the voltage signal from the external wire or cable to the corresponding contact of its matching connector. Therefore, due to unreasonable structural design, wrong material selection, unstable mold, rough surface, Unreasonable surface treatment processes such as heat treatment and electroplating, improper assembly, poor storage and use environment, improper operation and use, etc., will lead to poor contact between the contact parts and the mating parts of the contact parts.
2. Poor insulation
The function of the insulator is to keep the contacts in the correct position. Therefore, the insulating parts need to have excellent electrical properties, mechanical properties and process formability, especially with the high density, the effective wall thickness of the insulator is getting thinner and thinner. This puts forward stricter requirements on insulating materials, injection mold precision and molding process. Short circuit, leakage, breakdown, low insulation resistance and other insulation defects. Due to the pollution and moisture of metal residues, flux, etc. on the surface or inside of the insulator, the formation of ion conduction channels between the organic substance precipitates and harmful gas adsorption film and the surface water film will cause moisture absorption, mildew and aging of the insulating material.
3. Poor fixation
Insulators not only provide insulation, but also generally provide precise centering and protection for extended contacts. At the same time, they also have the functions of installation, positioning and locking on the equipment. Poor fixation may affect the reliability of the contact, resulting in momentary power failure and serious disintegration of the product. Disassembly means that when the terminal is inserted, due to materials, design, process and other reasons, the structure is unreliable, and the abnormal separation of the pin and the socket will cause serious consequences of interruption of power transmission and signal control of the control system. Improper selection of molding process, heat treatment, The poor quality of mold, assembly, welding and other processes, and insufficient assembly will cause poor fixation.
In addition, poor appearance caused by plastic shell peeling, corrosion, bruising, flashing, breakage, rough machining deformation of contact parts, poor positioning and locking fit dimensions, poor processing quality consistency, and poor interchangeability caused by excessive total separation force are also common. Diseases, frequently-occurring diseases, these faults can generally be found and eliminated in time during inspection and use.