As a vital protection device in the power system, the reliability of Lightning Arrester is directly related to the safe and stable operation of the power network. The following will explain the key points of the manufacturing process and the quality control system to improve the reliability of Lightning Arrester products.
In terms of the key points of the manufacturing process, the first is the selection and pretreatment of raw materials. High-quality raw materials such as zinc oxide valve sheets are the basis, and their purity, microstructure and other indicators must be strictly controlled. Before putting into production, the raw materials are finely pretreated, such as drying, screening and other operations to remove impurities and moisture to ensure that their performance is stable and uniform, laying a good foundation for subsequent processes. For example, if the zinc oxide valve sheet contains too many impurities, it may cause its nonlinear characteristics under overvoltage to deteriorate, affecting the protection effect of Lightning Arrester.
Secondly, the precise forming and assembly process of the components is extremely critical. During the valve sheet pressing process, parameters such as pressure, temperature and time must be accurately controlled to ensure the density and electrical performance uniformity of the valve sheet. The production and welding of the electrodes must ensure that they are firm and in good contact to avoid problems such as cold soldering and desoldering. During assembly, the matching tolerance of each component must be strictly controlled to ensure that the internal structure is compact and stable, and to prevent the displacement or loosening of components due to vibration and other factors during operation, which will affect the normal operation of Lightning Arrester.
Furthermore, the sealing process cannot be ignored. Good sealing can effectively prevent external moisture, dust, etc. from invading the interior of Lightning Arrester, and prevent valve plates and other components from being damp, aging or contaminated, thereby reducing performance. Use high-quality sealing materials and use advanced sealing technologies such as vacuum potting and rubber sealing ring compression sealing to ensure the reliability and durability of the seal and extend the service life of Lightning Arrester.
In terms of the quality control system, establishing a complete raw material inspection system is the primary link. Each batch of raw materials is strictly inspected upon entry, including component analysis, performance testing, etc. Only raw materials that pass the inspection can enter the production process. During the production process, a full process inspection is implemented, and the semi-finished products of each manufacturing process are sampled or fully inspected to promptly discover and correct process deviations and quality defects. For example, after the valve plate is pressed, its electrical parameters are tested to see if they meet the standard requirements.
Finished product inspection is the top priority of quality control. Professional testing equipment is used to conduct comprehensive tests on key performance indicators such as Lightning Arrester's insulation resistance, leakage current, and residual voltage to ensure that the performance of the finished product meets national standards and industry specifications. At the same time, a quality traceability system is established to trace the raw material information, process parameters, inspection records, etc. in the production process of each Lightning Arrester product, so that the cause can be quickly located and corresponding measures can be taken when quality problems arise. Through such a comprehensive and strict quality control system, the reliability and stability of Lightning Arrester products are guaranteed from the source, safeguarding the safe operation of the power system.
