Switchgear (switchgear) main role is performed in the power system generation, transmission, distribution and power conversion process low-voltage switchgear selection, conduct opening and closing, control and protection of electrical equipment. Switchgear components are mainly composed of classification switchgear circuit breakers, disconnectors, load switch, operating mechanism, and a variety of transformer protection devices, and many, such as by installing a circuit breaker can be divided into withdrawable switchgear and After the fixed switch is due to the deformation of the workpiece welding weld thermal expansion of low-voltage switchgear molecular prices, squeezing microscopic displacement generated during welding, can not be reset after the cooling caused by the stress generated. In order to overcome the deformation of low voltage switchgear, shaping process must be considered. Shaping methods generally are: ① workpiece deformation range, the deformation in the opposite direction predicted by testing before forcing the workpiece during welding, after welding in order to reach a predetermined size; ② After welding methods used are corrected; ③ hit relatively constricted portion after pressure welding, And the stress balance; ④ heated soldering relatively loose convex part, to the same contraction and welding purposes; overall heat treatment of the components necessary ⑤. Anhui low voltage switchgear | Tianchang instrument linked instruments (certified) | Low-voltage switchgear is provided by the United Instrument Sales Co., Ltd. Tianchang instrument. Tianchang instrument Alliance Instrument Sales Co. (www.ylybxs.com) (www.ylybxs.com) is Chuzhou, temperature instrumentation leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum to meet customer needs. Tianchang instrument linked instruments in leadership with the staff warmly welcome all inquiries negotiations to create Tianchang instrument linked instruments a better future.