Network cabinet production development

The early network cabinets are mostly made of castings or Angle steel connected by screws, rivets or welded into the cabinet frame, and then the cover plate (door) made of thin steel plate. This kind of cabinet was large, bulky, crude in shape, and had become obsolete. With the use of transistors and integrated circuits and the miniaturization of various components and devices, the structure of the cabinet is also developing toward miniaturization and building blocks. The network cabinet has developed from the whole panel structure in the past to the plug-in box and plug-in structure with a certain size series. Plug-in box, plug-in assembly arrangement of horizontal arrangement and vertical arrangement of two categories. The materials of network cabinet are generally thin steel plate, steel profiles of various cross-section shapes, aluminum profiles and various engineering plastics. In addition to welding and screw connection, the frame of the network cabinet also adopts the bonding process.