The cabinet is usually made of cold-rolled steel plate or alloy and is used to store computers and related control equipment. They can provide protection for storage equipment, shield electromagnetic interference, and make the equipment arranged orderly, which is convenient for future maintenance. The cabinet is generally divided into server cabinet, network cabinet, console cabinet, etc. the common cabinet colors are white, black and gray. The cabinet body is divided into aluminum cabinet body, cold-rolled steel cabinet body and hot-rolled steel cabinet body according to material. According to the processing technology, it is divided into 10% special-shaped cabinet and 16 fold cabinet.
The type of board, coating material and processing technology determine the stability of the cabinet. Most of the cabinets used in the early period are made of cast steel or angle steel, which are connected or welded with the cabinet frame through screws or rivets, plus the cover plate made of thin steel plate. This kind of cabinet was eliminated because of its large volume, heavy weight and simple appearance. With the use of transistors and integrated circuits and the miniaturization of various components, the cabinet structure is also developing in the direction of miniaturization and components. The cabinet has developed from the overall panel structure to the plug-in box and plug-in structure with a certain size series. The assembly and layout of sub boxes and plug-ins can be divided into two types: horizontal layout and vertical layout. The cabinet body is usually made of steel plate, steel profiles with various cross-sectional shapes, aluminum profiles and various engineering plastics. In addition to welding and screw connection, the frame of the cabinet also adopts adhesive technology.
