Identification of cabinet in sheet metal processing
How to judge the quality of the cabinet sheet metal processing, we mainly look at four aspects: see spray paint, steel plate, glass and accessories. Cast aluminum cabinet is made of cast aluminum or piecewise processing. It has good compression and torsion resistance, anti-seismic and impact resistance and heat dissipation. In addition, the surface processing quality of the cabinet is good, the appearance is beautiful, and the dimension precision is high. But the weight is slightly heavier than other types of cabinet, and the manufacturing cost is high and the production cycle is long. So now the most commonly used sheet metal processing is the cold rolled steel plate of this material cabinet. Look at the spray paint on the surface of the cabinet. All the steel in a good cabinet needs to be painted, and it needs to be sprayed evenly. In this way, a good rust proof and dustproof can be achieved.
Steel bar cabinet is a structural form of steel section and steel plate bending combined welding or steel profile welding and aluminum alloy castings. It can meet the general ship conditions. But because of the deformation of steel sections, the accessories inside the cabinet are also very important. If the cabinet has a cable management module, the cable can be used directly. It is better to be fixed in the vertical installation rail. In either case, the upper and side walls of the cabinet should have enough fixed ring (to protect the cable), and can also be carried on the floor of the cabinet for the following line. There are also some screws and nuts for fixing the rack. This can avoid future expansion and bring inconvenience to accessories.
When the cabinet is welded, the deformation is large and the participation stress can not be eliminated, and its accuracy is poor. Look at the thickness of the steel plate, as long as you use your fingers to know the thickness of the steel plate, and the inside of the cabinet is also a good point, because sometimes the equipment is heavy, if it is too thin, you can't bear the weight of the equipment. The most used materials for cabinet now are cold-rolled steel plates. The cold rolled steel plate has no oxidation reaction at normal temperature, so the surface quality is good, the precision of the size is high, and the mechanical and technological properties of the annealing treatment are better than that of the hot rolled sheet. Look at the glass, the glass should be a little thicker, especially to see if there is any cracks around the glass. If there are some suggestions, do not want it, and see if the glass is tough.
标签:   钣金加工 钣金 加工