Auxiliary electric heater assembly accuracy

Auxiliary electric heater assembly accuracy may not know very well, let’s give you a specific explanation. Assembly process is a method and means of applying the assembly accuracy. In assembly, it is necessary to use a certain process method (trimming, adjustment, etc.) to compensate the defects of the component plus TE precision to ensure product assembly accuracy. The accuracy of the mechanical product is realized by assembly. According to the product performance requirements, structural characteristics and production types, production conditions, different assembly methods can be used to ensure product assembly accuracy, and the method has interchange, option, Finance method and adjustment method. In the mating of the flange and pipe in the electric heater, the flange is a plurality of plug-in workpieces, and the management is also a large number of workpieces. The gap between the assembled flange parts and the tube is high, and the required assembly accuracy is not high, and it is necessary to meet the predetermined assembly accuracy requirements for any selection, trimming and adjustment. Assembly with interchange, its assembly accuracy depends primarily on the manufacturing accuracy of the part. According to the degree of interchange of parts, interchange assembly can be divided into full interchange assembly method and incomplete interchange. The formation of full interchange assembly is used in the mating of the flange and the tube in the electric heater. In all products, each of the components of each product does not need to pick or do not need to change its size or position, it will meet the assembly method required to assemble accuracy. The assembly quality is stable and reliable (assembly quality is the addition of tap of part to ensure that the assembly process is simple, high assembly efficiency (parts do not need to be selected); easy to achieve automatic assembly, easy to organize flow operation; product maintenance is convenient . In the production of electric heater systems, welding is a very electric space heaters important step. Most of the system is delivered by the pipe, so the connection between the pipes and the ducts, the pipes, and other components, except for the bolt connection, is welded. First, the flange is welded to the pipe, and then connect two pipes through the bolt connection. Because the pipeline is ganhen, the temperature and pressure are relatively high, and the quality of welding directly affects the quality of the entire system. It should be seen that the welding process is an indispensable step in the design of the thermal conductive oil system. Welding is a process of local rapid heating and cooling, and the workpiece is not freely expanded and contracted, and the workpiece is cooled in the welding force or even deformation of the workpiece. Therefore, some important products have to remove welding stress in the welding after welding, correct welding deformation. Today’s welding technology has been developed, which can be welded and more equal to even higher than those of the connected body, without inside and abroad. The welded joint means that weld the bodies in the mutual position of space, but the strength at the joint is not only affected by weld quality, the geometric shape, the force, the size, and the working conditions. The basic form of the joint has a docking, lap, buttons (orthogonal) and corners. In modern metal processing, compared with casting and forging process. The welding process is relatively late, but the development speed isFast.The weight of the welding structure accounts for about 45% of the steel yield, in aluminum and aluminum alloy yield, the proportion of the weld structure is also increasing.The above is about the assembly accuracy of the auxiliary electric heater, is everyone know?I hope to be helpful.