The fan impeller is studied by electrode arc welding. Considering the adverse effect of tungsten argon arc welding on the impeller blade welding, the electrode arc welding is used instead of the tungsten argon arc welding, mainly considering that the welding speed is fast and the heat affected zone is small, and the welding quality is ensured. The electrode arc welding is beneficial to the deformation of the impeller. Research on welding process control of fan impeller. In order to better control the sharp rise of the welding temperature and reduce the deformation of the impeller, the following welding process measures are determined: First, the welding sequence is guaranteed. According to the distribution of the impeller, the sequence of welding and welding is determined by sequential welding, symmetrical welding and intermittent welding. The front and rear discs of the impeller can be uniformly shrunk, and the thermal stress can be prevented from being concentrated and the welding deformation can be reduced. The sequential welding is based on the distribution and direction of the stress of the impeller during welding, and the impeller bottom plate and the hub are welded according to the requirements of the impeller construction sequence. According to the principle of welding the inner and the inner welding, the root of the welding blade and the central hub are determined. When the connection is made, the stress generated by the blade in a free state does not affect the deformation of the blade. The Huaneng rock wool board then welds the bottom of the blade to a length of about 50-60 mm. At this time, the blade has been welded to the bottom plate of the impeller, and the stress has been generated, but the front end is in a free state and will not have a large influence. The subsequent welding is in accordance with this principle, from the inside to the outside, segmented. For symmetrical welding, when welding a blade, after welding one weld, one weld should be selected for welding, or two welders should weld the double weld at the opposite position. This facilitates the uniform distribution of the temperature field, so that heat is not concentrated on one side of the blade, causing thermal stress concentration in the side region to cause greater deformation. 5 G Round Shape Jar,As Jars,Cosmetic Acrylic Jar,Cream Care Jar Zhejiang Xinlei Packaging.Co.Ltd.(China) , https://www.xinleipack.com