Mill maintenance

If the impeller of the rivet head is worn by pressing the hub body and impeller surfacing by welding, so that wear of the rivet head back to the normal state.
Oil machine holes on the fatigue crack prone situations, can not used the entire root new electrode for welding repair cracks, but in line with the impeller shaft Centrosymmetric carried the rest of the crack at welding electrodes remain there, and then a new patch electrode symmetrical rivet hole cracks, the rest of the weld after welding Strip with symmetrical rivet welding repair as long as the rest of the time, in order to ensure equal weight up welding. If symmetrical rivet holes should be free of cracks electrode stack Welding in here, used to offset symmetrical rivet holes fill welding crack at new weight. According to this method of welding symmetrical oil expeller can repair cracks. Simple impeller balancing test, the method is also very simple. Support from the impeller by hand struck so gently rotate, reach a balanced place will stop To the lowest point and swing around. If emphasis on the impeller in the opposite spot, adding weight to make it balance, or rubbed off with a grinder impeller welding marks emphasis, But also to achieve balance, so you can put the fan repaired for normal work. Note that the fan can not be used during repair welding random spot The welding marks left to the impeller, fan impeller to avoid affecting the balance, reach the purpose of repair, resulting in greater losses.