The stainless steel ball end refers to the end of the rod and needs to be operated according to specifications during the welding process. In actual operation, the strength of the welded joint may be insufficient. The analysis of this phenomenon mainly includes two reasons: 1. The preheating method is unreasonable; 2. The steel bar and the screw end rod axis are inconsistent.
So what kind of measures should be taken to prevent such a situation? First, since the diameter of the stainless steel spherical rod end is thicker than that of the reinforcing steel, it requires a lot of heat. Therefore, it is recommended to preheat the screw end rod so that both of them reach the temperature required for the flash at the same time and reduce the elongation. The second step is to properly raise the electrodes on one side of the steel bar to ensure that the axes are the same.
In practical applications, stainless steel spherical rod end bearings are very sensitive to temperature changes, such as spalling, indentation, rust, cracks, wear, etc., which are reflected in the vibration measurement of the rod end joint bearing, so by using a special rod end The joint bearing vibration measuring device (frequency analyzer, etc.) can measure the magnitude of the vibration, and the specific situation of the abnormality cannot be inferred by the frequency division.