1results about How to "Reduce calibration process" patented technology

This utility model provides a device for spot welding a catalyst support and a nut, which can effectively control the inward shrinkage of the catalyst support and avoid deformation of the catalyst support due to uneven temperature. It includes an upper electrode and a lower electrode that cooperate with each other. The lower electrode is provided with a positioning pin, which can position the nut and the support. The upper electrode is characterized by having an inner support fixed on it, and a wear-resistant ring is fixed on the outer side of the inner support. The outer diameter of the wear-resistant ring matches the size of the catalyst support. During welding, the wear-resistant ring can support the support in the catalyst support and limit the legs of the catalyst support to prevent the legs of the catalyst support from shrinking inward.