1. When welding the nut, the nut moves against the original direction.
In this case, you can make tooling, for example: first screw the small rod into the inner hole of the nut, weld the small rod to the flat plate, and then put the nut on the small rod for welding. If it is a positioning tooling, it still cannot To deal with the problem of the nut violating its original position, it can be tightened or compressed with screws to fix the relative objects together.
2. The welding nut is desoldered and falsely welded.
The appearance of desoldering and false soldering is not easy to find, and there are many uncertain factors. The welding point of the welding nut is high or low, and the spot welding machine is to adjust the fixed current and fixed time. When the solder joint is too low, it will only cause a weak solder. The output of other spot welding machines and the stability of the power supply will also cause miswelding, which requires the quality and stability of the nut factory to ensure that the welding points are highly consistent; the output power of the spot welding machine must be stable, and please stabilize the power supply end if necessary. compressor.
It is worth noting that the welding method of the welding nut is resistance welding. The use of electrodes or carbon dioxide maintenance welding in resistance welding is not as good as the projection welding method. The use of general electrodes can be completely replaced by carbon dioxide maintenance welding, which has high efficiency, low cost and good quality.
The welding nut parameters depend on the fusion size of the weld, and the welding parameters are adjusted according to the fusion size until the defect is eliminated. Of course, the welding quality is related to the pre-welding treatment and whether there are impurities and oil stains on the welding surface. Because high temperatures will cause the connectors to deform and cannot be disassembled, some shiny metals cannot be welded by ordinary methods, such as aluminum, magnesium, etc., and require gas welding or argon arc welding, which requires high processing technology and precision.
