1. When welding the nut, the nut moves against the original direction.
In this case, the tooling can be made, for example: first screw the small rod into the inner hole of the nut, weld the small rod to the plate, and then put the nut on the small rod for welding, if it is a positioning tooling, it still cannot be To deal with the problem that the nut violates the original position, it can be tightened or pressed with screws to fix the opposite objects together.
2. Desoldering and false welding appear in the flange welding nut.
The appearance of desoldering and fake soldering is not easy to find, and there are many uncertain factors. The welding point of the flange welding nut is high and 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 false soldering. The stability of the output of other spot welding machines and the power supply will also cause mis-welding, which requires the quality and stability of the nut factory to ensure that the solder joints are highly consistent; the output power of the spot welding machine should be stable, and if necessary, please stabilize the power supply end press.
It is worth noting that the welding method for flanged weld nuts is resistance welding. The use of electrodes or carbon dioxide maintenance welding in resistance welding is not as good as projection welding. The use of general electrodes can be completely replaced by carbon dioxide maintenance welding, carbon dioxide maintenance welding has high efficiency, low cost and good quality.
The flange welding nut parameters depend on the fusion size of the weld, and the welding parameters are adjusted according to the fusion size until the shortcomings are eliminated. Of course, the welding quality is related to the pre-welding treatment, whether there are impurities or oil stains on the welding surface. Due to the high temperature, the connection parts will be deformed and cannot be disassembled, and some shiny metals cannot be welded by ordinary methods, such as aluminum, magnesium, etc., which require gas welding or argon arc welding, and require high processing technology and precision.
