Definition of welded nuts

Definition of welded nuts

What is a welded nut?

It is a type of nut that is suitable for welding outside the nut. It is generally made of weldable material and is relatively thick and suitable for welding. Welding is equivalent to turning two separated parts into a whole, melting the metal at high temperature, mixing it together, and then cooling it. An alloy is added in the middle, and the internal component force acts on it, which is generally stronger than the parent body. The experiment of welding parameters depends on the fusion size of the weld seam, and the welding parameters are adjusted according to the fusion size until the defects are eliminated. Of course, the quality of welding is related to pre welding treatment, such as dust removal and oil stains.

It is a process in which the material of the workpiece being welded (of the same or different species) is heated, pressurized, or both are used, with or without filling materials, to achieve a permanent connection between atoms. Welding nuts are fasteners with internal threads that are used in conjunction with bolts. Mechanical parts with internal threads and used in conjunction with screws to transmit motion or power.

Tips for welding nuts:

1、 When welding the nut, the nut moves against its original orientation.

When encountering this situation, a fixture can be made, such as turning a small rod through the inner hole of the nut, welding the small rod onto the flat plate, and finally installing the nut onto the small rod for welding. If the positioning fixture still cannot handle the nut's deviation from its original orientation, screws can be used to tighten or compress it, and the opposite objects should be fixed together.

The welded nut shows false solder detachment.

The appearance of desoldering and false soldering is not easy to see. There are many uncertain factors, such as high and low solder joints for welding nuts, and spot welding machines adjust the fixed current and fixed time. When the solder joints are too low, false soldering occurs simply, and the output and power supply stability of other spot welding machines also experience false soldering. This requires the quality and stability of nut factories to ensure that the height of welding points is common; The output power of the spot welding machine needs to be stable, and if necessary, please add a voltage regulator at the power supply end.

It is worth noting that the best welding method for stamping parts to weld nuts is resistance welding. The use of welding electrodes or carbon dioxide maintenance welding is not as good as the projection welding method in resistance welding. The use of general welding rods can be completely replaced by carbon dioxide maintenance welding. Carbon dioxide maintenance welding has high efficiency, low cost, good quality, and is not simply a false welding.