What precautions should be taken during the welding process of welding nuts

Release time:2025-03-29    Click:13

  Welding nuts are not easy to loosen, but there are still some things to pay attention to during use in order to connect the welding nuts. Welding is the process of combining two separate parts into a single unit, melting the metal at high temperature and mixing it together before cooling. The center is filled with alloy, and the internal force is due to molecular forces, which are slightly greater than the usual matrix. Therefore, the application of welding nuts is very extensive.

  1. Choose a power supply with straight external characteristics, and use positive polarity (welding wire connected to negative polarity) for DC.

  2. Usually suitable for welding thin plates below 6mm, it has the characteristics of beautiful weld formation and small welding deformation.

  3. Maintain the gas as argon with a purity of 99.99%. When the welding current is 50-150A, the argon flow rate is 8-10L/min, and when the current is 150-250A, the argon flow rate is 12-15L/min.

  4. The optimal length for tungsten electrodes from gas nozzles is 4-5mm. In areas with poor shielding properties such as corner welding, it is 2-3mm, and in areas with deep grooves, it is 5-6mm. The distance from the nozzle to the job is usually not more than 15mm.

  5. To avoid the appearance of welding pores, any rust, oil stains, etc. on the welding area must be cleaned thoroughly.

  6. When welding ordinary steel, it is best to use a welding arc length of 2-4mm, while when welding stainless steel, it is best to use a welding arc length of 1-3mm. If it is too long, the maintenance function will be poor.

  7. In order to maintain the welding pool well with argon gas and facilitate welding operations, the centerline of the tungsten electrode should usually maintain an angle of 80-85 ° with the workpiece at the welding point, and the angle between the filler wire and the outer surface of the workpiece should be as small as possible, usually around 10 °.

  8. In order to maintain the welding pool well with argon gas and facilitate welding operations, the centerline of the tungsten electrode should usually maintain an angle of 80-85 ° with the workpiece at the welding point, and the angle between the filler wire and the outer surface of the workpiece should be as small as possible, usually around 10 °.

  9. Windproof and ventilation. In windy areas, it is recommended to adopt the method of blocking nets, while in indoor areas, appropriate ventilation methods should be adopted.



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