Consumable electrode inert-gas shielded welding conductive nozzle

Abstract

The invention discloses a consumable electrode inert-gas shielded welding conductive nozzle which comprises a nozzle main body, a first through hole is formed in the middle of the nozzle main body, a high-temperature resisting insulation nozzle and a heating component are also arranged in the nozzle main body, the heating component is arranged at a welding-stick input section of the first through hole, and the high-temperature resisting insulation nozzle is arranged at a welding-stick output section of the first through hole. According to the consumable electrode inert-gas shielded welding conductive nozzle, due to the fact that the heating component is arranged, the heating component can preheat welding sticks; compared with an conductive nozzle in the prior art, the consumable electrode inert-gas shielded welding conductive nozzle can reduce current intensity properly and is beneficial to reducing spontaneous heating temperature of the nozzle main body under the same welding condition. According to the consumable electrode inert-gas shielded welding conductive nozzle, under the condition that the traditional dried elongation length is not changed, the distance between the conductive portion of the welding sticks and a workpiece contact point is lengthened, and the stability of high-speed welding is improved.

Description

technical field [0001] The invention relates to the field of welding equipment, in particular to a conductive tip. Background technique [0002] A through hole is drilled in the middle of the existing MIG welding contact tip, and the welding wire passes through the through hole, and the inner wall of the through hole contacts and conducts electricity with the welding wire. During welding, the MIG welding wire is sent out from the hole of the contact tip. The MIG welding wire conducts electricity through the inner wall of the contact tip to become the positive / negative pole, the workpiece becomes the negative / positive pole, and the welding wire contacts the workpiece to generate an arc. While the welding wire generates an arc to melt the workpiece, it also self-melts to form a build-up weld bead. [0003] In the process of realizing the present invention, the inventors found that in the prior art, the welding speed and welding quality of MIG welding cannot be improved stabl...

AI Technical Summary

Problems solved by technology

The distance between the nozzle and the workpiece is shortened, resulting in unclear welding line of sight, which can easily cause poor weld bead formation

At the same time, the greater the current, the greater the heat generated by the contact tip, the temperature of the contact tip is too high, and the service life will be shortened

Also, it can cause spatter to stick or clog nozzles, affecting gas flow

Images