Ultrasonic-assisted and gas-shielded welding device and method adopting underwater wet method

Abstract

The invention relates to an ultrasonic-assisted and gas-shielded welding device adopting an underwater wet method. The device comprises an ultrasonic transducer, a combined welding torch, a conductive rod and an insulation sleeve. The ultrasonic transducer is connected with the combined welding torch, the ultrasonic transducer and the combined welding torch are each provided with a through hole, the through holes are communicated, and the conductive rod and the insulation sleeve are arranged in the through holes. The insulation sleeve is arranged on the radial outside of the conductive rod in a sleeving mode, and a gap is formed between the insulation sleeve and the conductive rod. The device further comprises a waterproof shell and a gas supply unit. The ultrasonic transducer is arranged in the waterproof shell which is communicated with the gap, and the waterproof shell is communicated with the gas supply unit. By means of the ultrasonic-assisted and gas-shielded welding device adopting the underwater method, the ultrasonic and shielding gas combined mode is used for underwater welding, and the effect of water pressure on electric arcs is reduced through ultrasonic; the ionization of the electric arcs is improved through the shielding gas, the stability of the electric arcs is improved, and accordingly the welding quality is enhanced.

Description

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AI Technical Summary

Benefits of technology

This patented technology uses both an ultraviolet light source (ultrasonics) and a protective gas during submerged welds that reduces impact from hydraulic pressures caused by rain or snow falling over it. By adding these techniques, this process can achieve better results compared with traditional methods without requiring much equipment like immersion lamps.

Problems solved by technology

Technological Problem: Undersea Weldings (UW) are becoming increasingly popular with advancements being developed over time. These methods have been shown effective at preventing corrosion issues caused by moisture while also enhancing their overall quality and durability. While traditional UV light sources can be harmful when exposed during operation, these techniques offer advantages like lower energy consumption compared to laser technology.

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