Single pass and single layer pulse welding method for armor plate

Abstract

The invention discloses an armored steel plate single-way and single-layer pulse welding method. The method comprises the following steps: (S1) preparation before welding: welding materials are cleaned; welding equipment is arranged; welding parameters are set; and after a welding power supply is electrified or reset, the system initialization is performed to judge if a wire way, a gas way and a water way are normal; (S2) arc striking: after a welding gun switch is pressed down, protective gas is communicated; the existence of welding current is judged in the arc striking contact process; and when the current reaches a certain value, an arc striking current waveform is given; (S3) welding: after electric arc is ignited, normal welding control procedures are begun; the normal pulse current waveform is periodically sent; the welding current and the welding voltage are controlled and displayed; and if the short circuit or open circuit condition is generated, respective processing procedures are begun; and the arc striking is renewed to recover a normal welding state; and (S4) when the welding gun switch is loosened, the wire feeding is stopped. The welding method is simple in operation, low in deformation, excellent in welding line formation and excellent in mechanical performance.

Description

technical field [0001] The invention relates to the field of welding, in particular to a single-pass single-layer pulse welding method for armored steel plates. Background technique [0002] In the production of armor plates, welding has become the most commonly used connection method due to the limitations of plate shapes, sizes, angles, and assembly requirements. However, the weldability of armor plate is poor, and it is difficult to be widely used due to defects such as cold cracks, welding embrittlement, and softening. The traditional welding process has the following disadvantages when welding armor plates: many procedures, long production cycle, and high labor intensity of workers; low pass rate of one-time welding, large amount of rework, resulting in poor product quality stability; and large welding deformation, which affects the quality of the product. final quality. Therefore, this field needs a simple, high-quality welding method to complete the welding of armor...

AI Technical Summary

Problems solved by technology

However, the welding performance of armor steel plates is poor, and it is difficult to be widely used due to defects such as cold cracks, welding embrittlement, and softening.

The traditional welding process has the following disadvantages when welding armor plates: many procedures, long production cycle, and high labor intensity of workers; low pass rate of one-time welding, large amount of rework, resulting in poor product quality stability; and large welding deformation, which affects the quality of the product. final quality

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