Welding device for low-alloy steel plate and marine steel plate

Abstract

The invention discloses a welding device for a low-alloy steel plate and a marine steel plate. The welding device structurally comprises a comprehensive welding device, a machine body, a connection block, a welding gun, a connection pipe, a placement butt-joint support frame, a base and support legs, wherein the comprehensive welding device is installed in the machine body; the bottom end of the connection block penetrates through the top of the machine body and is connected into the comprehensive welding device; the right end of the welding gun is vertically connected with the left end of thetop of the connection block; the right end of the connection block is connected into the comprehensive welding device through the connection block; the bottom of the placement butt-joint support frame is vertically connected with the top of the base; and the support legs are sequentially connected to form a rectangular structure and are arranged at the bottom of the machine body. The device fixesthe movement track of the welding gun, and in this way, the stability of welding can be improved, and then the accuracy degree of welding is increased; and meanwhile, the device roasts a welding partand the two sides of the welding part for dehumidification in a certain range, and in this way, the firmness degree of welding can be increased, and the practical value of the device is increased.

Description

technical field [0001] The invention relates to the technical field of welding treatment, in particular to a welding device for a low alloy steel plate and a ship steel plate. Background technique [0002] In shipbuilding enterprises, it is often encountered that dissimilar steels with different linear expansion coefficients are welded together, such as welding low-alloy steel plates with marine steel plates. For the welding of low-alloy steel and marine steel plates, E5015 electrodes have been used in the past. Electrode arc welding, due to the characteristics of the material itself, manual arc welding must be used during welding, the work efficiency is low, the welding operation is difficult, and the welder's labor intensity is high; because the heat input of E5015 electrode arc welding is large, and the low alloy steel plate has strength High linear expansion coefficient, so it is easy to produce welding deformation during welding, especially when welding thin plates, the...

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Problems solved by technology

[0002] In shipbuilding enterprises, it is often encountered that dissimilar steels with different linear expansion coefficients are welded together, such as welding low-alloy steel plates with marine steel plates. For the welding of low-alloy steel and marine steel plates, E5015 electrodes have been used in the past. Electrode arc welding, due to the characteristics of the material itself, manual arc welding must be used during welding, the work efficiency is low, the welding operation is difficult, and the welder's labor intensity is high; because the heat input of E5015 electrode arc welding is large, and the low alloy steel plate has strength High linear expansion coefficient, so it is easy to produce welding deformation during welding, especially when welding thin plates, there will be obvious deflection deformation, and it is difficult to correct the deformation after welding; During electrode arc welding, the overall welding quality is difficult to guarantee

[0003] At present, the welding device for low-alloy steel plate and marine steel plate does not bake and dehumidify the welding part and a certain range on both sides, which will reduce the firmness of the welding and reduce the practical value of the equipment

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