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Welding Technique of Welding Wire for Stainless Steel Medium Plate

2023-01-05 17:54:54
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For the stainless steel medium plate, the welding method used is generally a low carbon duplex austenite welding process. In terms of step mode, it is generally divided into two major steps. One step is manual tungsten arc welding, and the other step is pickling and passivation treatment of weld surface. The basic process is to prepare the welded joint first. Generally, the welding wire with the same material as the stainless steel plate should be selected as the filler of the metal. Then, one side welding and one side cold water treatment shall be carried out, and the cold water shall be poured all the way to the weld position.

The main advantage of this welding method is that the low temperature welding will lead to the stability of the unstable factors inside the stainless steel plate and prevent the occurrence of brittle transition. At the same time, keep the temperature low, and there will be no intergranular corrosion or hot cracks. The so-called capacity improvement, including corrosion resistance, oxidation resistance and service life, will be better improved and enhanced.

In this process, the welding temperature is generally controlled below 80 ℃. The required welding speed is more than 45 to 50 centimeters per minute. In this process, we should pay attention to the moderation of multiple links. In addition to the speed and temperature, the width depth ratio of the required welding shall also be kept between 1.5 to 1 and 2 to 1, and the thickness of the weldment shall be less than or equal to 12mm. The next step is the passivation treatment of the weld surface, mainly pickling and passivation treatment. After this step, the ability of the stainless steel plate to lift itself can be guaranteed.

The required welding speed is more than 45 to 50 centimeters per minute. In this process, we should pay attention to the moderation of multiple links. In addition to the speed and temperature, the width depth ratio of the required welding shall also be kept between 1.5 to 1 and 2 to 1, and the thickness of the weldment shall be less than or equal to 12mm. The next step is the passivation treatment of the weld surface, mainly pickling and passivation treatment. After this step, the ability of the stainless steel plate to lift itself can be guaranteed.

The first thing to choose this welding method is the low temperature welding condition, which will lead to the stability of the unstable elements inside the stainless steel plate and avoid the occurrence of brittle changes.


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