For example, the effect of combustion-supporting can be achieved by oxygen. When cutting low carbon steel, oxygen is often used as an auxiliary gas, and the heat of iron-oxygen combustion reaction is used to promote the cutting process. The cutting speed is fast, the cutting quality is good, and slag-free cutting can be obtained. The higher the gas purity, the better the cutting quality. The oxygen purity of the cut low-carbon steel plate is at least 99.6%. It is suggested that the oxygen purity should be above 99.9% when cutting carbon steel plates above12 mm. ..
When cutting stainless steel plate, if nitrogen is used as auxiliary gas, the purity of nitrogen should reach above 99.6%. The higher the purity, the better the slice quality. If the purity of cutting gas is not high, it will not only affect the cutting quality, but also pollute the lens. The oxygen purity has a certain influence on the cutting speed, and the oxygen purity decreases by 2% when studying the surface. The cutting speed will be reduced by 50%.
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