How does cutting oxygen affect gas flame cutting?

There are many factors that affect the gas flame cutting process, in which cutting oxygen flow plays a vital role in gas flame cutting. Cutting the oxygen stream requires both burning of the metal and blowing of the oxides formed by the combustion from the slit. Therefore, the purity, flow rate, flow rate and shape of the oxygen flow of the cutting oxygen have an important influence on the gas cutting quality and the cutting speed. Wuhan Leading Navigation CNC Technology Co., Ltd. summarizes as follows:
1. Purity of cutting oxygen <br> The purity of oxygen is an important factor affecting the gas cutting process and quality. The low purity of oxygen not only greatly reduces the cutting speed, but also makes the cutting surface rough, the lower edge of the slit is slag, and the consumption of oxygen will also increase. Oxygen purity is reduced from 99.5% to 98%, ie 1.5%, cutting speed is reduced by 25%, and oxygen consumption is increased by 50%. It is generally believed that the purity of oxygen is less than 95%, which is not conducive to gas cutting; to obtain a gas-cutting cut without sticking slag, the purity of oxygen needs to be above 99.6%.
2. Cutting oxygen flow <br> When cutting a steel plate with a thickness of 12 mm, as the oxygen flow rate increases, the cutting speed gradually increases, and the cutting quality increases, but the value corresponding to a certain limit value decreases. Therefore, there is an optimum oxygen flow value for each steel plate thickness. When cutting at the optimal oxygen flow value state, not only the cutting speed is the highest, but also the cutting effect is the best.
3. Cutting oxygen pressure <br> As the cutting oxygen pressure increases, the oxygen flow rate increases accordingly, so the thickness of the plate that can be cut increases. However, the pressure is increased to a certain value, the thickness of the cuttable is also maximized, and the pressure is increased, and the thickness of the cuttable is decreased. The effect of cutting oxygen pressure on the cutting speed is roughly the same as the principle of cutting oxygen flow.
Under normal circumstances, when cutting with a common cutting nozzle, the cutting speed increases as the pressure increases, but the cutting speed decreases when the pressure exceeds 0.3MP. Continue to increase the pressure, not only cutting The speed is reduced, the incision is also widened, and the section of the incision is rougher. When cutting with a diffusion nozzle, if the cutting oxygen pressure meets the design pressure of the cutting nozzle, the cutting speed will increase as the flow rate and momentum of the cutting oxygen flow increase as the pressure increases.
In addition to the above mentioned factors, there are many factors affecting the final cutting quality during the gas flame cutting process, such as the power of the preheated flame, the composition of the metal being cut, the performance, the surface state and the initial temperature. Only by considering various factors can we make the cutting effect more perfect!
Wuhan Linghang CNC Technology Co., Ltd. specializes in producing CNC flame cutting machine , CNC plasma cutting machine , welcome to visit the company website for detailed product information. Website: ; ! ! !
Wuhan Linghang CNC Technology Co., Ltd. specializes in the production and sales of CNC cutting machine, laser cutting machine, gantry CNC cutting machine, cantilever CNC cutting machine, portable CNC cutting machine, desktop CNC cutting machine, desktop advertising CNC cutting machine, underwater plasma cutting Machine, CNC intersecting wire cutting machine, multi-head and straight CNC cutting machine, CNC system, nesting software, servo motor and reducer, CNC system upgrade and transformation, domestic and imported plasma power cutting system and other related products.
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