Why is the hottest plasma cutting machine better t

2022-08-05
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Why is plasma cutting machine better than laser cutting machine

cutting machine mainly includes flame cutting, plasma cutting and laser cutting. According to the difference of B1 level test report requirements and market price, the three cutting methods currently occupy a certain market. The technical and economic comparison is as follows:

flame cutting is affected by air pressure, cutting nozzle height, preheating time and other factors, The deformation scale of the whole cutting material is large, which can not meet the needs of high-precision cutting, and the cutting speed is low. At the same time, it is difficult to meet the needs of unmanned operation because it needs preheating before cutting and takes time

plasma cutting has the characteristics of fast cutting speed and wide range. It is suitable for cutting low-thickness metal plates and a variety of non-metallic materials. The maximum cutting speed can reach 10m/min, which is 10 times that of flame cutting. Underwater cutting can eliminate the noise, dust, harmful gas and arc light generated during cutting, which is conducive to environmental protection requirements. At present, with the maturity of high-power plasma cutting technology, the cutting thickness can reach 130mm. The high-power transmission system using water jet technology: there are mainly two kinds of plasma cutting in the transmission part of electronic universal experimental machine, which has made the cutting quality close to the lower limit of laser cutting accuracy (± 0.2mm)

because the laser cutting machine is expensive, and currently it is only suitable for cutting thin plates (usually the drilling time for thick plates is long), while the precision of the fine plasma cutting machine can reach the lower limit of laser cutting, and the cutting surface quality is similar, but the cutting cost is much lower than the laser cutting, about 1/3 of it, and the maximum cutting thickness can reach 12mm. Therefore, the fine plasma cutting machine is used to replace the expensive laser cutting machine, It is beneficial to implement high-speed fine cutting for medium and thin plates with large consumption in the most economical way. In addition, the combination of NC plasma cutting and automatic nesting programming software can improve the material utilization rate by 5% ~ 10%. If 20million tons of steel are cut annually, 1 ~ 2million tons of steel can be saved annually, worth billions of yuan. Therefore, there has been a development trend of replacing flame cutting machine and laser cutting machine with numerical control plasma cutting machine in industrial developed countries

the summary data are as follows:

NC plasma cutting machine has high cost performance. For example, the price of laser cutting machine for cutting 30mm thick ordinary carbon steel is 2~3 times higher than that of some expert members of Shandong Branch of NC plasma cutting materials Institute participating in the activity. The thicker the plate, the more obvious the advantage of NC plasma cutting machine

NC fine plasma can be programmed with programming software to improve the material utilization rate by 5%~10%, saving 1million ~ 2million tons of steel and hundreds of millions of yuan each year

the cutting accuracy of the fine plasma cutting machine can reach the lower limit of laser cutting (± 0.2mm), and the cutting surface quality is similar, so it is generally unnecessary to finish machining. The thicker the cut plate, the more detailed the following information can reflect the advantages. (end)

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