在等离子弧切割时,由于紫外线的强烈辐射,致使电弧近区的氧在高温下破坏而产生臭氧。这种臭氧具有强烈的氧化能力和危害作用;医学界认为,它对人体的呼吸系统及血液循环系统等都有一定的损害。为此,对降低等离子弧切割时臭氧浓度的工艺措施,进行了以下探讨: 一是把氩气压力做为恒定值,研究在提高切割电流与氩气流量时,对臭氧浓度的影响(表1);二是把切割电流做为恒定值,研究 During the plasma arc cutting, due to the intense radiation of ultraviolet rays, oxygen in the vicinity of the arc is destroyed at high temperature to generate ozone. This ozone has a strong oxidizing power and harmful effects; the medical profession believes that it has some damage to the human respiratory system and blood circulation system. To this end, to reduce the ozone arc plasma cutting process measures, the following discussion: First, the argon pressure as a constant value to study cutting current and argon flow to improve the impact on ozone concentration (Table 1 ); Second, the cutting current as a constant value, research