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前言优质快速切割,是近几年来发展起来的一项新工艺。它是在普通氧气切割的基础上,应用空气动力学的超音速喷管原理来提高切割氧流的出口速度和圆柱度,使高速氧流激烈氧化切口的燃烧反应区,并强烈冲刷切口的氧化熔渣,从而使切割速度和切口光洁度得到显著提高。优质快速切割的关键在于割咀。自76年初开始,我们在毛主席“洋为中用”的光辉思想指引下,在上级党委的领导下及兄弟单位的大力支持下,对割咀进行了研究。我们试
Foreword High-quality, fast cutting is a new process developed in recent years. On the basis of ordinary oxygen cutting, the aerodynamic supersonic nozzle principle is used to improve the exit velocity and cylindricity of the cutting oxygen flow so that the high-speed oxygen flow intensely oxidizes the combustion reaction zone of the incision and strongly scours the oxidation of the incision Slag, so that the cutting speed and cutting finish is significantly improved. The key to high quality, fast cutting is cutting the nozzle. Since the beginning of the 76th, under the guidance of Chairman Mao’s brilliant idea of “Westernization”, we conducted a study of cutting Tsui under the leadership of the higher Party committee and the vigorous support of our fraternal units. Let’s try