溶解在冷却液中气体的浓度对切削加工过程有着明显的影响。然而,长期以来人们对此没有进行充分的研究。为了弄清这个问题,苏联工程师们近来在钻削时采用控制氧气含量的液体作为冷却液,进行了一系列试验。试验时,他们把钻头和工件放在严格密封的容器内,冷却液供应系统也加以气密封。如果要降低冷却液中氧气的含量时,就吹入氩气或氮气;如果要提高 The concentration of gas dissolved in the coolant has a significant effect on the cutting process. However, people have not done enough research for a long time. To understand this issue, Soviet engineers recently conducted a series of tests using a liquid that controls the oxygen content as a coolant during drilling. During the test, they placed the drill bit and the workpiece in a tightly sealed container, and the coolant supply system was also hermetically sealed. If you want to reduce the content of oxygen in the coolant, it is blown with argon or nitrogen; if you want to improve