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俄罗斯的NizhnyJTagil钢公司和Sit－uimettechnology工程公司开发了一种新型真空处理方法。据称这种叫作ID脉冲真空处搜的方法可以取得DHRH和PM等脱气方法的效果。该方法的操作原理是：与常规系统使用的稳定态真空条件相反，ID工艺依靠在预选频率和振幅的脉冲真空中＊O气泡吸收
Russia’s Nizhny JTagil Steel Company and Sit-uimettechnology Engineering Corporation have developed a new vacuum treatment method. It is said that this method called ID pulse vacuum search can get the effect of degassing methods such as DHRH and PM. The operating principle of this method is that, contrary to the steady state vacuum conditions used in conventional systems, the ID process relies on * O bubble absorption in a pulsed vacuum of preselected frequency and amplitude