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硬化工具钢零件在真空炉内进行气体淬火的方法，很快引起了全世界范围的关注。本文对高速气淬炉的两种新设计进行了对比：一种是在高压（５巴）下工作，另一种是具有非常高的气体流率（３．５米３／秒，等于 ７５００英尺３／分）。本文对美国标准ＡＩＳＩＤ３工具钢和 Ｍ２工具钢试件的实验结果做了详细说明，所研究的变量有：试件尺寸，装料多少，冷却速度，硬化均匀性，硬度及微观组织。从流动模拟研究的角度讨论了所观察到的现象。结论是：高压与高流率之间的优劣争论，不能只限于考虑这些参量，还必须认真考虑炉子设计对气体流动方式和因之对传热效率所产生的影响。
Hardened tool steel parts in a vacuum furnace gas quenching method, quickly aroused worldwide attention. This article compares two new designs for a high-speed gas quench furnace: one operating at high pressure (5 bar) and the other one having a very high gas flow rate (3.5 m3 / s, equal to 7500 ft 3 / min). In this paper, the experimental results of the American standard AISID3 tool steel and M2 tool steel specimen are described in detail. The studied variables are: specimen size, loading amount, cooling rate, curing uniformity, hardness and microstructure. The observed phenomena are discussed from the perspective of flow simulation. The conclusion is that the debate between the high and the high flow rate is not limited to taking these parameters into account. The design of the furnace for gas flow and its effect on heat transfer efficiency must also be carefully considered.