一、引言随着石油化工以及煤的气化等新型能量转换工业的发展,研究高温混合气体腐蚀已成为日益紧迫的需要。要阐明在这些复杂混合气体高温侵蚀环境下金属和合金的腐蚀规律,首先要测定在这些环境下金属腐蚀的速度。为此,我们研制了高温混合气体腐蚀试验装置,使它能够同时对三只试样进行腐蚀并自动称量,以测定和比较不同试样的腐蚀速度。而一般手动的、单点的天平称重法就不能满足系统测试的要求,因为这种方法虽然直观可靠,不需要复杂的仪器,但试验周期长、测量较麻烦,试验用的各种材料耗费较大、测定时间长。如常用的光点反射式天平由于高温气流的作用,称量时光点不断摆 I. INTRODUCTION With the development of new energy conversion industries such as petrochemicals and coal gasification, it has become an increasingly urgent need to study the corrosion of high-temperature mixed gases. To elucidate the corrosion behavior of metals and alloys under the conditions of high temperature attack of these complex gas mixtures, it is first necessary to determine the rate of metal corrosion in these environments. To this end, we have developed a high temperature gas mixture corrosion test device that enables it to simultaneously etch three samples and automatically weighed to determine and compare the corrosion rate of different samples. The general manual, single-point balance weighing method can not meet the requirements of system testing, because this method is intuitive and reliable, does not require complex instruments, but the test cycle is long, the measurement is more cumbersome, the test of various materials used Large, long measuring time. As commonly used spot reflective balance because of the role of high temperature air flow, weighing time points constantly put