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随着科学的不断发展,金相显微鏡已在各工厂和科学研究单位得到广泛的应用,而成为金屬材料檢驗分析不可缺少的工具。在分析檢驗中,經常要把显微鏡配成标准倍数来进行观察。如測量脫炭层、評定晶粒度及非金属夹杂物等都需要放大100倍,而对某些金相組織的鉴別則要求放大400或500倍。目前在国內各工厂和研究部門所用的金相显微鏡型式很多,放大倍数也不一致。以100倍为例,很多金相显微镜不是恰好放大100倍整数,而是放大90
With the continuous development of science, metallurgical microscopes have been widely used in various factories and scientific research units, and become an indispensable tool for the inspection and analysis of metal materials. In the analysis test, often the microscope should be dubbed standard multiples to observe. Such as measuring the decarbonization layer, the assessment of grain size and non-metallic inclusions need to enlarge 100 times, while the identification of some of the microstructure is required to enlarge 400 or 500 times. Currently used in various factories and research departments of metallurgical microscope type, magnification is not the same. Take 100 times as an example, many metallurgical microscopes do not just magnify a factor of 100, but enlarge it by 90