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目镜测微标尺是进行显微测量的有力工具,而许多金相显微镜并未附有此项附件。我厂本着自力更生的精种,根据照相复印原理,用色盲片复制成一种胶质的测微标尺,解决了金相观察时的测量问题。此种标尺,经实践证明,效果良好,可作为代用品应用于生产,现介绍如下,供大家参考。底样的制备将布氏硬度计上的测微标尺(或其它测微标尺,其精度越高越好)从筒内取出,如果刻痕不够清晰,可用制图墨汁涂于刻痕上,待干后用棉花轻轻擦去玻璃表面的墨汁,即成一张清晰的原始底样。感光材料选反选用色盲感光胶片作为感光材料,因为它感光慢,银粒细,反差强,分辨力高,最适宜复印。此外,也可用市售的24×36毫米的文件翻拍感
The eyepiece micrometer is a powerful tool for microscopic measurements, and many metallurgical microscopes do not have this attachment. I plant in the spirit of self-reliance essence, according to the principle of photographic copying, with color-blind copy of a microgram microgroove to solve the metallographic observation of the measurement problems. Such rulers, proven by practice, the effect is good, can be used as a substitute for production, are presented below, for your reference. Preparation of the bottom sample Brinell hardness tester micrometer scale (or other micrometer scale, the higher the accuracy of the better) removed from the tube, if the score is not clear enough, available chart ink coated on the score to be dry Gently wipe the ink on the surface of the glass with cotton to create a clear original base. Anti-sensitive material selection Anti-color-blind photosensitive film as a photosensitive material, because it is sensitive to light, silver fine, strong contrast, high resolution, the most suitable copy. In addition, you can also use commercially available 24 × 36 mm file remake