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平晶是检验块规、万能量具及其他精密量具工作表面平直度的必不可缺少的量具。由于它的材料是用特种玻璃制成的,技术要求也很高(1级精度的平晶工作面平直度为±0.00003公厘,2级平晶为±0.0001公厘),所以需要经常对工作面划伤的平晶进行修理。据统计,用人工修理一块平晶大约需要8～12小时(包括研磨和抛光),这样不仅是工作效率低,而且操作者要花费很大的劳动量。为了迎接技术革命,结合我厂生产上的需要,我厂中心计量室蘆冠英、郭金堂同志设计
Flat crystal is the test block, universal measuring tools and other precision measuring tools work surface flatness of the indispensable measuring tools. Because of its material is made of special glass, the technical requirements are also high (flat grade 1 precision flat surface ± 0.00003 mm flatness, 2 flat crystal ± 0.0001 mm), so the need for regular Face scratched crystal repair. According to statistics, it takes about 8 to 12 hours (including grinding and polishing) to manually repair a flat crystal, which is not only inefficient but also takes a lot of labor. In order to meet the technical revolution, combined with the needs of our factory production, I Factory Center Measurement Room Lu Guan Ying, Comrade Guo Jintang design