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我厂生产精密金属线纹尺,在精加工过程中,采用千分扭簧表在精密测量平板上进行测量其不直度、不平行度。测量表座采用铸铁制成,故铸铁与铸铁摩擦,磨损很快。为保证较高的测量精度,每次测量前均要十分致细地用汽油、酒精多次擦拭平板和表座底面。这样一块新刮研的平板使用半年至一年左右,因磨损精度很快丧失,个别严重时连刮研点都磨损了。为此,我们用四聚氟乙烯板(在铁板上镀铜粒再喷涂上一层四聚氟乙烯制成)按表底座尺寸做成两条,用502胶粘牢,然后
I plant the production of precision metal line Wen Rui, in the finishing process, the use of thousands of torsion spring table in the precision measurement of flat to measure its not straight, not parallel. Measuring table made of cast iron, cast iron and cast iron friction, wear quickly. In order to ensure a high measurement accuracy, each measurement must be very careful with gasoline, alcohol wipe plate and table bottom repeatedly. Such a new scraping the use of flat panel about six months to a year or so, due to the loss of wear and tear quickly lost, even in serious cases even scraping the point of wear and tear. To this end, we use tetrafluoroethylene plate (copper plate on the iron plate and then sprayed with a layer of PTFE) made by the table base size made of two, with 502 glue firmly, and then