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在制备金相试样过程中,我们用市售的人造金钢石研磨膏和表1所列自制研磨膏,采用湿磨法制备试样,效果较好。 1 研磨膏的制法将表1所列研磨膏原料和所需的粒度混合后,加热至80～90℃熔化搅拌成研磨膏,用其水溶液抛光。 2 抛光方法取金相试样,在M-2型金相试样预磨机上,先320#、后600#水砂纸预磨,然后用上述两种研磨膏在抛光机上进行抛光。抛光织物以细呢料为最好。试样预磨时,流水不断地注入磨盘,砂纸被暂时
In the preparation of the metallographic sample process, we use the commercially available artificial diamond grinding paste and homemade grinding paste listed in Table 1, the wet grinding method to prepare the sample, the better. Preparation of a mill paste The mill base ingredients listed in Table 1 were mixed with the desired particle size, heated to 80-90 ° C, melted and stirred to form a milled paste, and polished with an aqueous solution. 2 polishing method Take the metallographic sample, in the M-2 metallographic sample pre-mill, the first 320 #, after 600 # water sandpaper pre-grinding, and then with the two kinds of abrasive paste polishing machine. Polished fabric to fine material is the best. Pre-grinding the sample, the water constantly injected into the disc, sandpaper was temporary