After the sample with small, irregular shape and difficult to hold by hand is fixed by the mould and cold-inlay forming, the automatic metallographic sample grinding and polishing machine YM2 is used instead of the manual grinding and polishing processes, it can hold 4 samples at a time. After that, the metallographic analysis (maximum 1000 times, measuring sample size, film thickness, film layering and number of tracks, flat line R angle size, arc, eccentricity between conductor and film, etc.) can be carried out more conveniently and directly by microscope, slice analysis, grain size analysis, etc. . All measurement data and analysis results are saved in the form of data files, and can be transferred to the computer at any time, access to raw data, and automatic output image test results report.

Note: average grain size of metal: GB 6934-2002

Reference Standards: GB/T 6394-2002, GB 4335-84, GB 6394-86, ASTM E1181-87, GB/T 3246.1-2000

Measurement data: average intercept of grain, average cross-sectional area of grain

Analysis data: nominal grain diameter, Vritz diameter, unit volume grain size, grain size grade index

Measurement methods: comparison method, area method, cut-point method (straight-line cut-point, single-circle cut-point and three-circle cut-point method) , grain boundary reconstruction method