金相试样用手工磨制效率低,蜡盘等方法制造工序也较复杂,我室采用砂纸机械磨制,通过四年的使用,证明效果很好,比用铜套压边固定砂纸的方法要简单可靠,装换速度大大提高。夹具的制作:将似.3D毫米铁丝或铜丝在磨盘套环上紧紧缠绕一周(如图1)。找一根两钢棒,截取 Metallographic sample by hand grinding efficiency is low, wax tray and other methods of manufacturing processes are more complex, my room using sandpaper mechanical grinding, through the use of four years to prove good, than with copper sleeve fixed sandpaper method To be simple and reliable, replacement speed greatly increased. Fixture production: Like .3 D mm wire or copper wire tightly wound in the disc ring a week (Figure 1). Find a two steel bars, interception