现介绍一种简便易行、经济、适用范围广的金相试样锒片方法,此法所用的材料和器具为: (1) 牙托粉;(2)牙托水(快速自凝); (3) 硬塑料管(内径15～20mm);(4)移液管;(5)玻璃板。操作工艺:先把硬塑料管锯成约20mm的小段,一端用砂纸磨平后放在玻璃板上,然后把用砂轮磨平的试样放入塑料管内,再加入牙托粉,其盈以能固定住试样为准,最后用移液管滴入牙托水直至牙托粉全部湿润为止。放置数小时后,将锒块从玻璃板上轻轻敲下, Here is a simple and easy to use, economical, wide range of metallographic sample sheet method, the method used materials and apparatus are: (1) dental care powder; (2) (3) hard plastic tube (diameter 15 ~ 20mm); (4) pipette; Operating process: The first rigid plastic pipe sawing into small pieces of about 20mm, one end polished with sandpaper on the glass, and then polished with a grinding wheel into the sample tube, and then add the trays powder, the surplus to The sample can be fixed to prevail, and finally dropped into the trays with pipette water until the trainer powder all wet so far. After standing for a few hours, tap the nibs gently from the glass,