抄録
he test pieces were cylindrical glass blocks, and the polishing material was SeO2 powder on a pitch plate. The experiments were made to find its polishing ability and many other factors, such as pressure, temperature, abrasive density and its supplying methods. The rate of polish was measured by the amount of reflected light.
The polishing ability increased according to the pressure (540g/cm2) and temperature (10° 30°C), and the maximum of polishing ability is found at about 10g SeO2/100cc water.
In these experiments the next conditions were suitable at 20°C.
1. The density of abrasives was 10g/100cc (water).
2. The pressure of work was 10g/cm2.
The supply of abrasives was made once or twice. The matters of great importance are density of abrasives and how the pitch plate preserves abrasive grains.
