| 摘要 |
PURPOSE: A grinding stone fabricating method is provided to naturally grind an object with simplifying a manufacturing process and reducing manufacturing time thereof by continuously discharging super-hard particles. CONSTITUTION: Expanding stone powder 3 to 10 weight percent, fiber powder 3 to 10 weight percent, non-active foam agent 5 to 10 weight percent, thermosetting resin 15 to 25 weight percent are mixed with 100 weight percent of grindstone powder. Then, the mixture is filled in a mold. After sealing the mold, the mold is preheated for 1 to 2 hours at the temperature about 60 to 90°C. Then, the mold is heated for 6 to 10 hours by increasing the temperature up to 60 to 90°C. After that, the mold is cooled for 6 to 10 hours until the temperature of the mold reaches the normal temperature.
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