| 摘要 |
PURPOSE: To remove the dusts bonded onto a window glass without damage and clearly by vibrating a sand paper in high speed. CONSTITUTION: A sand paper with more than 400 mesh, preferably 600 to 1200 mesh is mounted on a grinder 2 such as high speed electric sanding machine and so forth. After mounted sand paper 1 is touched onto a dirty part, a grinder is operated to vibrate the sand paper in high speed. As the sand paper vibrates in high speed, even if it touches to window glass after its removing the dust perfectly, pressure added onto the window glass is extremely low. Therefore, the surface of the window glass is no damage, and only the dusts can be removed. |
