How To Buff and Polish Ray Dobbins（如何迷和波兰雷Dobbins）.pdf

CASWELL Inc © 1999 Caswell Inc. 5688 Tellier Rd, Newark NY 14513 Phone - (315) 33 1-5141 Fax - (315) 597-1457 sales@ An Introduction to Buffing Polishing Buffing and polishing using wheels and compounds is somewhat like using wet and dry sanding paper, only much faster. Instead of using elbow grease you will be using the power and speed of an electric motor. The edge, or face, of the wheel is the sanding block, which carries a thin layer of compound which is the sandpaper. Varying types of wheel are available, and the different grades of compound are scaled similar to sandpaper. The compounds are made from a wax substance which has the different abrasive powders added to it. When this hard block is applied to the edge of a spinning buffing wheel, the heat from the friction melts the wax, and both wax and abrasive are applied in a thin slick to the face of the wheel. The object ive of buffing and polishing is to make a rough surface into a smooth one and, of course, each work piece will be in a different condition, so will need different procedures. Imagine the surface magnified thousands of times, it will look like jagged mountains and valleys. By repeated abrasion, you are going to wear down those mountains until they are old, soft, rolling hills! Then they will not dissipate the light, but reflect it. It is the reflection that makes the buffed part appear shiny. Tricks of the Trade Repairing small dents. Sand the inside of the part with emery paper. This will show you exactly where the dent is. Using a piece of end grain wood as a block, gently beat out the dent with a hammer. Cleaning your buffing wheels. Take the blade from an old rough cut l