Sanding Solution for Sponge Sandpaper

Sponge sandpaper is the main tool for grinding. It is a grinding and cutting polishing tool that coats a layer of resin binder on the elastic sponge body, and plants high-quality sand on it through static electricity. It has technical parameters, and the use of sponge sandpaper must be within the allowable range of technical parameters. Overloading will greatly shorten the life of sponge sandpaper. It is very effective for polishing various mobile phone shells, also known as mobile phone shell sandpaper. The factory strives for excellence and strict quality control for its products.

If the sandpaper is adhered to a high-speed rotating disc, special machinery, or portable machine for operation, it is mostly used for the polishing of hard and brittle paint types. At the same time, in order to guarantee the quality of the sandpaper's operation, the tool to be polished should be tested before polishing.

Causes and influencing factors of burning caused by sponge sandpaper

During pneumatic grinding, due to the instantaneous high temperature in the grinding area, the structure of the part surface undergoes local changes and forms oxidation discoloration on certain parts of the surface. This phenomenon is called grinding burn. According to the different appearance of burns, they can be divided into comprehensive burns, patchy burns, uniform streak burns, periodic streak burns, etc. According to the depth of the burn, it can be divided into shallow burns, medium burns, and deep burns.

The most common are uniform or periodic streak burns. Since burns often have oxidative effects on the surface and form an oxide film, the degree of burns can be judged based on the surface color. Generally, burns become whiter, yellower, browner, and purpler in order of increasing severity. The temperature during grinding affects the occurrence of grinding burns, so it should be considered from the selection of the grinding fluid and the pneumatic grinding machine speed.

Impact of grinding burns caused by sponge sandpaper on workpieces

Surface burns damage the surface structure of the workpiece and cause oxidation and degradation, which easily leads to surface corrosion and greatly affects the performance and service life of the workpiece. Therefore, burn is a quality indicator strictly controlled in machining.

Solutions to grinding burns caused by sponge sandpaper

Adjust the speed of the pneumatic grinding machine, reduce the contact time between the sponge sandpaper and the workpiece surface, choose the sponge sandpaper abrasive reasonably, choose the appropriate amount of grinding, inspect the sponge sandpaper to check whether the sand surface is flat, and whether the abrasive is sufficient to support grinding. The operator should strictly follow the process requirements.

Liyuan Taishan has 9 world-class production lines, fully automated warehouses, laboratories, and application laboratories equipped with high-tech testing instruments such as electronic microscopes and thermal analyzers, leading the industry with innovative, stable quality, and production efficiency. Liyuan Taishan has 20 engineers, more than 40 utility model patents, and 10 invention patents. Our products are exported to more than 50 countries in Europe, North America, Africa, the Middle East, Southeast Asia, etc. Liyuan Taishan has become a long-term partner of many internationally renowned companies. Welcome to inquire!