Principle and influencing factors of electrostatic sand planting of sand belts
I. Principle
Electrostatic sand planting of sand belts is a common surface coating technology. Through the principle of electrostatic adsorption, particles such as grinding quartz sand are mounted on the surface of the sand belt to form sand belt abrasives.
The principle is as follows:
1. Electrostatic adsorption principle: The sand grains are adhered to the sand belt by the adsorption effect of the static charge on the surface of the sand belt.
2. Fluid mechanics principle: After the electrostatic adsorption of the sand belt surface is completed, the sand grains will continuously rub against the surface of the workpiece as the sand belt rotates during work, thereby achieving the effect of grinding.
II. Influencing factors
1. Physical properties of sand material: The physical properties of sand material directly affect the effect of electrostatic sand planting. For example, the dispersion, particle size, shape, etc. of the sand material affect the effect of electrostatic sand planting.
2. Sand belt material: The quality and manufacturing process of the sand belt material also have a decisive influence on the effect of electrostatic sand planting of the sand belt. The surface resistivity of the sand belt, the flatness of the sand belt, and the quality of the belt surface protective layer will affect the effect of electrostatic sand planting.
3. Belt speed: The belt speed is also one of the factors that affect the electrostatic sanding effect of the belt. Too fast or too slow belt speed will affect the accumulation of static electricity on the belt surface, so that the sand grains cannot adhere to the belt surface.
4. Belt tension: Insufficient belt tension will cause the belt surface to not adhere firmly, thus affecting the electrostatic sanding effect of the belt.
5. Electrostatic field strength: The stronger the electrostatic field strength, the better the adsorption effect of the sand. However, if the electrostatic field strength is too strong, the sand grains will overlap and affect the uniformity of the belt surface.
The above factors all have an impact on the electrostatic sanding effect of the belt. How to properly control it can achieve high-quality work results.
As a manufacturer of abrasive sandpaper, Bingyang Sandpaper, a subsidiary of Zibo Bingyang Grinding Technology Co., Ltd., is a leading brand in the industry. We not only provide sandpaper, sandpaper sheets, popular round sandpaper sheets, flaps, special layer sandpaper and other coated abrasives, but also provide cutting sheets, and customized sanding belts and other services. For China's Industry 4.0, keep moving forward. Want to know more product information? Click here:https://www.byabrasives.com/products