Glass microbeads are a new type of silicate material developed in the past two decades. There are many varieties and a wide range of applications. People are paying more and more attention. The manufacturing method is summarized as follows. The production methods of glass beads can be roughly divided into two categories: powder method and melt method. The powder method is to crush the glass into the required particles, after sieving, at a certain temperature, through a uniform heating zone, the glass particles are melted, and microbeads are formed under the action of surface tension. The melt method uses high-speed airflow to disperse glass liquid into glass droplets, which form microbeads due to surface tension. Heating method: For glass with general or higher melting temperature, gas heating or oxyacetylene flame and oxyhydrogen flame heating can be used; for glass with high melting temperature, DC arc plasma device can be used for heating. Powder method At the beginning, the most powder method was used. The particulate glass powder as the raw material was put into the reservoir and flowed to the hot zone of the high-efficiency gas nozzle. The glass beads are controlled by a strong flame here and pushed into the huge expansion chamber of the device. Through flame heating, the glass beads melt almost instantly. Then the particles quickly reduce the viscosity and are shaped into an ideal spherical shape that meets the requirements under the action of surface tension.
