Laser particle size analyzer for particle size detection of glass beads（1）

Development of glass beads industry

Glass microspheres are a new type of material that has been developed in recent years with a wide range of uses and special properties. They are glass (or ceramic) spheres with a diameter ranging from a few microns to a few millimeters. There are solid, hollow, and hollow glasses. It is divided into microbeads; it has the characteristics of good optical performance, spherical lens characteristics, strong impact resistance, good rolling resistance, low thermal conductivity coefficient, and light weight. As a new type of filler, glass microbeads are derived from synthetic microbeads, and the other can be extracted from fly ash by air separation or water separation. The development of glass beads has been very rapid in recent years.

At present, the production technology of glass beads is mainly controlled by several large foreign manufacturers. They are not only internationally leading in technology but also have a full range of varieties and specifications. Among them, hollow glass microspheres have the characteristics of high compressive strength, thin wall, low density, high sphericity, high color and brightness, and small particle size, and occupy a large share in the international market. The development and industrial production of glass microspheres in my country began in the 1960s. After years of efforts by scientific researchers, my country's production and development of glass microspheres has made some progress. There are already some domestic manufacturers that can produce hollow glass microspheres in small batches. At present, my country has more than ten scientific research units and factories engaged in the production and development of glass beads. Although my country's research on hollow glass microspheres has achieved some results, the output is low and the specifications are incomplete. For some hollow glass microspheres with special properties, such as those used in electronics, marine, etc., my country's independent research and development capabilities are still very low, and related technologies need to be further explored.