Manufacturing method of glass fiber

The manufacturing method of glass fiber is to melt glass raw materials into glass balls at high temperature, then melt the glass balls twice and draw them at high speed to make glass fiber filaments. This process has the disadvantages of high energy consumption, unstable molding process and low labor productivity, and has been basically eliminated by large glass fiber manufacturers.

The tank furnace drawing method is made by melting pyrophyllite and other raw materials in a heating furnace, conveying them to a perforated plate through a special channel, and drawing glass fibers at high speed. Kiln can be connected with hundreds of bushing through multiple channels at the same time. The process is simple, energy-saving, stable in molding, high in efficiency, high in finished product rate, and convenient for large-scale automatic production, and has become the international mainstream production process. The glass fiber produced by this process accounts for more than 90% of the global output.

Extended data:

Glass fiber production technology;

Glass fiber, also known as glass fiber, is a system made by melting glass ball white or waste glass at high temperature and drawing, winding and weaving. Its monofilament diameter is several microns to 20 microns, which is equivalent to 1/20- 1/5 of human hair. Each bundle of fiber precursors consists of hundreds or even thousands of monofilaments.

China's glass fiber industry has reached a certain scale, and has made great progress in product variety and output, as well as in technical level, which has played an important role in national economic construction. .