Main Components of Glass Fiber and Production Process

Understanding the main components of glass fiber and the production process will help us better use glass fiber extraction thimbles.

The main component of glass fiber

Its main components are silica, alumina, calcium oxide, boron oxide, magnesium oxide, sodium oxide, etc., according to the alkali content of the glass, can be divided into alkali-free glass fiber (sodium oxide 0% to 2%, belonging to aluminum Borosilicate glass), medium alkali glass fiber (sodium oxide 8% to 12%, is a soda-calcium silicate glass containing or not containing boron) and high alkali glass fiber. Hawach mainly has two kinds of glass fiber products: glass fiber membranes and glass fiber extraction thimbles.

Glass fiber production process

There are two kinds of glass fiber production processes: the two-forming-drawing method, and the one-time forming-pool kiln drawing method.

The boring method has many processes. The glass material is first melted into a glass ball at a high temperature, and then the glass ball is secondarily melted, and the glass fiber strand is formed by high-speed drawing. This kind of process has various disadvantages such as high energy consumption, unstable molding process, and low labor productivity, which is basically eliminated by large glass fiber manufacturers.

The pool kiln drawing method melts the raw materials such as pyrophyllite into a glass solution in a kiln, removes the bubbles, transports them to the porous drain plate through the passage, and pulls the glass fiber strands at high speed. The kiln can be connected to hundreds of drain plates through multiple channels for simultaneous production. The process is simple, energy-saving and consumption-reducing, stable information, high-efficiency, and high-yield, and is convenient for large-scale and fully automated production, and has become an international mainstream production process. The glass fiber produced by the process accounts for more than 90% of global production.