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The  production  process  and  five  characteristics  of glass fiber

 
一、Glass fiber production process

  Fibers glass, a reinforcing Fibra de vidrio compuesta and metal replacement material. The diameter of the monofilament is several microns to twenty microns, which is equivalent to 1/20-1/5 of a hair, and each bundle of fiber strands is composed of hundreds or even thousands of monofilaments.

  Fiberglass pre preg has the characteristics of non-combustibility, corrosion resistance, heat insulation, good sound insulation, high tensile strength, good electrical insulation, etc. It has a wide range of uses and is widely used in construction, automobiles, ships, chemical pipelines, rail transit, wind power and other fields Broad application prospects.

  There are two kinds of glass fiber production processes: two-time forming - crucible drawing method, one forming - pool kiln drawing method.
The crucible drawing method has many processes. First, the glass raw material is melted into glass balls at high temperature, and then the glass balls are melted for a second time, and then drawn at high speed to make roving. This process has various disadvantages such as high energy consumption, unstable molding process, and low labor productivity, and is basically eliminated by large glass fiber manufacturers.

  The pool kiln drawing method melts raw materials such as pyrophyllite into a glass solution in a kiln, removes air bubbles and transports it to a porous bushing through a passage, and draws it into a glass fiber strand at a high speed. The kiln can connect hundreds of bushings through multiple channels for simultaneous production. This process is simple, energy-saving and consumption-reducing, stable in molding, high-efficiency and high-yield, and is convenient for large-scale fully automated production. It has become an international mainstream production process. Fiberglass quoins produced by this process account for more than 90% of the global output.