What are the methods for making Fiberglass Cloth?

There are three manufacturing processes for Fiber Glass: clay crucible method, platinum substitute crucible method, and pool kiln method. The clay crucible method is an original technological method, and its raw material is mainly waste glass. The platinum-substituted crucible method is currently a widely used process, and its raw material is glass spheres. Both the clay crucible method and the platinum crucible method are called crucible drawing methods.

The crucible method is also called the two-step method. The mineral raw materials are made into glass beads according to the required formula, and then sent to the platinum-substituted drawing crucible for remelting and drawing. This method not only causes secondary waste of energy, but also has poor single-machine output and high production costs, and cannot meet the needs of multiple varieties of production.
The grid-clothed pool kiln method is the current process method, and its raw material is a mineral powder mixture mainly composed of pyrophyllite. The pool kiln drawing method is also called the one-step method. It does not need to make glass pellets first, but directly puts the natural ore raw materials of each component into the pool kiln at the same time according to the proportion for melting and drawing. Compared with the fish crucible drawing method, the pond kiln drawing method has a series of advantages such as simplified process, reduced energy consumption, platinum consumption, low production cost, and can meet the needs of multiple varieties and high-quality products.
Generally, these methods of Fiber Glass consist in placing a Fiberglass Cloth of the required size in an aqueous suspension dispersion containing appropriate additives, coating this liquid preparation on a filter belt, sucking up the excess liquid phase through a suction device, It is necessary to repeat the steps of depositing the aqueous formulation and filtering to introduce an amount of additional fibers, optionally pressing to manipulate the thickness of the layer and extracting an additional amount of water and ending with a drying stage of the fiber sheet thus formed.