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Glass Fibre Properties and Manufacturing Process Extremely fine fibers of glass constitute a revolutionary material known as glass fibre. The invention of ultrafine machine tooling paved the way for the successful commercialization of this material. It follows the same molecular structure as glass comprising oxygen and silicon atoms in an amorphous structure, that is, non-crystalline. Thus, similar properties are also inherited such as very high melting point at 1200 degrees Celsius. The ratio of the surface area of the material to its weight is also very high. The latter property and the high melting point make it ideal for use as thermal insulator. This highly favorable thermal property is further enhanced by trapping air bubbles within the blocks of the fiber. Nonetheless, overly exposed structure also makes it prone to chemical degradation. The non-crystalline structure of glass gives the material an almost uniform property along or across every strand. Due to this uniform structure, it has naturally high tensile strength as well as compressive strength. These desirable properties are, however, undermined if moisture is adsorbed and the effects of microscopic cracks are more pronounced. The production of this material follows a two-step manufacturing process. The first step involves the conversion of raw materials into a homogeneous melt. These raw materials are ideally rich in borosilicate. Afterwards, this homogenous melt is fabricated into fibers. Using the same two-step process, two types can be fabricated: textile and wool. Although the process involves only two steps, industrial production is conveniently organized into three phases. First phase is the preparation of the raw materials to be used. Next, glass is melted and refined. Finally, formation of fiber as wool and textile products is carried out. With improvements and optimizations of the production steps, the process has become standardized and, hence, more efficient. Better control of the manufacturing variables led to materials of consistent quality.


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