Inhibitor for eliminating filament breakage in the process of producing alkali-free glass fibers

Abstract

The invention discloses an inhibitor for eliminating filament breakage in the process of producing alkali-free glass fibers. A raw material of coal-measures kaoline, hard kaolin or refractory clay is subjected to ore proportioning, crushing and grading to prepare superfine powder, namely the inhibitor, and the inhibitor comprises 44.0 to 50.0 percent of SiO2, 36 to 42 percent of Al2O3, 0.3 to 0.8 percent of Fe2O3, 0.5 to 2.0 percent of TiO2, 0.1 to 1.5 percent of K2O+NaO2, 0.1 to 1.5 percent of CaO+MgO and 12 to 16 percent of H2O. The inhibitor accelerates glass generation and reduces energy consumption by controlling product granular size and size distribution and other means, and prevents minerals from changing phase and further generating impurities so as to reduce the phenomenon of filament breakage. The product can completely replace alkali-free clay powder used in the conventional glass fiber industry.

Description

technical field [0001] The invention relates to an inhibitor for eliminating flying wire breakage in the glass fiber production process, which is made from coal series kaolin, hard kaolin or refractory clay. Background technique [0002] Since my country introduced glass fiber production technology from Japan in the 1950s, manufacturers of alkali-free glass fiber in my country have used a large amount of pyrophyllite ore powder as filler. In recent years, with the depletion of high-quality pyrophyllite resources, alkali-free clay has been used. Powder is used as a new filler for alkali-free glass fiber. At present, alkali-free clay powder is used for glass fiber. Although it can improve the strength and chemical stability of glass fiber and accelerate the hardening speed of glass fiber during molding, there has always been a phenomenon of flying wire breakage, which seriously restricts the production rate of the product. Contents of the invention [0003] Aiming at the phe...

AI Technical Summary

Problems solved by technology

At present, the glass fiber uses alkali-free clay powder. Although it can improve the strength and chemical stability of the glass fiber and accelerate the hardening speed of the glass fiber during molding, there has always been a phenomenon of flying wire breakage, which seriously restricts the production rate of the product.