Reinforcing glass fibers of MgO-CaO-ZnO-Al{hd 2{b O{HD 3{B -SiO{HD 2{B -TiO{HD 2

摘要

Glass fibers of superior physical properties are produced by drawing at a temperature between about 1200 DEG and 1300 DEG C a melt consisting essentially of MgO-CaO-ZnO-Al2O3-SiO2-TiO2 of the following approximate molar composition: }MgO 7-27.5 % }CaO 4.5-32.5 % }ZnO 3-15 % }Al2O3 5-13.5 % }SiO2 36-56 % }TiO2 0- 9 % } The fibers are especially suited for use as a reinforcement in a plastic, plaster, cement or low-melting metal structure.