EFFECT OF CHARGE PREPARATION TECHNIQUE AND TYPE OF BORON RAW MATERIAL ON THE WORKING PROPERTIES OF MOLTEN GLASSES

• Published in: Glass and ceramics Vol. 48; no. 1/2; pp. 57 - 61
• Main Authors: Kalygin, V G, Gromkov, B K, Chekhov, O S, Gorbachev, V V, Petrakov, V N, Bogatyrev M, Yu
• Format: Journal Article
• Language: English
• Published: 01.01.1991
• ISSN: 0361-7610

In the two-stage production of continuous glass fibres, there is scope for accelerating the throughput by using new methods of preparing the charge (and the individual ingredients) on the basis of various boron-containing components. Structural changes in these components (increases in the amount of boron and aluminium in four-fold coordination as the pressure and temperature rise) lead to differences in function during heat treatment and corresponding changes in the technology, regardless of whether these changes are caused by exchange or solid state reactions. The composition or preparation method can be related to the working properties (throughput) by recording temperature profiles in the liquid in producing a monitored batch of glass spheres, where the patterns were compared with a standard. This allows the processing conditions to be selected and, if necessary, changes can be made in the technology at the charge preparation stage in order to control the microstructure or macrostructure. 5 refs.