Method and system for glass melting, high-temperature viscosity measurement and vertical glass fiber drawing by vertical drawing method
A glass fiber and far-drawing technology, used in glass manufacturing equipment, glass furnace equipment, manufacturing tools, etc., can solve the problems of long time, low efficiency, and inability to solve glass rod bubbles and other problems
Active Publication Date: 2019-05-21
KORNERSTONE MATERIALS TECH
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Problems solved by technology
The process of melting glass blocks and processing them into glass rods takes a long time, the efficiency is low, and it is impossible to solve the problem of bubbles appearing on the surface of glass rods during the reheating process
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[0029] In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with reference to the accompanying drawings, but the present invention is not limited thereto.
[0030] refer to Figure 1 to Figure 6
[0031] A method capable of glass melting, high-temperature viscosity measurement and vertical drawing of glass fibers, the steps are as follows:
[0032]Step (1): Cut the glass sheet into 20mm~30mm square samples, use a 200ml platinum crucible to hold the glass sheet, and the lifting mechanism will slowly send the crucible into the heating furnace at a heating rate of 10°C / min. When the furnace temperature reaches 1300°C , slowly put the stirring rotor into the molten glass for stirring at a stirring speed of 20r / min to remove air bubbles, and continue to heat up to 1580°C, and keep stirring for 30min;
[0033] Step (2): According to Method A in ASTM-C965 "Standard Opera...
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The invention relates to a method and a system for glass melting, high-temperature viscosity measurement and glass fiber drawing by a vertical drawing method. The method comprises the following steps:heating and melting glass and executing stirring; testing a glass viscosity value of the glass liquid in a specific cooling rate process; setting the temperature of glass fiber drawing according to the glass viscosity value; drawing glass fibers by using the vertical drawing method. The system comprises a rack, wherein a rotating platform driven to rotate by a driving mechanism is arranged on therack, wherein a rotating platform driven to rotate by a driving mechanism is arranged on the rack, a furnace body is arranged below the rotating platform, the furnace body is divided into a heating furnace chamber and a heat preservation furnace chamber through a partition plate, a crucible for containing a glass sample is arranged in the heating furnace chamber, the crucible is driven to ascendand descend by a lifting mechanism, a yielding hole used for the crucible to enter the heat preservation furnace chamber is formed in the partition plate, and a stirring mechanism, a vertical drawingmechanism and a viscosity testing mechanism are arranged at intervals on the periphery of the lower portion of the rotating platform. The method and system can achieve testing of glass viscosity and rapid determination of appropriate temperature values for glass fibers produced by the vertical draw method using the tested viscosity value.
Description
technical field [0001] The invention relates to a method and system capable of glass melting, high-temperature viscosity measurement and vertical drawing of glass fibers, and is suitable for the technical field of glass materials. Background technique [0002] Glass materials should be annealed during the forming process and reprocessing process. The annealing process mainly includes the annealing limit temperature (ie, the softening point temperature), the annealing point temperature and the lower limit temperature of the annealing point (ie, the strain point temperature). The softening point temperature, annealing point temperature and strain point temperature of glass are all measured by glass fiber elongation in a heated state, and the softening point temperature Tsoftening is based on ASTM C-338 "Standard Test Method for Softening Point of Glass" Standard method measurement and GB / T 28195-2011 "Glass softening point test method", the standard requires that the glass fi...
Claims
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IPC IPC(8): C03B5/16C03B5/187C03B5/02C03B37/03
Inventor 梁新辉张维炜林文城陈招娣
Owner KORNERSTONE MATERIALS TECH