[China Glass Net] Automatic glass cutting machine is now used to heat the glass softening point. The glass can also maintain the original shape, but there is a certain glass particle migration ability, structural adjustment, and such internal pressure is quickly eliminated. The presence of cold current, temperature equilibrium, compressive stress, tensile stress on the surface of the bismuth glass, the glass produces a uniform and periodic internal stress distribution, increasing the tensile strength of the glass as a brittle material, so glass bending and impact strength Improvement, at the same time, because of the internal uniform pressure of the glass, once the local strength exceeds the strength of the glass can withstand the impact of the fracture, the small particles under the internal pressure, improve the safety.
In the process of tempered glass tempering furnace, in general, wind energy and pressure, wind cooling process due to unevenness due to uneven glass stress, some special angles are formed to observe the light and dark stripes between the glass surface, the spot is uneven Because of the pressure, such as during the heating process, the pressure caused by the central fireplace and the uneven temperature difference, the pressure point is not completely avoided, but a well-designed tempering device can reduce the visibility of the pressure.
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