Cold quenching process of plate glass tempering
A glass tempering, flat glass technology, applied in glass tempering, glass manufacturing equipment, manufacturing tools, etc., can solve problems such as limiting the wide application of tempered glass products
Active Publication Date: 2013-12-25
LUOYANG NORTHGLASS TECH +2
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Problems solved by technology
With the continuous improvement of the pursuit of material and cultural life, more and more dissatisfaction with this status quo limits the wide application of tempered glass products
Method used
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[0026] Below in conjunction with the accompanying drawings, an application example is given to further illustrate the present invention.
[0027] see figure 1 , which illustrates the technological process in the quenching stage in the production process of the flat tempered glass of the present invention. In the quenching stage, when the flat glass 1 heated to the tempering temperature is about to come out of the furnace, many blowing holes 4 on the upper and lower quenching air grids 3 start to blow continuously, forming a wind field. Under the conveyance of the roller table 2, the glass 1 is sent out from the hot furnace into the wind field formed by the upper and lower quenching air grids 3. The glass 1 continues to swing back and forth along the direction of glass travel in the wind field, that is, the X direction. The swing amplitude is random and not less than the minimum set value, and the speed gradually decreases; at the same time, the upper and lower quenching air g...
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The invention discloses a cold quenching process of plate glass tempering, comprising the following steps that: when the plate glass which is heated to the tempering temperature is about to be discharged, an upper cold quenching grid and a lower cold quenching grid start to continuously blow to form a wind field; under the transmission of a roller way, and the glass is transmitted out from a hot furnace to enter the wind field formed by the upper cold quenching grid and the lower cold quenching grid. According to the invention, the range of the continuous reciprocating oscillation of the glass along with the direction of travel is random and not less than the minimum set value, and the range of the continuous opposite reciprocating oscillation of the upper cold quenching grid and the lower cold quenching grid along with the direction which is perpendicular to the direction of travel is random and not less than the minimum set value; the ranges of the two oscillations are set randomly, the oscillation reciprocating point positions of the glass relative to the upper cold quenching grid and the lower cold quenching grid in the two directions are random, and the position of a wind spot formed on the glass is random; thus the wind spots formed by the glass reciprocating oscillation at every time are dispersed in different reciprocating points without the effects of repeated accumulation and continuous reinforcement, and the produced tempered glass has no wind spot basically.
Description
technical field [0001] The invention relates to a cold quenching process for flat glass tempering, which is used in the cold quenching stage in the production process of horizontal roller table type flat tempered glass. Background technique [0002] The basic production process of horizontal roller flat glass tempering is: loading → heating → quenching → unloading. Specifically: [0003] Loading stage: Transfer the original glass into the heating furnace. [0004] Heating stage: heating to tempering temperature in the glass heating furnace. [0005] Quenching stage: blowing and quenching the heated glass. [0006] Unloading stage: The tempered glass is sent out. [0007] In the quenching stage, the cold air blown from the regularly arranged circular hole arrays of the upper and lower quenching air grids is sprayed onto the upper and lower surfaces of the flat glass respectively to complete the quenching of the flat glass. At present, there are two kinds of process metho...
Claims
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IPC IPC(8): C03B27/04
Inventor 韩俊峰
Owner LUOYANG NORTHGLASS TECH