Tempered glass is prone to shortcomings and solutions

06 Nov.,2023

Whether the quality of tempered glass conforms to the standard, besides the reason of glass raw material, whether the setting of technological parameters is reasonable is the deciding factor.

 

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Whether the quality of tempered glass conforms to the standard, besides the reason of glass raw material, whether the setting of technological parameters is reasonable is the deciding factor. Only by fully understanding their role and the relationship between them can we produce tempered glass. All the parameters are designed around "uniform heating, rapid cooling", but they are not isolated, they are the whole of an agricultural production system, must be considered together to achieve a complete process.

Temperature-related glass defects and correction methods:

1, if the temperature is set too high and the heating time is too long, the glass will appear waves, this is because the heating of the glass has exceeded the critical point, the glass has begun to soften, this shortcoming can be solved as long as the heating time is shortened.

2, the pitting heating time is too long will cause the lower surface of the glass pitting, pitting can be divided into two kinds, one is dense, orange peel shape, this is caused by the heating time is too long, can be adjusted according to the situation. The other is a separate star point point, it is due to the plate and ceramic roller surface is not clean, or the wind grid roller broken glass is not clean.

3, white fog, white fog is in the middle of the glass under the surface, in a white marks, it usually appears in front of the initial production of a few furnace, which is caused by the surface of the ceramic roller temperature is too high, when the initial few seconds into the furnace glass, glass surface is directly under the heat conduction and the corners of curly, glass and ceramic roller interface is smaller, and ceramic roller friction increase, As the surface temperature of the ceramic roller decreases, it will disappear. We can set the temperature of the lower part lower and the power of the lower part lower in the initial production. In addition, continuous production must be carried out without empty operation of the furnace. If the production is temporarily suspended, the heating switch can be turned off to prevent white fog.

4, bending we in the production of tempered glass, if the bending is generally by adjusting the wind pressure, or adjust the blowing distance to solve, very effective and fast. But some operators do not understand difference between the upper and lower temperature can cause the glass bending, assumes that the range gate section of the wind blowing, the size of the air pressure is equal to, if the corners of the glass bending upwards, means that the lower temperature is too low, on the contrary, if the corners of the glass curved downward, shows that the lower temperature is too high, if need to adjust the temperature to make flat glass, It's not just one or two, it takes a few.

5, spherical this is in the following 6 mm thin glass and the layout ratio is very large, you can adjust the middle longitudinal temperature up and down through the function of temperature adjustment, sometimes need to increase about 30 degrees.(from the second row on both sides of the longitudinal increase to the middle). An operator should understand that the relationship between temperature and optical performance is: high temperature and long heating time, the yield will be high, but the optical performance will be poor; Conversely, low temperature, or short heating time, good optical performance, but the yield will be low. This requires us to sum up seriously and look for better results. There is a great relationship between the temperature and the granularity of tempered glass.Under the condition of equal wind pressure, the particles are small at high temperature and large at low temperature.

 

Tempered glass is prone to shortcomings and solutions

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