Why does the glass flask blow apart at high temperature

- Aug 20, 2018 -

    Why does the glass flask blow apart at high temperature

There are three main reasons for glass bottles to burst at high temperatures:

1. The materials used in glass bottles and paper vary in coefficient of distension. When baking flowers, the pigments are pulled too tightly, leading to the fact that the pigments cannot keep up with the distension of the glass when baking flowers at high temperature. Use the high-temperature coloured paper of temperature low point, for instance the coloured paper of 520 degrees left and right sides, what common glass coloured paper USES is 560 degrees left and right sides, if be the pigment that environmental protection tests USES is 580 degrees above, the pigment that high borosilicate glass coloured paper USES is higher temperature, have 600 degrees commonly or so. image.png


2. When cold air enters the kiln, the common glass will crack under the sudden temperature difference, and the glass will also crack under the condition of cooling too fast.

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3. The glass bottle is too thin. If this is the case, make sure to use cool glass paper or lower the temperature of the baking flower to extend the baking time.In addition, the time to roast the flowers out of the kiln should be slow, and the temperature must slowly drop below 40 degrees before taking out, otherwise it will also burst.

 

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