Glass bubble may arise in the manufacturing, usually comes from the following aspects

by:Lisson     2020-11-11
bubble may arise in the manufacturing, usually comes from the following aspects:
( 1) Material particle clearance of the gas and material surface adsorption gas
in the early part of the batch melting system, these gases have been volatile or evaporation, is on the rise in the process of forming large bubbles rise and escape glass liquid, generally does not directly lead to visible air bubbles in the glass products. Unless the raw materials, improper control of particle size and batch melting not fully, the gas can't discharge.
( 2) Salt decomposition gases emitted by the batch of
in the presence of large amounts of carbonate, sulfate and nitrate, these salts thermal decomposition, produce a large number of tiny air bubbles, the gas generated in the salt decomposition quantity, accounts for about 20% of the weight of the batch of 15 a, and the formation of the eco-friendly tube liquid ratio, large size out many times, the release of gases and moving, promoting the improvement of the heat exchange efficiency, accelerate the melting of the batch, improved the uniformity of eco-friendly tube composition and temperature uniformity, but, this kind of gas bubbles not promptly eliminate will form glass bubbles.
( 3) A gas external factors:
glass liquid cooling fast or temperature fluctuations, or for a variety of reasons, large glass of REDOX state volatility, these factors combined action, all kinds of gas solubility in the glass liquid fluctuation occurs, releasing a large number of small secondary air bubbles. This bubble is characterized by small diameter and quantity.
sometimes due to miscalculation or material feeding error during the execution of a party, cause pool kiln glass composition fluctuation significantly, change the gas solubility in glass, eco-friendly tube bubbles.
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