Causes and elimination methods of glass bubble

Glass products factory, the production of glass bottles, it is likely to have bubbles, these bubble does not harm the quality and appearance of the glass bottle, together with the analysis of the glass is caused by bubbles. Glass bottle manufacturers have the advantage of high-temperature resistance, pressure resistance, and cleaning resistance, which can be both high-temperature sterilization and ultra-low temperature storage. Just because it has many advantages, it becomes the preferred packaging product for beer, fruit tea, sour jujube juice, and many other drinks. Glass bottles are traditional domestic beverage packaging materials, and glass is also a packaging product with a very historical time.
In the case of a wide variety of packaging products in the sales market, glassware still occupies a key part of the beverage, which is inseparable from the packaging characteristics that can not be replaced by other packaging products.

The main characteristics of glass bottle packaging materials are non-toxic, odorless; Fully transparent, beautiful, good barrier, poor ventilation effect, rich and colorful raw materials, cheap price, and can be applied for multiple capital turnover. In order to better study the glass bubbles scientifically, the source of the gas in the bubbles, the interaction between the gas and the glass liquid, and the harm caused by the physical characteristics of the glass liquid to the whole process of the bubbles are first analyzed.

The gas in glass bubbles usually comes from a number of layers
1. The gas in the gap of the material particles and the gas adsorbed by the surface of the raw material
In the early stage of the mutual mixing material melting, such gases continue to evaporate or volatilize, produce large bubbles in the lifting process, and escape the glass liquid, which is generally impossible to immediately cause bubbles to occur in glass products. Unless the size distribution of the raw material is manipulated improperly, the caking of the cooperating material is not melted enough, and the gas cannot be discharged.
2. Dissolve the released gas
Lot numbers are high in inorganic salts, potassium thiocyanate, and phosphates. This salt dissolves when heated and creates many tiny bubbles. The amount of gas formed by the dissolution of salt is about 15-20% of the net weight of the batch. Compared with the achieved liquid glass, the volume is many times larger. A lot of this gas is released and continues to move, which increases the efficiency of the heat exchanger, speeds up the melting of the batch and improves the symmetry and temperature symmetry of the glass bottle composition. As everyone knows, the bubbles produced by this gas cannot be immediately removed to produce glass bubbles.
3. Part of the elements caused by gas
The gas caused by the liquid effect of glass, the hazardous residue components, the gas extracted from the refractory insulation material, and the glass bubbles generated by the gas are long in all the normal production processes and are not easy to fade, but the situation is rare.
The temperature of the glass melt decreases too fast or changes relatively large, or the REDOX reaction of the glass fluctuates relatively large for various reasons. This factor causes the solubility of various gases to fluctuate, releasing many tiny secondary bubbles. This kind of bubble is characterized by a small diameter and many bubbles.
Sometimes, because the calculation or feeding of the material in the implementation link of the material side is incorrect, the glass composition in the tank furnace is relatively large, and the solubility of the gas in the glass is relatively large, resulting in a lot of glass bubbles.
The final regression of the glass bubble in the whole process of response is two methods: first, the small bubbles continue to grow into solid bubbles, and the bubbles with the relative density difference float up again, and finally escape the glass liquid state and fade. The second is small bubbles, the solubility of gas in glass increases with the decrease of temperature. Due to the effect of interfacial tension, there are a variety of gases in the bubble, the working pressure is high, the bubble diameter is small, the gas is quickly digested and absorbed by the glass, the working pressure of the bubble continues to expand with the reduction of the diameter, and finally the gas in the bubble is completely melted in the glass liquid state. The little bubble disappeared completely.