How to prevent glass bottle bubbles and bottle mouth cracks?

Glass bottles may encounter various problems during the production process. Among them, how should we prevent bubbles and cracks in glass bottles? Below, the editor will introduce to you how to prevent glass bottle bubbles and bottle mouth cracks?

During the melting process of glass bottles, various salts and other substances in the powder will decompose at high temperatures, and many gases released will continuously be swept away from the melt. The melt enters the clarification stage and continues to sweep away bubbles. To accelerate the removal of bubbles, high-temperature melting is usually used to reduce the viscosity of glass liquid, or substances that participate in reducing surface tension, or to reduce the pressure inside the kiln to allow bubbles to escape. However, despite this, some bubbles still remain in the glass liquid, perhaps due to the interaction between the glass liquid and the furnace gas, bubbles occur again but are not cleaned up in time, which forms residual bubbles.

To prevent such shortcomings from occurring, it is necessary to strictly follow the principles of ingredients and melting, adjust the melting temperature, modify the type and amount of clarifying agent, or appropriately modify the glass composition to reduce the viscosity and surface tension of the melt. The above are all measures that are beneficial for removing bubbles in glass liquid. Cracks are a common drawback of glass, they may be very fine, and some can only be detected in reflected light. The most common areas of occurrence are the bottle neck, neck, and shoulders, and cracks often occur on the bottle body and bottom.

Uneven thickness refers to the uneven distribution of glass on the glass bottle. The main reason is that the temperature of the glass droplets is uneven, and some with higher temperatures have lower viscosity and are simply blown thin; Some areas with lower temperatures have greater resistance and are thicker. The temperature of the model is uneven. The glass on the high side cools slowly and is simply blown thin, while the glass on the low side cools quickly and is blown thick.

The above are all measures taken to address the shortcomings of glass bottles. With these measures in place, these shortcomings can be effectively addressed in the production of glass bottles in the future, increasing production efficiency.