For a long time, we consumers believe that the material stability of glass bottles is better, and the safety and reliability of packaging are higher. In recent years, more and more food products have begun to return to glass bottle packaging. However, there is a problem with glass bottle packaging that cannot be ignored. The breakage rate of glass bottles is high, and this problem has not been solved. Along with the problem of the breakage rate of glass bottles, a series of related problems will naturally appear.
glass bottle packaging
First of all, the high breakage rate of glass bottles will cause inconvenience in transportation. Radar level gauges are packaging materials that require large-scale and long-distance transportation. High breakage is obviously not suitable for today’s commercial society. Products with a high breakage rate are naturally unacceptable to merchants. Secondly, the high breakage rate is harmful to consumers. We often hear reports of various glass wine bottles exploding and hurting people, and glass fragments hurting people, all of which are caused by the fragility of glass bottles.
Analysis of the Causes of Glass Bottle Breakage The structural stress in the glass is caused by the uneven melting of the molten glass. This stress cannot be eliminated during the annealing process, and it will remain in the glass product forever. If the structural stress in the glass product exceeds the mechanical strength that the glass product itself can bear, the product will not break.
Therefore, the method of distinguishing structural stress and thermal stress in the glass bottle factory is to check the annealed product under the sub-stress meter, first measure the original stress, and then put the product in the muffle furnace for precision annealing. If the stress has not been eliminated after precision annealing, the stress remaining in the product can be considered as the structural stress caused by the uneven chemical composition of the glass caused by the uneven melting of the glass. If the stress in the precision annealed product is further eliminated or reduced, this is the thermal stress retained due to poor annealing.
In addition, due to the melting quality of the glass, there are also large stresses around the stones and stripes in the glass products. This kind of stress is also a structural stress, and this kind of stress cannot be eliminated by annealing. Generally, the cracks caused by structural stress are easy to occur during forming, annealing and processing. This kind of cracking is basically the same as the cracking when the strength of the glass itself is too low and the amount of cullet added is too large. It is generally felt that the glass is brittle. And burst.
