Melting process of cosmetic glass bottles in cosmetic packaging material factory

　　 During the process of making cosmetic glass bottles for cosmetic packaging material manufacturers, there will be a melting process. I believe that everyone is not very familiar with this process. Let me briefly talk about the cosmetic glass bottles of cosmetic packaging material manufacturers. What is the melting process like?

　　 In fact, the melting process of cosmetic glass bottles can be divided into five stages, which are silicate formation, glass formation, clarification, homogenization and cooling.

　　 The first stage: the formation of silicate. In this stage, each component of the compound material undergoes a series of physical and chemical changes during the heating process. The main solid phase reaction occurs. Most of the gaseous products escape from the batch material and the final batch material changes. It is an opaque sintered body composed of silicate and silicon dioxide.

　　 The second stage: the formation of cosmetic glass bottles. At this stage, the sintered product begins to melt and the silicate and the remaining silica are mutually fused. The final sintered product becomes a transparent body. There are a large number of bubbles and chemical composition in the liquid glass. And the nature is not uniform.

　　 The third stage: Clarification, the cosmetic glass liquid continues to be heated to reduce the viscosity and release a large amount of gaseous impurities to eliminate visible bubbles.

　　 Fourth stage: Homogenization, the cosmetic glass liquid is kept at high temperature for a long time. Due to the diffusion effect, the streaks in the glass are eliminated to the allowable limit and become uniform. Homogenization can be completed at a temperature lower than the clarification temperature.

　　 The fifth stage: cooling, after clarification and homogenization, the temperature of the glass liquid is reduced by ~℃, so that the glass liquid has the necessary viscosity for molding.

　　 The above five stages are the melting process of cosmetic glass bottles by cosmetic packaging material manufacturers. I hope that everyone will have a certain understanding of the melting process of glass bottles after reading this brief introduction.