The melting process of pharmaceutical glass bottles

Pharmaceutical glass bottle is a more widely used in the medical packaging industry, but its production process is also very strict, one of the steps is melting, just this process is divided into five stages, including the formation of silicate, glass formation, clarification, homogenization and cooling. Here we come to a detailed understanding of the understanding.
(1) the formation of silicates: this stage with the material components in the heating process after a series of physicochemical changes mainly occur in the solid-phase reaction of most of the gaseous products from the material with the material escaped from the back of the material with the material into an opaque sintered material composed of silicates and silica.
(2) the formation of pharmaceutical glass bottles: this stage of the sintered material began to melt at the same time the silicate and the remaining silica melt each other and then the sintered material into a transparent body of the glass liquid and a large number of bubbles and the chemical composition and nature of the inhomogeneous.
(3) clarification: the glass continues to be heated to reduce the viscosity to release a large number of gaseous debris that eliminates the visible bubbles.
(4) homogenization: the glass solution for a long time at high temperatures due to the role of diffusion to make the glass streaks in the elimination of solid to the allowable limit into a homogeneous body. Homogenization can be completed below the clarification temperature.
(5) Cooling: After clarification and homogenization, the temperature of the glass liquid will be lowered by 200~300℃ in order to make the glass liquid have the necessary viscosity for molding.