How can there be patterns in laminated glass? I firmly believe that all the pot friends who work in the manufacturing industry of glass bottle manufacturers should have encountered astronomical conditions during the processing of laminated glass. Many pot friends do not know why this is. Today’s web editor is here to tell everyone about this problem.
How can patterns be caused in laminated glass
(1) The patterned laminated glass caused by uneven melting is based on the whole process of melting. The effect of the “homogenization” link enables each part of the solution to diffuse out of each other and remove the unevenness. If the homogenization is insufficiently developed, there will eventually be a different level of unevenness in the vitreous body. Elements related to this Such as the precision of intermixing materials, the flying of particles, the application status and usage of glass slag, etc. The stability of the melting regulations is closely related to the formation of patterns and nodules. When the melting temperature is unstable, the uniformity is destroyed. In addition, the temperature rules and regulations in the freezing zone have also caused the laminated glass liquid in the freezing zone to sign up for the liquid, resulting in the appearance of patterns and nodules. Another factor that affects the pattern is the vapor in the kiln. It has long been understood that the laminated glass The interfacial tension is greatly harmed by the vapor in the kiln. After the effect of reducing gas, the interfacial tension of the same type of laminated glass is 20% higher than that of the effect of air oxidizing gas. When the liquid level of the laminated glass is balanced, it suffers from oxidation. When the furnace gas is effective, the interfacial tension of the solution increases, the surface layer is torn, and the inner solution with a relatively small interfacial tension pushes down the surface. This whole process is carried out again until all the laminated glass melt is restored. This type of situation indicates the steam in the kiln. The body (reducing gas) can promote the rolling of the laminated glass, and it is not difficult to see the harm caused by the vapor in the kiln to the uniformity of the laminated glass. For the potassium thiocyanate-containing laminated glass colored by the redox reaction effect, the kiln The vapor will color it (yellow-brown) patterns. In the production process, the patterns and nodules caused by uneven melting usually contain silica and are more dispersed in the laminated glass. General response Excellent laminated glass is also excellent in homogenization. In other words, under normal conditions, in laminated glass without a single bubble, there are very few patterns due to uneven melting. There are many uneven melting in processing plants. The resulting patterns are all accompanied by a urinary stone caused by bubbles and poor melting.
(2) The pattern caused by the droplets. As mentioned above, the droplets are driven into or flowed into the glass body, because its organic chemical composition and the main body of the laminated glass are obviously different, and patterns and nodules will also be produced. The laminated glass droplets produced by the corrosion of the silica bricks on the kiln and the breast wall are classified as rich in silica. The laminated glass droplets produced after the refractory and heat-insulating materials on the wall of the tongs are corroded belong to the rich alumina. The viscosity of these two kinds of laminated glass droplets is quite large, and the diffusion in and out of the laminated glass solution is relatively slow, and they are usually too late to melt, resulting in patterns and nodules.
(3) Patterns and nodules such as patterns caused by corrosion of refractory insulation materials are the most common. The laminated glass melt corrodes the refractory insulation material, and the destroyed part will fall into the laminated glass body in the form of crystals to produce urinary stones. It will also produce glassy chemical substances that melt in the laminated glass body, so that the components of the laminated glass melt that increase the viscosity and interfacial tension, and thus produce patterns. The more severely uneven glass bodies appearing along the large bricks on the side walls and the walls of the tongs generally produce aluminum oxide-rich patterns. For laminated glass with strong adhesion, the pattern caused by this kind of corrosion is basically unavoidable. Sometimes it is used to promote the homogenization of the laminated glass to increase the temperature, but the corrosion of the refractory insulation material has also increased, and even the laminated glass Lots of patterns. Conversely, if the temperature is reduced, homogenization is difficult. Therefore, to deal with such problems is mainly to improve the quality of refractory insulation materials. It is very easy to corrode the horizontal brick joints, and the vertical brick joints are also easy for alkali to penetrate. Generally, a layer of glass slag solution is lined at the bottom of the tongs pot so that the alkali-containing components do not directly contact the refractory insulation material. Following the established temperature rules and regulations and preventing the entire temperature process are also key elements to avoid and remove pattern nodules.
(4) Patterns and nodules caused by the melting of urinary stones are sometimes caused by urinary stones. Due to the effect of the solution of the laminated glass in the vitreous body, the urinary stones gradually melt at a different rate. The large solubility and stay in high temperature for a certain period of time, it can subside. The vitreous body after the urinary calculus melts and the laminated glass of the main body still have a different organic chemical composition, resulting in nodules or patterns. After the urinary calculus melts, an aqueous solution ring is formed around it. Sometimes this kind of aqueous solution ring is encapsulated. If the urinary calculus is a clay refractory insulation material, a pattern containing aluminum oxide can be drawn from the cyst, and it is dragged. With a long tail, urinary stones stay in the cyst and sometimes come out of the cyst.
The above is that the net weaving creates patterns in the laminated glass that everyone is combing. I hope that after reading this article, everyone can understand how they can only be, and I also hope that everyone can pay more attention to these aspects in future work. Difficult problem.