Experience design of glass composition

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The glass component experience design is a method that has been used for many years, and the method is relatively simple and convenient to use. Firstly, according to the requirements of the glass variety and its physical and chemical properties, production methods, raw material origin and its components, cost accounting, etc., the research and literature review are conducted to find out the same production method at home and abroad, and the properties of the glass are similar. The glass component is used as a reference, and then some local modifications and adjustments are made to the components on the domestic and foreign materials according to factors such as raw materials and cost, and new components are designed, and the physical and chemical properties, process properties, raw material dosage and cost of the new components are Perform calculations to see if it meets the design task requirements. If there is a gap between the indicators and requirements in one aspect, further adjustments are made until the indicators required by the mission book are fully met. The design process is as follows.


Design basis: product variety, color, traits, size, performance → select production method → ​​select molding machine and production parameters: machine speed, working time, etc. → find the ingredients used in the same or the same type of forming machine in the factory → according to product nature, cost , environmental protection requirements, etc., select several primary components → calculate the proportion of physicochemical properties, process performance, ingredients and cost calculation according to the selected primary components → preferably the best glass properties, the lowest cost is the design component.


Since most of the products are industrialized, each production method has different types of forming machines. Each type of forming machine requires glass to have a viscosity-temperature curve, a hardening speed, a crystallization temperature range, and a crystallization rate. Process performance. For example, when designing a thin-walled lightweight large-mouth glass bottle, a reasonable forming method should be a pressure-blowing method, and a forming machine suitable for the bottle type is a sea-eye type (Heye) bottle making machine, after the forming method and equipment are determined, It can find the process index of the viscosity-temperature curve and hardening speed of the glass required for the formation of the sea leaf type bottle machine, or the glass composition as the design reference when the light bottle is actually produced from the sea leaf type bottle making machine at home and abroad. .
For the same production method, when the same type of forming machine is manufactured with different colors, different shapes and different sizes, the forming speeds used are different, and thus different requirements are imposed on the hardening speed of the glass. The actual situation is often complicated, not only the different requirements for the glass hardening speed, but also the heat capacity, thermal conductivity, thermal radiance of the glass have an effect on the speed of the glass forming machine, so the temperature, viscosity curve, hardening speed cannot be As the only factor of influence.

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