Process for preparing vacuum glass

Abstract

The invention relates to a process for preparing vacuum glass, and the process comprises the following steps of: carrying out open-mediated process on raw pieces, polishing edges, opening a hole, cleaning, coating an adhesive layer, combining the pieces, sealing, degassing and closing an exhaust pipe, wherein the step of sealing is carried out in a continuous reheating furnace at the temperature of 350-500 DEG C; and the degassing step is carried out in a vacuum furnace at the temperature of 200-320 DEG C. After the process for preparing the vacuum glass, the production continuity of vacuum glass products can be guaranteed, the manufacturing time of the vacuum glass can be shortened, the production efficiency is greatly improved, the production cost is reduced, and a firm foundation is laid for mass production of the vacuum glass products.

Description

technical field [0001] The invention relates to a glass preparation process, in particular to a vacuum glass preparation process. Background technique [0002] Vacuum glass uses the principle of a vacuum flask to seal the surroundings of two pieces of flat glass, opens air holes on the glass surface for vacuuming, and then seals the air holes to form vacuum glass. At present, the method of making vacuum glass is as follows: First, place the fine supports on the glass regularly, then put another glass of similar size with an air suction port on it, apply glass solder around the glass, and place it in a high-temperature vacuum furnace. Inside, the high-temperature sealing around the glass and heating and degassing treatment are carried out. While heating, the vacuum furnace always maintains the vacuum degree that the product needs to achieve. Finally, the temperature is lowered, and the suction port on the glass surface is melted and sealed by infrared and laser heating. [0...

AI Technical Summary

Problems solved by technology

[0003] The existing vacuum glass manufacturing process has the following disadvantages: since there is no heat transfer carrier in the vacuum state, there is no heat conduction and convection in the vacuum equipment, and the temperature in the vacuum furnace must be lowered from more than 400 degrees to normal temperature without affecting the internal products. takes quite a long time

[0004] In addition, the vacuum glass processed by the existing manufacturing process is to open the suction port on the glass surface, which increases the vertical distance between the products, thus reducing the output per unit volume and increasing the production cost.

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