Overview of Application Methods of High Temperature Resistant Glass

        The correct use of high temperature resistant glass has a certain relationship with the service life of the glass. Understanding the precautions for use can better and safer use the product.


 

        ① Strict cleaning treatment. If very small alkali metals such as sodium and potassium and their compounds are stained on the surface of high-temperature resistant glass, they will become crystal nuclei when used at high temperature, and will crystallize rapidly, causing impermeability. Therefore, before use, be sure to immerse the high-temperature glass in hydrofluoric acid with a concentration of 5~20% for 5~10min, and then wash it fully with deionized water. Finally, wipe it with degreasing gauze, dry it, and do not touch the dried furnace tube directly with your hands.

        ② High temperature pretreatment: when a new diffusion furnace fire is used to replace a new furnace, high temperature pretreatment must be carried out.

        ③ Please pay special attention to 573 ℃, 573 ℃ is the crystal transformation point of high temperature resistant glass. Whether it is heating up or cooling down, it must pass through this temperature point quickly.

        ④ Try to avoid unnecessary quenching and heating. Although high-temperature resistant glass has good heat stability, opaque high-temperature resistant glass or transparent high-temperature resistant glass with a thickness greater than 5mm is prone to cracks when the temperature changes too much.

        ⑤ When installing the glass, it is necessary to pad the gasket, and the force should not be too large when tightening the screws to prevent the glass from being crushed.


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