Extra large hot bending tempered glass

Equipment advantages:

Mingdun Company uses its technical advantages of large arc hot bending and ion strengthening to cooperate with North Glass Group, complementing each other's advantages, and jointly completing a series of world-class building exterior glass products. At present, Mingdun is designing and developing larger ion strengthening furnaces and hot bending furnaces to build the world's largest ion strengthening processing base, so that Mingdun's ion strengthening and hot bending technology is second to none in the world, and it has formed a huge influence in the international top construction field.

Technical parameters

Stress value: ≥550MPa

Stress layer: ≥20um

Hot bending

Glass hot bending is to put the cut glass on a specific mold, put into the hot bending furnace as a whole, after several stages of heating, the temperature is raised to the softening temperature of the glass, through the control of the temperature of each part of the heating furnace and the gravity of the glass itself, so that the softened glass gradually fits with the mold, so that the glass reaches the designed shape, and then gradually cools down and cools out of the oven.

The size and fit of hot-formed glass are checked by the tooling inspection tool. For locomotive front window products, the size and fit tolerance can be controlled within ±3mm.

Chemical tempering

Chemically strengthened glass trial lecture As for the alkali salt melt in the molten state, the ions in the glass surface layer and the ions in the molten salt are exchanged, due to the volume change after exchange, a compressive stress layer is formed on the outside of the two surfaces of the glass, and a tensile stress layer is formed inside the glass, so as to achieve the effect of improving the strength of the glass. Chemically tempered glass has high strength, good thermal stability, no surface deformation, and can be properly cut after tempering is completed, without self-destruction.