Who will say what glass to use for the balcony guardrail

At present, the glass guardrails of balconies are mainly made of tempered glass as raw materials. Tempered glass belongs to safety glass. Tempered glass is actually a kind of prestressed glass, in order to improve the strength of the glass, chemical or physical methods are usually used to form compressive stress on the surface of the glass, and the glass first counteracts the surface stress when it bears external force, thereby improving the bearing capacity and enhancing the wind pressure resistance, cold and heat resistance, impact and so on.

Tempered glass features:

Strength improvement: The mechanical strength, impact resistance and bending strength of tempered glass can reach 4-5 times that of ordinary glass.

Improved thermal stability: Tempered glass can withstand huge temperature differences without breakage, and its ability to resist variable temperature differences is 3 times that of ordinary float glass of the same thickness.

Improved safety: After the tempered glass is strongly damaged, it quickly presents tiny obtuse particles, so as to ensure personal safety to the greatest extent.

According to the performance characteristics, glass is divided into: tempered glass, porous glass (that is, foam glass, with a pore size of about 40, used for seawater desalination, virus filtration, etc.), conductive glass (used as electrodes and aircraft windshield), glass-ceramic, opalescent glass (used for lighting devices and decorative items, etc.) and insulating glass (used as door and window glass) and so on.

The main raw materials for glass production are glass forming, glass adjusters and glass intermediates, and the rest are auxiliary raw materials. The main raw materials are the oxides, intermediate oxides and extra-network oxides that are directed into the glass forming network; Auxiliary raw materials include clarifying agents, fluxes, emulsifiers, colorants, decolorizing agents, oxidizing agents and reducing agents.

The glass production process mainly includes: raw material pre-processing. The block raw materials are crushed to dry the wet raw materials, and the iron-containing raw materials are treated to remove iron to ensure the quality of the glass.

Batch preparation. Melting. The glass batch is heated at high temperature in the pool kiln or crucible kiln to form a uniform, bubble-free liquid glass that meets the molding requirements.

Molding. Liquid glass is processed into products of the required shape, such as flat plates, various utensils, etc. Heat treatment.

Through annealing, quenching and other processes, the stress, phase separation or crystallization inside the glass is eliminated or generated, and the structural state of the glass is changed.