What is Semi-tempered Glass?

First, the basic definition of semi-tempered glass

Semi-tempered glass, also known as heat-strengthened glass. Semi-tempered glass between ordinary flat glass and toughened glass of a species, which combines some of the advantages of tempered glass, such as the intensity higher than ordinary float glass, ordinary float glass 2 times, while avoiding the tempered glass Poor flatness, easy to blew, once the destruction of the overall crushing and other undesirable weaknesses. When the semi-toughened glass is damaged, radial cracks propagate radially along the crack source, and generally there is no tangential crack propagation. Therefore, under the general condition of destruction, the whole body does not collapse.

Chinese name: 半钢化玻璃

English name: Semi-tempered Glass

Other names: Heat-strengthened Glass

Definition: A glass type between ordinary flat glass and toughened glass. Part of the advantages of both tempered glass, while avoiding the flatness of tempered glass, easy to blew the weakness.

Second, the difference between tempered glass

Semi-tempered glass is annealed glass through high temperature and quenching, the surface layer to form a compressive stress of less than 69 MPa, the mechanical strength of the glass several times increase, that is, semi-tempered glass. Semi-tempered glass surface stress: 24 ~ 69 Mpa. Its broken and ordinary glass, the product is characterized by the strength of semi-tempered glass is annealed glass more than 2 times. Safety: When the rupture fragments were radial, each fragment extends to the edge, not easy to fall off, safer, but does not belong to the safety glass. Deflection: semi-tempered glass than the tempered glass tempered glass smaller than the annealed glass. Thermal stability: Thermal stability is also significantly better than annealed glass, ordinary glass semi-tempered steel can withstand the temperature difference of about 75 ° C. Semi-tempered glass will not blew.

Tempered glass is annealed glass through high temperature and quenching, surface form a strong compressive stress, the mechanical strength of the glass several times increase, that is tempered glass. Tempered glass surface stress: 69 ~ 168 Mpa. It is characterized by broken small obtuse particles, the human body will not cause significant damage. Strength is 4 times more than normal glass strength and above. Has good thermal stability, ordinary glass tempering can withstand the temperature difference of about 180 ° C. The disadvantage of tempered glass is easy to blew.