The selection criteria for tempered glass in decoration is very important. Tempered glass is a collective term for glass products that have been reinforced, have good mechanical properties, and have heat-resistant vibration properties. Tempered glass is divided into tempered glass and bent tempered glass, used for glass doors and windows in buildings, partition walls and glass curtain walls, and doors and windows for automobiles and ships. Next Xiaobian introduced the selection criteria for tempered glass and the characteristics of tempered glass.
Tempered glass selection criteria
1, bending degree
The curvature of flat tempered glass should not exceed 0.5% when bowed, and should not exceed 0.3% when it is shaped.
2, impact resistance
Take 6 tempered glass samples for testing. The number of sample destruction is not more than 1 block is acceptable, more than or equal to 3 blocks is unqualified. When the number of damages is 2 blocks, another 6 blocks are tested, and all 6 blocks must not be destroyed.
3, the debris status
Take 4 tempered glass samples for testing. The number of fragments in each 50mm x 50mm area must exceed 40, and a small number of long-sized fragments are allowed. The length is not more than 75mm, and the ends are not knife-shaped. The angle between the long strips of debris extending to the edges of the glass and the edges is not greater than 45°
4, the impact properties of the shell bag
(1) When the glass is broken, the sum of the mass of the maximum 10 pieces per sample must not exceed the mass equivalent to the area of ​​the sample 65 m2.
(2) When the drop height of the bag is 1200mm, the sample does not break.
5, bending measurement
Take a flat tempered glass product as a sample. The sample is placed upright in a vertical position, and a horizontal ruler is placed horizontally on the surface of the sample for measurement. Arch is expressed as a percentage of the ratio of the height of the arc to the length of the string. The waveform is expressed as a percentage of the ratio of the height from the trough to the peak to the distance from the peak to the peak or trough to the trough.
Tempered glass properties
1, security
When the glass is damaged by an external force, the debris will form a honeycomb-like obtuse-angled crushed small particle, which is not easy to cause serious damage to the human body.
2, high strength
The impact strength of tempered glass of the same thickness is 3 to 5 times that of ordinary glass, and the bending strength is 3 to 5 times that of ordinary glass.
3, thermal stability
Tempered glass has good thermal stability, can withstand 3 times the temperature difference is ordinary glass, can withstand 300 °C temperature changes.
Laminated glass selection criteria
1, under normal circumstances, the performance of thicker laminated glass will be better than thinner;
2. Two pieces of laminated glass of the same thickness have more layers than those with few layers;
3. The impact resistance of laminated glass will increase.
4. The laminated glass made of heat-reinforced glass has better impact resistance than ordinary annealed glass and tempered glass; the final consideration is the weight and area of ​​the glass back.
Editor's summary: The selection criteria for toughened glass and the characteristics of tempered glass are introduced here, and I hope to help everyone. If you want to know more about yourself, you can follow the information on this site.
Glass glass selection criteria
Pressure Gauge,Gauge Pressure Transmitter,Fuel Pressure Gauge,Digital Pressure Gauge
Wuxi Winsun Automation Instrument Co., Ltd , https://www.winsunwx.com