What's the difference between insulating glass and tempered glass?
1, insulating glass, that is, double-layer glass, with aluminum strips and desiccant in the middle. At present, insulating glass is widely used in building doors and windows, and insulating glass is basically used when sealing balconies. Is it necessary to toughen it? Let's first understand what tempered glass is.
2. Tempered glass belongs to safety glass. Tempered glass is actually a kind of prestressed glass. In order to improve the strength of glass, compressive stress is usually formed on the surface of glass by chemical or physical methods. When the glass bears external force, the surface stress is first offset, which improves the bearing capacity and enhances the wind pressure resistance, cold and heat resistance and impact resistance of the glass itself. Tempered glass has the characteristics of high impact strength (4-5 times higher than ordinary flat glass), high bending strength (5 times higher than ordinary flat glass), good thermal stability, smoothness, transparency and machinability. In case of super impact damage, the fragments are scattered in small particles without sharp edges and corners, so it is also called safety glass.
How to choose insulating glass?
First, look at the sign and check the certificate.
Building (safety) insulating glass means that the single piece of glass constituting insulating glass is 3C-certified safety glass (tempered glass or laminated glass). In 2006, building (safety) insulating glass was listed as a compulsory certification product for safety glass. Since the implementation of certification, many production enterprises have passed product certification and obtained 3C certificates. Enterprises should screen print or paste 3C marks on the products they sell, or add 3C marks on their small packages and accompanying documents (such as certificates of conformity). When buying a product, you should first check whether there is a 3C mark, and check whether the manufacturer of the product has passed the compulsory product certification (with a 3C certificate and valid), whether the model and specification of the product are within the competence of the enterprise that has passed the compulsory certification, and whether the certification certificate status is valid.
Second, look at the appearance and check the quality.
Check the appearance quality of products. There should be no stains, inclusions and splashing sealant in the insulating glass, and there should be no foreign matter in the spacer. The coating of sealant or rubber strip should be uniform and continuous, and firmly bonded with the glass surface, without air passages or bubbles. The width and depth of sealant should not be less than the requirements of GB/T 1 1944-2002 standard.
3. Send the samples to qualified testing institutions for testing to confirm the product quality.
There are many key raw materials and production processes for insulating glass products. The quality of raw materials and the control level of production process affect the final quality of products. Moreover, the key performance of insulating glass can not be identified from the appearance of the product, but can only be confirmed by testing. Therefore, it is suggested that when purchasing insulating glass, especially in large quantities, samples must be sent to a third-party testing institution for inspection and screening.
Four. Confirmation of energy-saving performance of insulating glass
In the design of curtain wall glass and building doors and windows, there are certain requirements for performance parameters such as visible light transmittance, shading coefficient, heat transfer coefficient and dew point of insulating glass. In order to improve the energy-saving effect of insulating glass, people choose different types of coated glass and colored glass to synthesize insulating glass. The original glass sheet and structure of insulating glass are different, and the energy-saving performance of products is also different. Therefore, before selecting insulating glass, the glass must be sent to a qualified third-party testing organization for testing and confirmation, so as to ensure that the performance of the selected product meets the requirements of energy-saving design or the performance requirements of energy-saving building windows. When selecting coated insulating glass with high transmittance and low radiation, it is difficult to be identified and detected because the coated surface is located inside the carriage. Therefore, the products provided by insulating glass suppliers must be sampled for inspection, and professional testing institutions should be invited to screen them to prevent shoddy or even fake ones.
Verb (abbreviation of verb) Handling, storage and use of insulating glass
Generally speaking, insulating glass is packed in wooden cases or container racks. Glass should be separated by plastic or paper, and glass and packaging should be filled with light and soft materials to prevent glass from being scratched. Insulating glass should be stored vertically in a dry room, and external impact should be avoided when handling and using it. When cleaning the glass, be careful not to scratch or scratch the glass surface.
What's the difference between insulating glass and tempered glass? In fact, the difference between insulating glass and tempered glass mainly lies in the material. Insulating glass is double-layer glass, and tempered glass is safety glass. They have different functions, but generally speaking, insulating glass and tempered glass are good choices for sealing balconies. But for the sake of safety, we should know more about the selection skills of insulating glass before buying, and only when we buy good quality glass can we use it with confidence.