Safety Glass Does Not Equate To Glass Safety

Safety glass does not equate to glass safety. The safety and unsafety of glass is closely related to the production of glass, the use of glass and the environment of doors and windows. Failure in glass production, incorrect use of glass, unusual temperature and environment, etc. may cause glass problems. The latter two situations are more common.

Generally speaking, if the thickness of door and window glass is not up to standard, the glass area is too large, or the placement is unreasonable, it may reduce the strength of the glass and increase unnecessary safety risks. In addition, human or environmental factors may also cause glass to burst, which requires constant attention.

Keyword 1: Glass self-explosion

The self-explosion of tempered glass as we know it is only a small probability event (generally speaking, the self-explosion rate of tempered glass is about 3 - 5 ‰), and it is not easy to hurt people after the tempered glass is broken, so there is no need to be overly nervous. . As long as we can detect and deal with it in time, we can reduce the risk to a lower level.

In general, the reasons for the self-explosion of tempered glass are roughly as follows. You may wish to take a look.

1. There are visible defects or impurities in the glass (such as stones, sand, bubbles, inclusions, gaps, scratches, burst edges, etc.) that cause self-explosion;

2. Excessive nickel sulfide (NIS) impurities cause the tempered glass to self-explode (the diameter of the nickel sulfide that causes self-explosion is between 0.04 and 0.65mm, and the average particle size is 0.2mm);

3. The self-explosion of tempered glass is also affected by other factors: too high outdoor temperature, unreasonable glass slotting and drilling, poor quality of the original glass, uneven thickness (such as embossed glass, uneven stress distribution of bent tempered glass, etc.) .

Keyword 2: Glass purchase

Only when you buy it is safe can you use it with confidence. When we buy doors and windows, we must understand not only the details and functions of the door and window products, but also the "origin" of the door and window glass.

If we want glass products to be safe, we should know: the workmanship (equipment and operations) and supply chain (product material quality) of the glass deep processing factory determine the quality of the finished glass used in doors and windows. Insulated glass with poor quality is prone to problems such as spacer corrosion, molecular sieve precipitation, sealant aging and falling off, and water vapor entering the glass after one to two years of use. These problems will cause the insulating glass to lose its core thermal insulation performance, and may also cause the glass to be bonded weakly, ultimately creating safety hazards.

Therefore, when choosing doors and windows, we can accordingly understand whether the original glass of the door and window comes from a well-known brand, and whether the 3C logo is printed on the glass surface (whether it is a brand can be searched for its brand information online). In addition, we can also learn from the merchant about the materials or brands of glass sealant, spacer strips, molecular sieves, laminates and other details; if necessary, we should also consult the merchant about the warranty period of the glass? What are the solutions when problems arise?

Keyword 3: Glass area

We all know that the safety index of glass is much lower than that of walls, so the glass of home doors and windows should not be too large unless necessary. The larger the glass area, the greater the pressure of the profile structure, and the greater the chance that doors and windows will bounce and shake; and as the floor-to-ceiling window glass area increases, the thickness and strength of the single piece of glass must also increase accordingly. Give the glass sufficient resistance to wind pressure. Please refer to the specific details: Large-area glass windows shake when pushed, and panic when shaken? Only by identifying the problem can the doors and windows be more secure.

We need to do enough homework before purchasing doors and windows: when the area of fixed glass in doors and windows is ≤2㎡, the thickness of the glass can be 4-5mm; when the doors and windows have large pieces of glass (≥ 3㎡), the thickness of the glass should be at least 6mm. (Standard specifications are 4㎡--8mm, 5㎡--10mm, 6㎡--12mm).