How to prevent tempered glass from blasting?

Recently, a Fuzhou netizen posted a microblog that the tempered glass in the home suddenly exploded, and she joked that it was hot. Since the summer, the situation of tempered glass self-explosion has occurred, which brings no small safety hazard. Why is summer tempered glass easy to blew? How can we prevent it? Furniture fans come to answer your questions.

Tempered glass self-explosion

Tempered glass is a deep-processed glass product. It is made by cutting, edging, washing and drying the flat glass according to the product requirements, then heating it to near the glass softening temperature and immediately cooling it sharply. It is very hard. The glass, but in the summer it is easy to blew. The reason is that in the summer, everyone often turns on air conditioners, and the indoor and outdoor temperature difference is too large, which easily leads to the self-explosion of tempered glass. But in fact, the uneven heat and cold is only an incentive. The root cause is that the glass is high in impurities and the quality is not up to standard. In addition, improper decoration and maintenance, and glass self-explosion are also related. It can be seen that the installation and daily maintenance of tempered glass is extremely important.

Guide to the purchase of tempered glass

The tempered glass for construction is one of the safety glass products certified by the National Certification and Accreditation Administration of China. Consumers should pay attention to the following points when purchasing tempered glass for construction:

View the appearance quality of the product

Tempered glass should not have cracks or corners; edge and scratches should not exceed the requirements of GB15763.2-2005. At the same time, the quality of the original glass used in the production of tempered glass should meet the requirements of the corresponding product standards. The defects in the appearance quality of the tempered glass caused by the inherent defects of the original glass should meet the requirements of the corresponding product standards.

Look at the quality of the lookup

In addition, look at the flatness of the flat tempered glass. For flat tempered glass products, GB15763.2-2005 standard requires that the bow bending should not exceed 0.3%, and the wave bending should not exceed 0.2%.

Look at the mark check certificate

Since the safety glass product certification was carried out in 2003, most of the building tempered glass manufacturers in the country have passed the product certification. The company must screen or paste the 3C mark on the product body for sale, or on its smallest outer packaging and accompanying documents. (such as the certificate of conformity) apply the 3C mark. When purchasing a product, first check whether there is a 3C mark, and check whether the manufacturer of the product has passed the compulsory product certification (with 3C certificate and valid) according to the company information, factory number or product certification certificate, etc. Whether the specification is within the scope of the company's ability to pass compulsory certification, and whether the status of the certificate is valid.

Look at the mark check certificate

Check the inspection report of the product

As a product that affects the safety of people and property, tempered glass for construction has always been listed as the focus of government supervision and inspection, and regular manufacturers are subject to inspection by the supervision department on a periodic basis. Therefore, the production enterprise should be able to provide the inspection report issued by the quality inspection department. Otherwise, the quality of the product will lack a basis.

Check the inspection report of the product

Installation of tempered glass

Line positioning

The scribing is mainly for positioning the pin hole plate of the revolving pin and the rotating shaft connecting plate of the floor spring. The tempered glass door has upper and lower metal rails, and the scribe line is completed in two metal rails.

Cutting tempered glass

If the tempered glass door does not meet the installation size, it is very troublesome to rework, so it is necessary to be accurate when starting the measurement. The measurement of tempered glass mainly includes two aspects of the width and height of the glass plate. When measuring the width of the glass plate, measurements were made at the bottom, middle, and top, respectively, and the minimum size was selected as the width of the cut. If the data obtained from the top, middle and bottom are identical, then 3-5 mm is reduced in the measured dimensions as the cutting width of the glass. Similarly, the height of the glass plate should include the installation location for inserting the upper and lower rails, so it is generally taken to cut less than 3-5 mm of the measured data.

Cutting tempered glass

After the glass plate is cut by size, it is usually necessary to chamfer the four corners. If the worker is chamfering on the spot, in order to prevent the collapse of the collapse, it is best to use a fine grinding wheel to slowly grind the operation.

Fixed bottom

The glass door bottom is made of two materials, one is a wooden bottom and the other is an aluminum square tube. The first stainless steel veneer can be fixed with wooden wedges and nails; if it is an aluminum alloy square tube, it can be fixed on the frame with aluminum angles, or the wooden wedge can be buried and fixed with wood screws. On the wooden wedge.

Installation of tempered glass door leaf

Use a glass suction cup to first pass the glass plate to the west and place the glass in place. Insert the upper part of the glass into the limit groove of the door frame, and then place the lower part of the glass plate in the opposite seam of the bottom cover. A wooden strip is nailed on the bottom of the wooden base, and a universal glue is applied to the wooden strip about 4 mm from the surface of the glass plate, and the glass plate is fixed on the bottom support.

Injection seal

The glass plate is fixed in thickness, and is sealed at the fixing portion of the top limit groove and the bottom plate, and at the seam of the glass plate and the frame column. Use a plastic sheet to flatten the glue on both sides of the glass and wipe off the residue. Be careful when wiping the remnants. Try not to use sharp objects such as blades.

Injection seal

Fixed door leaf up and down rail

After the height of the door is determined, the glass strips are inserted into the gaps on both sides of the crosspiece, and small wooden strips are inserted from both sides, tapping and stabilizing, and injecting glass glue into the gap formed between the small wooden strips, the door leaf glass and the crosspiece, The residue is treated as above.

Fixed moving door leaf

There is a positioning pin on the beam of the tempered glass door frame, and the adjusting screw of the positioning pin needs to be adjusted out of the plane of the beam by 1-2 mm. The glass door leaf is erected, and the hole position of the rotating pin connecting member in the lower rail of the door leaf is aligned with the rotating pin shaft of the floor spring, and the door leaf is rotated to fit the hole position on the rotating pin shaft. The door leaf is rotated by 90°, and forms a right angle with the door frame beam. The hole of the rotating connecting piece in the crosspiece of the door leaf is aligned with the positioning pin on the door frame beam, and the positioning pin is inserted into the hole by about 15 mm.

Maintenance and maintenance techniques for tempered glass

Pay attention to the corners of the protected tempered glass

If there is damage at the corners of the tempered glass, the risk of self-explosion of the glass increases exponentially. Since the stress points of the tempered glass are all concentrated at the corners, the protection of the corners is particularly important, and care must be taken when the tempered glass with broken corners cannot be handled.

Protect the corners of tempered glass

Avoid uneven heat and cold

If, under extreme conditions, high temperature and low temperature are applied to both ends of a piece of glass, then 90% of the glass will self-explosion. For example, when the incandescent lamp is lit with cold water, the glass of the incandescent lamp will rupture. Although this situation will be small for tempered glass, it is not afraid of 10,000.

Extended reading: glass furniture is very delicate and careful

Avoid letting tempered glass be under pressure for a long time

For the sake of indoor beauty, many families will choose to use tempered glass as the table and coffee table for the tabletop. Generally, the tempered glass is subjected to pressure between 70mpa and 100mpa. This pressure is multiplied by the force of the glass. Converted into item quality = (pressure * area) / 10, if not necessary, do not put heavy objects on the tempered glass table for a long time, to avoid the pressure value reaching the critical point and causing the tempered glass to break.

Avoid letting tempered glass be under pressure for a long time

Do not use sharp, hard objects to strike the corners of the glass

Since the stress point of the tempered glass is concentrated at the corners, once the corners are broken, the probability of rupture of the tempered glass will increase, so for the safety of the home, do not use sharp, hard objects to strike the corners of the tempered glass.

Keep away from acid and alkali substances <br> Avoid contacting tempered glass with alkaline substances such as sodium hydroxide (NaOH) and hydrofluoric acid (HF). The glass is essentially silicon dioxide (SiO2), which will chemically react with the above substances. .

Keep away from acid and alkali substances

The toughness of tempered glass is better than ordinary glass, but if it is used improperly or lacks maintenance, there will be danger of bursting and breaking. It is necessary to look at the quality in the purchase and maintain it daily.

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Nantong Zhuoluo International Trading Co., Ltd , https://www.zlhomedecor.com