How to distinguish tempered glass from ordinary glass

The difference between tempered glass and ordinary glass.

A simple way on how to distinguish tempered glass from ordinary glass.

With polarized sun eyes, you can see the colored markings, and you should not see them without tempering.

Turning the angle, it is actually to see whether there are wind pressure spots on the surface of the glass. You will see the glass on the entire surface of the plate irregularly deformed.

Look at the side is supposed to, when the glass is tempered, it will soften, the flatness will deteriorate because of the roller table, and when facing each other, the gap in the middle is an ellipse, so that it is obvious.

The flatness of tempered glass is worse than that of ordinary glass!

Simple way: put the two pieces of glass face to face vertically close together, observe the two long sides of the two pieces of glass next to each other, and see if there is an obvious gap between the long sides of the two glasses, if there is a gap, whether they are all in a certain arc, if so, it should be tempered. Note that it is face to face, not face to back.

It's physical. Otherwise, take a look at two exposed X-ray films.

When you look at the side at 70 degrees, you should see the tempered blue wind spots, and the flatness of the glass is significantly lower than that of the glass before it was not tempered.

The difference between tempered glass and ordinary glass.

1. The strength is different. The impact strength of tempered glass of the same thickness is 3-5 times that of ordinary glass, and the flexural strength is 3 5 times that of ordinary glass.

2. Security is different. The resistance to quenching and heating of tempered glass is 3-5 times higher than that of ordinary glass, and it can generally withstand temperature changes of more than 250 degrees, which has obvious effects on preventing thermal explosion.

3. Thermal stability. Tempered glass has good thermal stability, can withstand 3 times the temperature difference of ordinary glass, can withstand 300 temperature difference changes.

1. Carefully observe the edge of the glass, generally speaking, there is no small gap in tempered glass, even if there is one, it feels "softer" than the notch of ordinary glass when touched by hand, and ordinary glass often has a certain small gap on the edge, and the gap is sharp.

2. According to the standard glass, if it is ordinary glass, the scenery through the ordinary glass is very clear, and the scenery seen through the tempered glass is a little "deformed" (the distance between the person and the glass is about 2m, and it will be more obvious to see the distance), this is because the tempered glass needs to be softened in the processing process, so that it will have a small degree of deformation.

3. Hard objects (such as pliers, iron parts, etc.) can be used to scratch the edge of the glass, and ordinary glass is more empty and fragile than tempered glass.

Glass is formed by the melting of silica and other chemicals (mainly produced from soda ash, limestone, quartz). It is a silicate non-metallic material that forms a continuous network structure during melting, and the viscosity gradually increases and hardens during the cooling process, resulting in its crystallization.

The chemical composition of ordinary glass is Na2SiO3, Casio3, SiO2 or Na2O·Cao·6SiO2, etc., and the main component is silicate double salt, which is an amorphous solid with irregular structure. It is widely used in buildings to insulate wind and light, which is a mixture. In addition, colored glass is mixed with oxides or salts of certain metals to show color, and tempered glass is prepared by physical or chemical methods.

Transparent plastics, such as polymethyl methacrylate, are sometimes referred to as plexiglass.

The difference between tempered glass and ordinary glass.

Tempered glass will have an ellipse in the corner of the three C, if not, all the edges can be found with a glass knife cut and separated are ordinary glass, because tempered glass does not undergo special treatment, can not be cut after production, otherwise it will be broken into very small pieces.

Tempered glass is safety ridge macro glass. It is through the principle of material tempering, when the glass is heated to a state close to softening, it is instantaneously cooled, and the tempering stress layer is generated inside the glass, which increases the pressure resistance and impact resistance of the glass surface.

After crushing, the particles are the size of corn kernels, and there is basically no harm to the human body. Generally, tempered glass is not very straight and a little curved.

Ordinary glass, the surface of the pressure and impact resistance bottom, is easy to break, after the broken shape of anything, most of them are sharp knife-shaped, sharp edge, and have great damage to the human body. The glass is not the usual straight of the cherry blossom book, and there is no bend and closed bend.

Look with polarized sunglasses: you can see that the tempered glass has a colored brindle stool stripe, while the ordinary glass can't see it. Look at the fragments:

Tempered glass shards are granular and have no edges and corners;Ordinary glass has glass-like sharp corners. Look at the surface flatness: the surface of tempered glass will be uneven, and ordinary glass is relatively flat and smooth.

Look at the glass logo: see if there is a tempered 3C logo at the corners of the glass. <

1. Look with polarized sunglasses: you can see that the tempered glass has colored markings, but the ordinary glass can't see it.

2. Look at the fragments: the tempered glass fiber fragments are granular and have no edges and cornersOrdinary glass has glass-like sharp corners.

3. Look at the surface flatness: the surface of tempered glass will be uneven, and ordinary glass is relatively flat and smooth.

4. Look at the glass mark: see if there is a tempered 3C mark at the corner of the glass jujube filial piety glass, and the kind that can not be scraped off with the 3C mark is basically tempered glass.

Compared with ordinary glass, tempered glass is safer. When the tempered glass is broken, it will form uniform small particles, and the lethality is weak; After ordinary glass is broken, it forms a knife-like sharp corner, with a sharp edge and easy to hurt. The distinguishing method is to check whether the glass is small particles or sharp knives after breaking; With polarized sunglasses, you can see the colored markings in tempered glass.

The difference between tempered glass and ordinary glass.

The biggest difference between tempered glass and ordinary glass is that it is strong and not easy to damage. The specific differences are as follows:

1. Tempered glass is safety glass, which is cooled in an instant when the glass is heated to a state close to softening through the principle of material tempering, which produces a tempered stress layer for the inside of the glass, and increases the pressure and impact resistance of the glass surface. Usually tempered glass is not very straight and a little curved.

2. Ordinary glass, the surface of the pressure and impact resistance bottom, is very easy to break, after the broken shape of anything, most of them are sharp knife-shaped, sharp edges, and have great harm to the human body. The glass is relatively straight and has no bending.

Extended information: Methods for distinguishing tempered glass from ordinary glass:

1. First of all, about 50 cm away from the surface of the glass, look at the glass and slowly move your gaze sideways, if you observe distant wires or houses and other objects in the process of your sideways refraction by the glass after bending and deformation, this is likely to be tempered glass.

2. The second is a large piece of float glass, which can see whether its long side is straight, if there is a significant bending, it is very likely to be tempered glass.

3. Then there are obvious regular stripes on the surface of the glass, which must be tempered glass, which is determined by the tempering process.

4. The tempered glass has the CCC logo on it, if there is no one, it is ordinary glass or tempered glass from informal channels.