What to do if the tempered glass of Apple 6 is broken

The expansion of nickel sulfide inside the tempered glass is the main cause of the self-explosion of the tempered glass. After the glass is tempered, the surface layer forms compressive stress. The inner core layer of the plate is tensile stress, and the compressive stress and tensile stress together form a balanced body.

Glass itself is a brittle material that is resistant to pressure but not tensile resistance, so most of the glass breakage is caused by tensile stress.

When the phase transformation of the nickel sulfide crystal in the tempered glass occurs, its volume expands, and the expansion of the nickel sulfide in the tensile stress layer of the glass core causes greater tensile stress inside the tempered glass, and when the tensile stress exceeds the limit that the glass itself can bear, it will lead to the self-explosion of the tempered glass. Foreign studies have proved that nickel is brought into the main glass material quartz sand or sandstone, and sulfur is brought in by fuel and auxiliary materials, which is burned and melted in 1400 1500 high-temperature furnaces to form nickel sulfide.

When the temperature exceeds 1000 °C, nickel sulfide is randomly distributed in the molten glass in droplets. When the temperature drops to 797, these droplets crystallize and solidify, and the nickel sulfide is in the -Nis crystal phase (hexagonal crystal) at high temperatures. As the temperature continues to drop to 379, the crystalline phase transitions to a low-temperature -nis (trigonal crystal system) with accompanying volume expansion.

The speed of this transition depends on the percentage content of different constituents (including Ni7S6, Nis, etc.) in the nickel sulfide particles, as well as the temperature around them. If the nickel sulphide phase change is not completely converted, the process continues even at natural storage and normal use temperatures, albeit at a very low rate.

When the glass is tempered and heated, the core temperature of the glass is about 620, and all the nickel sulfide is in the -nis phase at high temperature. Subsequently, the glass enters the wind grating and the nickel sulfide in the glass undergoes a phase change at 379. Unlike float annealing kilns, the tempering quenching time is very short, and it is not too late to convert to the low-temperature -NIS state, and the nickel sulfide phase is "frozen" in the glass in the high-temperature state.

Rapid quenching tempers the glass to form a stress-uniform balance body with external pressure and internal tension. In the tempered glass, the nickel sulfide phase transformation continues at a low speed, and the volume continues to expand and expand, and the force on the surrounding glass increases. The core of the tempered glass plate itself is a tensile stress layer, and the volume expansion of nickel sulfide in the tensile stress layer also forms tensile stress when the phase transformation occurs, and these two tensile stresses are superimposed together, which is enough to cause the fracture of the tempered glass to explode.

To put it simply, nickel is very small at high temperatures, but it becomes larger at room temperatures. The nickel element of tempered glass will become smaller during the heating process, but it will not have time to return to the size of the normal temperature state when it cools rapidly, so the tempered glass will explode spontaneously. The state stipulates that the self-explosion rate of tempered glass is 3.

What else can I do, I can change the screen, but it's super expensive. I guess change the phone or add a shell directly, if there is no obsessive-compulsive disorder.

If it doesn't affect the use, don't repair it, if you can, go for it.

The glass behind the iPhone is broken, what to do? If the glass behind the Apple phone is broken, it can only be replaced by me after the sale.

In general,Tempered filmThere is a possibility that the glass will fall off when it explodes. Although tempered glass.

The breaking strength is much higher than that of ordinary glass, but the slag after cracking is generally a honeycomb-like obtuse angle.

Break small particles, and it is not easy to cut or scratch people, which reduces the damage to the human body to a certain extent.

Advantages of tempered glass:

1. Compared with ordinary glass, the strength of tempered glass has been increased several times and the bending resistance.

2. The use of tempered glass is safe, its bearing capacity is increased and the fragile properties are improved, even if the tempered glass is damaged, it is a small fragment without acute angles, which greatly reduces the damage to the human body.

3. The quenching and heating resistance of tempered glass is 3 5 times higher than that of ordinary glass, and it can withstand more than 250 temperature differences, which has obvious effects on preventing thermal explosion.

Relevant standardsGB T 9963-1998 "Tempered Glass".

tempered glass".

GB T 531-92 "Vulcanized rubber.

Shore type A hardness test method".

GB 1216-85" O.D. Micrometer.

GB 4871-1995 "Plain Flat Glass".

GB "Test Method for Optical Properties of Automotive Safety Glass".

GB 11614-89 "Float Glass.

JC T 677-1997 "Test method for simulated wind pressure under static load for uniform distribution of glass".

Summary. Because of the special processing technology, tempered glass makes it very strong and self-contained, so after the tempered glass is broken on the window, it is not easy to fall down, but the impact is too large and it will also fall, when the glass is damaged by external force, the fragments will be similar to honeycomb obtuse angle broken small particles, not easy to cause serious harm to the human body.

Because of the special processing technology, tempered glass makes it very strong and self-contained, so after the tempered glass is broken on the window, it is not easy to fall down, but the impact is too large and it will also fall, when the glass is damaged by external force, the fragments will be similar to honeycomb obtuse angle broken small particles, not easy to cause serious harm to the human body.

If the tempered glass on the window bursts, can it still withstand the wind and rain and not fall down?

Yes, the tempered glass will collapse when it is broken, and all that is scattered are small particles of glass fragments, which will not cause great harm to people, so it is also called safety glass.

If you fall from the seventh floor, will you hit someone?

Yes. Hope it helps, dear

If you hit someone, it won't be as serious as ordinary glass hitting someone, right?

In fact, as long as it hits someone, it's quite serious.

Hope it helps, dear

I live on the seventh floor, installed is hollow double-layer tempered glass, just a piece of glass on the window of the house self-exploded, installed is double-layered, is the outside of the glass self-explosion into a honeycomb shape, downstairs is just the sidewalk, but also parked the car, so afraid of smashing people, contacted the manufacturer, said that it takes 10 days before the glass replacement, but these days I am afraid of falling, I don't know if there is a good solution?

It can only be removed as soon as possible.

Hope it helps, dear

tempered glass". After shattering on the window, it is not easy to fall down, but it can fall off if the impact is too large.

Because the perimeter of the tempered glass is a weakly tempered zone, its strength is even weaker than that of non-tempered glass, but this part of the damage is likely not to cause the immediate cracking of the glass, but to change the internal stress of this piece of glass. When the upper wall is used, its internal stress gradually changes, causing the glass to break.

Precautions and key points for glass:

The main component of glass is silica.

and other oxides. Raw materials include barite, feldspar, and quartz sand.

Barium carbonate, limestone, soda ash.

Borax, boric acid, etc., and the types of auxiliary raw materials include: clarifying agent, emulsion, colorant, decolorizing agent, oxidant, reducing agent, co-solvent, etc.

Glass is widely used in buildings to keep wind and light out, which is a mixture. In addition, there are colored glasses that are mixed with oxides or salts of certain metals to show color, and tempered glass that is prepared by physical or chemical methods. Sometimes put some transparent plastic (such as polymethyl methacrylate.

Also known as plexiglass.

The above content reference: Encyclopedia - Glass.

tempered glass". The burst will not fall off immediately, but it will still be dangerous after a long time, so it is recommended to replace it as soon as possible.

The automatic explosion of tempered glass without direct mechanical external force is called the self-explosion of tempered glass, according to industry experience, the self-explosion rate of ordinary tempered glass is about 1-3. Self-explosion is one of the inherent properties of tempered glass.

Temperedglass reinforcedglass belongs to safety glass.

Tempered glass is actually a kind of prestress.

Glass, in order to improve the strength of glass, usually use chemical or physical methods to form compressive stress on the surface of the glass, and the glass first counteracts the surface stress when it bears external force, so as to improve the bearing capacity and enhance the wind pressure resistance, cold and heat resistance, impact and so on. Note the difference with FRP.

1. Replace the screen for repair, but the screen is broken according to the situation, one is the broken glass of the outer screen.

2. However, the touch function and display are completely normal, in this case, the external screen can be replaced separately.

3. There is also a situation that the LCD or touch of the inner screen bursts, and once the display or touch function is abnormal, the entire screen must be replaced.

Because the tempered film is not all-inclusive, it mainly plays three roles: explosion-proof and anti-scratch, skin care, and oxygen eye.

For heavy knocks or drops, tempered glass can only ensure that the screen will not splash if it is broken, but it cannot completely guarantee that the mobile phone screen will not be broken. And the protection effect of tempered film on mobile phones is not very good. Buy a better phone case, which can also play a better role in protecting the phone screen, and can also play a good cushioning role while the phone accidentally falls to the ground.