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How to choose glass, high borosilicate glass?
1. Popular science
The main component of ordinary glass is silica, which is an amorphous inorganic non-metallic material. Generally, it is mainly composed of a variety of inorganic minerals, such as: quartz sand, borax, boric acid, barite, barium carbonate, limestone, Tsuneishi, soda ash etc., and additionally add a small amount of auxiliary raw materials，glass cookware.
High borosilicate glass is a kind of glass with enhanced refractory performance. On the basis of ordinary glass components, 12.5~13.5% boron is added. In the manufacturing process, it is also necessary to add glaze water glass sand, soda water and lime. The strain temperature can reach 520 ℃, and the strength is also higher.
Compared with ordinary glass, it has a lower thermal expansion coefficient: (3.3±0.1)×10-6/K, which is only about 1/3 of ordinary glass. That is, the deformation is smaller after being heated, so it is less likely to break after being heated and cooled. Everyone should have this experience. In winter, pour boiling water directly into a thicker glass, and the glass will crack directly.
In addition, water resistance, alkali resistance, acid resistance and other properties are much stronger than ordinary glass. Of course, it does not mean that borosilicate glass will not be broken by heat, but it is not so easy to break compared to ordinary glass, so if you buy borosilicate glass, you still have to be careful.
The insulating tile of the space shuttle is also coated with high borosilicate glass, which shows how strong the high borosilicate glass is.
It is also because the performance is stronger than ordinary glass in all aspects, so the price is higher.
Among all the materials of the cup, the glass is the healthiest, because the main components of the glass are very stable, do not contain organic chemicals, and hardly react with anything; the second is because the surface of the glass is very special. Smooth and easy to clean.
2. How to choose
1. Transparency: If it is not colored glass, it should be colorless, especially transparent, without any impurities, and without visible glass lumps;
2. As a cup, it is not large in size and uses few materials, so bubbles are not allowed;
3. If it is not a special-shaped glass, check the roundness of the cup mouth and the bottom of the cup, whether it is a perfect circle, and whether the distance from each point of the cup mouth to the bottom of the cup is absolutely equal;
4. Whether the body of the cup is stamped, and if so, the workmanship is obviously rough;
5. Whether there is rubbing and scratches.
6. Check the certificate and main materials to see if it is ordinary glass or high borosilicate glass.
3. Maintenance and Maintenance
Whether it is glass or borosilicate glass, they have high hardness, but low strength, that is, they are not resistant to falling and are fragile, so it is best to handle them with care to prevent bumps.
It should be cleaned immediately after each use, not only to clean the body of the cup, but also to clean the lid, bottom of the cup and any other places that may hide dirt.
In particular, tea scales must be cleaned in time. Tea scales contain harmful heavy metals such as cadmium, lead, iron, arsenic, and mercury. If they enter the body, they will combine with nutrients such as protein, fat, and vitamins in food to form insoluble substances. hinder nutrient absorption.
For stubborn tea stains, it can be easily removed after soaking in vinegar and bleach.
After washing, it is best to buckle it upside down on the shelf, drain the water, and put it in the locker.
Four, glass, high borosilicate glass recommended
The following are a few glasses that I have carefully selected based on my understanding of glasses
Ordinary glass series
1. Bi Li Ke Mt. Fuji English Glass
In the scorching summer, having a few friends with friends, drinking cold drinks, admiring the snow-capped mountains, and bragging about the brilliance is a unique experience.
2. Bilike Simple Hammered Crystal Glass
Exquisite little things do live happily
3. Bi Li Ke hammer pattern household glass set - heat-resistant glass
Don't like the simple straight up and down? The one with the handle
4. Bi Li Ke Daisy Hexagonal Crystal Glass
Easy to clean, heat-resistant and explosion-proof, comfortable drinking water
5. Forbidden City Culture Palace Meow Appreciation Lotus Gilt Egg-shaped Crystal Glass
6. Bi Li Ke double-layer vacuum crystal glass thermos cup
7. High borosilicate glass series
1. Simple and elegant, the only shortcoming is that there is no handle, which is easy to burn
picture
2. The colorless and transparent cup body is equipped with a golden handle, which is simply not advanced.
8. Chrysanthemum bottom cup, pay attention, the bottom of the cup has great potential
9. Sculpting design, vivid image, strong three-dimensional sense
10. Bilike heat-resistant high borosilicate glass water cup
Blowing the air conditioner, drinking herbal tea, work easily all day
The main component of ordinary glass is silica, which is an amorphous inorganic non-metallic material. Generally, it is mainly composed of a variety of inorganic minerals, such as: quartz sand, borax, boric acid, barite, barium carbonate, limestone, Tsuneishi, soda ash etc., and additionally add a small amount of auxiliary raw materials，glass cookware.
High borosilicate glass is a kind of glass with enhanced refractory performance. On the basis of ordinary glass components, 12.5~13.5% boron is added. In the manufacturing process, it is also necessary to add glaze water glass sand, soda water and lime. The strain temperature can reach 520 ℃, and the strength is also higher.
Compared with ordinary glass, it has a lower thermal expansion coefficient: (3.3±0.1)×10-6/K, which is only about 1/3 of ordinary glass. That is, the deformation is smaller after being heated, so it is less likely to break after being heated and cooled. Everyone should have this experience. In winter, pour boiling water directly into a thicker glass, and the glass will crack directly.
In addition, water resistance, alkali resistance, acid resistance and other properties are much stronger than ordinary glass. Of course, it does not mean that borosilicate glass will not be broken by heat, but it is not so easy to break compared to ordinary glass, so if you buy borosilicate glass, you still have to be careful.
The insulating tile of the space shuttle is also coated with high borosilicate glass, which shows how strong the high borosilicate glass is.
It is also because the performance is stronger than ordinary glass in all aspects, so the price is higher.
Among all the materials of the cup, the glass is the healthiest, because the main components of the glass are very stable, do not contain organic chemicals, and hardly react with anything; the second is because the surface of the glass is very special. Smooth and easy to clean.
2. How to choose
1. Transparency: If it is not colored glass, it should be colorless, especially transparent, without any impurities, and without visible glass lumps;
2. As a cup, it is not large in size and uses few materials, so bubbles are not allowed;
3. If it is not a special-shaped glass, check the roundness of the cup mouth and the bottom of the cup, whether it is a perfect circle, and whether the distance from each point of the cup mouth to the bottom of the cup is absolutely equal;
4. Whether the body of the cup is stamped, and if so, the workmanship is obviously rough;
5. Whether there is rubbing and scratches.
6. Check the certificate and main materials to see if it is ordinary glass or high borosilicate glass.
3. Maintenance and Maintenance
Whether it is glass or borosilicate glass, they have high hardness, but low strength, that is, they are not resistant to falling and are fragile, so it is best to handle them with care to prevent bumps.
It should be cleaned immediately after each use, not only to clean the body of the cup, but also to clean the lid, bottom of the cup and any other places that may hide dirt.
In particular, tea scales must be cleaned in time. Tea scales contain harmful heavy metals such as cadmium, lead, iron, arsenic, and mercury. If they enter the body, they will combine with nutrients such as protein, fat, and vitamins in food to form insoluble substances. hinder nutrient absorption.
For stubborn tea stains, it can be easily removed after soaking in vinegar and bleach.
After washing, it is best to buckle it upside down on the shelf, drain the water, and put it in the locker.
Four, glass, high borosilicate glass recommended
The following are a few glasses that I have carefully selected based on my understanding of glasses
Ordinary glass series
1. Bi Li Ke Mt. Fuji English Glass
In the scorching summer, having a few friends with friends, drinking cold drinks, admiring the snow-capped mountains, and bragging about the brilliance is a unique experience.
2. Bilike Simple Hammered Crystal Glass
Exquisite little things do live happily
3. Bi Li Ke hammer pattern household glass set - heat-resistant glass
Don't like the simple straight up and down? The one with the handle
4. Bi Li Ke Daisy Hexagonal Crystal Glass
Easy to clean, heat-resistant and explosion-proof, comfortable drinking water
5. Forbidden City Culture Palace Meow Appreciation Lotus Gilt Egg-shaped Crystal Glass
6. Bi Li Ke double-layer vacuum crystal glass thermos cup
7. High borosilicate glass series
1. Simple and elegant, the only shortcoming is that there is no handle, which is easy to burn
picture
2. The colorless and transparent cup body is equipped with a golden handle, which is simply not advanced.
8. Chrysanthemum bottom cup, pay attention, the bottom of the cup has great potential
9. Sculpting design, vivid image, strong three-dimensional sense
10. Bilike heat-resistant high borosilicate glass water cup
Blowing the air conditioner, drinking herbal tea, work easily all day
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