What is the difference between a few hundred pieces of glass?
When we buy a water cup, the glass will be preferred by many people.
One of the glass materials is stable, no harmful substances will be precipitated, and chemical reactions will occur with the drink. Secondly, the glass surface is smooth and easy to clean. 
The price of the glass from, tens to hundreds, or even thousands of dollars. Where are they different? How can we judge the quality of the glass you bought?
The following 5 o’clock may help you effectively distinguish.
01 Look at the material
The more common glass cup materials on the market, generally include
Ordinary sodium and liquid glass, high borosilica glass, crystal glass
Check the specific materials on the packaging box of the cup.
The temperature -resistant performance is relatively average. Before use, you must confirm the heat resistance range.
High borosilica glass
Pure and translucent, its thermal expansion coefficient is only one -third of the ordinary glass. It can withstand the instantaneous temperature difference of the sudden change. It is a recognized and safe glass material.
Most of them are used in high cups, with lead crystal glass and non -lead crystal glass. The former is harmful to the human body! [Don’t look at] The sound of the latter’s light -bombing cup is pleasant, and the color is relatively bright and clear.
02 Look at purity
If the glass material is impure, stripes, small bubbles, and impurities precipitate on glass drinks.
——The coarse lines on the surface of the glass can be felt, and fine lines need to be seen in front of the light. [Hush]
——S small empty hole formed by the air in the glass. According to the cause of formation, it can be divided into foam and operating bubbles. “Operation Bubble” generally appears on the surface of the glass, and “bubbles” are hidden in a relatively deep place.
According to the national QB/5035-2017 “Two-layer Glass Cup” industry standards, the cup body is not allowed to have bubbles, but there are strict requirements for bubble diameter and quantity. 0.5mm ≤ diameter ≤ 1.5mm, there is one, 3, and three dense bubbles together.
——The white granular silicon sand or other granules in the vitreous body.
Due to the different expansion coefficients of sand and glass, a little collision or because of temperature changes, it may be removed with the vitrer, causing glass cracking. [Petrochemical]
03 See if the styling is standard
The phenomenon of non -standard styling is generally there are the following categories:
1. The surface of the cup is not smooth.
2. Observe the light on the light, there are cracks, marks, etc.
3, the geometric shape is not correct, it should be round, it should be upset, it should be straightforward.
If it is not an alien glass, the cup mouth and the bottom of the cup should be a regular and horizontal round.
Glass products are not standard, which not only affects beauty, but also is easy to damage.
04 See if the thickness of the cup is uniform
Observe the cup to light. If the light feels consistent and integrated in one place, it means that the thickness is consistent; if the difference between the light and darkness of each place is too large, the thickness is inconsistent.
If the cup is too thick, the heat spreads slowly and easy to crack; the cup is too thin, the strength is low, and it is not strong.
Generally, the bottom of the cup will be slightly thicker, and the wall is slightly thinner than the bottom.
05 Last look at the processing accuracy of the cup
If the above 4 points are satisfied, the quality of the cup is basically [OK].
On this basis, some details of the details that improve the user experience can truly test the producer and patience of the producer. It is also whether a brand truly pursues good products. [awesome]
After all, the time, labor and material costs of details will increase.
1. Cup lid. Exquisite processing, high accuracy, fits the cup body.
2. Cup -mouth thread. The cup mouth is round and thick, the thread is smooth and standard, the spinning is smooth, no noise, and the wrist is effortless.
3. Back flow cover. The material selection is high -quality, no odor, and does not have a chemical reaction with the water droplets. At the same time, the water droplets can return to the cup along the cup lid. It is not easy to drop the cup.
4. Cup bottom. For example, thickening the bottom of the cup, pulling out water ripples with special processes, etc., can improve the practicality and beauty of the cup.
According to the above methods, you can help you judge the quality of the glass you bought, or you can also choose according to the above method before buying.
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