Glass is fashionable and beautiful, and the glass material is relatively clean and environmentally friendly, so many people like to use glass to drink water. The only fly in the ointment is that drinking water from glass is faster in winter, so many people can only replace it with better thermal insulation performance. thermos cup. As we all know, the types of glasses are cumbersome, and there are even double-layer glasses, so how is the thermal insulation effect of this glass? Let's listen to what professional manufacturers have to say! glasscookware.

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Double-layer glass, as the name suggests, first made two walls, and then evacuated the air in it, so that the hot water in the inner stainless steel cup can maintain the original water temperature when it is evacuated. This kind of cup not only keeps warm, but also It can also keep the wall of the cup at a low temperature, so that we will not be heat-conducted by high temperature when using it, which is convenient for drinking water.

Double-layer glass is a glass that is divided into two layers when it is made, which can play the role of heat insulation, anti-scalding and heat preservation when in use. The reason why the double-layer glass can be kept warm is because when the sealing is produced, the glass tube needs to be melted at high temperature and then formed by a mold. Some of the air in it is released. But not all are released, so it can only be ordinary thermal insulation, not vacuum thermal insulation.

The double-layer glass is mainly for heat preservation and heat insulation. At the same time, it can also save ice cubes. Many glass manufacturers have double-layer ice buckets. The vacuum double-layer cup with a compartment is generally blown by hand, and the middle layer is not vacuum at all. There is an air outlet at the bottom of the outer layer of the cup to exhaust gas during the blowing process and prevent the cup from deforming and bursting. After the production is completed, the holes are sealed. There is gas in the middle. If it is a vacuum, it will make a loud noise after the cup is broken, and it will blow up glass fragments, which will easily hurt people.

Because the radiation of heat is the same as the radiation of light, the best solution to the radiation problem is to block it back. Mirrors are better for reflecting heat. There are three factors for the cooling of hot water: convection, conduction, and radiation. A thermos cup is covered to cut off the way of convection; the way of conduction is cut off by means of vacuum; only radiation is left, then the glass liner of the double-layer glass cup solves the problem of radiation.

Therefore, the thermal insulation effect of double-glazed cups is relatively good. This good thermal insulation performance can meet the needs of glass lovers to drink hot water in winter. Of course, everyone should pay attention when purchasing. Some manufacturers deliberately produce ordinary double-glazed quilts for profit, without any heat preservation and heat insulation treatment, and s