The body of the double wall glass water bottle is made of high-quality borosilicate glass, which is fired at a high temperature of more than 600 degrees Celsius. It has strong adaptability to temperature changes, is not easy to burst, has high transparency, is clear and transparent, and is very wear-resistant, smooth surface, with heat preservation and heat insulation functions. It is a relatively new type of environmental protection glass, which is more and more favored by consumers. Now let's learn about double wall glass water bottle.
1. What is a double wall glass water bottle?
There are many types of glass water bottle, generally divided into single-layer glass water bottle, double wall glass water bottle, crystal glass water bottle, glass office cup and so on. double wall glass water bottle, as the name suggests, is a glass in the production of two layers, in use can play a role in heat insulation. Its raw material is high borosilicate glass, food grade material, which is fired at a high temperature of more than 600 degrees. It is usually made of high borosilicate glass cup tubes, large and small inner and outer tubes fired by technicians under the sealing machine.
2. Is double wall glass water bottle insulated?
The double wall glass water bottle is mainly used for heat preservation and heat insulation, and can also store ice. The interlayer vacuum double wall glass water bottle is usually blown by hand, and the intermediate layer is not vacuum at all. There is a vent hole at the bottom of the outer layer of the bottle, so as to discharge gas during the blowing process and prevent the bottle from deformation and cracking. After the completion of production, the hole shall be sealed. There is gas in the middle. If it is vacuum, the bottle will make a big noise when it is broken, and it will blow up the glass fragments, which is easy to hurt people.