In people's impression, glass is a fragile and transparent material, and because the fragments are sharp and easy to hurt people, the safety is not strong. However, with the development of science and technology, people can not only give full play to the natural advantages of glass, but also adjust its performance to make up for its shortcomings. This article will introduce how to make the glass water bottle, especially the production technology of double wall glass water bottle.
1. Technology of double wall glass water bottle.
The double wall glass water bottle is mainly used for heat preservation and heat insulation, and can also save ice. The insulated double wall glass water bottle is usually blown by hand, and the interlayer in the middle is not vacuum. There is an air outlet at the bottom of the outer layer of the glass water bottle, so as to exhaust gas in the blowing process, prevent the bottle from deformation and cracking, seal the hole after the production, and there is gas in the middle of the interlayer. If there is a vacuum in the middle, the broken double wall glass water bottle will make a lot of noise, and it will blow up glass fragments, which is easy to hurt people. There are sealing holes at the bottom of double wall glass water bottle. The sealing holes of double-wall glass kettle are usually under the handle of the kettle. The production is relatively complicated. Generally, it takes 5 to 9 people to produce normally.
2. How is the glass water bottle made?
The raw material of the glass water bottle is usually high borosilicate glass, which is fired at a high temperature of more than 600 degrees.
There are manual blowing, machine blowing and machine pressing. The blowing steps are as follows:
1): Supporting silk;
2): Blowing the ball;
3): Skin opening;
4): The opening and back sealing of the inner liner;
5): Connecting the mouth;
6): Back cover;
7): Labeling;
8): Annealing
