Sand, the main component, should be timely (silica glass is a strange substance, the main component is
The manufacturing process is as follows
Cooperation with others
The crystals formed after firing at high temperature (1300℃) and cooling are hard, wear-resistant and high-quality.
And its widespread use has a long history. Prior art for manufacturing glass
It has more and more uses, including clocks, utensils, doors and windows,
As well as electronic components, space technology and other high technologies, glass is indispensable. We have the most contact every day.
Thick ones are used for doors and windows, and thin ones are used for clocks and watches and medical tests. Its manufacturing method is to use horizontal or traction method (also known as float method) and vertical traction method to manufacture glass slurry in a melting furnace. After the slurry is discharged from the furnace, it is also cooled by the system. After the cooling is completed, it becomes "slurry"
」,
The thickness mainly depends on the traction speed,
The faster the speed, the thinner the thickness can be made. Although ordinary flat glass looks bright and transparent from the front, it is slightly cyan from the side near the edge, because the color of glass depends on the main raw materials for making glass-
Purity and iron content. Usually, the thin glass used in the watch industry is of high quality, but its value is more expensive. The main difference is that the quartz sand used is superior and the iron content is very low (generally below three ten thousandths).
Most of the raw materials for glass are natural minerals, so to make glass, all kinds of minerals must be available first.
Crushing, processing into powder, and then making according to the composition of glass.
, become
Melting to form molten glass. Qualified glass liquid flows through the feeding pool and flows out from the feeding port to form a stream. For medium alkali glass, the frit temperature is generally1150 ~1170℃.
1200 ~ 1220℃. The wire is cut nearly 200 times per minute to form a ball blank. Spherical billet warping
Ball distributor, and rolled into different balls by the ball distributor.
, and then fall in the same direction through three rotations.
In the spherical groove. Ball blank in
Upper rotation and itself
Function, and gradually form a smooth and round.
. Its diameter is determined by the thickness, speed and scissors speed of glass flow.
leave
The temperature was still high at that time. In order to prevent the ball from sticking, it is necessary to use a cold ball tray or a serpentine runway for cooling. decrease
Caused by the temperature difference inside and outside the ball.
Subject to
Let it cool slowly. And then stored in the ball bin for later use.
.
There are good and bad glass manufacturing equipment, like large enterprises, a set of equipment alone is worth hundreds of millions, at least millions. Reaction equation: Na2CO3+SiO2 = Na2SiO3+CO2.
CO2+2NaOH=NaCO3+H2O
The main component of glass, Na2SiO3, can't be made by itself ~ ~ ~ ~ I hope to use it.