03-2. Glass / how to make glass

Following the last posting, today we will look at the glass manufacturing process!

 

First of all, the manufacturing process by which glass is made can be divided into 4 steps.

 

The manufacturing process is in the order of tank required ->

plate glass lifting and polishing -> slow cooling -> cutting and packaging.

 

A furnace to melt glass

 

First of all, melt the glass in the tank.

This tank must be made of bricks that can withstand temperatures

up to the melting point of the glass and are not eroded by the glass.

But if you use it for a long time, it runs away.

 

If the same brick is used over and over again,

the components of the brick (a brick made of aluminum oxide and silicon oxide) enter the glass.

Because the glass contains the same ingredients,

the bricks are replaced after cooling the tank to prevent mixing.

 

 

 

Next, it's time to take out the glass the tank has melted hard.

The main role when pulling out this glass is the debitose and rollers,

and these make the plate glass even thicker.

At this time, if the client engraves the desired pattern on the roller,

the pattern is engraved on the glass plate.

 

So, is it possible to engrave a special pattern that was not produced before?

Probably so. I'd love to put my design on the glass someday!

 

Also, if you put a wire mesh in a glass plate, a mesh plate is made.

However, some of the glasses made like this may be 100% perfect, but some are not.

There may be small irregularities, so if you need a flat glass without irregularities,

you need to polish to catch these irregularities.

 

After that, we have to work on slow cooling, but slowly cool down here.

Therefore, it means that the hot glass made of a certain thickness is gradually cooled with a plate.

If the cooling time is shortened in a hurry, it will not be strengthened evenly to the inside,

so it will inevitably crack and the strength will decrease.

 

 

Then, cutting and packaging are carried out, at which time the cutting is done with a diamond cutter. Have you ever seen that when you look at the edge of the glass, it shines smoothly?

Maybe if you look at a mirror or a glass plate with some thickness, you will see it clearly.

In addition, when packaging, it is not just stacked one by one,

but a thin sheet of paper between the glass plate and the glass plate.

Otherwise, the alkali components in the glass

will dissolve by water vapor and stick together.

Not only that, but there is also the purpose of preventing gins.

 

Maybe because I left the design department,

I always saw thick acrylic and acrylic plates sticking

to each other even though there was a vinyl in the middle when I went to the art studio.

The same thing happened when I took it and put the plastic on top of it

without knowing it from the fruit.

It may have a different property than glass,

but... is it static electricity...? :)

 

 

 

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Ah! I almost forgot.

We will also look at container manufacturing, not flat glass!

 

Molding from molten glass

 

Forming by injecting air into molten glass

 

Glass is not always produced as a plate.

There are many products made of glass,

even the vases that are already common around us,

and so are the cups.

 

Glass can be molded in that it becomes soft like jelly at high temperatures and can be shaped freely. Unlike the manufacture of flat glass, the main role is that the container is brewed and molded.

It is done by putting in the wind or putting it in a single frame like sweetening.

It is said that before about 3000 B.C., Egyptian murals depicted blowing glass with their mouths.

These advanced methods have been used since ancient times

 

 

 

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Isn't glass a very mysterious material?

It is very interesting that things that were soft like that are born into transparent and clean things.

If I have a chance, I want to experience the glass processing process starting

from melting the glass and design it with glass.

In the next post, we will look at the types and ingredients of glass!

 

Thank you again today :)