I was a village chief in a primitive society

Chapter 325: Utensils. (3 more please customize)

"Is it so magical? This glass is really a good thing."Yu Ying sighed.

You must know that it is very dark during the day. If you don't light a fruit oil lamp, you can hardly see clearly.

Because the wooden house has no windows, all the light cannot come in, so it is difficult to see clearly. It's gray.

It costs a lot to light the fruit oil lamp for half a day every day, which is also very wasteful.

In addition, the fox-eared lady has to sew some linen clothes every day. If the light is dim, you can't see clearly at all, even your eyes. She has to get very close.

Over time, her eyesight has not become that good. Before, her eyesight could be said to be very good.

Now, as long as she is a little further away, she can't see clearly, so she has to squint her eyes slightly. Look.

She thought she was sick a few times, but she felt too embarrassed to bring it up.

But now that she heard that something like glass could make the wooden house as bright as daytime, it became clear to her.

Guess for sure It was because she was in a dimly lit wooden house every day that she couldn't see clearly.

Now that there is glass, what she can see must be clearer. Thinking of this, she couldn't help but feel relieved.

It must be because of the light problem here, so she I can't see clearly. As long as I replace it with glass, everything will be fine.

"There will be an extra large window on the second floor, and you can see more clearly from the window."Su Bai said lightly.

Because in his design blueprint, a floor-to-ceiling window was designed on the second floor. The second floor will be the place where they will work, so they need to set up a floor-to-ceiling window to see more clearly.

And this floor-to-ceiling window The design is also very large, it looks like a wall

"Great, I'm already looking forward to what the glass looks like."Yu Ying said happily

"Tap tap tap......"

More than an hour later, they returned to the tribe and were ready to start firing glass.

Su Bai took out all the ingredients that he had prepared in the wooden house. He used a scale to weigh all the ingredients according to the ingredients made of glass.

Although the balance scale cannot guarantee 100% accuracy, it can still guarantee 90% accuracy.

Niujiao Niang and others were watching curiously, and no one dared to come forward to disturb them for fear of doing something wrong.

Su Bai quietly mixed all the glass-making ingredients together, and then started stirring evenly.

After more than ten minutes, he stopped shaking after making sure that the mixture was completely mixed.

"Wu, is this enough? Yanhua asked curiously.

But she didn't see anything transparent. Didn't it mean that all glass is transparent?

"Hahaha......Not yet, it’s just the beginning and it’s far worse."Su Bai smiled.

He took the mixed ingredients in his hand and came to the furnace. The next step in making glass is to melt.

The glass batch materials are heated at high temperature (1550~1600 degrees) in the furnace. ) is heated to form a liquid glass that is uniform, bubble-free, and meets the molding requirements.

This step is not a simple task, because the high temperature for firing glass must reach 1500~1600 degrees.

And the ordinary temperature is not that High, which means they have to continuously add air from the kiln.

Just like the last time they fired iron, they need to use a blower to continuously transport air inside to ensure that the temperature in the kiln reaches 1500~1600 degrees.

This is It is a very labor-intensive job that requires hundreds of people to be replaced constantly.

Because each person will be exhausted after using the blower for about three or four minutes. At this time, he can only replace someone else.

Because the temperature in the kiln cannot be reduced. If it comes down, all the previous efforts will be wasted, so air must be continuously pumped into it.

Su Bai put the prepared glass raw materials into a porcelain basin, and after people put it in, everyone started to light the fire.

"crackling......"

There was a continuous sound of burning in the kiln, and the original light yellow fire gradually turned into an orange-red fire.

Even if they were not close to the kiln, they could still feel the heat coming directly from them, so they all retreated a little far away.

"Wu, is the making of glass this time the same as the making of iron last time? As long as it's fired, it'll be fine, right? Yanhua asked curiously.

Her big red eyes looked straight at the furnace, as if she was afraid that the furnace would run away.

"It's not that simple yet, and the next work is also more troublesome."Su Bai said seriously.

It would be great if it were really that simple to make glass, but ideals are often beautiful, and reality is skinny.

After those raw materials are turned into liquid glass, they need to be heat treated. Annealing, quenching and other processes eliminate or produce stress, phase separation or crystallization inside the glass, and change the structural state of the glass. The last step is annealing, which is to maintain the temperature within a certain temperature range or slowly cool down for a period of time to eliminate Or reduce the thermal stress in the glass to the allowable value.

However, the latter two steps are not very demanding. They mainly do this to make some shaped glassware.

Su Bai does not know how to make glassware yet, but The tools needed for the glassware have already been made.

When the time comes, he will ask the tribe's hills or ancient trees to come, and he has also drawn some drawings in advance.

Just let them make the glassware according to the drawings. With their years of skill and skilled hands, they must be able to make glassware.

But at this stage, it is more important to make window glass, and those glassware are not used yet.

The main purpose of glassware is to use For chemical experiments, Su Bai has no need for this yet.

If it is used as a tool, the porcelain bowls and basins in the tribe are enough.

In addition, the rainy season is coming soon, so the most important thing now is to use it as a tool. The glass for the windows of all cement houses was fired.

After more than an hour, the flames in the kiln became higher and higher, and all the raw materials inside began to melt.

Gradually, the raw materials turned into liquid glass. The color looks a bit gray

"Okay, take it out and pour it on the mold."Su Bai ordered

"yes."The preparatory soldiers nodded, and they all stopped adding air to the kiln.

They took out the porcelain basin inside, and then poured the liquid glass into the mold prepared in advance.

There was nothing special about that mold. , it is a very large square.

This square has the length, width and height of the concrete house windows measured in advance. If liquid glass is poured into it, one side of the glass will be made..........................................

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