CHAPTER 281: CHAPTER 173: SCALE ARMOR WITH CHAIN LINER (HAPPY NEW YEAR)

Kuisi had said before that after the production, it had to pass her inspection.

As the lord of the entire territory, Master Lynn naturally must use the best quality items!

Previously there was no choice, but now it must match the master’s status.

Now even Master Lynn says it’s very good.

Then the quality of this batch of glazed stoneware is certainly no problem.

Before Beo could speak, Lynn spoke first, "Beo, I need you to make other items."

"Glazed glass, I need you to assign some apprentices to make glazed glass."

Layla, just finished with her tasks, walked over and happened to hear Lynn’s words.

Layla looked at Beo with doubt, waiting for Beo’s response.

Beo’s face showed a hint of embarrassment, he said, "Master, if it’s pottery, I can do some... "

"This glazed glass... my wife and I truly haven’t made it before."

Lynn nodded, "I know, but I can teach you how to make it!"

The glaze industry, due to its outdated production technology, leads to high production costs, typically serving noble churches or great merchants and so on.

Hence, not many people can make glazed glass.

Listening to Lynn’s words, Beo and Layla couldn’t help but exchange glances.

Such a craft as making glazed glass, could Master Lynn also do it?

They had heard from others before.

Previously, Master Lynn led them to build clay kilns and made earthen pottery!

Bell responded, "With you teaching, Master, there will definitely be no issues."

Immediately.

Lynn gathered all the apprentices from the pottery workshop.

Because making pottery doesn’t significantly improve the town, there are only a hundred apprentices in the entire workshop.

However, with an existing workshop, it’s much faster than building a new glass workshop and starting the firing process.

Lynn directly distributed these hundred apprentices.

The first group of twenty went to the Acadia River shore to collect finely granulated silica sand.

After collection, they were to screen it.

The second group of twenty went to the kitchen to transport back wood ash, then put it into clay pots, added plenty of river water, and let it soak.

They then fished out all wood ash impurities from the water jars and heated the potassium salt-containing wood ash water for evaporation.

Until finally, potassium salt was derived.

And potassium salt can lower the melting point of silica sand.

The third group of twenty, Lynn had them find chunks of limestone, crush them into small pieces.

Limestone from limestone can enhance the quality and stability of glazed glass!

The fourth group of twenty used clay to make molds for glazed glass, which isn’t difficult to make.

Just use clay and mud to create an arch-shaped mold the size of a window opening.

The thickness of the glazed glass can be adjusted according to the amount of poured glaze liquid.

The fifth group of twenty used red brick, hydrated lime sand to modify and adjust the kiln into a furnace.

There’s a difference between firing pottery kilns and firing glazed glass furnaces!

With Lynn’s command, all apprentices dispersed, following Lynn’s different assignments to carry out various tasks.

Watching the pottery workshop become empty, Beo and Layla approached Lynn.

They hesitantly asked, "Master, what should we do?"

Lynn glanced at them, "You’re responsible for mastering the entire process of making glazed glass!"

The craft of making glazed glass is not difficult, Lynn can easily dispatch these apprentices.

However, this merely organizes them.

They do not understand the entire process of making glazed glass.

Therefore, Lynn needs Beo and Layla, as foremen, to learn and master the entire process of making glazed glass.

Even when he’s not in the workshop, Beo and Layla can independently instruct these apprentices to make glazed glass windows or other glazed glass products.

A short while later, apprentices responsible for transporting red bricks and hydrated lime sand returned.

Lynn led Oubei and Layla directly to stand before a kiln.

Lynn explained the key points of firing glazed glass as he adjusted bricks on the furnace.

From construction of the furnace, to principles during firing, and controlling temperature...

From material selection for glazed glass, to flux production, and the role of added limestone...

From cooling after successful firing, to annealing the glass products...

Even finally, glazing includes adding some iron metal into raw materials to create colored glass, and engraving or polishing on glazed glass.

Lynn explained everything in detail.

Because Lynn doesn’t just want Beo and Layla to learn to make glazed glass windows.

In the future, many aspects will require glazed glass products.

For example, for laboratory instruments or borosilicate glass requiring high chemical stability.

For colored glass with colors.

Even for making lenses, prisms, such high-precision optical elements!

However, all of this must start from basic ordinary soda-lime glass.

Until night fell, at quitting time.

Lynn left the pottery workshop.

Regardless of the materials prepared, or the stillness of the furnace, drying out moisture...

It’s certain that today we cannot start glazing.

...

The next morning.

After breakfast, Lynn came again to the pottery workshop.

Under the apprentices’ attentive looks, Lynn approached the furnace.

Having settled overnight, the furnace had dried out almost completely.

Materials needed for firing glazed glass had also been prepared by the apprentices.

Lynn began directing the apprentices to start glazing.

Ordinary soda-lime glass requires mixing silica sand flux, and limestone in the ratio of 7.5:1.5:0.5.

Since the castle’s window sizes are large, at least four meters high and three meters wide, Lynn directly used borosilicate glass ratios for firing.

The silica sand content increased directly to 80 percent.

This greatly enhances the glass’s durability and corrosion resistance.

Even when encountering severe weather like hail, it won’t smash the glass windows!

Under Lynn’s direction, apprentices got busy.

Beo and Layla stayed with Lynn throughout, listening to his explanations.

Igniting the furnace, adding anthracite, heat began spreading within the furnace, temperature rose quickly.

More than a dozen apprentices took turns operating bellows equipment to make the anthracite burn more rapidly.

Because of the anthracite now, within one or two hours, preheating can be completed.

If using other charcoal or logs, at least four to five hours or more would be required!

High-efficiency, high-energy fuel significantly boosts production efficiency!

Once preheating was completed, Lynn instructed apprentices to batch pour the mixed raw materials into the furnace through the feed inlet.

After all the raw materials were poured in, they closed the feed inlet and added more anthracite to increase the furnace temperature.

As time continuously passed.

Raw materials in the furnace began to melt, and Lynn, while watching the changes of raw materials in the furnace, instructed apprentices to stir using long iron rods.

Thus ensuring the raw materials are evenly heated and fully melted.

The entire furnace must maintain melting temperature for raw materials for at least a day, so the added materials can fully melt.