After listening to the magnetic separation method, Buck couldn't think of any way to improve glassmaking.

Alan didn't mention the float method in the past ten minutes, and still answered for everyone how to blow with a hollow iron pipe.

Like an ant on a hot pot, Buck was anxious to wander around, waiting for a long time for the next class to start.

"After the hollow iron pipe suction method just now, let's talk about floating glass."

"First of all, the float method is the method of making flat glass, the principle is to use the molten tin liquid to spread it in a tin pit, and then pour the molten glass into the tin tank, the glass melt will spread the surface of the tin liquid flattened, and after it is cold, it will be slowly annealed, and the flat glass will be formed."

What Alan said next was very advanced, and many people wondered why the molten liquid of the tin ore would not mix with the molten glass.

Buck couldn't understand it as an experienced glass master, but that didn't stop him from adoring Allen.

"That's awesome!"

It was Balabala again, and Alan drank saliva again, asking everyone to digest the knowledge in their heads, and ask him questions if they had questions.

After talking about the details of the process of this float, the orcs are already dizzy, and I am afraid that the efficiency will be extremely low, and it will be difficult to teach people with full-level teaching ability, so Alan has no choice but to give up, and I will tell them about the production method of optical glass tomorrow.

Then Alan began to practice, first taking them to experience a relatively normal hollow iron pipe blowing method, first raising the temperature of the furnace.

Quartz sand is not prepared here, but is first crushed by a steam engine-powered stone crushing machine, then processed by water separation after selection, and then sent to the glass factory.

The sand that the orcs have seen so far is already the product of the blacksmith's initial processing, and now it lacks a magnetic separation step.

"This is a roller with a magnet function?" Buck stared at the long workline workbench with a giant drum that possessed the legendary magnetism.

"That's right, a huge natural magnet is installed inside the drum, and the mineral sand passing through the drum will be attracted by the drum, and there is a funnel underneath to collect mineral sand, and another is a funnel to collect magnetic products."

Alan pointed, and the slave used the handcrank bar under his guidance, driving the roller belt to drive quartz sand, and the sand passed through the magnetic separation drum, and immediately there was a sound of falling sand.

There is some sand falling into the magnetic product collection hopper and some low magnetic product collection hopper.

After a period of busy work, the milky white crystal quartz sand spreads out in front of people, it is very small, pure, beautiful and moving.

For the first time Buck saw something so pure, he put a little quartz in his palm and kneaded it gently, with a rustling feeling of friction.

"Lord Allen, is this quartz sand?" Buck's throat gurgled and he felt the urge to eat the sand.

"Yes, the next step is the melting process, adding soda ash, and then calcining into fluids."

"Melt it, bring the iron pipe, take one for each person, and dip one end in the liquid glass......"

The end of the iron pipe was immediately stained with reddish fluid, and the heat hit the face.

"It's okay to blow, plug the other end of the hollow iron pipe with your mouths, and work in pairs."

"yes, that's it, blow hard."

"Look, the molten glass is bulging......"

Allen's voice rang out in the glassworks from time to time, and after the first round of teaching, the slave apprentices had already imprinted the methods and steps that Allen had planted in their minds, even if they didn't know how to make glass bottles by rote.

When the first round of glass bottles were made, the slaves were speechless in amazement when they saw that they had made the glass bottles with their own hands, and that it was transparent and free of variegation.

Buck's reaction was even more violent, theory is theory, and he still retains a little doubt in his heart when theory does not succeed in practice.

The moment he saw the transparent glass, the doubts in his heart were no longer there.

"It's so transparent, there's no color at all." Buck was on his knees at some point, looking up at the clear glass he had made.

Watching Buck adore so much, Alan himself is satisfied, which is one of the few pleasures in a monotonous life.

Half an hour later, Buck looked at Allen with a blank eye, "Lord Allen, when are we going to use float glass." ”

"For now, we have to wait for the Orc Lab to prepare the protective gas, and wait, we will sell clear glass bottles for the time being." Alan shook his head.

Although the float method is advanced and convenient, it also requires the support of industrial capacity.

There is no nitrogen and hydrogen in the tin bath to eliminate the oxidation reaction of the tin liquid, which will produce tin oxide and tin dioxide, which will cause various defects in the glass, such as tinning, light distortion, fog spots, small bubbles in the opening under the plate and other problems.

Allen is not in a hurry, the clear glass bottle is enough to impact the existing glass market, and when the market is saturated, the next glass product can be launched.

Besides, the microscope made of optical glass is the key to breaking the superstition of the people of Fox Village, and the float method is not in a hurry.

Eren leaves the glass factory and lets them continue to make beautiful glass crafts, which will be sold by the merchants of Tomorrowtown when the time comes.

Leaving the glassworks, Alan made a beeline for the ironworks.

The ironworks have been under construction for so long, and finally officially completed today, and the orcs are waiting for him to use the identification technique to identify the iron-making blast furnace to see if the state of the blast furnace is qualified, and then start the era of blast furnace iron-making.

At present, the ironworks are equipped with blast furnace iron-making equipment, which occupies a huge area, and the amount of iron-making is also amazing, enough to exceed the iron-making output of the small workshop of the blacksmith shop.

The orcs were undoubtedly excited about this epoch-making factory, but they still didn't realize that it would change Lionheart's country, and they only felt that Tomorrowtown was getting stronger and stronger

Inside the ironworks, a group of cat-eared orcs were already guarding the doorway, walking back and forth impatiently, until they saw Eren coming from a distance, and then slowed down slightly.

"Lord Allen, you're here, come and see if the blast furnace we made is qualified." Abel came running in a hurry.

"Don't worry, I'm not coming back from the glassworks."

"Glassworks?"

Abel muttered, secretly relieved, maybe this thing is the next super machine, similar to a steam engine.

In the foreground, the towering iron-making blast furnace sits in the middle of the ironworks, which is very large and full of architectural beauty.

At the top of the blast furnace, there is also a lifting unit driven by a steam engine.

The top of the blast furnace is where the iron ore enters, and it is very troublesome to carry the iron ore on the blast furnace by manpower, so there is this lifting platform with a combination of pulleys and rope tools to transport the iron ore to the top of the blast furnace.

Of course, the rope is not a flax rope, but a spiral wire rope, which is Abel's latest pride, made of steel wire, core and grease spirally twisted, extremely strong and reliable.

Alan walked under the blast furnace and gently touched the wall with his hand, secretly activating the identification technique.