Da Wei Chun

Chapter 59 Subversion of cognition
"Lang Jun, what you asked for has arrived!" Li Bo stopped the carriage and hurried over to report.

"It's hard work!" Li Chengzhi nodded, walked to the carriage, lifted the sackcloth on it and glanced at it.

Limestone was on the first car.

This stuff is very common. During the Spring and Autumn Period, the ancestors used it to combine with fine sand to build houses and walls.

Li Chengzhi came for this thing, one is to remove sulfur during coking and iron making, and the other is to burn some quicklime as a catalyst.

Of course, if Li Chengzhixian's eggs hurt, he can burn some cement out of it using the local method. Anyway, there is no shortage of clay and iron slag right now.

But he reckoned that it would be useless to burn it out.

Because he only knows which raw materials are used, but the specific material ratio is not very clear, and he does not know the specific sintering temperature, so he has to try again and again.

The most critical reason is that there is no strong crushing equipment, and only people hammer and stone grind it, which cannot achieve the corresponding fineness at all. Therefore, the strength of this kind of cement is not high, the curing time is long, and it is extremely intolerant to low temperature. It's no different from tofu.

Not to mention building a city, building a bungalow may not be feasible, building a road might as well be equipped with some Sanhe soil.

It's okay to build some pig troughs and mangers buried in the earth, at least it is less troublesome than chiseling with stones...

Let's wait and see if we can develop it successfully.

The second car is a car of quartz sand.

This thing is more common, and there are rivers and sand in the northwest, but it is not easy to sift.

In addition, most of the clay mines have this associated ore, and this car is sieved from the clay.

This thing, Li Chengzhi is used to remove phosphorus when making steel, and it can also be used as a catalyst.

If you have time, you can also try burning the glass.

In fact, the glass craftsmanship of the Northern Wei Dynasty was already very advanced, and although it was considered precious, it was far from the level of gold in the legends of later generations.

I only vaguely remember that it seems that in the Northern Zhou Dynasty or the late Sui Dynasty, the glass craftsmanship was lost, and then began the era of allowing Persians to collect IQ tax, which also led to the later dynasties, this thing was so precious.

The Xianbei people like it, but the Han people don't like it very much: one is crispy, and the other is that it is easy to fry when exposed to cold and heat.

In the eyes of Han people who accidentally drop a bowl may be regarded as a big omen, if this thing is too cold or too hot, it may explode by itself, of course, it is not so popular.

This is mainly because the heavy metal content in the glass is too high.

So Li Chengzhi wanted to give it a try to see if he could burn the high-boron glass, but it really couldn't, so he could burn some high-sodium glass.

If you can make it, it is an amazing way to make money, maybe you don't have to take the risk of making a bronze statue.

At that time, the officials and nobles of Quan Dawei will all be drinking with glasses, and the pictures of eating with glasses should not be too beautiful...

Of course, I have to wait until I have time to talk about it. Right now, of course, the main thing is to protect small lives.

Li Chengzhi asked Li Bo to stop the carriage and let him stare at Seng Zhuang, who was digging pits and building pottery kilns, while he went to the carpenter's side.

Five or six carpenters were building windmills according to the blueprint he gave.

It's really not that Li Chengzhi is pedantic and knows everything.

It's just that he has a wider range of knowledge and more knowledge. He knows what kind of things can be improved a little, and they can achieve several times, or even dozens of times, the effect of the original.

like a unicycle...

What he asked the carpenter to build was actually a small windmill that improved the windmill used by farmers to blow millet in this era, and could be used to supply air to a small blast furnace.

And the process is not complicated, but the volume is reduced, and the original hand-operated wheel is replaced by a pedal, which can be faster and send more wind.

Kind of like an oversized Peppa Pig blower, but with an extra pedal wheel.

Speaking of which, we have to mention the water drain and the rice scooping machine.

The former Li Chengzhi has never met, but according to what Li Song said, he can roughly reconstruct what it is.

In fact, it is a large-scale platoon that uses hydraulic power to push a large wooden runner, and then sends force through a crank connecting rod to supply air to a large iron-making furnace. This is what Dawei's iron smelting field and arsenal are using at this stage.

What Li Chengzhi was curious about was the crank-link transmission.

Does it exist in this era?
What's even weirder is behind.

Li Song also said that some water drains are driven by belts, which are also passed down from the Han Dynasty...

belt? ? ?

There are even more surprises.

The water bucket Li Jiali used to scoop rice by the Jinghe River was a double-ended bucket, but because the Jinghe River was small, it couldn't carry it no matter how big it was.

It is said that on the edge of the Yellow River, there are at most eight heads.

The simple description of this thing is: the river water drives the wooden wheel, and then transmits the force through the crank connecting rod, which drives the several stone scorpions that install the wooden handle to smash the rice one after another...

Li Chengzhi was stunned when he saw it.

Isn't this thing a prototype of a cold forging machine?
Going a step further, make Peppa Pig's windmill into a hydraulic brake, and then connect it with this thing, and then cooperate with the small blast furnace and the crucible steelmaking method, how many steel armors can't be made?

It was also at that time that Li Chengzhi knew that the old ancestors were so wise, that many things were actually separated by a layer of window paper...

For example, the method of frying steel and pouring steel: it doesn't matter if you can't make steel, I just fry it to the end and make mature iron.

Then make the embryo with wrought iron, pour the pig iron juice on the outer edge... This way, the inner part is wrought iron, and the part that needs to be sharpened on the outside becomes pig iron, or steel.

In this way, there is toughness and hardness... This is the famous iron sword of the Southern and Northern Dynasties.

Not to mention the Southern and Northern Dynasties, that is, in the 70s and [-]s after the founding of New China, this method was still used in steelmaking in many places in China...

Therefore, compared with the popular streaking, drug use, exchange, group hi, borrowing seeds, etc., which were popular in the Southern and Northern Dynasties at this stage, these things really overturned Li Chengzhi's cognition.

In the future, whoever dares to say that the ancients have low IQs, Li Chengzhi promises to wear it back and kill him...

……

When Li Chengzhi passed by, several carpenters had already started to work.

In fact, this kind of windmill is simpler than the one that blows grain.

Because just stepping on the wheels to supply the wind, there is no need to worry about whether the corn will be poured into the windmill.

The only things to consider are airtightness, air leakage as much as possible, and what to use to send the air into the blast furnace, which can reach temperatures of thousands of degrees.

In fact, the solution is very simple: the former is covered with cowhide, and the latter is connected to the blast furnace with a pottery tube.

After checking that there was basically nothing wrong, Li Chengzhi went to the blacksmith again to take a look.

A group of blacksmiths are using the excavated soil to stabilize the stone platform, and then they will place anvils on the stone platform, and the armor pieces will be hammered and forged on it.

Li Chengzhi was quite sure that more than [-]% of the steel he made with the crucible was steel. As for the level of carbon steel, he was not sure.

So the process of the blacksmith is very simple: hammer the steel plate as thin as possible.

His requirement is that the nail plate should not exceed two millimeters as much as possible.

No matter how thick it is, it is a bit heavy, and it is not necessary.

Two millimeters of steel plate can resist a lot of pistol bullets...

(End of this chapter)