"Lang Jun, the things you asked for have arrived!" Li Bai stopped the carriage and hurried over to report.
"Thank you for your hard work!" Li Chengzhi nodded, walked to the carriage, lifted up the linen cloth and took a look.
The first car was covered in limestone.
This stuff is very common. During the Spring and Autumn Period, our ancestors used it to mix it with fine sand to build houses and walls.
Li Chengzhi came here to find this thing, firstly, to remove sulfur during coking and ironmaking, and secondly, to burn some quicklime and use it as a catalyst.
Of course, if Li Chengzhi's balls hurt, he can still burn some cement using local methods. Anyway, there is no shortage of clay and iron slag at the moment.
But he estimated that even burning it would be useless.
Because he only knows which raw materials are used, but the specific material ratio is not very clear, nor does he know the specific sintering temperature, so he has to try it repeatedly.
The most critical reason is that there is no powerful crushing equipment, and it can only be ground with hammers and stones, which cannot reach the corresponding fineness. Therefore, the strength of this cement is not high, the curing time is long, and it is extremely intolerant to low temperatures.
No different than tofu dregs.
Not to mention building a city, even building a bungalow may not be possible. Building roads is not as good as adding some Sanhe soil.
It would be okay to build some pig troughs and mangers buried in the soil, at least it would be easier than using stones to chisel...
When we have time, we will see if we can successfully develop it.
The second car is a car of quartz sand.
This thing is more common. There are rivers in the northwest and it is found in places with sand, but it is not easy to sift out.
In addition, most clay mines contain this kind of associated mineral, and this cart is sifted out from the clay.
This thing, Li Chengzhi, uses it to remove phosphorus when making steel, and it can also be used as a catalyst.
If you have time, you can also try burning glass.
In fact, the glass craftsmanship of the Northern Wei Dynasty was already very advanced. Although it was considered valuable, it was far from being as valuable as gold as it was legendary in later generations.
I only vaguely remember that it was during the Northern Zhou Dynasty or the late Sui Dynasty that glass craftsmanship was lost, and then began the era of letting the Persians collect IQ taxes, which also led to the subsequent dynasties when this thing became so precious.<
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The Xianbei people really like this stuff, but the Han people don't like it very much: firstly, it's crispy, and secondly, it's easy to explode when exposed to cold or heat.
In the eyes of the Han people, who accidentally drop a bowl may be regarded as a bad omen. If it is too cold or too hot, it may explode by itself, so 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 high boron glass. If it didn't work, he could just burn some high sodium glass.
If it can be built, it is a great way to make money. Maybe there is no need to risk the idea of making a bronze statue.
When the time comes, all the officials and nobles of the Wei Dynasty will be drinking from glasses and eating from glass bowls. The scene should not be too beautiful...
Of course, we have to wait until we have time to talk about it. For now, of course, the main thing is to save my life.
Li Chengzhi asked Li Bai to stop the carriage and let him stare at Seng Zhuang who was digging holes and building pottery kilns, while he went to the carpenter's side.
Five or six carpenters are building the windmill according to the drawing he gave.
Li Chengzhi is really not a scholar and knows everything.
It's just that he has a wide range of interests and knowledge, and he knows that if something is slightly improved, it can achieve several times or even dozens of times the effect of the original.
Just like a unicycle...
What he asked the carpenter to build was actually an improved windmill that farmers used to blow millet in this era. It was a small windmill that could be used to supply air to a small blast furnace.
And the process is not complicated. It just reduces the volume and replaces the original hand-cranked wheel with a foot-operated wheel, which can be faster and send more air.
It's a bit like an oversized version of Peppa Pig's blower, but with an extra pedal wheel.
Speaking of which, we have to mention the water drain and rice scooping machine.
Li Chengzhi has never seen the former, but based on what Li Song said, he can roughly reconstruct what it is like.
In fact, it is a large exhaust that uses water to push a large wooden runner, and then sends force through a crank connecting rod to supply air to a large iron-making furnace. The iron smelting yards and arsenals of the Wei Dynasty are currently using this thing.<
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What Li Chengzhi is curious about is the crank connecting rod transmission.
It actually existed in this era?
What’s even stranger is yet to come.
Li Song also said that some water drains use belt drive, which was passed down from the Han Dynasty...
Belt???
There is even more surprise.
The water bucket used by the Li family to scoop rice on the edge of the Jing River is a double-headed bucket, just because the water in the Jing River is small, and it cannot be carried no matter how big it is.
It is said that there are at most eight peiheads on the edge of the Yellow River.
The simple description of this thing is: the river water drives the wooden wheel, and then transmits the force through the crank connecting rod, driving several stone buckets with wooden handles to smash rice one after another...
Li Chengzhi was shocked when he first saw it.
Isn’t this the prototype of a cold forging machine?
If you go one step further and make Peppa Pig's windmill a hydraulic brake, and then connect it with this thing, and then use the small blast furnace and crucible steelmaking method, how many steel armors can't be made?
It was also at that time that Li Chengzhi realized that his ancestors were so wise that many things were actually separated by a layer of window paper...
Just like the steel frying method and the steel pouring method: if the steel cannot be made, it doesn't matter, I will just fry it to the end and make mature iron.
Then use wrought iron to make a embryo, and pour pig iron juice on the outer edge... What is made in this way is wrought iron on the inside, and the areas that need to be sharpened on the outside become pig iron or steel.
In this way, the toughness and hardness are obtained... This is the famous Sutie Dao during the Southern and Northern Dynasties.
Not to mention the Southern and Northern Dynasties, even in the 1960s and 1970s after the founding of New China, this method was still used in steelmaking in many places in the country...
Therefore, compared with streaking, drug taking, exchanges, group highs, borrowing seeds, etc. that are currently popular in the Southern and Northern Dynasties, these things really subvert Li Chengzhi's cognition.
Whoever dares to say that the ancients did not have high IQs in the future, Li Chengzhi guarantees that he will go back and beat him to death...
……
When Li Chengzhi passed by, several carpenters had already started working on it.
In fact, this kind of windmill is simpler than the one that blows grain.
Because you just use the wheels to blow the wind, you don’t need to worry about whether to pour corn into the windmill.
The only thing that needs to be considered is the sealing, trying not to leak air, and what to use to send the wind into the blast furnace with a temperature of thousands of degrees.
In fact, the solution is very simple: the former uses cowhide to cover the seams, and the latter uses ceramic pipes to connect to the blast furnace.
After checking that there were basically no mistakes, Li Chengzhi went to the blacksmith to have a look again.
A group of blacksmiths are using excavated soil to stabilize the stone platform, and then place an anvil on the stone platform, on which the armor pieces will be hammered.
Li Chengzhi is very confident that more than 99% of what he smelt in the crucible is steel. As for what kind of carbon steel, he is not sure.
So the blacksmith's process is very simple: just hammer the steel plate as thin as possible.
His requirement is that the nail plate should not exceed two millimeters.
No matter how thick it is, it will be a bit heavy, and it is unnecessary.
A two-millimeter steel plate can protect against many pistol bullets...