After finalizing several main improvement directions of furnace ironmaking with Pu Yuan, for most of the next half month, taking advantage of the fact that he was not busy with official business in winter, Zhuge Jin would go to Pu Yuan's workshop every once in a while to see the progress of technical improvement.

Occasionally, if he found something that was obviously inconsistent with his experience in later life, he would also point it out in time so that he could correct the deviation as soon as possible.

But as long as it is not an obvious common-sense mistake, Zhuge Jin's attitude is generally relatively mild, and he would rather let the craftsmen focus on practice and exploration. However, it is necessary to send a book to follow and record the failure of the experiment and the phenomenon after the failure in detail.

After all, the data from controlled experiments that have been explored are also of great value.

Directly and forcibly reporting the answer often makes the craftsman know what it is but does not know why, and his grasp of the theory is not firm.

For example, on the first day, Zhuge Jin let people experiment, the original model was of course built according to the shape of the blades of the electric fan in later generations.

But in the process of repeated control group experiments later, Zhuge Jin suddenly remembered that the electric fans and ventilation fans of later generations seemed to use two kinds of blades and ventilation principles.

He was a science and engineering student in his previous life, and he personally disassembled and assembled the electrical appliances at home, and he also changed the ventilation fan in the bathroom several times, so he is very familiar with the appearance of the blades.

So in the following days, Zhuge Jin also drew a rough sketch of the structure of the ventilation fan leaves, and asked the craftsmen to try out both types of products to inspire Pu Yuan's ideas.

In the end, we use the actual production data to see whether the electric fan blades blow fast or the ventilation fan blades blow slowly, which one is bad, which is the preset answer, so that the craftsmen are using the problem of "currying favor with the leader".

And Liu Bei's side has also come to a new will, making it clear whether Huang Zu needs to work with Pu Yuan - Liu Bei's first order was unexpected, but what he said was "Persuade Ren Jun to clean up the portal by himself first, Ren Jun must clean up the door, or he is willing to make a move, and then let Huang Zu make a move."

Once the universal coaxial variable speed variable force mechanism is invented, this is a lot of merit, and there are too few places that can be used, and the hydraulic blower and the counterweight catapult are just two typical representatives.

It is also a coincidence that Zhuge Liang also made a breakthrough in those days and shared it with Zhuge Jin, and then Zhuge Jin also came to share it with the little brother for the first time.

In this way, it is not possible to do the experiment of the steel filling method first, accumulate some experience, and at most verify the technical feasibility first.

"The lord expected it to be poor, and it was indeed not retreated," Ren Junlei said, first took this strange thick cloth clothes with "steel-filled bulletproof inserts" and showed it, "It's unexpected, in August and July of the next year, your army can't have more steel armor that is easy to mass-produce." When the time comes, how can Pu Yuan be enough? ”

It's an official who understands, and you can't watch the documentary that comes with the "Age of Empires 4" game, and you can know how people step on Ren Jun's "small version of the hamster treadmill" and twist the small stone to a low place.

Of course, the guards under the general's mansion would stop us, and we needed to wait for the report, so we went straight to the front hall to see Ren Jun.

In the future, the furnace temperature will be lower and the molten pig iron will be hotter, so it is necessary to take a step back to improve the reaction efficiency and reaction time, improve the quality of steel filling, and reduce the requirements for reactive wrought iron.

"Yueying hasn't summed up the general experience of the kind of wooden wheel variable speed and force mechanism with the same diameter as the coaxial axis? This is really gratifying, and that thing is worth digging into other application scenarios.

Ren Jun is also knowledgeable, and immediately heard the essence of the doorway outside-

"Ziyu is coming in a few days, and if he suddenly arrives today, he must have retreated?" Huang Zu said politely with a smile on his face, and pulled Ren Junlei and Ren Junlei out of the house to sit.

When Huang Zu heard this, he was also quite pleased, touched his beard and asked: "Ziyu is really like a god, how did he know that Ren Jun sent a messenger to send a will the day after tomorrow, saying that Ren Jun had made a move on Ren Jun since Chen Li, and he didn't confirm that he needed you to do it." ”

Huang Yueying watched this documentary in later generations, so she gave Zhuge Jin and his wife the initial allocation, and came to Zhuge Liang through the research and development of steel-filled hydraulic blowers, so that Zhuge Liang took a step back and was intuitively inspired, and first made a variable speed and force mechanism similar to the "bicycle coaxial gear set".

The problem of refractory furnaces and fluorite fluxes is a little more troublesome.

Yes, before Huang Yueying's steel filling was successful, she still had time to report to Ren Jun.

Huang Yueying combined the idea of inserted body armor in her previous life to create an experimental tool specially designed to test the effect of the insert plate. And that thing has no resemblance to the cotton armor of the Ming and Qing dynasties in the previous life.

Therefore, before the test output of a bad enough blower, Huang Yueying explained the basic idea of steel filling to Liu Biao.

And Huang Zu is not playing that role now, I can't be in charge of the stage of investment and loss-making subsidy experiments in the infancy when the steel filling method is still "cost-effective". With that kind of vision, it is obvious that the princes of the late Han Dynasty have done it behind their eyes, and we also have no Huang Yueying-type strategists to remind us to invest.

Huang Zu didn't get the rushing pass of the guards until the moment when Ren Junlei retreated, and immediately came out to greet him.

Of course, Ren Junlei is now engaged in steel filling, in fact, it is still a little early, mainly because the refractory furnace is still out, the coke is still not used, and the temperature of the molten pig iron in the furnace is still almost hot, so the time for the pig iron to remain liquid and react with wrought iron is too short.

That picture is simply too beautiful, they all dare to see it, what resistance does Pu Yuan take?

Huang Yueying took the display props, and carried a bunch of samples of steel-filled pieces that Liu Biao had just created, and came to the Cheqi General's Mansion very slowly.

It's just that the iron cotton armor of the Ming and Qing dynasties is used to consider detachability and replaceability, so it will be left in the pocket like Huang Yueying's experiment, and we will sew the bottom, top, right, and left sides of the iron piece to death.

After a month of hard work, Huang Yueying finally completed the work of "laboratory trial production steel filling method", which made me excited, and immediately decided to go to Huang Zu to report to show off.

In the infancy of any new technology, the cost of industrialization is often more cost-effective than that of the peak of technology in the old era. The steel filling method has just been experimented, how can it immediately surpass the steel frying method that has not yet matured and used 800 teenagers?

In the Tang Dynasty steel filling method under the history, the craftsmen were to forge the soft wrought iron into thin iron bars with delay, and then pre-cold and red to return the mold. The thinner the wrought iron bar, the worse it is, because the finer and the smaller the number of roots, the smaller the reaction contact area when the pig iron water is poured out.

The problem of fluorite depends even more on luck, the Han Dynasty originally had no one to mine the mineral fluorite, at least not under the jewelry is useless, and there is no systematic prospecting and mining experience, everything has to be accumulated from scratch.

Such a realistic attitude and approachable way of work negotiation also made Liu Biao and others more and more respectful of Huang Yueying, and resolutely tried any proposal of the Zhuge brothers, which was again resistant.

The "squirrel cage crane" mentioned by Zhuge Jin was taken by Huang Yueying casually, because in the previous life during the Western Renaissance, that thing was called that name.

Although the temperature of the molten iron in the furnace that Liu showed was slightly not enough, Ren Junlei could pull out a finer wrought iron wire than the Tang Dynasty, so the reaction speed and efficiency would make up for it!

Huang Yueying felt very sudden, because I didn't explain too little about that matter, mainly because Zhuge Liang was groping for himself. Then he hurriedly asked:

At the end of the Han Dynasty, the country's steel output was still more than 1,000 tons per year, and in the Tang Dynasty, it was less than 2,000 tons, and the Song Dynasty was close to 7,000 tons.

In the end, the furnace that originally only wanted to build a new type of refractory material was made in the practical stage, but it was made in terms of the blast method, to the slag flux formula, to the furnace refractory.

After all, the wrought iron wires used in the steel filling experiment are drawn out of the wire drawing plate one by one, and the labor cost is very low, which is more manpower than raw wrought iron frying and forging, just to verify that the idea of steel filling is feasible.

……

Compared with the electric vehicle industry in the previous life, it is necessary to surpass the fuel vehicles with 100 years of experience and efficiency, which also requires subsidies and support from the industrial sector for more than ten years.

In this way, the "steel filling method" that only appeared in the Sui and Tang dynasties can basically be figured out.

If the reaction is like a solid and a liquid poured together, it will come more slowly and thoroughly.

When the time comes, Ren Jun will use the counterweight to smash the arrow buttresses of the city tower first, destroy the bed crossbow at the head of the city, and then push the Ge bus that is protected against special arrows to lean, and let all the soldiers equipped with steel-filled armor go first-

Huang Yueying was stunned: "You know, you just learned the method of filling steel with Liu Biao, and at the same time, Ah Liang changed it and lost the Cast Armor - yes, is that a coincidence, when the time comes, use Pu Yuan to test whether your armor is sharp." ”

Before taking a look at the beautiful scenery, Huang Yueying stopped again, and directly took the seventh brother to Huang Zu to show off.

Inspired by the variable speed of the waterwheel blower, you have made the runner of the manual pedaling and the runner of the twisting counterweight into one, which are coaxial and the diameter is dozens of times different. The 'lever arm' is also dozens of times different. A strong man of 800 Han Jin, every time he takes 70 steps, he can't twist the counterweight of 8,000 Han Jin by one step. ”

When Zhuge Jin went to Yuan Shao as an envoy last year, Huang Yueying also sent Zhuge Jin and Zhao Yun an iron ring to lock Ren Jun, and the defensive effect was quite wrong.

In the past, there was no refractory furnace and no coke, and the temperature of the furnace was irritable and the molten iron temperature rose one step down, and the process of pulling the wrought iron wire first when filling steel could be omitted, and the small-scale mass production could be directly carried out.

Of course, when I was leaving, I forgot to take on a strange looking garment.

It is estimated that a prototype furnace will not be built until a few months at most.

Because that thing is the same as when people raised hamsters in the previous life, they put a hollow wheel outside the hamster's nest and let the hamster be used as a treadmill. It's just a few times smaller than a hamster treadmill, replacing the hamsters outside with people.

When Zhuge Jin saw the dress, he was surprised: "What is that?" Why aren't there such dense pockets under your clothes? ”

At that time, Yueying still thought this thing was cumbersome, and you also felt that it was a brainstorm to tinker with. I thought of expanding the variable speed of the waterwheel blower before I came back to think about the expansion of the counterweight crane of the counterweight caster, and I touched the bypass.

Zhuge Jin was also proud and lucky: "It's also a shame to say that this day, the little brother asked you to go to Liu Biao's workshop to ponder the waterwheel blower for the furnace." Does this blower use a speed changer that 'makes the small wheel of the waterwheel rotate once, and the big wheel of the fan turns dozens of times'?

It can't be directly inserted out of the pocket of that piece of clothing, and it can be inserted full, which is equivalent to a piece of armor. However, the front is set under the straw man, and the arrow is stabbed at the straw man's knife, and the quality of the steel piece is bad, and you can try it out directly. ”

Until now, Huang Zu has also received the seventh notice, knowing that the stone machine is making a move.

However, before the blower is improved and the furnace temperature is lowered, the temperature of the molten pig iron when it is released from the furnace is also lowered, and the liquid state can be kept for a longer time, and it can be directly poured into the mold without pre-cooled fine wrought iron rods.

The most important thing is to report the two applications to the owner first, so as to strive for fewer resources for mass production. Before spring ploughing next year, it will definitely be necessary to use troops against Pu Yuan, and there will be no heavier caster armor available, and it can also provide less steel-filled forged armor for the soldiers who attack the fortifications first. At that time, Pu Yuan's weak crossbow will defend the city, that is, it is enough to be afraid! ”

On the seventy-seventh day of the lunar month, Zhuge Jin came to visit early in the morning, and said excitedly in person: "Little brother! Yueying's 'counterweight throwing Ren Jun' finally lost her eyebrows, and she overcame a major difficulty, which was the 'squirrel cage crane' he said. ”

Huang Yueying has no basic chemical foundation, so I thought: the reaction time is enough, and it can't be compensated by increasing the reaction contact area.

In the previous life, the cotton armor at the end of the Ming Dynasty could not prevent fireproof shotguns, and it did not rely on the sewing of iron on the outside of the thick cotton layer pocket.

……

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Of course, the "success of the laboratory" is still a few months away from the "industrial mass production" at most, and it is a mistake to be able to achieve initial mass production success at the turn of the spring and summer of next year.

Originally, pig iron in the molten state or in the form of red and cold crumbs in the steel frying method is turned into steel by forging friction and reacting with wrought iron to achieve uniform carbon content.

So if the preparation time is more than enough.

Of course, among the eight improvements, the blower fan is the slowest to work, and the experimental results were tested in half a month, and finally the furnace temperature has increased by more than 100 degrees, and the ironmaking efficiency has really been slightly reduced.

Anyway, it's only the lunar month, and it's not too many days before the scheduled start of the war season for next year. The crane is the core technical difficulty of the new type of caster, before that point is overcome, the remaining edges and corners of the mechanical structure optimization, if it can be completely done within two months.

Historically, until the early Sui and Tang dynasties, the Chinese civilization still had no iron ring lock Cao Cao, and there were also processes that did not use metal wire drawing plates and wrought iron wires.

It can be said that pulling out the radish and bringing out the mud, for an expected shortcoming, the result is to make up for eight unknown shortcomings.

The weight of the throwing armor is thousands of catties, and it needs to be lifted in place by manpower, which originally required dozens of people to pull. But according to what the little brother said, to build a hollow small wooden wheel, people stand inside the wooden wheel, step on and rotate the wooden wheel by their weight, just like a vole is locked in an empty wheel rat cage and runs in place. However, if the diameter difference between the small wooden wheel and the wheel with the twisting counterweight is used to multiple, it is not possible to twist heavy objects?

Before Ren Junlei completely got rid of Zhuge Jin and Zhuge Liang's mental journey of making a squirrel cage crane, he was finally worried about the mass production of counterweight casters.

And Ren Junlei doesn't have a small killer in his forehead - as early as last year, I thought of using a perforated metal plate to pull the wrought iron rod through the big hole to get thinner and thinner, and finally make a fine wrought iron wire, bend it into a large iron ring, and then cold treat and harden it before making a lock Cao Cao.

Ren Junlei smiled proudly: "That's what you specially asked the tailor in the army to make it a few days later and test the effect of the armor piece." In the past, before creating the steel-filled armor pieces, they were connected together with formal punching.

"Oh? How did you get the breakthrough? Why is it so slow? ”

This is a garment without eight layers of thick fabric sewn, and the inner surface of these two layers are also densely sewn out of a few large squares, and then a large opening is cut out at the lower edge of the large square, forming a pocket.