Luoyang, Jinwu Lane, Cao Mansion.

The furnace for forging weapons burned for a whole day, and even from a distance through this furnace, you could feel the heat here.

Liu Sandao is making steel, sweating like rain.

Just a day ago, he didn't even know what steel was, and Cao Shuo's analysis was very simple, what could sharpen iron like clay was refined steel.

As for how to refine 100 refined steel, Cao Shuo can't say why!

However, after listening to the theory of "steel filling method" proposed by the little boy Cao Shuo, Liu Sandao seemed to have opened the door to a new world and decided to give it a try without hesitation.

It stands to reason that steel does not belong to this era, and the earliest appearance was more than 300 years later in the Northern Qi Dynasty.

However, after thousands of years of development, this technology is still shining in the 21st century.

Even, Cao Shuo's hometown has a famous steel-making enterprise, and several of Cao Shuo's uncles are still working as mechanics in it.

I've never eaten pork, I've always seen pigs run.

Under the influence of his ears and eyes, Cao Shuo also wrote down the steps of forging steel.

In fact, the principle is very simple, that is, the pig iron is melted and used as a carburizing agent to quickly carburize the wrought iron.

Wrought iron becomes steel due to carbon infiltration, and pig iron can also become steel due to decarburization...

After all, they have gone through nine years of compulsory education.

At high temperatures, the carbon, silicon, manganese and other elements in the liquid pig iron react with the oxide inclusions in the wrought iron, so that the impurities can be removed, the metal structure can be purified, the metal quality can be improved, and the so-called steel can be refined!

Of course, theory is theory.

In practice, there are still a lot of problems.

For example, what is the ratio of pig iron to wrought iron smelting for steel with different carbon content? What proportion of steel? Can you cut iron like clay? What percentage of steel is the legendary 100 refined steel? And steelmaking doesn't seem to use coal...

One problem after another made Cao Shuo's mind full of question marks.

Even, for a moment, he regretted that he didn't memorize the chemical element table properly...

However, fortunately, Liu Sandao is very persistent and professional!

He kept trying various proportions of pig iron and wrought iron, trying at different temperatures, and for a whole day, he could eat lunch.

Every time, whenever he could feel the hardening degree of this steel, Liu Sandao was ecstatic.

Of course, his countless attempts were based on the huge consumption of iron.

The best iron is sky-high in this world, if it weren't for the Cao family's some background, it would definitely not be able to withstand Liu Sandao's attempt.

"Brother Shuo, the steel made of these iron smelters seems to be harder than the original iron, and the weapons that you want to forge must be sharper? Why does Uncle Sandao keep trying? ”

Cao Ang has also been looking at it for most of the day...

While amazed that iron turned into steel, he also admired Liu Sandao's perseverance.

"That's the pursuit!" Cao Shuoba pursed his mouth and pinched his waist. "If he doesn't refine the steel that satisfies him, I'm afraid Uncle Sandao won't stop!"

Cao Shuo thought well.

Liu Sandao has been practicing forging since he was a child, and his childhood dream was to be able to create a peerless artifact, just like when we were young, our dream was to be a scientist.

Originally, it was a boundless matter, but suddenly, Cao Shuo opened the door to a new world for him, and the dream of forging an artifact seemed to come true.

Who is it for? will also be desperate and forget to fight this one...

"Bang, bang, bang..."

The sound of forging is endless...

Cao Shuo was already sweating profusely, Liu Sandao was close to the iron melting furnace, obviously he was hotter, but even so, he didn't take a step back for the whole day!

"Brother Cao Ang, let's go!" Cao Shuo nodded lightly, and immediately greeted Cao Ang.

"Huh? Don't wait for Uncle Three Knives! ”

"Don't wait, he, it will take a few days!" Cao Shuo smiled slightly, and immediately ordered Ah Cai. "Uncle Acai, Uncle Three Knife's food, send someone to bring him to the molten iron furnace... By the way, add more meat, and besides, prepare more water and bring it from time to time, it's too hot here. ”

"Don't worry, little boy!" Ah Cai agreed...

Cao Shuo looked at Liu Sandao again, and then left with Cao Ang.

Speaking of which, it's time to prepare a small schoolbag, and school will start in two days.

Hey.

But at this moment, Cao Shuo noticed that water droplets were falling from the sky...

"March? It's raining? Cao Shuo muttered in his heart. Light and March of the fourth year? Oh no, the Yellow River in Dunqiu County is afraid that it is about to burst! ”

All of a sudden, Cao Shuo's whole person became nervous!

……

……

Luoyang, Imperial Palace, Deyang Palace.

"For the matter of conquest of Xianbei Huqi, there is General Lao Huangpu."

The soldiers and horses were ready, and everyone expected to return, and Liu Hong, the son of heaven, personally named Huangpu Song as the general to be captured.

Liu Hong, the rich son of heaven, under Cao Shuo's reminder, has some higher-level spiritual needs, such as flowing in the blood of the emperor, and the determination and will to attack the Huns in the north have been awakened.

"The minister will definitely live up to His Majesty's entrustment."

Huangpu Song bowed his hand, he is the gate, his ancestors, his father had a great reputation in the war against the Hu people, and now, the baton is handed over to him, this is an opportunity to become famous in the world, but also an opportunity to regain the majesty of the Han Dynasty, he knows that it is of great significance.

"I don't want to say anything, the lesson of five years ago is not heavy, General Huangpu must win this battle!"

Liu Hong, the Son of Heaven, slowly spoke...

The lesson in his mouth is that in April of the sixth year of Xiping, more than 100,000 troops led by Xia Yu conquered Xianbei, but they were defeated and buried in Xianbei by the Hu people, and the scene of mourning was all over the wilderness.

Now that I think about it, I remember it vividly, and it was this defeat that wiped out the arrogance of the Han people and the confidence of Liu Hong, the son of heaven.

It's ironic...

This time, Liu Hong, the son of heaven, made up his mind to conquer Xianbei's original intention, but not to find the military soul of the Han Dynasty, but to return a favor and return the great favor of the little guy Cao Shuo.

"Your Majesty, the minister has only one request!"

"Speak."

"The ministry to conquer Xianbei will be personally selected by the ministers."

Huangpu Song's tone was serious.

He is a general, and he has always been keen to judge the war, and he knows very well that five years ago, Xia Yu 100,000 Han troops were killed?

It is because the children of the clans appointed by the imperial court to the army are vainly trying to go to the battlefield to make meritorious contributions, and to put it bluntly, it is plated with gold, so that they can be promoted to high positions when they return.

The main general Xia Yu had no virtuous talents available beside him, and it was difficult to support him alone, so he defeated Yanmen and made Xianbei arrogant for five years.

The past is unbearable, and Huangpu Song made up his mind that this time he could not use the family to say anything, and he must select talents.

I thought it would.

This is not an excessive request, and His Majesty will definitely agree to it without thinking.

I never thought about it...

"No way!" Liu Hong, the Son of Heaven, immediately refused.

"Your Majesty..."Huangpu Song still wants to persuade.

"I can rely on you for the rest, but there is one person who must be appointed as a cavalry lieutenant! Let him go into battle and make meritorious contributions. "Liu Hong, the Son of Heaven, proposed...

"I wonder who Your Majesty is referring to?" Huangpu Song was puzzled, and a bad premonition rose in his heart.

"Cao Cao!" Liu Hong, the Son of Heaven, directly pronounced Cao Cao's name.

"But the eldest son of the Cao Song family? Dunqiu ordered Cao Cao? Huangpu Song asked rhetorically.

"Exactly." Liu Hong, the Son of Heaven, nodded.

"But... But he never went to war. Huangpu Song was afraid of this, he reminded again and again. The cavalry captain is going to lead thousands of cavalry into battle to kill the enemy, Cao Cao? He's a young man with no battlefield experience? Incompetent! ”

"Incompetent?" Liu Hong, the son of heaven, narrowed his eyes. "If you can't do it, you can find a way to help him do it! His son has done me a great favor, and the favor of this son of heaven must be repaid! General Whampoa understands what I mean, right? ”

"This..."Huangpu was silent when he ascended...

He had heard that the young grandson of the Cao family helped the Son of Heaven to do business, so that the money in Wanjintang was about to overflow, and it was for this reason that there was 100,000 military expenses, as well as more than 10,000 war horses in exchange, Lu Zhi also told him, and it was also the credit of Cao Shuo, the youngest grandson of the Cao family!

Call... Huangpu Song exhaled, he couldn't refute the Son of Heaven, while the Son of Heaven owed Cao Shuo a favor, these of them were generals? Don't you also owe Cao Shuo a favor?

One favor for the appointment of a cavalry lieutenant, it is still cost-effective on their side.

"The minister understands..."Huangpu Song bowed his hand, and he accepted the fact that Cao Cao was appointed as the commander of the cavalry.

However, after all, he had some opinions about Cao Cao, a guy who had no ability and relied on his son to take the position? He looks down on Huangpu Song!

……