When the word "Hundred-smelting iron" came out, people were no longer calm and caused a lot of excitement.

They were discussing in a low voice, obviously they had all heard of this term.

Someone spoke, and his tone was full of incredible. "The sword made of Baijing Iron Cutting iron like mud. I thought it was just in the legend. Now I finally saw Baijing Iron Cutting iron with my own eyes."

When the two armies are in war and are evenly matched, the side with excellent weapons and equipment will definitely have a great advantage. It is like a bird gun against a cannon. Unless you are lucky, the winning rate will be difficult to increase, and you will lose nine out of ten battles.

Another person added: "There is another special thing about smelting iron, which is that it is not easy to rust."

"No, every hand is hard-earned and has very high requirements for craftsmen."

"It is basically impossible for an inexperienced craftsman to create a piece of smelting iron."

"The iron refined is only the first step, and the next step is to test the level. How difficult it would be for such a magical object to shoot a knife or a sword."

"I have only reached the level of five refinings at most. If you think about it, it's terrible. How strong is it to be patient and skill?"

Someone said: "It is said that the famous craftsman Pu Yuan made a sword and top edge only for seventy-two refinements."

According to Pu Yuan, a master of sword making skills during the Three Kingdoms, once a person becomes famous, he has a great saying in the entire world. According to legend, the treasure sword that Pu Yuan once made for Liu Bei was engraved with "Seventy-Two Refinings" on it, which was probably the highest level at that time. The time spent behind it must have been quite a lot.

"Pu Yuanna is a grand master."

On the other hand, it proved that the technology at that time was really backward. A good steel knife could actually cause a sensation. You should know that this kind of knife is as numerous as modern times, and Qing Cang also has a saber on his body, so the texture is really undeniable.

"The mastery of the Fire Marquis of Baijing Iron must be as perfect as fire. It is too difficult for us, and it may be beaten up."

"Even my master can't reach this level, that must be a master's product."

"The commander actually has such a magical object in his hand."

...

Qing Cang also knew this kind of good thing. If it were in this era, the refining process would have been very long, but it would not be surprising if it knew its principles.

He asked, "Tell me about this kind of iron smelting is made of?"

Xu Dezhi returned the ak47 to Qing Cang, for fear of being damaged. He said: "After the iron ore is mined, it can clear the impurities and turn it into pig iron. The iron is very brittle at this time because there are too many impurities and is impure. Therefore, it has to be burned again through the furnace to clear the impurities. Calcination is called a refining. The so-called 100 refinement means more than a hundred times until the pounds are no longer reduced. At this time, the iron produced is cast into a weapon, and combined with excellent quenching, it can achieve the effect of cutting iron like mud."

As soon as he said this, Qing Cang knew that he was talking about the process of steelmaking.

His ak47 is not entirely steel. His weapons have been upgraded and are made of alloys. The performance in all aspects has been improved by more than one level, but the magazines are made of steel.

One hundred calcination will cost a lot of time alone, and you must be very careful, because it may be messed up.

After all, it is actually to constantly calcin the carbon content in the iron.

Xu Dezhi also mentioned the concept of quenching. The so-called "quenching" means first placing the beaten steel knife on the fire and burning it red, then immediately put it in cold water and dipping it properly to allow it to cool suddenly. Repeat this a few times, and the steel knife will become tough and elastic.

"I believe you also know that the damage rate of our weapons is very high. Can you analyze the cause?"

"Commander, although I know that these hundred iron smeltings are not enough to be refined a hundred times, at most nine times. Moreover, the blacksmiths here are uneven, and it is difficult for some people to reach the fifth refinement, so it is inevitable that some defective products will be produced. Moreover, if you want to produce so many weapons in a short time, the quality will not be guaranteed. So everything is still not enough time."

This explains why the damage rate is high. The impurities and excessive carbon content directly cause excessive defective products.

Speaking of this, Qing Cang understood that everything is based on methods. If one can find a way to produce a large amount of iron smelting, then this problem will be solved.

When Qing Cang was studying in a military school, he had in-depth research on sabers. He also read an ancient book about the ancient methods of steel making. That is, stir-frying steel. The principle is the same, and it is necessary to reduce the carbon content in iron. Unlike smelting iron, it combines oxygen with carbon in iron by injecting oxygen to achieve the purpose of controlling carbon content.

This set of principles will not be widely used in several years. This will greatly improve efficiency, steel output, and quality.

"Captain Wang, is this the case?"

"Commander, yes, I'm not finding a more advanced smelting method. So I asked Commander, to discuss the solution together."

If the blacksmith cannot do something, it will be even more impossible for Wang Zongwei to do it, and it is not his fault.

He made a decision directly. "Xu Dezhi, you prepare ten furnaces, one furnace is allocated and two good hands to guard the furnace, and melt the pig iron yarn inside, and then get ten blowers."

Xu Dezhi didn't understand Qing Cang's purpose of doing this very much, but he didn't dare to ask, so he had to do it.

Qing Cang would not say it, and they would not understand it after talking about it. This involves some chemical reactions, such as oxygen combined with carbon to form carbon dioxide or carbon monoxide, and of course, there are other things in pig iron like sulfides.

After Xu Dezhi left the arrangement, he said to Wang Zongwei beside him:

"Captain Wang, go and call ten people over and bring ten people hourglass."

Hourglass was used for ancient timekeeping. They did not have anything like watches, and could only calculate time by things like hourglass.

"Yes, Commander!"

Wang Zongwei's expression was relaxed at this time. Qing Cang's actions must make sense. At the same time, he also sent a signal that things were about to be resolved. He would have more time to deal with other things and no longer worry about weapons.

Qing Cang arranged the people below to do things in an orderly manner. The blacksmiths looked dull and thought to themselves, what is the commander doing? Blower? Hourglass? Ten more people are coming?

Smelting is an extremely time-consuming thing. Since Qing Cang has come, he has no intention of leaving soon.

It took a long time for the pig iron to be burned and melted again. People in this era had long used coal to replace charcoal for high-temperature calcination.

He asked his subordinates to set up a tent at the door and waited inside because the temperature was too high.

About an hour later, Xu Dezhi brought more than a dozen people to Qing Cang and brought dozens of pottery tubes. These were all what Qing Cang asked them to take.

At the same time, the people Wang Zongwei brought were also in place. I just waited to see how Qing Cang arranged it.

"Commander, please arrange it."

Everyone focused their attention on Qing Cang, just looking at what he wanted to make arrangements.
Chapter completed!