Three Kingdoms: Prosper Han from the beginning of brushing favorability

Chapter 259 Unilateral Arms Race

With a Mo knife in two months, the blacksmiths recruited by Pu Yuan were far less efficient than him.

This efficiency is indeed too low, there is no way to promote it.

The pre-war reserves are barely enough, but once they are damaged during the war, they cannot be replenished at all.

It is also very difficult to repair the weapons made in this way.

"...Isn't it possible that you don't need to make steel?" Liu Chan asked with a frown.

Pu Yuan said nothing and silently presented another knife with the same shape.

To be honest, Liu Chan didn't see much difference.

He walked to another wooden stake where the knife was tested, exhaled in the same way, and swung the knife with great strength!

Dang!

The angle is the same, the force is almost the same, but the result is very different.

After breaking through only a few layers of leather, the knife broke.

If the attack just now was on the battlefield, it's not clear whether it would be possible to shatter both horses and men, but it would definitely be no problem...Of course it was my own side that was shattered.

"Ordinary blades are uneven in hardness and toughness. In such a shape and under such use, they will easily break..." Pu Yuan said helplessly.

Now Liu Chan understood that in order to achieve the ideal effect of Mo Dao, in addition to the style design, the most important thing is the material.

If the material quality of the blade does not improve, everything else is useless.

It would be no problem to make one for the generals, such as the iron spears for myself and Uncle Zhao, as well as Zhangba Snake Spear, Yanyue Sword, etc.

If you want to make one, it will not be difficult if you have the diagram that Liu Chan originally drew.

The difficulty is precisely that this kind of weapon requires large-scale equipment, and it is useless to have pictures alone.

Whether it is Tang Dao or Mo Dao, the reason why many later generations of Dao are easy to use is only a small part of the rational design, and the more important thing is the improvement of forging technology.

Liu Chan sighed, this is not in a hurry, he puts the "platform", funds, and R&D environment in place, and the rest depends on the wisdom of these professionals.

"Speaking of which, Gu actually came here with a few ideas, which might be helpful for you to forge weapons." Liu Chan said, handing the broken knife to the craftsman beside him.

Pu Yuan's brows stretched, he changed his frustration just now, and said with great interest: "I would like to hear the details."

The last time I talked with the prince about blacksmithing, the prince's whims and maps gave him a lot of inspiration.

Although many of the weapons on the map are not meaningful for actual combat production because the materials cannot keep up, there are also many designs that are worthy of reference and improvement for the current weapon production.

As soon as I saw these blast furnaces, some thoughts appeared with my gradually clearer memories.

The first is the furnace temperature. Before more advanced chemical technology is turned on, it is impossible to significantly increase the furnace temperature, but it is not completely impossible.

Liu Chan brought Pu Yuan to those "ancient blast furnaces".

He pointed to the air blowing pipes on both sides of the blast furnace: "If we change the position of these air blast pipes so that they are heated by the residual temperature of the blast furnace before blowing air..."

Pu Yuan's eyes lit up: "This can eliminate the impact of cold wind on the furnace temperature and further increase the temperature that can be achieved in the furnace!"

[Puyuan Favorability +10] (80)

[Pu Yuan favorability degree 80, constitution +5, calcining talent +15×2]

Sure enough, he is a professional, and he can do it without any effort.

"Gu has discovered a large amount of carboniferous deposits in Nanzhong, and a batch has also been shipped this time. In the future, the furnace can be converted to charcoal instead of charcoal, and the cost can be further reduced."

Although charcoal smelting has lower impurities than coal, the cost is much higher than coal now that large coal mines have been discovered.

"Thank you, Prince!"

[Puyuan Favorability +10] (90)

[Pu Yuan favorability degree 90, constitution +5, calcining talent +15×2]

Then there is steel frying. In fact, steel frying is when the molten iron is stirred, the carbon in it oxidizes with the oxygen in the air, bubbling to form carbon monoxide and discharged into the air to achieve the purpose of decarburization.

From high to low carbon content, pig iron, low-medium-high carbon steel, and wrought iron will be formed.

During this process, the impurities in the molten iron will also be filtered out along with the air bubbles.Of course, at this time, people naturally cannot accurately control the carbon content, and basically fry it to the end. As for the ingredients that come out, it often depends on luck.

The only thing that can be stably produced is pig iron. Wrought iron is more difficult to obtain. It is more of a material with uneven softness and hardness and a lot of impurities. Therefore, it needs to be repeatedly folded and forged to make the carbon evenly distributed and try to remove the impurities.

As for direct tapping, that is even a small probability event.

Liu Chan pointed to the pool where the steel was fried: "If a cover is built on this pool, the rising heat can flow back without being lost, and this method can be made more complete..."

"It also makes it easier to produce 鍒 (wrought iron)!" Pu Yuan excitedly said.

[Puyuan Favorability +10] (100)

[Pu Yuan's favorability degree is 100, constitution +5, smelting talent +15×2, and the characteristic "magic workmanship" is obtained]

【Spiritual Craftsmanship and Ingenuity】: When the mastered forging knowledge meets the basic needs and is successfully realized, you can understand more advanced forging knowledge.

[Have mastered "ordinary blast furnace ironmaking" and "steel frying method", and comprehended "pig iron falling into the method of pouring steel"]

Before Liu Chan had time to read these reminders carefully, he felt that when thinking about matters related to smelting and forging, his brain became extremely flexible and clear.

Wrought iron has a high melting point. With current technology, wrought iron cannot be completely melted, but pig iron can be melted.

And if the fuel is changed from charcoal to coal, and the frying of steel undergoes the improvement just mentioned, a large amount of wrought iron can be obtained more stably and efficiently.

The carbon content of pig iron is too high, and the quality is hard but brittle. Although the carbon content of wrought iron has dropped, it is often too low. There are many oxidized impurities in it, and the ductility is good, but it is too soft.

After both pig iron and wrought iron can be prepared in a stable scale, the soft and ductile wrought iron can be twisted to trap the pig iron.

Then put them into the furnace together, seal the mud and smelt it, use the oxygen in the wrought iron to oxidize the silicon, manganese, and carbon in the slowly oxidized pig iron, causing intense "boiling" to further remove impurities.

And gradually balance the carbon content of the raw and wrought iron, then take it out and hammer it and then refine it to further remove impurities until you get steel!
Compared with steelmaking, this method greatly reduces the number of hammering exercises required.

Liu Chan told Pu Yuan this idea in the language at this time as much as possible, and he understood it very quickly.

The more he thought about it, the more feasible Pu Yuan immediately said excitedly: "This subordinate, according to what the prince said, ordered people to transform the furnace!"

His blacksmith's soul is already on fire, and he can't wait to try it out.

And Liu Chan, who has acquired such characteristics, is also planning to stay in Linqiong for a period of time, pulling Pu Yuan to "make up lessons", to see if he can learn some new forging knowledge.

Liu Chan, who once wanted to make hot weapons but was severely educated by reality, now activated the "fear of insufficient firepower" in his blood again.

Of course, he is much more realistic now, and he knows that it is unrealistic to skip the development stage in vain. This time, he has to upgrade his equipment step by step.

At the same time, Chengdu was informed that coal shipped from Nanzhong would be given priority to Linqiong for production, and firewood would still be used for winter heating material reserves.

Anyway, after Linqiong no longer uses charcoal, the price of firewood will naturally drop, and the supply will also increase.

Pu Yuan stopped some less urgent work and concentrated his efforts on transforming the blast furnace.

The two modification methods mentioned by Liu Chan are not difficult to do, and there are no technical difficulties. The difference is just an idea, and the modification will be completed soon.

After that, Pu Yuan, who seemed to have been beaten with chicken blood, started the first steel filling experiment under the witness of Liu Chan.

With Pu Yuan, the master blacksmith, and Liu Chan, who possesses epoch-making insights and talent bonuses, the first batch of pouring steel was unsurprisingly...failed.

Liu Chan looked at the failed work with uneven carburization and excessive pig iron ratio, and comforted him: "It doesn't matter, if you don't have experience the first time, just try again. Failure is success damn it."

Pu Yuan, who had lowered his head and trembled, raised his head, and there was no expected depression on his face, and there were no tears in his eyes, but they were shining...

"Prince! This method really works! Hahahaha..."

Liu Chan: "..."

It turned out that the boy was trembling with excitement just now, so he was comforted in vain.

After two failures, the third furnace finally succeeded.

[Have mastered "Pig Iron Falling into Steel Filling" and "Hundred Steel Making", and understood "Steel Wrapping" and "Steel Clamping"]

Liu Chan ignored Pu Yuan who was roaring excitedly, and silently praised the newly added features in his heart.

In Linqiong County, Yizhou County, an arms race against Cao Wei and Sun Wu started vigorously.

Of course, it is a bit inaccurate to say that there is a competition, because it is conducted unilaterally without the other party's knowledge...

(End of this chapter)