These craftsmen have always adhered to the refining techniques passed down from generation to generation. Even if there is some wisdom, most of it is used in small-scale reforms, and each reform is slowly explored by several times the number of people.

If there is a major reform, it is also a reform that is recognized by one's own theory. For example, the stirrup proposed by Guan Yan last time, as soon as the sketch came out, these craftsmen could understand the role of the stirrup after thinking about it again.

The quenching of horse urine is different, and this reform is based on the chemical reaction of horse urine with dissolved iron. Horse urine contains salt, which cools faster than water when quenched, and the hardened steel is hard, so the strength of the blade is enhanced, and the combat power is also increased. But how do these craftsmen understand this? The concept of chemistry was only systematically formed in the eighteenth century, when people's thinking was not related to scientific theories at all; Besides, it seems to be a bit blasphemous that horse urine, a filthy thing, is used to quench military swords.

Therefore, when the craftsmen saw Guan Yan invade the red blade into the horse's urine, they not only had a regret for wasting the blade, but also a dissatisfaction with Guan Yan's approach.

Looking at the expressions of the craftsmen behind him, Guan Yan smiled slightly, this is also expected, the concept is not formed in a day or two, and it is not so glorious to change, the only way is to prove it with practice now, only in this way can these craftsmen be convinced.

Guan Yan took out the blade of the knife, the knife was not sharpened, and the sharpness of the knife could not be proven, the only thing that could prove it was the strength of the blade.

"Xiao Qi, bring the knife!" Guan Yan stretched out his hand and asked Xiao Qi, the captain of the personal guard, for the saber on his waist.

Guan Yan also has a Tai'a sword hanging around his waist, but the Tai'a sword is an ancient artifact, and the sharpness is what ordinary steel can bear? If a sword is split into two sections, in addition to proving Tai'a's sharpness, it seems that it cannot play a role in verification.

Xiao Qi's saber is also a steel knife made by craftsmen, although it is not as good as an artifact like Tai'a, it can also be regarded as a sharp weapon in the blade.

Guan Yan placed the quenched horse urine blade horizontally on the anvil, the blade was black and swarthy, looking like a piece of burnt wood, very unsightly.

Legend has it that the ancients built an artifact, and when the artifact is about to be completed, there will be a vision.

Now that Guan Yan's method is followed, let alone the vision, the blade has become so ugly, which makes the craftsmen even more disbelieving what Guan Yan is doing.

Guan Yan didn't say anything, and raised the big knife with both hands to slash at the dark blade.

I saw sparks rise in all directions, and there was a piercing sound of metal colliding.

Guan Yan slowly put away the knife, and everyone couldn't help but look down, only to see that only a bright silver knife mark was left on the dark knife body.

Guan Yan didn't say anything, walked to the side, rolled up a rag, and took out a burnt red, half-finished long knife from the charcoal fire. This time, Guan Yan inserted the long knife into the water tank, and a white mist rose with the "呑呑", without the pungent smell just now.

After the churning water calmed down, Guan Yan still put the long knife horizontally on the anvil, raised the big knife in his hand, and slashed it fiercely.

After the spark, everyone couldn't wait to look at it, only to see that the long knife in Guan Yan's hand still fell on the blade of the knife and had not been taken away. It's not that Guan Yan deliberately didn't take it, but the blade has been stuck in the blade.

Guan Yan raised his foot, stepped on the blade of the knife, and suddenly exerted force with both hands, and then pulled the long knife back. On the dark body of the sword, there is also a bright silver white mark. The only difference is that this white mark is more than half an inch deep into the blade, and it is slightly cracked.

In this comparison, the advantage of the strength of the former blade is highlighted.

"Do you see clearly? Quenched with horse urine, the blade is hard and hard, and the two armies can have an advantage in the killing! Guan Yan threw the long knife in his hand to Xiao Qi and said calmly.

The craftsmen gathered around the cool quenching blade and talked about it. After a long time, the first craftsman said: "The lord has a miraculous effect on this method, the old man has been refining knives for 30 years, and today he knows this method of 'horse urine quenching', teachable, teachable!" “

Guan Yan laughed: "Okay, okay, quenching in the future, all with horse urine!" Guan Yan's face suddenly turned straight: "This method can only be used in our army, if there is a leak, behead!" ”

"Whoa!"

Guan Yan wandered around the craftsman's workshop for a long time, and when he returned to his room, it was already Yue'er.

Luoyang, Jizhou, this is the place that Guan Yan can control at present, Cao Cao, Liu Bei, Sun Jian, Liu Yan and other well-known heroes of the Three Kingdoms, have also stepped onto the stage of history in various parts of Kyushu one by one, even if Guan Yan has the experience of later generations, he also has lingering palpitations for these people.

The more he thought about it, the more annoying he became, Guan Yan shook his head and tried to throw these figures out of his head, how to develop himself well was the top priority.

Ancient warfare was the most elaborate on a series of factors such as formation, morale, and weapons. As the only form of expression of ancient warfare, the importance of the quality of weapons is an important factor that determines the victory or defeat of war.

Guan Yan's series of reforms seem to be just a small fight, but for the combat power of a team, the effect is very huge, as long as there is one more layer of advantage on the battlefield, then there is one more chance of winning!

Now the dragon and tiger under Guan Yan. Riding, under the training of Ma Chao and Pound, the style of the whole team was dyed with the fierce spirit of the northwest. Coupled with Guan Yan's stirrups and horse urine quenching blades, this combat effectiveness has increased by at least three percent.

However, the improvement of the combat effectiveness of the cavalry caused Guan Yan to cause another worry. That is, the cavalry can only be the front, the surprise, and the support, but it is not the real main force in the battle. Whether it is attacking a city or holding a city, an elite infantry is the soul of war.

Guan Yan carefully counted the generals in his hands, Ma Teng, Ma Chao, Pang De, and Ji Ling can be horse generals, and it may be effective to train cavalry, but I am afraid that training infantry is more than enough and not enough.

As for Zhou Cang and Dian Wei training 100 people to be guards, they can be reluctant, but if they practice with military formations and fight against the two armies, I am afraid they will be powerless.

Chen Deng, Xi Zhicai, Fu Zhu and others, arranged the troops and made suggestions, but they were first-class good players, but it was not their strength to really start training from the basics.

After counting and counting, I really couldn't find a person who could train the infantry of the first army, and the dignified Han hussar general did not have a suitable candidate to be the main general of the party's infantry army! Guan Yan couldn't help but smile bitterly and shook his head, it seems that there are still too few talents in his hands!

Alas, how can this be good?

Just when Guan Yan was distressed, a pawn shouted not far from the door: "You go and lead the general's horse to brush it!" ”

"Oh~" snorted and replied to the pawn.

The voice was dull and quite distinctive, which made Guan Yan's mind suddenly appear a figure.

Guan Yan frowned and thought for a moment, then hurriedly got up and rushed out of the door, and by the moonlight, he saw a burly figure slowly walking out with Guan Yan's peerless shadow.

"General Gao Shun!"