Yu Wenwen came to a courtyard, where many pieces of Liangdang armor were hung in the open space, and a knife was placed on a shelf, which was the latest treasure knife created by the craftsmen: the Su Iron Knife.

The iron knife is a steel knife made by the steel filling method, "burning pig iron is heavy and soft, and it becomes steel after several nights." Take the soft iron as the spine, bathe with the drowning of the five animals, quench the fat of the five animals", because it is named because it is "a few nights into steel".

Its knife is steel and flexible, the blade is rigid and soft, and it can "cut the armor more than 30 piercing", which is really a treasure knife for murder and arson, home travel,

Because I knew in advance that the history of the stab should be verified, the Ministry of Engineering had already prepared the iron knife that had cost countless money to build, although it was an ordinary knife system, but the blade was very bright.

Yu Wenwen took it in his hand and looked at it, and after a while, he nodded and handed over the Su Iron Knife to Tian Xiaoqi, who was accompanying him, and looked at the two armors that the collar had prepared, and he gave an order: "Start testing the knife!" ”

Tian Xiaoqi held the Su Iron Knife and slashed hard at the first leader and two armors, but the result was one knife and two cuts, then the second leader, still a knife, then the third leader, and the fourth leader

The lower half of the Liangdang armor that was cut off by the waist fell to the ground, the broken armor leaves were scattered, and the sound of Ding Lingdang came and went, Tian Xiaoqi showed his own knife technique, and the armor was constantly cut when the body moved.

Yuwen Wen squinted and listened to those sounds, the movement of the nail leaf falling was like countless copper coins falling to the ground, in order to show the power of the Su Iron Knife, he used real material Liangdang armor.

Tian Xiaoqi's strength was very strong, holding the Su Iron Knife and constantly slashing the two armors, until the eighteenth collar did not stop, he gasped lightly, carefully looked at the blade of the Su Iron Knife in his hand, and after a while, he walked towards Yuwen Wen and offered the knife with both hands: "Envoy, the gap is already obvious." ”

"Good." Yuwen Wen said with satisfaction, he looked at the few obvious gaps on the blade of the Su Iron Knife in his hand, and there was no expression of annoyance.

Actual combat knives, no matter how high-end the material, no matter how sharp the blade is, after cutting a few armored soldiers, it will collapse, the famous Oriental knife, slashing the unarmored or light armor target is very cool, but the armor of the soldier can not last long.

In actual combat, it is common for fierce generals to cut several knives in a row, and the kind of thing that a knife is cut by thousands of people on the battlefield only exists in the world of Wushuang, and those treasured knives of later generations are works of art, which are placed on exquisite knife stands for people to watch, or pose for play.

Of course, it's not impossible to kill a thousand people with a knife, but it can be done by slaughtering civilians, and Yu Wenwen sincerely wishes that this kind of person will not die well.

At present, there is a gap between this Su Iron Knife and the legendary armor cutting more than thirty ties, but if it can break through the armor and eighteen collars, he thinks it is a good knife.

"The official has set the reward in advance, and now everyone has created the Su Iron Knife, and the relevant personnel are all rewarded!" Yu Wenwen loudly announced that as long as the craftsmen were attentive, he would not hesitate to reward.

"Thank you!" The Ministry of Industry and the craftsmen were overjoyed, this Yuwen envoy was kind to them, not only did he improve his treatment as a slave, but the original meager salary was barely enough to support his family, and now with his hard work, their family can at least have enough to eat.

"How many swords can you make every month?" Yuwenwen is concerned about production.

"The steel filling method has just been mastered, and it will take a while to be proficient, and it is limited by the number of ores, so it can only be made more than ten per month." The Ministry of Industry said that this is not his shirk of responsibility, and there is no way to increase production due to insufficient mineral materials.

"It's okay, the official can afford to wait." Yu Wenwen could understand what the other party said, he looked at the Su Iron Knife in his hand, although it had been moderately damaged, but there was no heartache in the slightest.

This is a steel knife created by the steel filling method, and the steel filling method is the high-tech of this era, which was innovated by Qi Wuhuaiwen, a metallurgical master of the Eastern Wei Dynasty/Northern Qi Dynasty, to summarize the experience of his predecessors.

The prototype of the steel filling method should have already appeared, but it has not yet matured, and Qi Wuhuaiwen summed up the experience to improve and improve, which not only makes the actual operation convenient and practical, but also ensures the steelmaking.

"Burning pig iron is heavy and soft, and it is made into steel after a few nights. Take the soft iron as the spine of the knife, bathe with the drowning of the five animals, and quench the fat of the five animals", this is the text introduction of the steel filling method to make the iron knife, but Yuwenwen does not understand it.

He is not a metallurgical major, and only knows basic common sense about iron: pig iron is a ferroalloy with a carbon content greater than 2%; wrought iron, which is a ferroalloy with a carbon content of less than 0.2%; Steel is a ferroalloy with a carbon content of 0.2%~1.7%.

To put it bluntly, iron-making and steel-making are to control the carbon content, and if you control pig iron, wrought iron and steel, you can catch it by hand, the principle is very simple, but it is not the same thing to do, thanks to the craftsmen of this era who have a lot of experience in ironmaking, plus the steel-filling method that just appeared in the same era, it is not a dream to make steel.

He has been dreaming this dream for more than two years, and today it has finally come true.

In May of the second year of the elephant, Yuwenwen came to Anlu, and when he was engaged in "cross-era" ordnance in the ordnance supervisor, he asked the blacksmiths if they knew the steel filling method, and almost everyone shook their heads.

It took more than a year for this blacksmith to turn his memories into reality, and the Su Iron Knife he refined was very popular, and Yu Wenwen was naturally the first batch of 'users', but his knife had been given to Wu Ming who went to Chang'an on a 'business trip' at the beginning of the year.

Gaining a firm foothold in Bazhou, Yu Wenwen, who was dedicated to ironmaking, remembered steelmaking, and he basically talked about the technical problems of the steel industry on paper, so the actual operation had to invite experts, and a few clever blacksmiths were selected from Bazhou to learn from Anzhou supervisors, and they immediately put into practice after returning from school.

Of course, the ore used in steelmaking is transported from Anlu, and the materials are the same as those of Anlu, in order to reduce the variables as much as possible, and then try other sources of ore when the method is mastered.

Now that the Su Iron Knife has finally been refined in Bazhou, and regardless of the output, this is a huge progress, Yu Wenwen held the Su Iron Knife that had many gaps, and was a little excited in his heart.

Holding the iron knife in his hand, absorbing the divine power of the wilderness, opening the genetic lock, ascending the throne as the emperor, serving as the heavenly khan, marrying the Eastern Roman princess, and walking to the top of the world?

Thinking too much, this thing is sharp, Yuwen Wen didn't expect to sweep the world like this, the Northern and Southern Dynasties and the subsequent Sui and Tang Dynasties, the army had a very high armor rate, and even armor-piercing weapons were widely used, and there was no room for the sword to do whatever it wanted on the battlefield.

You say you sharpen iron like clay? Sample, come and play with maces, whips, and hammers, these things that are no different from iron lumps can scrap the steel knife.

In actual combat, he charged with the iron knife and slashed at a strong man on the opposite side, but the monster screamed a few times, picked up a one-legged bronze man's iron shovel to block it, and after the sound of metal impact, there was a scar on the iron shovel, and it was the iron knife that collapsed.

Maybe the opponent only has an inferior iron knife, but after a few slashes, there will be a gap in the sword that is as iron as clay, and as the battle heats up, the sword will have to kneel.

Don't talk about the Central Plains knives garbage, even if it is an Oriental knife or a Damascus steel knife, if you meet armored soldiers on your respective battlefields, and fight against the opponent's metal weapons in battle, no one can be intact.

The reason why Yu Wenwen burned money to study the steel-filling method is that he likes the process of steelmaking, the steel knife cannot beat the world, but the lethality is better than that of ordinary iron knives, and the armor-piercing arrow of the steel, the spearhead and the spearhead of the steel, that is his goal.

The iron knife is a fish, the steel filling method is fishing, and the way of making the iron knife is to make the craftsmen master the steel filling method, and then it is widely used in the military and civilian, which is beneficial to farming and warfare.

After inspecting the Su Iron Knife, Yuwen Wen's interest was still very high, because there was one more thing to see next: the new iron armor.

Si Jia brought up an iron suit with a tray, and the other person picked up the iron suit and unfolded it, Yu Wenwen saw a 'iron cloth T-shirt' displayed in front of him, and Tian Xiaoqi and the others who accompanied him looked at this iron suit with interest.

"This is the Ring Lock Armor?" Tian Xiaoqi asked with some uncertainty, it was clearly visible that the iron jacket was composed of iron rings, densely forming a short shirt made of iron cloth.

"Yes, it's ring lock armor." Yu Wenwen nodded, of course, there is also a name for this thing, which is chain mail, and the principle is the same.

"I heard that this ring lock armor is very valuable" The accompanying soldiers exclaimed, and now the armor is very common in the army, the most common is the two-dang armor, the higher level is the barrel sleeve armor, and then the generals' Mingguang armor, the ring lock armor is said to be only used by the court officials.

As a result, his own Bazhou prison was made?

"Ring lock armor, according to legend, was introduced to the Central Plains from the Western Regions in the Han Dynasty, and was decorated into a garment by an iron ring sleeve, shaped like a net lock." Yu Wenwen said the origin, "Who wants to wear it and try it?" ”

After a struggle, a soldier of suitable shape put on the ring lock armor, and he walked back and forth in the courtyard, bending down from time to time to make various movements, and the ring lock armor was moving freely.

"It's as flexible as clothes, and it doesn't feel boring when you wear it." He talked about his experience of wearing ring lock armor.

Yuwenwen glanced at Zhang Yu, Zhang Yu then drew his knife and slashed at the soldier's chest, only to hear a metal impact sound, the soldier who had just come back to his senses looked down, and the ring lock armor on his chest was not broken.

"Everyone has seen the protective ability, and it can prevent the slashing of the knife." Yu Wenwen said with a smile, Zhang Yu apologized to the frightened soldier, and the others nodded frequently after seeing the actual performance.

There has already been a test of the 'same style' ring lock armor, so Yuwenwen let Zhang Yu do it directly, of course, the bow and arrow shooting has also been tested, so Yuwenwen directly explained.

"It can prevent slashing, but it is relatively weak against arrows, and it is enough to choke if a dagger, spear, or spear is stabbed."

"Of course, if the iron ring is smaller and denser, the ability to defend against arrows and stabbing will also be higher, and the defense of the well-made ring lock armor is also very good, but the price will go up to the sky."

"Envoy, I'm afraid this ring lock armor can't be blunt weapon, not to mention iron shovels, iron whips, and even big wooden sticks." Tian Xiaoqi asked cautiously, Yuwen Wen nodded when he heard this, Tian Xiaoqi has been training on the battlefield for more than a year, and he has seen more and has the ability to think independently.

"Everyone has seen that the ring lock armor is a flexible armor, just like an iron coat, it can be anti-chopping, but it is not stab-proof, especially the armor-piercing arrows with long conical arrows, which should be able to pierce through the gaps in the iron ring." Yu Wenwen continued.

"Because it's soft, the other party can't prevent it from hitting it with an iron shovel or even a wooden stick."

Hearing this, everyone's feelings about the ring lock armor instantly dropped a lot, and they all felt that this kind of armor that had only been heard of in rumors didn't seem to be of much use, but some people thought of a use.

"Ring lock armor can be used as inner armor, and two more armor or barrel sleeve armor can be worn outside." Yu Wenwen pointed out the main point, "It's more flexible than wearing two collared sleeve armor at the same time." ”

Tian Xiaoqi nodded when he heard this, as a melee vanguard, he often wears two sleeve armors, the protection is increased, but it is indeed a little inflexible, this ring lock armor is as soft as clothes, and the addition of a collar sleeve armor can not only improve protection, but also will not affect the action.

The outside is a barrel sleeve armor, and the inside is a ring lock armor, a hard and a soft superimposed together, which can prevent arrows and slashes, if it is the kind of mountain barbarian who uses bone arrows, he can also deal with it by wearing ring lock armor.

Yu Wenwen was quite happy to see that the ring lock armor/chain mail was successfully made, in fact, he was not very looking forward to this kind of armor, the peak of armor defense was naturally plate armor, but his metallurgical ability was not enough to do well.

Plate armor, to put it bluntly, is to use the method of cold forging to forge large pieces of iron/steel, and then make it into armor with super protective power, but the problem lies in the cold section, with a hydraulic forging hammer, there is no lack of strength, what is lacking is iron and steel with good ductility.

Don't talk about the iron pot, it is made of pig iron, not only is the weight not light and very brittle, if you accidentally fall to the ground, it will break a hole, the thickness of the plate armor is generally about two millimeters, of course, because it is cold forged, the defense is much higher.

According to the current metallurgical level in Bazhou, it is impossible to make plate armor, not to mention that the iron production is not high.

The reason for making ring lock armor is because Yu Wenwen 'has a dark heart', as a severe victim of paranoia, he always feels that someone wants to harm him, and the ring lock armor can be worn close to the body, and no clues can be seen when he wears a robe outside, to put it bluntly, it is used for self-defense.

The other is what Fang just said, as an inner armor with other armor, while increasing the defense power, maintaining a certain degree of flexibility, making the 'chain cloth' of ring lock armor, and can also be used as the hem of the helmet to protect the neck.

Or make a hood to protect the head and neck, or make a skirt to protect the thighs, anyway, it is to use the softness of the ring lock as a supplement to the protection of some moving parts.

There are also many derivative uses, such as using this 'chain cloth' on horse-drawn carriages to make door curtains, or to make curtains, anyway, "there are always people who want to harm me", and it is always right to strengthen defense.

However, what made Yuwen Wen slightly disappointed was that no one asked him how this ring lock armor was made, you must know that one of the processes caused countless verbal battles in later generations. (To be continued.) )