"Cadre, how did you manage this nearly three-foot-long sword without losing its toughness?"

Qingji asked curiously.

Hearing this, the cadre just leaned over and said to Qingji: "Back to the king, the material of this sword is actually the same as the material of an ordinary copper sword. ”

"According to the requirements given by the king, my Wu Jian is about a foot longer than the Wu Jian in the past. How to not lose its resilience? ”

"The minister and the swordsmiths thought about it, and after trial and error, they finally came to a conclusion."

"The key to forging a sword is how much tin is added to the copper during smelting. If there is less tin, the sword is too soft. If there is more than that, the sword is too hard, but it is easy to break! ”

"Therefore, the copper-tin ratio can make the hardness and toughness of the bronze sword combine just right."

In the exposition of the cadre, Qing Ji learned that his Wu Jian and the later Qin Jian were basically at the same level.

As the final pinnacle of the bronze sword casting process, the Qin sword achieved an almost perfect combination of length, hardness, and toughness, and the attack performance was greatly increased as a result.

The surface of Qin Jian has a tin content of up to 30%, but the inside maintains a tin content of about 20%.

The modern tin bronze content is 3% to 14%, which makes Qin Jian's hardness lead the world, the hardness is equivalent to medium carbon steel, and the toughness is equivalent to a piece of glass made by modern technology!

How can this not be black technology?

"Good!"

Qingji bowed slightly, and then went to inspect the weapon workshop specializing in crossbows.

There are roughly three kinds of crossbows in Wu, one is a bed crossbow, one is a hand crossbow, and the other is a kick crossbow.

The crossbow must be wound with the help of the strength of the whole body.

This crossbow has a range of up to 300 meters and an effective killing distance of 150 meters!

Qingji has made people experiment with many kinds of weapons, and they are all very satisfied.

It's just that he still has a doubt in his heart.

"Cadre, like a sword and a cluster of arrows, can it be mass-produced without any difference in quality?"

"This ......"

The cadre was asked, and after thinking secretly for a while, he finally smiled bitterly: "King, all weapons can be mass-produced." However, there is no guarantee that the quality is of the highest quality. ”

"That's not going to work."

Qingji shook his head and said: "If the quality of a soldier's weapons and equipment cannot be guaranteed, how can he bravely kill the enemy on the battlefield and how to protect himself?" ”

"Your Majesty, the minister must strictly control the quality of weapons!"

The cadre immediately assured.

Hearing this, Qingji pondered for a while, and then said: "Cadre, you don't have to be difficult for yourself. In the future, anyone who manufactures weapons for the army will be given a name. ”

"From Dazai onwards, to craftsmen, the name of the worker."

"The king is wise!"

Hearing Qingji's idea, the cadres and the people present couldn't help but light up.

The name of the object, that is, the maker of the object should engrave his name on it.

According to Keiji's plan, Dazai is the supreme supervisor of weapon production.

Below Dazai is the Daiko Order.

Such as building a long ge.

Below the order of the great workers is the director of each arsenal "Fu".

Below the factory director is Cheng, similar to the workshop director, and the director's name is "Yi".

And the craftsman who made this Ge with his own hands is called "Cheng".

Wu's military industry management system is divided into four levels, from Dazai, Dagongling, engineers, Cheng to craftsmen, responsible at all levels, any quality problems can be found through the name engraved on the weapon.

It is conceivable that if the numerous arsenals of Wu State can produce high-quality weapons in large quantities according to unified standards, the pyramid-style five-level management system is the fundamental guarantee.

At this time, when most of the world was still surrounded by barbarism and ignorance, the Wu people created the most powerful weapons manufacturing industry in this era with their unique way of thinking and wisdom!

Now, the weapons of the Wu State have greatly improved their quality and productivity compared with the previous generation, and almost all the types of weapons that were prevalent at this time are included.

There are not only the common Ge, spear, halberd, sword, crossbow, sword, crossbow, Yu and copper arrowhead, etc., but also the long beryllium and Wu hook commonly used in Wu.

Some weapons also have complete inscriptions.

According to its function, it can be divided into three categories: the first type is short weapons, with swords and golden hooks.

The second category is long-handled weapons, including spears, ge, halberds, axes, swords, berylliums, etc.

The third category is long-range weapons, including crossbows, bows, etc.

These weapons are all cast!

Then, surrounded by everyone, Qingji came to a hot steel frying workshop.

There are large and small stoves all around, and the waves of air generated between the dry wood and the flames are amazing.

This type of furnace is small, reed-shaped (small mouth and big belly), so the temperature can be concentrated, the lower part is underground, and the heat dissipation is less.

The wind from this furnace is puffed in from above.

The cadres followed Qingji's instructions and used this advanced "steel frying method" to try to refine iron into steel, smelt iron into steel, and then go to create sharp weapons.

It's just that the price is not ordinarily large!

The time it takes is also long!

For iron smelting technology, there are ancient times.

Legend has it that in the middle of the Shang Dynasty, there was an ordnance maker in the Central Plains who accidentally found several pieces of very hard meteoric iron.

He melted the meteorite while casting the bronze and made a handful of iron and copper axe.

The occasional meteorite iron is not enough to meet the needs of making weapons in large quantities, and all iron in nature exists as a compound and must be smelted.

Therefore, in the Spring and Autumn Period, the Chu State in the south and the Yan State in the north took the lead in mastering the artificial ironmaking technology.

The Yanren cast swords, using the carburizing method to repeatedly forge wrought iron into steel, and using quenching technology.

They also pioneered local quenching, which makes the blade stiff and sharp, and the ridge is tough.

In the Han Dynasty, there was a major breakthrough in iron-smelting technology, and new technologies such as pig iron smelting and casting, cast iron decarburization steel, and 100 steel-making appeared.

What Qingji wants to use is the 100 steelmaking technology!

It's just that it didn't work very well!

The cadre said with a bitter face: "King, this method of smelting iron into steel is really not achieved overnight. If the king's sword dragon abyss, and even the world's famous sword, are made of meteoric iron, it is really natural. ”

"And it is even more difficult to forge ordinary ugin (iron) into meteoric iron. Please also ask the king to forgive some time......"

"It doesn't matter."

Qingji waved his hand, but he didn't embarrass him.

To be able to achieve this level, the cadres are already indispensable!

Qingji's idea is very advanced, but the ability of the cadre has not kept up with the rhythm of Qingji.

Qingji can't come up with some outrageous black technology and force the cadres to come out, right?

Like aircraft artillery?

That's simply not realistic!

The existing level of science and technology simply does not allow the emergence of such epoch-making thermal weapons!

In fact, if the steel that has been forged into steel is forged into weapons, it is difficult to generate them in batches and equip them in large quantities in the army.

Therefore, Qingji's idea is to form an invincible elite army, equipped with a Mo knife, and cutting people is like cutting melons and vegetables!

Black technology is also very good, at least it is difficult for others to imitate it!

Literary Network