According to the records of ancient books, the broadsword used by the people of the Tang Dynasty needs to be cast with spring steel, but there is still no such high-quality steel in karadia. Most of the weapon armor used in karadia is cast with pig iron, which is hard and durable. However, it lacks toughness, and the weapons are easy to break, while the pig iron armor is hard and brittle. The sword can\'t move, but it\'s easy to break when it meets an iron hammer. However, there is no corresponding steel forging technology in the mainland. Fortunately, Shao Yu is also a blue star college student. Although he has not worked as a blacksmith, he still has some understanding of metallurgical technology. Shao Yu studied the technology of quenching and forging steel with these blacksmiths according to the memory of his previous life.

According to Shao Yu\'s memory, the ancients seemed to have the tradition of quenching with horse urine. They used the inorganic salt in horse urine to make alloy through a certain reaction to strengthen the hardness of weapons. There is also the technology of refining steel by pouring steel. Shaoyu has been living in a blacksmith\'s shop with these workers for a few days and experimenting over and over again.

The kings are here to make iron with the blacksmiths. The workers here are excited and work harder. Arsenal is very important for Shaoyu, who also takes special care to improve the living conditions of blacksmiths. Raise wages and improve food.

Irene, Lord ubai and others often advise Shaoyu that forging iron is the work of inferior people. A noble identity like Shaoyu should not participate in it. Just give it to those workers.

However, they were rejected by Shaoyu in the end. Seeing Shaoyu insist, it\'s hard for Elaine and others to say anything. After all, Shaoyu is the king.

Several days after the start of the arsenal, Shao Yu made iron in the arsenal, and the affairs of the kingdom were handed over to several ministers. That day, Irene, Lord ubai, Wayne and other important ministers of the kingdom were discussing the political affairs of the kingdom together in the castle. Shaoyu came in happily

"You guys, come here!" Shao Yu shouted happily

"What\'s the matter, your majesty?" Irene asked curiously

"Whose sword is good? Take it out and try it," Shaoyu said with a smile

When they saw the long knife in Shaoyu\'s hand, they suddenly understood that it was a weapon. It seems that there is no progress.

Shao Yu is holding a bright long knife in his hand. It is still a semi-finished product, but it is not installed. The blade is long and narrow. It seems to be a new weapon, or a weapon from a different continent.

"Elaine, where\'s your sword? Do you want to compete with my unfamiliar sword!" Shaoyu looked at Elaine and said

"This..." Irene hesitated. His father gave him his sword as the heir of the count. It is said that the sword was forged by a royal sword maker in one year. The market price is as high as 7000 dinars. It is absolutely strong and sharp. After following Elaine for three years, I don\'t know how many people died under the sword. Shao Yu is obviously going to try his knife. Irene was worried.

However, Irene was not worried that Shaoyu would break his sword. Irene was worried that Shaoyu would be frustrated if Shaoyu\'s semi-finished sword was cut off by the sword. After all, Shao Yu also paid a lot of experience.

"Why, afraid I\'ll break your sword? Or afraid I\'ll feel frustrated?" Shaoyu smiled at Irene\'s hesitation.

"It\'s just a semi-finished product, and I\'m just trying to make it better. Don\'t worry," Shao Yu guessed Irene\'s idea and said

"Well, your majesty, please try." Irene listened to Shaoyu\'s words, so she no longer hesitated, pulled out the sword, put it on the sword rack and let Shaoyu experiment.

Put the sword, Elaine retreated to one side, and ubai and others watched.

"Well, don\'t be distressed if it\'s broken," Shao Yu said. He picked up the semi-finished Dao in his hand and cut it down against the blade of Irene\'s sword.

Shao Yu started quickly and ruthlessly, and several people next to him stared at the quality of the long Dao Shao Yu spent so many days casting. However, several people are still not optimistic about Shaoyu\'s unfamiliar Dao. A king who goes to forge iron is as unreliable as a blacksmith when he is king.

However, Shaoyu cut it down, and there was no such situation as they predicted. Originally, according to the guess of ubai and others, Shaoyu\'s knife should be cut off. However, in fact, this situation did not happen.

Just listen to the "click", Modao and the sword blade bite together, and there is a small cut on the sword. What\'s more surprising is that there is a small cut on the sword. But there is only one gap in the knife.

Irene and others were stunned. The sword forged by Shaoyu in a few days cut the sword forged by a royal sword maker in a year.

"Still not strong enough, not sharp enough." Shao Yu looked at the gap on the knife, shook his head in disappointment, slowly walked out of the castle with his long knife and returned to the arsenal to forge again.

Leave Elaine and others looking at Shaoyu in disbelief.

"I didn\'t expect your majesty to have this talent!" Irene couldn\'t help exclaiming. The sword he was proud of was cut down by Shao Yu\'s sword cast in a few days, and it seems that Shao Yu is still not satisfied.

Although he pretended to be disappointed, Shaoyu was already happy at the moment. I didn\'t think I could. Shao Yu didn\'t know whether he could succeed at first, but after several days of practice, Shao Yu, in cooperation with several senior sword makers, now made a strange knife to chop hard. Without any damage, the sword used to cut off ordinary soldiers has been light and easy to lift.

Excited, Shaoyu hurried to find Irene for the experiment. Shao Yu knows that the sword worn by Elaine is a fine product, sharp and strong. During the battle, Shao Yu can often see Elaine cut the fan-shaped cavalry shield of the enemy cavalry with a knife. That sword is an absolute sharp weapon. The usually strong fan-shaped cavalry shield, even if the Virginian rider uses the destructive monthly blade axe, it takes at least two or three axes to break it.

Because pig iron is hard and brittle, blacksmiths in karadia made weapons of ordinary quality (weapons heavily equipped by ordinary soldiers, such as short sword, sword, single knife, etc.) relatively wide and short in order to prevent weapons from hitting hard objects and breaking. The blade is not very sharp, which can also avoid the problem of easy collapse of the blade due to the pursuit of sharpness.

Of course, the quality of weapons such as elite machete is still good, but because it takes a lot of time, energy and financial resources, there are few equipment in the army. After all, the weapons craftsmen in kaladia were limited by the level of ironmaking technology. It takes a long time for a good weapon maker to make a good weapon.

However, Shao Yu is not subject to this restriction. Shao Yu clearly knows what affects the hardness and toughness of ironware. Therefore, as long as they guide the senior blacksmiths and sword makers with their own knowledge, they can quickly forge high-quality weapons. Shao Yu gradually realized excitedly that his super era scientific and technological knowledge can bring him great advantages in this continent.