"As long as the master can help, no matter what the conditions, the Yanagi family will meet all of them. Saemon's face was full of relief, he didn't expect that Emi Yanagi's willfulness would actually make the family usher in a turnaround!

There was still more than half a month to prepare, and Su Yuan stayed directly, and there were three golden meteorite mines in his hand, which came in handy. This time is not only related to the prestige of the Yanagi family, but also has a special meaning for himself.

broadsword,

Cut off the heads of the devils!

It's a rare opportunity to let the little devils kill each other, and they still use the weapons built by my brother!

Suddenly, evil started in their hearts, and anger was born on the side of their hearts, Su Yuan and Xu Kui were full of motivation, and they did what they said, and immediately began to build the first katana.

First of all, I studied all the treasured knives of the Yanagi family, absorbed experience, and made hundreds of masterpieces. Although the new Yin stream is declining, the Yanagi family is rich and wealthy, and the collection is first-class.

"Master, all the ingredients are in place and ready to start. When Emi Yanagi heard that she was going to help the family build a katana, she stayed up all night with excitement, working hard for so long to contribute to the rise of the family today, as a girl.

After Su Yuan checked all the raw materials, all of them were the best products smashed out with money, especially the stones, which can be called luxurious, hundreds of thousands of dollars.

Last night, the yellow mud and cold spring water that were airlifted directly from Longquan, and even the pine charcoal also got a big truckload, everything was ready, and it started immediately.

The so-called Tai Dao is a weapon that appeared in the Kamakura Shogunate period, 3 feet 9 inches long, often used in conjunction with a small Tai Dao, and the knife is used on the battlefield, and the size of the knife is not separated from the left.

On the other hand, the rib cha is a short knife that hangs on the waist, which is mainly used to break armor, and if it is sharp enough, it can be used against samurai wearing heavy armor, and it will kill with one blow.

In the 16th century, during the Warring States Period, the metallurgical industry of the island country began to use imported ore, which was mostly sold by Portugal and Spain, commonly known as Nanban Iron. I always thought that the iron ingots came from the West, but in fact, it was Indian Uzi steel and Malay iron. And these steels were once the raw materials of the world's first fast-edged Damascus knife.

In the early days of steelmaking, a furnace of steel had to be smelted for seven days and seven nights. The biggest feature is that different varieties such as steel, pig iron, and wrought iron can be smelted in one furnace at the same time.

Basically, 3400 guan iron ore and 3600 guan charcoal can be smelted into 300 guan steel, 400 guan pig iron and 250 guan wrought iron. Due to the different cooling methods and furnaces, according to the size, softness and hardness, it is divided into Qinggang steel, jade steel, fire steel, Chikusa steel, Dewa steel and water steel.

The steel is then in the hands of the cutler, where it must be re-furnaceed, decarburized or carburized, and cast into strips, which is the real building stage.

When making knives, this kind of strip steel needs to be heated to red, hammered and forged with all their hearts, and repeatedly folded and rolled by heating, as little as seven or eight times, and as many as twenty or thirty times, which has exceeded the requirements of Longquan Sword.

Because there are too many impurities, the texture is uniform, and the unique patterns on the katana will gradually appear, and the quality depends on the experience of the craftsman.

During the Song Dynasty, there was a cold forging method, which could be used to forge iron to one-third of the original thickness without heating under the condition of being smashed by a hammer, which was a stunt.

"To put it bluntly, isn't the little devil's knife just clamping steel, why do you make so many famous halls?"

Xu Kui remembered the information he read yesterday, and he was very disapproving, the steel clamping process, popularly understood as the knife back, knife body, and blade are made of different steels, so that it can maintain its own strength while maintaining the sharpness of the blade.

What bullshit triad, the steel is sandwiched between the upper and lower layers of iron; Then it is subdivided into three pieces, with iron as the back of the blade and steel as the edge of the blade and sandwiched between the two layers of iron.

Quartet, a piece of iron for the dry, left and right respectively to the iron bar, steel bar for the blade back, cutting edge, up and down plus iron. The basic structure is the same as that of the roll, and the latitude adds an intermediate layer between the heartwood and the steel, which sounds like a big head.

Su Yuan laughed, the national character is rigorous, the pursuit of perfection and the ultimate, but this is the true meaning of traditional craftsmanship.

"In ancient times, we were oil quenched, and here it is covering the soil and burning the blade, which is the secret of all sects and sects. Su Yuan explained: "Otherwise, Miss Liu Sheng would not have traveled thousands of miles to Longquan to steal the teacher. ”

Because of this, each genre has a unique pattern, and true connoisseurs can judge the quality of the knife by the texture and ground muscles, which is called blade writing. ”

After speaking, he took out a few knives and explained: "This one has a pattern like a clove, that is, the seed of a clove." The second one is called Mutual Eyes, a neat wavy blade. ”

"The different parts also have their own names, such as the wave of the mutual eyes, the bottom of the wave towards the wing is called the valley, the top of the wave towards the back of the knife is called the head, and the middle part is called the waist. ”

"These two are of medium quality, which is the level of the top 10 on the list. If you look at this again, the quicksand blade, the boiling crystals are mixed with the earth muscles, and multiple lines appear, resembling the desert quicksand. ”

"There is also a fourth, which has a lot of thread-like lines of Mardens crystals, which is very reflective. The linear pattern is bent and lightning-shaped, called Inazuma, and they are all high-quality lines, which are no less than the level of the ground list. ”

Finally, he picked up a knife and displayed: "Among the five, this is the strongest, Peony Ying, has reached the level of the heavenly list!"

Xu Kui took the knife, and after studying for a long time, he didn't see anything famous, and said curiously: "Master, why is it called Peony Ying?"

Su Yuan took back the knife, raised his hands flat, close to his mouth, took a deep breath, and blew lightly, only to see that the breath fell on the blade, and the originally ordinary blade actually revealed an intermittent white shadow!

Xu Kui was taken aback, and Su Yuan said with a smile: "There is a white shadow or a dark shadow on the surface of the earth's muscles, like a shadow cast on the surface, which is a high-grade feature, known as the blade of Bizen." ”

"If there is a shadow, it is called a shadow. If the edges of the film are chaotic like a chaotic blade, this is called chaos. If the edge of the film is in a straight line, it is called a stick screen, and it is commonly found in works of the Muromachi period. ”

"If it is intermittent, it is called a peony reflection, and when you blow it into the blade, a white epiphany appears, which is called white gas, which is a characteristic of the later works of Mino's den. ”

Xu Kui's face was full of admiration after hearing this, he deserved to be a master, he knew everything, he knew everything, and even the little devil's door was clear.

After reading the dozens of famous knives collected by the Liu Sheng family, Su Yuan has long become a well-deserved master, just said a little bit, after thousands of years of development, the theory of knife casting is broad and profound, and it is difficult for ordinary people to master all of them in their lives.

Different styles of knife work, in different eras, will have different designs. For example, many of the knives with horns are old knives, and the hermitage is a feature of knives from the roots of the house. The three buildings are the designs commonly used by the knife workers of Xiangshu, and the ancient knives of Maruto Kyushu Island and the north.

In old knives, the surface of the earth muscle may be abrasive due to years of rubbing, revealing a darker core iron, which, together with the original color, will form another peculiar charm.

For example, the works of the famous swordsmith Qingjiang will produce the effect of catfish muscles or clear muscles, and the works of masters of the Yamashiro national sect will produce the effect of coming muscles, and there are all kinds of things.

Therefore, not only the swordsmith, but even the swordsman has a very high status in the island country, and he is the guest of honor of the famous family. There are at least sixty or seventy kinds of bare muscles, plus dozens of different blades, which are combined to require extremely high connoisseurship.

In the ancient era of cold weapons, a famous knife was a symbol of status, and there was only one way to test the knife, which was to kill people!

The highest karma can penetrate 90 to 80 percent of the thickness of the human body, 5 to 60 percent of the thickness of the human body for good karma, and 2 to 40 percent of the worst karma.

Wars are rampant, and it is also the most glorious troubled era of the katana, trying to cut living people directly, and each of the works that has been immortalized for centuries is stained with blood and life.

For example, the demon knife known as the hundred people slashed - Muramasa!