"It's almost done."

Seeing that the knife embryo on the anvil had gradually become the shape he expected, Lou Wuchen thought about it, and the pig iron plate that had been prepared next to him slowly flew into the furnace under the control of the spell.

Under the pure white high-temperature flame, the pig iron plate quickly turned red and hot, and quickly turned into a bright white light like a fire. As everyone was watching, the surface of the hot pig iron plate squirmed faintly, slowly gathering a drop of molten iron on the lower place like a candle on the fire, and then dripping silently-

Suddenly, the dripping incandescent iron seemed to be pulled by some force and expanded rapidly, as if it turned into a silver film, which was impartially attached to the knife embryo that Lou Wuchen had already prepared!

"--when!"

The moment the silver film was pasted, Lou Wuchen's iron hammer fell and a dazzling golden light was smashed!

The essence of steelmaking is actually to obtain high-quality iron-carbon alloys with a specific carbon-containing ratio. Unlike the kung fu method of refining, the steel filling method is to directly target the target. By using pig iron with high carbon content as a carburizing agent to seep into the low carbon content of iron blast, the iron becomes steel due to carbon seepage, and pig iron becomes steel due to decarbonization, which greatly shortens the smelting and forging time, and greatly reduces the technical difficulty and operation requirements of steelmaking. You can simply and quickly obtain high-quality good steel!

Of course, the traditional steel filling method also has its disadvantages. The molten iron is relatively viscous, and in actual forging, it can only seep into the shallow part of the iron that has not yet penetrated, while the molten iron that has not yet penetrated quickly cools down, resulting in uneven carbon content on the surface - but this problem is perfectly solved under the control of the Lou Wuchen spell. The molten iron pulled by the spell can evenly cover the surface of the iron embryo to complete the steel filling process!

Under Lou Wuchen's control, the iron water turned into a silver film and pasted it on, and then it fused perfectly with the ripe iron knife embryo in the regular knocking of the forging hammer, as if dazzling elves kept flying into the long sword!

The old blacksmith stared blankly at this scene that seemed like a myth.

When Lou Wuchen used cooked iron to make a knife embryo, the old blacksmith had already sentenced the strange long sword to death in his heart: without repeated stacking and forging, the soft cooked iron embryo body cannot be called a qualified blade at all, and maybe a gap will be cut out with one blow!

...However, the flying silver elf made the old blacksmith's back tremble involuntarily. He didn't quite understand what was going on, but a feeling in the dark told him vaguely.

He - some major change was born before his eyes!

"--when!"

With the last hammer, the ring-headed sword on the anvil was completely formed. Lou Wuchen quickly raised the hot sword and threw it into the quenching cylinder that had been prepared!

"Wait..." In the rolling white water mist, the hot long knife quickly cooled down. This is an important step in the last moment of the knife. The supercooled austenite is transformed into martensite or bainite through rapid cooling, thereby greatly increasing the strength of the steel. However, traditional single-media water-cooled quenching has the problem of internal stress caused by uneven heat-expansion, cooling and contraction at low temperatures. Therefore, Lou Wuchen only cooled the long knife in the water for a few seconds, and then quickly moved it into another oil cylinder!

Double liquid quenching method!

——————————————

"No, I have to think of a solution..." In the small dark room in the backyard, a boy named Mu Yu was turning around the circle, "According to Brother Yuzhu's words, Uncle Shi's stubborn temper was offended, and he actually hit the immortal... Immortal, Immortal..."

The boy kept muttering these two words, and walked and stopped and walked. Finally, hesitated to the front of the door and stretched out his hands seriously, then plucked up his strength and pressed the black wood horizontal bolt behind the crack of the door.

——Nothing happened.

"ha……"

The boy sighed.

Sure enough, is that just the power given to him by the immortal temporarily?

Mu Yu recalled the power that once lingered in his hands. The fulfilling feeling made him a little intoxicated. Before that, Mu Yu's goal was to work hard to exercise his craft. Like adopting his own uncle, he walked through the most steepest mountains, found the most peculiar ore, and created the best sword. But today, Mu Yu suddenly felt that there was something that attracted him more...

——No, now is not the time to think about this! The boy shook his head fiercely.

Although that power is gone, my body still remembers the method of using power! In that way, even my power... Mu Yu stepped back to the door a few steps, recalling the feeling of exerting force at that time with his limbs. It seemed that some invisible force was guiding his body, and he posed in a strange posture of squatting. His hands and feet moved slowly and forcefully, as if a slowly tensioned bowstring collapsed to the limit, and then he rushed out!

The white cloth on the boy's body was soaked in the red of blood in an instant, and the bandaged wounds were wounded

His mouth burst out in an instant, but he didn't realize it, and even felt a little excited: Yes, it was this feeling!

A few feet away in the blink of an eye, the boy's weak palm was about to hit the solid dark wooden door, at this moment—

The door is open.

"Muyu, I'll secretly—!?"

With a loud bang, the boy who was unable to hold his feet had no time to force himself into a hug, and turned into a rolling gourd with the shocked girl outside the door and rolled out.

"It hurts so much... Mining, are you okay? Didn't I ask you to go to my room to rest? Why are you here?"

The girl had tears in her eyes, but she did not scream. She said with a tender and tender expression: "I think you must... By the way, leave quickly. I just heard outside secretly that the immortal's sword had been refined. Uncle Shi was going to fight against the immortal!"

————————————

"...Oh, I was so angry just now." The ring-headed sword in front of me was completely completed, but Lou Wuchen sighed as if he suddenly felt aroused, "Do you really want to compare? Otherwise, let's forget it."

"...No. I'll ask the immortal for advice." The old blacksmith shook his teeth, but he still bowed his hand, holding his long sword slanted and making a "please" look.

"Sword-fighting?" Lou Wuchen's face was even more depressed, "It's not fair. The sword was originally used to stab and not slash, and I'm closer to the thick-back straight blade of the knife, and I'm taking too much advantage..."

"——Please give me advice!"

Lou Wuchen grabbed his head, turned to look at Yun Xingxi beside him, and finally picked up the ring-headed knife he had just made and held it slantedly against the old blacksmith.

The old blacksmith's face condensed, and he withdrew the sword with a heavy expression, and then swung it hard!

——When Mu Yu rushed into the door, he saw this scene:

The immortal stood with a sword, his face was silent. The long sword in his hand was like a perfect mirror, flashing with a cold and cold light; but the old blacksmith had a pale face, and the sword in his hand that had been infused with his years of hard work was only half left. The cross section trembled rapidly and let out a "clang" whine!

"...I lost." The old blacksmith looked as if dead. "The little old man was arrogant and did not know the world was high... and let the immortal deal with it."
Chapter completed!