The opportunity to continuously train the power of the rune control is not every day, Yue Heng basically used it for continuous purification and smelting for the next hour, and gradually, the "smelting" rune was mastered by him.

"Miss Yue, the fine iron is ready, and then I will start integrating the smelting, and ask Miss Yue to do it herself!" Yue Heng said after resting for a while, his spirit had recovered to its best state.

Yue Feiyan cheered up and said, "This is natural! Brother Lei, hand over the molten tongs to me!"

Lei Fat Man hurriedly said: "Don't don't, don't be, leave this kind of rough work to me, third brother, don't you trust me as the second brother......?

Yue Heng knew that Lei Fat Man must be distressed by Yue Feiyan, but this matter was not trivial, he needed Lei Fat Man's help.

"Second brother, you have another task, Miss Yue, please get ready. ”

When Yue Feiyan was about to smelt and forge a set of tools, Yue Heng winked at Lei Fatzi, motioned for him to step aside, and whispered in a low voice.

"Second brother, do you remember the finished product I smelted just now?"

"So many weird metals, many of them I've never seen before, what's going on?"

"You don't care, there are five finished products here, I want you to keep in mind what they look like, I will tell you the secret recipe of the sword embryo, you strictly follow these recipes into the finished metal, and leave the rest to me." Remember, don't let her see the ingredients. ”

"Why? Feiyan is not such a person, do you want to guard against her?"

"Ha! It's so affectionate, it's all called Feiyan. But second brother, I can trust you, but I generally can't trust others. ”

Lei Fat Man was silent, he calmed down, glanced at Yue Feiyan's busy back, and then looked at Yue Heng, wanting to speak and stopping, and finally stopped dissuading: "You say, I won't tell others about these secret techniques." ”

Yue Heng smiled: "Don't be so nervous. Maybe I'll have to try a few more times to get the best formula, so we're going to have to fight here for the next two days!"

Quenching is also an important step, and Yue Heng must also use his divine sense to feel the concentration of trace elements in the water. This kind of thing is thankless, the divine consciousness is energy, and it can only roughly sense trace elements at the atomic level, after all, Yue Heng is only a fifth-level scholar with divine consciousness, and his ability to control divine consciousness is far inferior to an old man like Shao Li.

Then the three of them ate and drank to their heart's content. After recuperation, the formula alloy is smelted overnight, forged, quenched, tested, and evaluated.

The first long sword was baked, and after forging and cooling, Lei Fatzi personally took out the beast soul grinding stone grinder for rough grinding and cutting the blade, and the cold light was shining, which was very good-looking.

"This is a brand new longsword that has never been seen before! The blade is sharp, this long sword is actually different from the hundreds of long swords I have made!" Yue Feiyan exclaimed, feeling very shocked.

Yue Heng personally lifted the sword embryo, held the rough handle of the sword handle, weighed it, and slashed at the copper coin used for the test several times, the copper coin broke, the sword body rebounded to the point that his hand hurt, and the blade could hardly see the residual gap.

"The manganese-nickel content is slightly higher, and the hardness is there. Not to mention sharp, but almost no flexibility, this long sword, hehe. It's still far from the Longquan Sword!" Yue Heng sighed lightly in his heart and handed the hilt of the sword to the fat man.

"Divine weapon! Divine weapon!" Lei Fat Man stroked the wide edge of the blade, and praised it endlessly, his eyes were so bright by the cold light that he could barely open them, and kept muttering: "This is what I made with my own hands...... This is the ...... I built."

Yue Heng laughed: "Second brother, don't be so unproductive, okay? This is the first sword, okay." In my eyes, it's just a piece of waste!"

Yue Feiyan snatched the sword from Lei Fatzi's hand, and said unhappily: "This sword is obviously of the highest quality, surpassing other similar kinds, why do you call it a waste? You give me three months to re-forge and refine it, this sword will definitely become a mid-level top grade, and if it is sent to a good auction house, it will definitely sell for a super high price!"

Yue Heng and Lei Fatzi glanced at each other and smiled together: "Okay, this sword will be handed over to Miss Yue, let my second brother accompany you to sharpen it in the past three months, and then build a scabbard well, and strive to make it gorgeous and sharp, and then I will ask Lianhai Auction Agency to organize an auction and sell him at a good price!"

Yue Feiyan's eyes lit up: "Do you still know people from Lianhai Auction Agency?"

Yue Heng nodded: "That's right, if Miss Yue still has some good goods in her hand that she wants to sell, it is better to put them up for auction at that time." Take a break and prepare the second furnace right away!"

On the surface, it is a rest, but in fact, Yue Heng is summarizing the alloy formula data.

With the help of the golden dragon in the shrine, he can accurately sense the weight of the elements.

The problem with this sword is not that there are too many other alloys, but because of Yue Feiyan's mistake and Lei Fatzi's nervousness, some of the molten iron is spilled, resulting in a lighter total mass and a higher specific gravity of the alloy metal.

After Yue Heng's mental arithmetic, he firmly memorized the recipe of the first sword, and then made minor hint improvements to the smelting and forging process to start the second furnace.

Unexpectedly, there was an accident this time, too little manganese and nickel were added, resulting in the finished product being broken after quenching, just like glass!

"How is this possible!How is this done?" Yue Feiyan couldn't believe her eyes, she had never heard of a long sword shattering when it was struck, which shook her entire craftsman forging system, and at the same time she was confused and terrified by the secondary "affinity pills" that Lei Fat Man threw in.

"Blame me, blame me, it's me who said the wrong secret art formula...... Yue Heng hurriedly admitted the responsibility, he did say it wrong, this is the formula of low manganese steel, he pointed to the wrong material.

From morning to afternoon, when the three of them were extremely tired, Yue Heng found a little feeling on his side.

In front of them were the rough embryos of the four swords, which still needed to be coarsely sharpened and decorated, the first one was sharpened like clay, extremely tough, and the last three were tough enough, but the curvature still needed to be improved, and there was a certain difference from the Longyuan sword recorded in the historical records.

After Yue Heng found his senses, he stood up and encouraged: "For the last time today, I have roughly figured out the method of the Longyuan Sword, believe me, we will definitely succeed!"

Yue Feiyan said angrily: "You have said this three times today. ”

Yue Heng said with a smile: "This is definitely the last time, this time, I want to add the text of resonance, if you want to play, you can play a big one!Second brother, prepare the fine iron, Miss Yue, get ready for the earth fire smelting!"

Seeing that Yue Heng really took out a pen and paper and began to grind the ink, Lei Fatzi and Yue Feiyan glanced at each other, and immediately cheered up, which shows that Yue Heng is definitely not joking! )