The days of practicing with Jinghua

Seeing this, everyone was anxious, but they didn't understand sword making at all, so they couldn't help.

At this time, Moller touched his bald head and said, "Junior brother, could it be that the characteristics of this black ice and cold iron make it difficult for ordinary flames to melt it?"

Moller's words were like a heavy hammer hitting Helpless's heart. He glanced thoughtfully at the black ice and cold iron in the furnace, suddenly slapped his head and said: "In the past, generals forged swords, but gold and iron are difficult to melt. , His wife threw herself into the furnace, gold and iron are meltable, but ice and cold iron are difficult to melt. How can we not imitate the wives of generals?" As he spoke, his eyes emitted a scorching golden light.

Everyone was shocked when they heard that Bu Bu could say such extreme words.

"Master Wu, this is just a legend. How can you believe it to be true? Master must not act recklessly," Gu Yu said loudly with a frown on his face.

Unable to shake his head, he said: "Donor Gu Yu, the legend may not be true, but it may not be false either. I have read a treatise on sword making before, and the record on it is true, and it has been confirmed that this person contains a lot of trace amounts in his body. Elements, and the phosphorus in the human body is also helpful in forging swords. I think the reason why this black ice and cold iron is difficult to tolerate is because it is too cold in itself. It is protected by cold air, and ordinary flames cannot melt it at all."

Gu Yu shook his head and said: "Even so, people can't be thrown into the furnace. If it doesn't work, their lives will be wasted. If this is really necessary to make the Qiankun Liuhong Sword, I would rather not make this sword."

Jifeng also hurriedly said: "Master Wuwei, Brother Yu is right. We forged the sword in order to defeat Xiang Su and save the world of cultivation. If we really want a living person to sacrifice the sword, we won't become a demon who cares about human life. This What's the use of the sword? It's not appropriate."

Moller also nodded and said: "Amitabha, Junior Brother Wu, this matter is indeed inappropriate. I think I'd better think of another way."

Master Wufa stamped his feet and said: "You have misunderstood me. I didn't mean to use people to forge swords. In other words, this black ice and cold iron are yin and cold things, and they must be neutralized by masculine things. The most masculine thing in this person is the hot blood. I think the skills practiced by Gu Yu Donor come from the Qibao Tianxuan true power that has just reached Yang. This blood is naturally masculine. If it is added with pure Yuanyang energy, it will be fixed. If you can break the cold air of Xuan Bing Han Iron, then Xuan Bing Han Iron can also be melted, and the embryo of Qiankun Liuhong Sword can be cast."

Everyone was stunned when they heard the unexplainable explanation. The three of them looked at me, and I looked at you, and suddenly they burst into laughter.

"Ahem, I'm just saying, how could such a kind-hearted person like Master Feng allow people to throw themselves into the furnace just to forge swords? Haha, misunderstanding..." Gu Yu said with a dry smile.

Mo Le rolled his eyes at Gu Yu and said: "I'm just saying, how could Junior Brother Wen come up with such a bad idea? Now I know it's just a drop of your blood."

Gu Yu smiled and nodded: "I understand, let alone a drop of blood, just two or three bowls will be fine."

Unable smiled bitterly and shook his head: "You guys" there is nothing he can do about the rogue behavior of Gu Yu and the others.

Gu Yu smiled and said: "Master Wu, do you really want to sacrifice my blood to the sword?"

Unable nodded and said: "Now the only way I can think of is this method. Although I don't know if it will be effective, it is worth a try. You also want to forge the Qiankun Liuhong Sword."

Gu Yu nodded vigorously: "That's natural. This long sword carries our hope to hit Xiang Su. Without this sword, we simply can't deal with the flame magic sword and Yin and Yang wheel in Xiang Su's hand, so

We must cast"

Unable to laugh and said: "In that case, let's give it a try. If my conclusion is correct, the hot blood in your body can definitely melt the black ice and cold iron."

Gu Yu glanced at Mo Le, smiled and said: "Master Mo Le, could you please help me pull the bellows?"

Moller shrugged and said, "It is our duty to do so." He rolled up his large monk's robe and stepped forward to take over.

Gu Yu got free, took a deep breath, walked quickly to Wen Wen's side and said, "Master Wen Wen, what should I do?"

Unable to think for a while, he said: "I don't know how much blood is needed to melt this black ice and cold iron, so I feel sorry for you to put more blood."

Gu Yu smiled, slowly stretched out his left hand, and then explored the five fingers of his right hand, and golden light suddenly flashed on the nails.

I saw him gently slipping on his wrist, and blood surged out.

"Hurry up and drop the blood on the black ice and cold iron in the furnace." Seeing Gu Yu cut his wrist and bleeding profusely, he couldn't help but said in a hurry

Gu Yu nodded, stood on tiptoes and quickly placed his bleeding left hand on the furnace. Drops of bright red blood dripped down his wrist.

Just listen to a sizzling sound, and the blood quickly melts into the ice and black iron

As Gu Yu's blood dripped, the black ice and cold iron suddenly erupted with a burst of cold light, but was soon wrapped in a burst of fiery golden light. In the golden light, the black ice and cold iron melted rapidly.

I saw rising black air and smoke

Seeing this, I couldn't help but be overjoyed: "It's done, Guyu Donor, stop the bleeding quickly, otherwise it will be useless."

Seeing this, Gu Yu hurriedly stopped his hand, quickly gathered his energy, and blocked the blood vessels and meridians on his wrist, and the flowing blood stopped instantly.

Looking around, the gas in the furnace suddenly changes

Gu Yu couldn't help being shocked, "Master Feng, what is going on?"

Unable to get excited, he said: "Donor Guyu, please don't be alarmed. This is the stage that must be passed through when making a sword. When casting gold, the black and turbid gas is exhausted. The yellow and white followed by the black and turbid gas are the charcoal, branches, etc. attached to the raw materials.

The yellow and white gas produced by the combustion of hydrocarbons is mainly produced by melting tin with a low melting point first. At the same time, the oxides, sulfides and other elements contained in the raw materials volatilize and form flue gas of different colors. The yellow and white gas is exhausted, and the green and white gas is exhausted.

As the temperature rises, some of the green flame color of the melted black ice and cold iron is mixed in, so the blue and white gas appears. The blue and white gas is exhausted. The next higher the temperature, the black ice and cold iron is completely melted, and the capacity of the cold iron is greater than the tin measurement.

Once it enters, there is only green gas and the flame color is pure, indicating that too many impurities in the raw materials have vaporized and run away, and the remaining residue can be removed."

Hearing that he couldn't say that, Gu Yu calmed down and nodded in understanding: "So, this Xuan Bing Han Iron needs to be smelted a few more times."

Unable nodded and said: "Yes, when the Black Ice Cold Iron comes out of the Cold Iron, there must be a lot of impurities in it. To remove them all, it must be smelted many times. When the impurities are removed, it can be poured into the mold and then cast.

Became a sword embryo"

Gu Yu was originally going to bandage the wound on his wrist, but when he heard that he couldn't say that, he gave up the idea and waited until the next smelting to make it easier to draw blood.

Wen Feng seemed to have read Gu Yu's thoughts, and he smiled and said: "Donor Gu Yu, you can go ahead and bandage it. Since this Xuan Bing Han Iron has been smelted, your blood is not needed. The next smelting does not need to be cooled, just proceed directly.

But okay, it’s getting late, everyone should go and have a rest, the smelting behind this will take a lot of time.”

Gu Yu shook his head and said: "It's okay. I'm thinking about this place and can't sleep even thinking about it. It's better to accompany the master and learn some knowledge about sword making from him."

Ji Feng and Mo Le were naturally not sleepy either. For these practitioners, not sleeping for three to five days is not considered a master. Unexpectedly, their faces were full of excitement and they couldn't fall asleep even if they thought about it, so they nodded and said: "Yes.

Okay, you can also help me here."

As he spoke, the smoke and dust floating out of the furnace changed several times and finally turned into a pure cyan color.

Unable to look at the flames in the furnace, nodded with satisfaction: "The first smelting is complete, the impurities have been initially removed, we can now start the second smelting of Jifeng Donor, Brother Moller, slightly reduce the wind force

, wait until the melt in the furnace cools down a little, and when I tell you to raise the temperature, you can increase the wind power."

"clear"

I saw him lowering the speed of pulling the bellows slightly, and the temperature in the furnace suddenly dropped. The cold air of black ice and cold iron suddenly rose, and the flames once again showed a yellow-white color, and the black turbid air slowly floated.

Lift

Unable to smile with a smile on his lips: "This Xuan Bing Han Iron is indeed the king of cold iron. After being smelted like this, it can erupt with such strong cold air. It is really difficult to tame it. It seems that it can be obtained after casting the Qiankun Liuhong Sword.

busy"

Gu Yu glanced at Wu Wen apologetically, "Master Wu Wen, I've really troubled you this time."

Unable waved his hand and said: "Donor Gu Yu, why do you say that? Sword-making is my hobby. Now I have the opportunity to forge black ice and cold iron into a peerless magic weapon. This is what I dream of doing. How can it be considered troublesome?

You don’t know, but I am enjoying it now. When the black ice cold iron is poured into shape, and then forged several times, the feeling of holding a sword as sharp as clay in your hand is the glory of many swordsmiths."

Gu Yu can naturally understand this feeling of helplessness, just like when he took exams before. Whenever he solved a difficult problem, he felt so glorious and filled with joy. However, what he was doing now was far more meaningful and meaningful than the exams.

major

This is related to the future development of the entire world of cultivation, and the fate of all cultivators is also in his hands.

If he succeeds, he will be the number one swordsmith respected by thousands of people, his reputation will naturally increase, and his career as a swordsmith will surely reach its peak in the future.

If he fails, maybe his sword-making life will take a turn, so he can't afford to lose.

Gu Yu smiled slightly and said: "It must be possible, Master Fang, I believe in you, you can definitely forge this long sword..."

Unable gave Gu Yu a deep look and nodded slightly: "I also believe that I will definitely forge the Qiankun Liuhong Sword for you. I will definitely..."

The two looked at each other and smiled. This smile contained many emotions, encouragement, trust, gratitude, commitment, guarantee, firmness...