Chapter 71 Bronze is dead, iron shall prevail
"Do you want to try it?" Madam Xu was a little excited. Among the great men of the Mohist school throughout the ages, there were very few swordsmiths. Although every generation of great men was a master of mechanical engineering, there were differences between mechanical engineering and swordsmithing.
"Let's give it a try!" Jin Yao was actually very curious about how bronze was purified from copper ore in ancient times, and how chromium was added to the cross pattern to make the ancient sword immortal for thousands of years.
Seeing Jin Yao and Madam Xu leaving arm in arm, the Six-Fingered Black Knight felt the evil feeling of being abandoned!
This guy is going to usurp the throne! Is it really okay for you, Madam Xu, to follow him like this? Do you not love me anymore? Am I abandoned?
The six-fingered black hero looked at Gu with evil thoughts, but fortunately, this guy always had a problem with Jin Yao.
"I'm curious too!" However, Gu's words interrupted the Six-Fingered Black Knight's fantasy.
So, a group of people followed Madam Xu to the Mo family's spare sword-making workshop.
This is a small sword forge next to the sword pool. After all, not every sword is qualified to be forged in the central sword pool. Ordinary swords can be forged on the periphery, and there is no need for such a high temperature.
Malachite is the most common and easiest to refine native copper ore, so the Mohists stockpiled a lot of it.
Jin Yao remembered that the melting point of copper was around 1000-1100℃. With the current capabilities of the Mohist School, it would be difficult to reach this temperature unless it was purified using the basalt magma from the Sword Pool.
"Charcoal?" Jin Yao was a little stunned. He was dumbfounded to see that Mrs. Xu actually used charcoal to separate bronze from malachite.
" Don't be stunned. It's a waste if you don't use your horizontal training to swing the hammer!" That's right. Mrs. Xu didn't fancy Jin Yao's sword-making skills. No matter how strong he was, could he be compared with their Xu family? What she liked was Jin Yao's horizontal training golden body, which was a skill created for swinging the hammer!
Jin Yao understood a little bit. Master Xiang had told him the same thing before. If he came to Mohist School, he would definitely be targeted by the Xu family.
"Eighty for the big hammer, fifty for the small hammer!" Jin Yao thought about it and quoted a price. He couldn't work for free.
"That depends on how much you can refine it!" Mrs. Xu didn't care. As for money, the Xu family was not short of money. An ordinary sword cost about a hundred dollars. The unit of a precious sword was gold, and the unit of a famous sword was city!
The most important thing is that my Xu family has as much money as we want. I can forge coins or even make alchemy instead of swords.
"Okay!" Jin Yao struck the apex according to Mrs. Xu's instructions.
The sledgehammer was swung violently, and with a "bang", the earth-shaking hammer broke out, and a lot of debris appeared on the red bronze.
"Eighty, eighty, eighty!" Jin Yao shouted while hammering hard with the sledgehammer in his hand.
Mrs. Xu was very satisfied. She slowly taught Jin Yao how to exert and control the force. She kept turning the copper pillar in her hands. In less than a quarter of an hour, a bronze sword blank appeared on the sword-casting stone.
"That's right, you will swing the hammer for me from now on!" Mrs. Xu directly named Jin Yao to be his exclusive hammer swinger.
"No, I'm the chief debater!" Jin Yao shook his head decisively, "You have to pay more!"
Mrs. Xu was stunned at first, then nodded. As for the money, well, with this guy's strength, it would be no problem for him to make ten refined swords a month. One sword would be his labor, and after deducting one as cost, the remaining eight would be pure profit. This business could be done!
Don’t ask why you earn so much, the answer is: knowledge is priceless!
"I can help you make the Mo Dao that you want, but the price is that you have to swing the hammer for me for three years for free!" Mrs. Xu thought about it and decided to show her capitalist attitude to the end.
"Okay!" Jin Yao answered decisively.
With Madam Xu's fame, if she just opens her mouth, there will be countless swordsmen willing to come and exchange three years of hard labor for a sword.
Jin Yao was stunned for a moment when he looked at a pile of black and red gravel with a metallic luster next to the malachite. Iron ore!
"Why doesn't Master Xu use these ores for refining?" Jin Yao was puzzled.
"The temperature is not high enough. Theoretically, it should be very hard, especially for the kind of Eight-foot Mo Dao you want. This should be the most suitable ore. However, even the magma in the Sword Pool cannot melt this ore!" Mrs. Xu shook her head. They had also studied it for a long time, but the amount they obtained was too small and the process was also very difficult.
"Temperature? I know how to do that!" Jin Yao said. The temperature they created by playing with the sky rocket reached a golden orange color, which corresponds to 1200℃, which completely reached the melting point of iron.
It is not necessary to reach 1200℃ to extract pure iron. Adding other alloys can completely lower the melting point.
The most important thing is the blast furnace! This thing is easy to make and can raise the temperature to an outrageous level.
“???” Mrs. Xu was stunned.
Jin Yao hesitated for a moment, explained the principle of the blast furnace, then waved his hand and asked Gu to find Mo Bian's disciples to simply build a small blast furnace.
"Let's try it!" Mrs. Xu was also very curious, but Mo Bian was a theorist, so if it could be achieved in theory, then the actual result wouldn't be too far off.
Then, Jin Yao saw something even more outrageous.
Obviously, the blast furnace can raise the temperature to the extreme, but...
Watching Madam Xu use her inner strength to move towards the blast furnace like a blower, and then watching the flames change from golden orange to blue, then to white, and finally...
"Boom~" The blast furnace collapsed. The blast furnace was made of stones and mud. It could not withstand the temperature of the white flames and was burned to pieces and exploded in an instant.
"Run!" Before the blast furnace exploded, looking at the change in the color of the flame, Mrs. Xu was also very aware of the terrible temperature. After all, she was a master swordsmith and knew very well what the change in the color of the flame meant.
"What did you do?" The six-fingered black warrior and others who were watching the excitement didn't react. Then Jin Yao, Madam Xu, Master Xu and Mo Bian's disciples fled like flying. Then there was a loud bang, and the pure white flint flew...
However, no one paid attention to him. Madam Xu was very excited, and the swordsmith and Mo Bian's disciples were all very excited.
They thought that a blast furnace was powerful because it could increase the temperature, but they forgot that internal force could also accelerate the burning of the flame, making the temperature even more terrifying.
"I think I can mass-produce famous swords!" Mrs. Xu looked at Jin Yao with a smile. At this temperature, what kind of famous sword could not be produced?
The most difficult thing about a famous sword is not only that ray of Tao essence, but more importantly, the temperature is not enough to forge the sword blank needed for the famous sword. Now that the temperature problem has been solved, he can start selling famous swords wholesale!
What's more, iron ore can also be refined. There is plenty of this stuff in the world, but because it cannot be refined, hundreds of countries around the world ignore it. They can buy mines at a very low price!
"A new era has arrived, and bronze will become a thing of the past!" Mrs. Xu knew very well that after the temperature rose and iron ore was used, bronze would also be replaced.
"Just a little change!" Mo Bian's disciples' eyes lit up. They couldn't understand Madam Xu's sense of honor, but they only knew that it seemed that they wouldn't be short of money in the future!
