Chapter 171: Full of Fire

In the boiler, there was a sizzling sound, and Lu Xuan stared at the boiler, as if he had a perspective eye. Xu Qing sat on the side, took out a handful of fried broad beans and slowly swallowed them. This broad bean is noisy, not as crispy as fried, very hard, a handful of fried broad beans can be eaten for most of the day, often chewing out a mouthful of saliva, the broad beans have not been bitten rotten.

About half an hour passed, and there was no sound from the boiler, Lu Xuan looked at Xu Qingdao: "Lord Xu, is this, uh, charcoal of yours, burned out?" ”

Xu Qing swallowed a broad bean, and then said to Lu Xuan: "Mr. Lu, after the boiler cools, open the furnace again." ”

After waiting for another half a pillar of incense, the outer wall of the boiler could already be touched with his hands, Lu Xuan looked at Xu Qingdao again: "Lord Xu, where is this green fire full of furnaces?" ”

Xu Qing smiled and said, "Mr. Lu, don't worry, this is the preparation in advance, you now open the stove and take out the things in the furnace." ”

Lu Xuan didn't understand, and said puzzledly: "Lord Xu, what else is left in this boiler?" Aren't they all ashes? ”

Although he was puzzled, Lu Xuan also expected to see the green fire full of furnaces in his lifetime, and since Xu Qing had already nodded, he no longer hesitated and asked his men to turn on the boiler. Xu Qing saw that Lu Xuan didn't understand a little, so he walked onto the small bridge by himself, and when the lid of the pot was opened, he thought that a large puff of smoke would rise, but at this time he didn't. Xu Qing looked into the pot and saw some slightly reflective silver-gray porous fast, this is not coke or what?

"Hahahaha, it's refined!" Xu Qing stroked his palms and was overjoyed, like a warlock who was addicted to alchemy: "Come on, come on, take out the thing with many holes below for my own official." ”

Lu Xuan's curiosity couldn't help but increase, suppressed his doubts, and said, "Lord Xu, dare to ask what else to prepare?" ”

Xu Qing jumped off the bridge: "Mr. Lu, it's the same as ordinary iron smelting, except that this charcoal is replaced with the current thing." Xu Qing said, taking a piece of coke that had just been taken out.

Lu Xuan took it and took a look, but he still didn't understand, thinking that he was a doer, he didn't shed tears when he didn't see the coffin, and he had to see the real thing to believe you. I saw him beckoning to the others, preparing for the daily iron-making guys.

Xu Qing reminded: "Mr. Lu, the temperature of this thing is much higher than charcoal, you have to be careful if this stove can stand it." ”

Lu Xuan didn't reply, the fire was set up, and the coke was placed at the bottom of the boiler. Xu Qing looked at it and felt that there should be a little more than a bucket of coke, and the yield of coke in later generations was only about seventy percent, and the current output should be okay.

Seeing that all the preparations were ready, Lu Xuan asked, "Lord Xu, what kind of sword do you want to build?" ”

Xu Qing was stunned for a moment, he didn't know how much steel these cokes could make, so he returned: "Mr. Lu looks at it, the official doesn't know how much iron can be smelted here, if you can, let's build a sword." ”

The knife is heavy and slashes, and it also needs to be added to increase the hardness, but the sword is heavy and needs toughness, so it is relatively simple, and it can be cast directly from steel.

He added: "If there is still a lot of rail, then it will be okay to keep it and use it later." ”

Lu Xuan didn't say a word and only nodded, as if he was going to break his psychological preparation as soon as he spoke. But seeing him take a deep breath, he raised his head and squinted his eyes for a while, and then said, "Let's start......"

Xu Qing couldn't understand it anyway, and he couldn't understand the terms they said, so he couldn't pick up his hands or lift them, and he couldn't help much, so he stepped aside and ate broad beans by himself.

In this workshop, although there is only one boiler, there are many other things. For example, there is a row of iron guns in this workshop, and there is no other place. Xu Qing walked to a corner and saw three rows of iron swords and iron knives hanging here, with different appearances, which should have been created by Lu Xuan during his usual experiments.

Brushing over these upside-down swords, he heard the sound of jingle bells, which was very pleasant, and Xu Qing couldn't help but feel a little stupid, even if these sounds had no melody.

And at this moment, the iron-smelters there exclaimed, "Ah! Green fire, green fire! A green fire full of stoves! ”

For Qinghuo, Xu Qing had expected it a long time ago, but when the voice of the ghost came out, Xu Qing was still startled. Looking back, I saw Lu Xuan teaching his apprentices with a solemn face: "Oh, what are you ghosts called, it's not good to make iron!" Come with an iron mold! ”

After a while, I saw a lever device suddenly set up there, and someone stood on the small bridge, using a spoon of unknown material, and scooped a large spoonful of molten iron out of the boiler. Someone placed the iron mold on another workbench, and the man on the bridge used a lever to pour the molten iron into the iron mold with precision.

After several spoonfuls of iron were poured, Lu Xuan commanded people to add coke and iron blocks, preparing to use the rest to refine another pot.

Xu Qing approached the workbench, but he didn't dare to get too close, just see it, and reminded from afar: "When you build, it's good to use charcoal, which can improve the hardness of the surface." ”

Next, the molten iron in the iron mold is fixed into shape, and then turned into sponge iron, and then beaten with a sledgehammer and a small hammer to further remove the impurities in the molten iron. This is followed by quenching, tempering, quenching, and then low-temperature tempering until the sword is in optimal condition.

While Xu Qing was looking at the sword, Lu Xuan's side, using the remaining coke, added some charcoal, and then practiced some iron blocks, no, it should be steel blocks. These pieces of steel are set aside and used later. Seeing that all the green flames in the boiler had disappeared, Lu Xuan seemed to be satisfied, took a long breath, glanced at Xu Qing, and hurriedly walked over to meet Xu Qingdao: "Lord Xu is really a contemporary god of work, the villain admires it." ”

His apprentices' eyes also changed when they saw Xu Qing, and their eyes were full of worship, so they almost changed their doors on the spot and worshiped Xu Qing as their teacher.

Xu Qing helped him up and said: "Don't dare, don't dare, if this method can benefit the country, then my merit is indeed immeasurable." But I can only dream about it, and to really implement this method, I still need Mr. Lu's help. ”

Lu Xuan simply knelt down: "Lord Xu, the little old man has been working for decades, as long as you give an order, my old bones will also go up the knife mountain and go down to the sea of fire." ”

Xu Qing shook his head when he heard this, this Lu Xuan is also a straight intestine, addicted to iron smelting, as long as you can give him a breakthrough in technology, he can kneel down and apprentice. However, even if you come to the front of the third-grade master and don't know the technical skills, he is also cold.

Xu Qing pulled Lu Xuan aside again, and told him that this law was a secret of the country, and before reporting it to the emperor, he temporarily stopped the people present today. Lu Xuan naturally knew the seriousness of this matter, and immediately agreed, and he also told Xu Qing that the people in this workshop were actually being monitored.

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I heard that if you reward red envelopes, you can get 300 vouchers, but I don't know if it's real or fake