Master descends to earth

Chapter 43 Gold in the Mud

The next morning, everyone drove to the deep mountains outside Longquan to search for the abandoned Laoxi mine. Xu Kui had been here several times before, and he led the way, and quickly found the destination.

"Move down the instrument!" Emi Yagyu was dressed in sportswear, youthful, beautiful and full of vitality.He ordered his subordinates to remove many instruments from the car, ready to start looking for clues.

Metal detectors... mining analysis machines... X-ray spectrometers... there is even a miniature sonar radar!
Huimei Liusheng looked at Su Yuan, and said with some embarrassment: "If you want to do a good job, you must first sharpen your tools. These are all equipments that have been prepared a long time ago. They were originally planning to come to the mountains to investigate and find the whereabouts of the overburden."

Su Yuan waved his hand, it was easier to do things with more people, and asked others to scatter and use instruments to search, while he followed the clues he got yesterday and came directly to a small forest.

"Discovery!"

No matter how powerful the high technology is, it is not as effective as the golden finger. Soon a golden light appeared before Su Yuan's eyes. Su Yuan squatted down and grabbed a handful of air-dried soil, which was really different.

"Dig here!"

Xu Kui picked up the shovel and began to dig. Yagyu Emi also asked the bodyguards to help. Five or six strong men worked together, and quickly dug a big hole more than two meters deep. The golden light became stronger and stronger.

"That's it!" Su Yuan grabbed a handful of wet mud again, put it on his nose and smelled it, there was no earthy smell at all, and it was quite fragrant.

"Is this the legendary overburden?"

Huimei Liusheng was full of excitement, and she didn't care about the dirty, she jumped directly into the big mud pit, holding up the yellow mud with both hands, and said obsessively: "Kung fu pays off, I finally found it!"

Holding the yellow mud like a treasure, he ran up to Su Yuan and said excitedly: "Master, can these really be used to cover soil and burn blades?"

Xu Kui was also full of excitement, holding the yellow mud tightly with his big hands, and asked: "Yes, master, can the method of oil tempering be used?"

Su Yuan nodded, and said inscrutablely: "If the records in the ancient books are correct, these are one of the secret recipes used by generals to forge swords. According to the ancients, they contain the gold of the five elements, that is, various trace elements."

Take out the map, mark the location, call Mr. Jin, and ask the relationship to go through the mining procedures as soon as possible. There is an abandoned mine nearby, which has been mined out after a hundred years, and it just happens to be rented to cover people's eyes.

This kind of trivial matter was nothing more than a little effort for Jin Sanye, reported the location and coordinates, and got approval soon, and this geomantic treasure land was included in Su Yuan's pocket.

After finishing the work, we went down the mountain. After lunch, Su Yuan asked Xu Kui, "Where is the best charcoal in Longquan?"

"If you want to talk about the best quality charcoal, you can count the Lijia charcoal kiln, which is real pine charcoal." Xu Kui introduced: "The price is too expensive, and only the rich can afford it."

expensive?Su Yuan looked at Miss Liusheng who was eager to try, in front of the real local tyrants, money was just a cloud.

Charcoal has been used to smelt iron ore since ancient times. Even though the chemical composition of pig iron smelted from charcoal and coke is the same, its structure and mechanical properties are still different.

Pig iron smelted with charcoal generally has a fine-grained structure, tight castings, and no cracks. Pig iron produced with charcoal contains less impurities and is suitable for producing high-quality steel.

Especially in the sword casting process, charcoal is often used as a surface flux. When the metal is molten, the surface flux forms a protective layer on the molten surface to separate the metal from the gas medium, which can not only reduce the splash loss of the molten metal, but also reduce the melting of the molten material. gas saturation.

"Brother, I heard that there is a secret method in Longquan. Putting yellow mud on the charcoal can raise the temperature and increase the success rate?"

Liu Shenghuimei looked at the black-faced god. Although Su Yuan had not formally agreed to accept her as an apprentice, he secretly called Xu Kui senior brother and the other party did not object, which made the little girl very excited.

"Well, this is Longquan's tradition of casting swords. Of course, there are various chemical combustion accelerants and blowers. Many people have abandoned the ancient methods and switched to high-tech to improve efficiency."

Xu Kui didn't have a good impression of the little devil at first, but after a few days of contact, he found that the other party was well educated and reasonable, and he really looked like a lady.

In addition, he is also a swordsmith and obsessed with swords, so he gradually changed his attitude towards Yagyu Emi, and the relationship gradually became harmonious.Although the master did not personally agree to accept this little junior sister, but a delicate little girl, as a daughter of a thousand gold, ran around to serve her, who would have the heart to refuse?

"Let's go around in a while. If the quality is up to standard, it doesn't matter if it's expensive. The charcoal must be used well!"

Su Yuan said seriously: "All steel products that require high hardness and wear resistance on the surface and good toughness in the center must be carburized. The carbon-containing mixture used to carburize steel products is called carburizing. carbon agent."

"However, the carburizing effect of pure charcoal is poor, so the ancient method adds yellow mud as a better carburizing agent. The wisdom of the ancients is extensive and profound, which is amazing."

Emi Yagyu and Xu Kui nodded desperately. The higher the level, the more they can discover the unfathomable depths of the ancients.Especially Huimei, the grand lady of a billionaire chaebol, actually came all the way to Longquan for a piece of yellow mud, which shows the fatal attraction of the secret recipe to her.

There is also Xu Kui, who is the No. 1 swordsmith in the famous sword villa, as a swordsmith on the list, the first time he met was also because of the ancient method of oil quenching, and he directly kowtowed to his master.Of course, it has something to do with pure personality, but it also shows the influence of lost ancient methods on masters.

Su Yuan looked at the two cheap apprentices, one black and one white, and felt secretly refreshed. He could get two coolies in exchange for a few words, so he just wanted to ask:
Who else?
In the afternoon, everyone came to the kiln factory near the outskirts of the city. There are two major characteristics of Longquan, one is the sword, and the other is the more famous Longquan celadon.

After chatting, I learned that the islanders admire celadon so much that it is regarded as a national treasure.Yagyu Zaemon was obsessed with the tea ceremony, and it was also because Longquan bought celadon at a high price in the early years. It was a coincidence that he met Kim Sanye, and the two became friends.

Every year, Sanye Jin spends at least several million to collect high-quality celadon as utensils for the tea ceremony. Yesterday, he called Huimei specifically and said that since he made a trip, he would bring some good porcelain back by the way.

Tea ceremony, kendo, incense way, and calligraphy are also known as the four major ways of self-cultivation in the island country, especially in the aristocratic circle, with a high status, similar to the ancient six arts, and even the emperor had to learn from childhood.

"Mr. Su is really knowledgeable. What we burn is genuine top-grade pine black charcoal, which has a high density and a high temperature. Even if it is burned for a day, there will be no ashes..."

"Other people's homes burn low-grade charcoal. What kind of miscellaneous wood such as sage, birch, oak, eucalyptus, elm, and maple are used as raw materials, and they will be useless after burning for three hours. The better ones are poplar, linden, and willow. Wait, the time is not short, but the smoke is too big, and the dust is all over the ground..."

"Our raw materials are all carefully selected pine wood from Huangshan. Have you heard of the famous Hui ink? We use similar to them..."

"I, Old Li, dare to pat my chest to assure you. If you go around the whole Longquan, you will never find another factory that can use the flame out of the kiln to burn charcoal. The others are all out of the kiln. The heat is extracted from the kiln, and then the fire is extinguished with wet sand, and the white charcoal that is burned is not the same thing as our black charcoal!"

(End of this chapter)