"Guest, do you want any saber?" It was still the diligent junior a month ago, after he habitually asked, he suddenly felt that the person in front of him was a little familiar, "Have you ......been here for more than a month?" The shop that sold swords was sold to him a knife at a high price, this kind of strange thing was hotly discussed among several of them for several days, but the knife was strictly hidden by their shopkeeper, and no one was allowed to see it.

"Ha Luha, brother, good memory. Dare to ask your shopkeeper where is it? Lin Feng said with a smile.

"In! At! I'm going to ask for it. The guy sensed that something unusual was going to happen, and immediately ran to the back. Lin Feng originally came to the scene to inspect, and directly followed with his five children.

Through a curtain, Lin Feng entered a courtyard at the back. The overall area of the courtyard is about two acres, with a row of houses on the north side and an ironsmith shop in the southwest corner. Lin Feng saw at a glance that the stout man from last time was waving a sledgehammer with two strong men barehead, forging a knife repeatedly, and the beads of sweat on his body fell into the red molten steel in the sway, and there would always be a puff of white smoke.

Hearing the shout of the guy, the stout man raised his head, saw Lin Feng at a glance, and immediately handed the sledgehammer in his hand to the person next to him, and rushed over in a hurry.

"First...... First...... Sheng, you're here! The stout man came to him, but he didn't know what Lin Feng was called, so he could only rub his hands and ask a little shyly.

"Ha Luha, my brother is so strong. In Xia Lin Feng, a person from Xingzhou Baoyi, he should be a few years younger than his brother, please call me Lin Feng. What is the name of my brother? Lin Feng said with a smile, feeling that this stout man felt very refreshing, which was in line with his temper.

"Don't dare, I'll call you Mr. Lin. The villain's name is Sun Cuo. When I was born, my father wanted a girl, but he didn't want to see me as a boy, so he shouted that it was wrong, it was wrong, so he named it Sun Cuo. The man also said in a modest tone. The first time I saw Lin Feng, he looked like a Confucian with extraordinary spirit, but now that I haven't seen him for more than a month, I feel that temperament is even more obvious. Because Sun Cuo has always mainly sold Confucian swords, it can be said that there are countless scholars, but it is the first time to see such a peaceful, mysterious, and inscrutable scholar, which makes him admire and have more respect.

"Ha Luha, Brother Sun, I fell in love with you as soon as I saw you, and I will bother you again today, can you allow me to visit the place where you work?" Lin Feng intended to get married to Sun Cuo and prepared to continue the on-site inspection trip.

"Of course, Mr. Lin, please!" Sun Cuo immediately led the way. Originally, this was a secret of the industry, and ordinary people were not allowed to enter casually, but Sun Cuo felt that this Mr. Lin could be trusted, and he would definitely bring changes and turnarounds to his shop.

Lin Feng observed carefully, and the two men who were working did not raise their heads, but just stabbed their heads down. They sandwiched a deep steel plate into a V-shaped lighter steel plate, and then began to forge it repeatedly, and in the process of quenching and cooling, they also smeared a layer of mottled mud on the blade.

Seeing this, Lin Feng basically understood that Sun Cuo's way of forging steel knives continued the practice of Tang knives.

Tang knives, together with Damascus knives at that time (known as iron knives in China), were two types of steel knives that were in the world at that time. Tang knife, on the basis of absorbing the previous hundred steel-making and local quenching techniques, invented the technique of covering soil and burning blades and cladding steel and clamping steel, which created the reputation of Tang knife through the ages.

In the process of forging, the blade is covered with mixed clay that does not need high hardness, and then the sword is heated to a specific temperature. When the red-hot blade enters the water, the bare part cools down quickly, while the dirt-covered part has less temperature change, resulting in a different hardness than the bare part. The faster it cools, the less hardness it gets, but the tougher it is. Conversely, the slower it cools, the harder it is, but the less toughness.

Baotou steel is similar to sandwiching steel, which is a softer low-carbon steel sandwiched into a V-shaped hard high-carbon steel. The clamping is a piece of high-carbon steel sandwiched between two layers of low-carbon steel. While ensuring excellent toughness, it also ensures that "good steel is used on the blade", which is the essence of high-quality sword making.

In Lin Feng's cognition, steelmaking is actually a process of removing the essence and storing the essence, through a series of operations such as oxygen supply, slag making, heating up, and deoxidizer, the iron ore is removed from carbon, oxygen, phosphorus and sulfur, and the gas and inclusions in the ore are removed.

Where do you start to change? Basically, all modern large-scale steelmaking methods, such as converter steelmaking, open-hearth steelmaking, and electric arc furnace steelmaking, only appeared after 1856. In Chinese and foreign history, for more than a thousand years after the appearance of Tang knives and Damascus knives, there was no great progress in steelmaking technology, and the changes in steel weapons were only reflected in the shape, and the methods were not too different. It seems that we can only work on the details such as coke and blast furnace.

Thinking of this, Lin Feng bowed his hand to Sun Cuo: "Brother Sun, can you take a step to speak?" ”

"Okay, okay. Please follow me. Sun Cuo immediately walked towards the house to the north. Lin Feng motioned for Brother Chen Li and the five to wait outside.

As soon as he entered the house and beckoned Lin Feng to sit down first, Sun Cuo ran to the corner, opened the lock, took out Lin Feng's fruit knife, and put it on the table. Lin Feng stopped Sun Cuo's move to pour tea and let him sit opposite. With his right hand, he took out five pieces from his chest and placed them on the left side of the table, and then drew a large circle on the table with his right hand.

"Brother Sun, I appreciate your straightforwardness and simplicity very much, and I have a proposal that I want Brother Sun to choose once."

"Mr. Lin, but it doesn't hurt to talk about it." Sun Cuo knew that something that might have a profound impact on him might happen below, and his tone was much more relaxed.

"Good. This is the consistent money, as the deposit and interest when I mortgage the knife, this is one of Brother Sun's choices, Brother Sun chooses this, he can guarantee no loss, and there is no risk at all. Speaking of this, Lin Feng paused for a moment, seeing that there was no discoloration or desire to reach out for money on Sun Cuo's face, and then said:

"Now, I give Brother Sun another choice, I can provide Brother Sun with some methods and ways to improve steel casting, which is enough to greatly improve the quality of the swords cast by Brother Sun, and greatly increase the output of steelmaking. There is one point, the younger brother must tell Brother Sun in advance, at present, the younger brother has officially entered the Zheng Wangfu, which is quite important to King Zheng, and his fame will naturally be no problem in the future, I can praise Brother Sun to become the world's first sword-casting master, and at the same time, it is also possible to make Brother Sun the most powerful weapon dealer in the Tang Dynasty in the future, I don't know what Brother Sun thinks about this? ”

The last time Sun Cuo agreed to Lin Feng's knife move, it has fully proved that he is not a person who is willing to keep his hands and does not want to make progress. He stared at Lin Feng's eyes: "I believe in Mr. Lin, but I don't know what Mr. Lin has to say?" ”

This is to talk about conditions, it seems that this person is not blindly honest. Lin Feng took out another ten pieces of money from his body, pushed all the money on the right side of the table, and then said unhurriedly: "I will find an opportunity to make you and your sword famous all over the world." Before that, I partnered with Brother Sun with ten dollars, a knife, and some ideas. Lin Feng is the first time to apply the concept of intellectual property rights to practice, although these property rights are all plagiarized from his memory from later generations.

"I wonder how Mr. Lin wants to divide it?" Sun Cuo also knows that who accounts for how much is the most critical.

"Okay, Brother Sun is quick to speak. I don't know how much Brother Sun wants to make this shop? Lin Feng asked rhetorically.

"What my father left me was valuable if it wasn't worth much, but it wasn't worth much. I don't think I need to mention money to Mr. Lin. In this way, as long as the new method works, the net profit of all swords in the future will be divided between you and me, I don't know what Mr. Lin thinks? Sun Cuo suddenly had a desire to gamble, and it was very strong.

Since ancient times, the salt and iron policy has been oscillating between the government and the private sector, and the current Southern Tang Dynasty is called the official camp, but due to the development of commerce, the separation between the government and the private sector is not so large, so Sun Cuo can openly fight iron and sell swords. But if there is no strong backstage support, it is now a war year, and the direction of the court has changed, and this shop is gone.

"This can't be done, Brother Sun is so righteous enough, and the younger brother can't take advantage of it. I'm three, you're seven! Lin Feng is a little embarrassed, he has a little money, a fruit knife, the so-called intellectual property rights, the parties recognize it is valuable, and if they don't recognize it, it's a fart.

"No, I can't. My shop is not prosperous when it is said to be popular, and it is not broken when it is broken, I really hope that it can be prosperous in the future. In this way, before the business is big, you will be four and I will six, and after the business is big, you and I will split the account in five or five. Sun Cuo said firmly.

"Okay, it's up to Brother Sun. May you and my brother have a prosperous journey from now on, and the wealth will be rolling. Lin Feng said happily. Southern Tang Dynasty heavy business, like Li Yu's future father-in-law, Zhou Zong, started with military exploits and made a fortune in business. This phenomenon of not separating officials from business was commonplace in the Southern Tang Dynasty. If you want to survive in the troubled times in the future, you must have your own financial support, and it is naturally the best way to open a gap in weapons and accumulate strength.

"Yes, Pengtu is a big show, and the money is rolling!" Sun Cuo subconsciously reached out and grabbed Lin Feng's outstretched right hand, and shook it vigorously a few times with Lin Feng's strength.

"Okay, Brother Sun, please wait for my good news. Within three to five days, I will send you the improved methods and patterns. Lin Feng didn't mention any contracts or anything like that, if the improvement is successful, it will naturally not be a problem, if it is not successful, it will just be a castle in the air.

Pushed away Sun Cuo's invitation to drink and celebrate, but finally did not block the consistent money that Sun Cuo had forced over, Lin Feng smiled and pushed the door out, motioning for the five brothers to go together.

Holding back to the door of Sun Ji's iron shop, Zhang Yuewen and several brothers glared at each other, and finally couldn't help it: "Brother Lin, what are you so happy about?" ”

Lin Feng rubbed his hair twice, making his already messy hair even more messy: "Ha Luha, without him, if it succeeds, our brothers will not have to worry about food and clothing in the future!" ”

What Liulang'er is most afraid of, it is nothing more than not having enough food and clothing, hearing Lin Feng's words, the five children immediately cheered loudly.