The frying method of steel has been used in the Western Han Dynasty in that world, that is, iron powder is added to liquid and semi-liquid molten iron, and the carbon content in the molten iron is eliminated by using iron powder and oxygen in the air to make it more tough steel. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

Of course, this kind of steel cannot be compared with the steel of later generations, but it is more than one grade higher than the bronze swords commonly equipped in various countries.

Zhao Zheng is about to forge a Tang knife, of course, a small steel frying method can not meet the forging needs, among which the trick of Tang knife production is local quenching.

Different parts use different quenching methods, so the hardness of the final blade will be different, to achieve the perfect state of hard blade and tough back.

Of course, the best of this skill was not in Huaxia but in Fusang, and the lack of iron ore led them to be extremely careful when forging knives and strive for the best.

So these people with good moral and average IQ invented the method of covering soil quenching, using the prepared soil to cover different parts, and then heating the blade to a certain temperature, and when it is quenched in water, the blade will produce different hardness because of the different parts of the protection.

This method is more convenient than the general local quenching, and the operation is simpler, so it was not until the development of modern industrialization that the production of composite steel clamping gradually withdrew from the historical stage.

Pouring molten steel into a billet, the fiery red molten steel reflected Zhao Zheng's face, but it didn't take a drop of sweat from him, and a pale black true qi on the surface of Zhao Zheng's skin swam around, and finally entered the jade pendant under his neck.

"Uncle Tao, pee on the horse."

Tao Yuan covered his nose and put a bucket of horse urine in front of Zhao Zheng, "Zi~~" A puff of white smoke floated up, and Chun Niang and others who were watching on the side covered their noses with handkerchiefs. But the smell still reached the nostrils, and the disgusting women retched.

Zhao Zheng smiled secretly when he saw this, and looked at the carpenter who was also fine, and cast a look, the black-bellied master and apprentice had already secretly sealed their sense of smell, and naturally they didn't know the "sourness".

"Gash ~~, Zhao Zheng, hurry up, why did you add horse urine to these muds, the old man was holding him in his arms just now."

Tao Yuan pouted his head and endured the smell of urine and other unknown smells, that kind of dirt was good, but it was too disgusting.

"Vomit~~" Tao Yuan couldn't help it, and ran outside to vomit to his heart's content.

"Vomit~~" Xiaozhu and others were also infected, and they all hugged the pillars and vomited, but they admired Zhao Zheng in their hearts. Xindao: The head of the family is powerful, and those horse urine can come in handy.

Horse urine lard is a filth that ordinary people avoid, but in the contemporary era without chemical quenching agent, the concentration ratio of horse urine lard is an excellent quenching agent.

Zhao Zheng finished covering it with dirt, and adjusted the thickness with the memory of his previous life. I don't know why after I settled down on the day of my arrogance, some of the cold knowledge I had read in my previous life was still fresh in my memory at this time, and the memory of the Tang knife forging process video was also the reason why Zhao Zheng dared to forge the knife himself, and the carpenter became an assistant instead.

"Master, let's heat it up again."

The carpenter nodded silently, but his hand held the handle of the bellows and pulled it up, which was also Zhao Zheng's original, which greatly solved the problem of low firepower in the past.

"Thorn~~"

After quenching again, Zhao Zheng took out the knife blank, held the handle of the knife and cleaved it vigorously on a test knife pile next to it, the wooden pile was divided into two, the fracture was smooth and natural, and the knife edge was still glowing with cold light, and it was not damaged at all.

"Good knives!" The carpenter couldn't help but praise. He had forged swords since childhood, but he had never seen a steel knife so sharp, and the slightly curved shape seemed to make the knife more powerful.

"The old man really wants to forge this kind of good knife himself," said the carpenter, smiling as he rubbed the blade of the knife.

The knife has been cast, and Zhao Zheng's plan is also half completed, of course he has a bigger plan.

Zhao Zheng cruelly interrupted the "exchange" between the carpenter and the Tang knife, and said: "Master, you know this technique, and I'm afraid that I won't have a chance to forge the knife in the future, so I promised you that as long as you help me make a hundred stoves, I will let you make ten such knives, but there is one thing that you can't show to outsiders." ”

Where does the carpenter who has gone crazy care about that, as long as he can forge a peerless Tang knife with his own hands, he can do anything, and hurriedly nodded his head. I didn't take a break, I took a model of a stove and poured it carefully.

Tao Yuan looked at Zhao Zheng who came out to rest, and asked suspiciously: "Why do you forge such a good Tang knife, why don't you give the old man one if you don't play a few more, it is estimated that Jing Ke will also ask for one for you." ”

Zhao Zheng shook his head, looked at the moon in the sky and said, "Uncle Tao, why do you say that the moon is so precious, and the scribes have always praised it with beauty?" ”

Tao Yuan scratched his head, and said in his heart, how can I, a big boss, know these things in the literary circle.

Zhao Zheng continued: "Since antiquities, rare things are precious, just like there is only one moon in the sky. Now we are going to give gifts to the little marquis, relying on the name of this treasure knife that is difficult to find.

I have also forged a lot of those ordinary hundred steel knives, but they can't compare to this Tang knife, this is the effect I want. ”

Reading people are more mindful, Tao Yuan secretly swore that he would never trust a reader in the future, it was so terrible, he secretly played with you in the palm of his hand to give you gifts.

"Are you thinking about letting me pit you in the future, don't worry, I usually tell people of your level how to pit you."

Tao Yuan had a black line, and said in his heart What happened to me at this level, I had also worked in the special forces of Yan Kingdom. But looking at Zhao Zheng's eyes, he understood that this was another way to support himself, and sighed and said: "I saw from your eyes that I was going to be busy again, so let's say what hard work do I have to do." ”

"Haha, the brain has developed for the second time", Zhao Zheng clapped his hands and laughed, "But this time you thought wrong, there is a beauty difference." Tomorrow you take Xiaomei to Nanjun, this time your name is called Tuhao. ”

"Local tyrants? It's a strange name, but I can tell from your laughter that it's not a good name. Tao Yuan seemed to really have a big explosion of his mind, and he guessed Zhao Zheng's mind in a row.

"The old man still doesn't understand, why do you want to go to Nanjun, can't you open a store in Yixian to sell it?"

Sure enough, I have a long IQ, and it seems that I can't underestimate honest people in the future. Zhao Zheng nodded and said, "You're right, but it's too cheap Ji Jing, how can my big knife be given to him lightly."

And I heard that this kid has grown up with Zheng Sleeve since he was a child, and the two are as close as sisters and brothers, this time we provoked the sleeve girl, you said that if you send a knife, you can let Ji Jing help us? ”

"It shouldn't work, but if we go to Nanjun, we can let the little marquis help us, you said that he has a deep relationship with the sleeve girl."

It seems that the congenital gap is not something that can be simply made up for by acquired development, Tao Yuan still can't turn this corner, Zhao Zheng said directly: "Where is Nanjun, the fief of the Marquis of Anping, that is the person who has a relationship with Yihou, although the two marquis are now old and no longer quarrel." But the little marquis of the two families is young and vigorous, and they are constantly compared on various occasions.

The little marquis of the Anping Hou family is good at writing, our little marquis is good at martial arts, and the two of them can't fight for a piece for so long, so we will help them this time.

This time, when you go to Nanjun, you must sell the Hundred Refining Sword with great fanfare, and you must attract the attention of Qi Xiao, and let him buy one to show off in front of Ji Jing. But let Ji Jing not buy it, but let him be disappointed when he needed it the most, I will pass on the news to you at that time, once you receive it, immediately close the stall and run away, and ask Ji Jingbai to run. ”

"Oh~~, the old man finally understands, but where did you learn these truths, why did the old man live most of his life and never heard of it."

Zhao Zheng smiled and said, "Knowing is knowing, not knowing how to know." ”