Uncle Ma was busy making a fire and melting iron. From time to time he glanced at Qin Huaidao who was busy. He was full of shock and curiosity. He didn't know when Qin Huaidao would make iron, but he didn't dare to ask.
Qin Huaidao did not explain, so he made a long crucible out of clay, which could be used to burn a fire underneath, with holes on both sides. He also hired a carpenter from his house to help, and made two bellows, which were connected to the holes on both sides of the crucible to blow air at both ends.
Promote the infusion of oxygen and greatly increase the combustion effect.
After that, Qin Huaidao mixed fine sand, clay and water in a certain proportion to make a mold for the horse spear, which was divided into upper and lower parts. He deliberately lengthened the spear head slightly and left a blood groove in the middle for easy cutting and stabbing.
Leaves texture on the ends to increase friction and make it easier to grip.
After the mold is almost dry in the shade, the upper and lower parts are closed, reinforced, and erected. Just when the molten iron is melted, pour it in from the end hole. The molten iron flows into the mold. After cooling, a handful of horseshoes are made, but they are only rough and cooked.
Iron is far from hard enough and contains many impurities. It needs to be beaten and tempered before being processed into steel.
Beating and tempering means smashing it with all your strength. The two of them went into battle together. It will become softer when it is red-hot, and the two of them are strong, so it is easy to smash it. After two hours, it will be almost done, and then it will be tempered into steel.
To turn iron into steel is to increase the carbon content. If it is too high, it will be pig iron, if it is too low, it will be wrought iron. Generally, it is between 0.022% and 12.11%, depending on the needs. If the carbon content of the tool is higher, it can be quenched and tempered.
Solve the problem of being too brittle and become tough and sharp.
Qin Huaidao invited Uncle Ma and others out. The next technology is beyond this era. Once spread, the consequences will be very serious and even trigger a war. Although Uncle Ma is one of his own, people's hearts are unpredictable. Qin Huaidao does not mind passing on other technologies to everyone.
, even if it leaks out, it won’t be a big problem. At most, one of the ways to make money will be lost, but the method of steelmaking is too special and involves huge implications, so it cannot be spread to outsiders.
Put the horseradish into a long crucible, then cover it with charcoal, black beans, and soil powder, and heat it under the crucible. With a blower in each hand, it makes a whirring sound, and the charcoal heats up rapidly.
Charcoal and tempeh are both used for carburizing, and soil powder is used as a dispersant. The advantage of doing this is that the carburization obtained by Ma Shu is very uniform and stable, the carbon potential is high, and the efficiency and effect are quite good. There is a scientific name for "Steel Stewing Method"
”.
Until late at night, Qin Huaidao opened the crucible, took out the horse and flicked it with his fingers, and there was a crisp sound, which was the familiar sound of steel. This step was still not finished, and tempering was still needed. Tempering can be divided into low-temperature tempering and medium-temperature tempering.
There are three types of tempering and high-temperature tempering. Qin Huaidao adopts low-temperature tempering, which means reheating the horseradish to about 150~250℃, keeping it warm for a period of time, and then cooling it in coolant.
A certain proportion of salt and oil is put in the coolant. This quenching can improve the physical hardness. The key is that its wear resistance and elasticity are also very good.
Until this step, a steel horse spear is completed. The rest is polishing and sharpening, which is time-consuming and laborious. You can just turn it over to Uncle Ma for help. Qin Huaidao followed the same method and made another sword and a three-edged spur.
An abstract black bird is specially engraved on the sword.
The black bird is the totem of the Wang family. If you want to trick the Wang family, you have to give it some sweetness. As for whether the Wang family will be disadvantaged if they get this sword, they are not worried at all. It is the person who decides the outcome, not the sword.
By the time everything was finished, it was already the next morning.
Qin Huaidao asked Uncle Ma to come over and told him to polish the sword first and then go back to rest. He had been busy all day and night and was very tired.
Uncle Ma originally thought that Qin Huaidao was joking. After all, he had never made a weapon. After getting the sword, he was shocked that he was an immortal weapon. He was so excited that he wanted to stop Qin Huaidao to become his disciple on the spot, but he did not dare to shout out and began to polish it seriously.
After another day and night, Uncle Ma finally polished the sword. The blade was dark green, smooth, as smooth as a mirror, reflective, and the blade was sharp, which made people palpitate. Uncle Ma's eyes were red, but he was so excited that he found a sword.
He put on the sheath, took the sword and hurried to the door of the backyard, shouting excitedly: "He'er, He'er, can the young master wake up?"
"It's Uncle Ma. The young master has woken up early and is practicing his mace right now." He'er came out of the backyard.
Uncle Ma couldn't enter the backyard, so he offered the sword with both hands and said excitedly: "Please pass this sword to the young master."
"give it to me."
He'er hurried into the backyard with the sword and came to the martial arts training place. Seeing that Qin Huaidao had just finished practicing, he hurriedly stepped forward and said: "Young Master, Uncle Ma asked the slave to hand over the sword to you."
"Is it polished? Let me take a look." Qin Huaidao took the sword and pulled it out. A cold air hit his face. With a flick, it was like a dragon roaring and a tiger roaring. He picked up a Mo Dao next to him and hacked at each other.
"when--"
Sparks flew everywhere, and a gap appeared in the Mo Dao, but the sword was unscathed. I was completely relieved. The Mo Dao represented the highest level of weapon smelting in the Tang Dynasty. Even the Mo Dao could cut the gap. Is this sword enough to deceive the Wang family?
After changing into casual clothes and having some breakfast, Qin Huaidao hurried out and came to a weapons shop. The shopkeeper knew Qin Huaidao and came up to him. He cupped his fists and saluted: "I have met the young man of Qin Mansion."
It is said that Qin Huaidao inherited the title of Duke of Qin Qiong Kingdom, and it is not an exaggeration to call him the Duke of Qin Xiaoguo. However, the shopkeeper is from the Boling Cui family. Although he is a branch, he is still a concubine. He is not welcomed in the Cui family, but he also has the pride and dignity of the family.
Qin Huaidao was superior and looked down upon Qin Huaidao, who was born in a noble family. It was considered polite to call him "Little Prince".
Qin Huaidao said coldly: "I heard that the weapons you have here are unparalleled in the world. Do you dare to compete with them?"
When the shopkeeper heard that he was not here to buy weapons, but to cause trouble, his expression became even more unkind, and he asked coldly: "You are the only one who comes here to compare weapons every day, how can you compare?"
"When I come to the door, I will naturally follow your rules."
"That's very good. I bet a thousand taels, sign a document, and the government will guarantee it. Do you dare?"
"Hurry up, I'm in a hurry." Qin Huaidao urged, pretending to be angrily.
It is common to test weapons. Once the test is successful, the value of the weapon will double. The Cui family will be annoyed, so they set a rule of betting one thousand taels, and the shopkeeper will immediately ask the clerk to call someone.
News of the weapons test spread quickly, attracting countless people to watch and look around. Cheng Chumo, who was on patrol, happened to be passing nearby and came after hearing the news. He asked with concern: "Brother Qin, I heard that you were injured. I went to visit you at home."
However, the housekeeper said that you are resting and it is not convenient for you to see guests, is it okay?"
"I haven't recovered yet, thank you for your concern."
"There is no need for us brothers to be polite. We are all investigating. If I know who did it, I will definitely cut off his head." Cheng Chumo said harshly.
Qin Huaidao felt the sincerity and sincerity of the other party, and felt warm in his heart. It was good to have such a friend. After chatting for a few words, several officials hurried over and briefly asked whether both parties were willing. After the competition, they wrote a document and signed it.
Once the bet is drawn, the bet will be established and legal. Anyone who dares to default on the money will be investigated by the government.
Cheng Chumo was very familiar with Qin Huaidao, and knew that the best weapons in the Qin family were Qin Qiong's tiger-head spear and a pair of iron maces, but the Cui family's weapons were famous, so he asked with some worry. "Brother, can you do it?"
"Don't you know Bibi?" Qin Huaidao said nonchalantly, looked at the shopkeeper and added: "The documents have been signed, let's get started."
"I'll help you, go and ask for the Red Blood Sword." The shopkeeper shouted in a cold voice.
There was an uproar all around. The Red Blood Sword is so famous. It is said that the Cui family asked the descendants of the master swordsmith Ou Yezi to make it with meteorites from outer space for three years. It is the treasure of the store and is as red as blood, so it is named the Red Blood Sword.
The competition never failed, and someone offered to buy it for 10,000 taels.
Cheng Chumo panicked when he heard the Scarlet Blood Sword. He quickly grabbed Qin Huaidao's arm and lowered his voice and said, "Brother, how about - I will protect you when you go out, no one dares to stop you."
"It doesn't matter." Qin Huaidao smiled lightly, pushed Cheng Chumo's hand away and moved forward.
The onlookers whispered and pointed, and someone said disdainfully: "The Red Blood Sword is out, but you only want to lose. This person simply overestimates his capabilities and is arrogant."
"That's it, is this person crazy for trying to justify his weapons? It's not good to have anyone to compete with. If he has to compete with the Cui family, he is simply bringing humiliation to himself."
"The ending is clear, there's nothing to see, let's go, let's go"