Chapter 978

Jun'an doesn't know what medicine Gu Qianxue's gourd sells. On Chuyan's face, though he doesn't show contempt on his mouth, he looks down on him in his heart.

In Jun'an's point of view, even if Gu Qianxue can cure, he can't be an all rounder? If a teenage girl can win in the sword casting meeting, then the famous sword villa will become a master if she studies and studies the sword carefully for hundreds of years?

The team set off again, including Yulian and Yucui, all of them under the guidance of Jun'an, and headed for the mine.

The reason why the famous sword villa casts swords first-class is not only because of its pursuit of technology, but also because the mountains around the villa are rich in iron ore, which is quite different from other iron mines in other places. The iron produced is harder and purer.

Along the way, Jun'an explained the process of casting sword for Gu Qianxue.

Although it is casting sword, it is not casting in fact. The more appropriate word should be forging.

Casting is essentially different from forging. The former is to melt the material, then put it into the grinding tool and cool it into shape; the latter needs forging to knock out impurities in pig iron to change its performance. The latter is not so much iron as steel.

The mountain of Mingjian villa produces a kind of ore called gold and iron. According to Jun'an's description, Gu Qianxue speculates that the gold and iron is actually iron ore.

The first step is to select gold and iron, and then melt and cast into pieces of iron, which are pig iron. Because it contains many impurities, its performance is very poor, soft and hard.

To change its performance, it is necessary to burn the furnace fire and repeatedly forge.

The second step is forging. There are two kinds of forging, one is ordinary forging, the other is folding forging.

Because pig iron contains impurities, when the temperature reaches a certain high temperature, it will be cracked. Therefore, the furnace fire should be kept at a fixed temperature, so that the pig iron will not crack, but also have soft characteristics. In the ancient times when there was no thermometer, controlling the temperature became the skill of a blacksmith or a swordsman.

Another skill of blacksmiths and swordsmen is to forge iron.

When a piece of ironmaking is thoroughly burnt, it is taken out and hammered repeatedly on the anvil. However, every surface of the iron block must be hammered. The most important and the most difficult thing is that in the process of hammering, the force should be uniform and the attachment should be full. The iron block is fully squeezed.

The process of overstocking is like wringing water from a towel. Through this special extrusion, all kinds of impurities in pig iron are gradually discharged, and its performance changes essentially. Finally, pig iron becomes a steel that can forge sword.

This is the so-called "refining into steel".

After the "ordinary forging" is finished, the second process "folding forging" will be carried out.

The burned material is forged into a long strip shape, and the special iron knife is used to cut the cross section at the position to be folded, and then hammered to fold. Then the folded material is burned in the fire to soften it, and then hammering is continued to make the folded parts completely dense and adhered together. This process is called "welding".

The third step is to form a sword. As the name suggests, it is to hammer and extend the steel bar bonded as a whole to reach the required length of the sword. And then the shape of the sword.

This process is not too difficult, but it is very skillful, because there is a uniform standard for the length and style of swords. And the hand knock modeling is completely in the grip of the hand and the feeling of the heart.

Later there are quenching, cold forging, shaping and other processes, and even some people will temper.

After that, it is to sharpen and sharpen it.

From Mingjian villa to the mine, the carriage traveled for two hours, and Jun'an talked about it carefully for two hours. Gu Qianxue was dizzy and distended. She was a medical student, how could she understand forging? Now it's just pushing ducks on the shelf.

The mine is right in front of us. However, there is still a long way to go for the dead horses and carriages.

Jun'an asked, "what should be said has been said. Is there anything you don't understand?"

Gu Qianxue took a deep breath and said, "no, it's hard for you, young master Dongfang. I want to be quiet." Then he closed his eyes.

Jun'an happened to say dry mouth, see Gu Qianxue don't want to listen, homeopathy shut his mouth, look longingly at the first smoke.

The first smoke hung his head and ignored Jun'an.

So, what is Gu Qianxue thinking?

At this time, Gu Qianxue Liyi was almost soaked with cold sweat. She found herself extremely ridiculous. When she promised the old lady of the east to make a bet last night, she thought that the pig iron used in this era was a little better than bronze, but now it seems that the era has used wrought iron!

Wrought iron is steel!

She suddenly recalled that she had read a book in modern times that Chinese forging technology had reached its peak in the Sui and Tang Dynasties. The later improvement was only in terms of materials and details, and there was no room for improvement in terms of technology.

So she What should I do?

It has been installed, Haikou has already boasted, and the bet has been placed. Do you really want to stay as a servant girl for ten years?

It's not shameful to be a servant girl, but it's disgraceful to lose gambling.

Gu Qianxue shook his head and kneaded his temple. The more anxious he was, the more calm he should be.Manganese! She's putting all her bets on manganese now!

Manganese is a good thing, adding manganese just durability and hardness are better.

And many iron rich mines have manganese ore at the same time, which is her only hope.

Gu Qianxue can't make iron, nor can he estimate the temperature. Even if he can, he can't improve the technology any more. What can be improved now is the material.

The three men in the carriage did not speak and went all the way to the mine.

However, Gu Qianxue was shocked again in a cold sweat, but this time it was a surprise because she found manganese ore!

There are many ways to explore minerals, and the most traditional and low-level method is to find the manganese ore outcrop.

The outcrop of manganese ore is the most important direct prospecting indicator. Generally, layered secondary manganese oxide outcrop is found on the surface. The ore is mainly composed of pyrolusite, pyrolusite and metamanganic acid ore, with obvious secondary structure, often mixed with a large number of siliceous and argillaceous materials, with sparse texture. The boundary between the top and bottom of the ore bed is relatively clear, and the arrangement of ore is still maintained According to these characteristics, it can be determined that this is a residual manganese ore outcrop.

Jun'an immediately called the miners to dig, the surface of manganese ore impurities, low purity, the more the surface of the ore purity is higher.

Fortunately, there was a miner who owned manganese mine. The mine was originally produced by mining iron ore. according to common sense, non gold iron was directly backfilled into the waste mine hole. However, because the shape of the manganese mine looked like a goshawk and the manganese ore was black, it was left as a handicraft by the miners.

Thanks to Gu Qianxue's discovery, he immediately warned the miners that they could not hide manganese ore privately. If manganese ore was inhaled for a long time, it would be toxic. This is also the reason why Mingjian villa ordered the miners to backfill all the manganese mines into the abandoned mines.