Chapter 240

Of course, the advantage of casting is not only the furnace temperature.

And the fusion of materials!

Alloy is always stronger than pure metal.

Even if it is as strong as refined iron, appropriate alloy technology can also make it from quantitative change to qualitative change!

And these two kinds of technology, obviously this iron old man is quite proficient.

Qin Murong shook his arm, moved his waist, and then looked left and right. He took out a hammer from the side and directly cut the table to expose the fine iron ingot below.

"Anvil and hammer, that's enough."

Qin Murong gently smile, and then said: "in this stove, what is burning now?"

"Refined iron."

The old iron man said quickly.

Qin Murong said: "refined iron, it's not bad. Is it mixed with other materials?"

"Mixed, there are..."

At this point, he suddenly stopped.

It's a secret.

It's not just his secret!

What has been handed down from generation to generation must not be easily told to others, even if it is "backward".

Qin Murong suddenly said: "it's OK, don't tell me, just say you join those things, what effect you want to achieve."

"Oh, that's good."

The iron old man was grateful in his heart and quickly said: "the blade made of refined iron is not hard enough. It's just like being cut by a kitchen knife. In fact, if it is made of refined iron, the blade will be more fragile, so some things are added to increase its sharpness."

"What about hardness?"

"Hardness?" Iron old man to this kind of vocabulary some confusion, but soon understood, said: "also added hardness!"

"Oh, that's a simple alloy to increase the hardness. Isn't it charcoal?"

"Ah?"

The iron old man's face was flustered, and his eyes were like seeing a ghost.

Qin Murong said with a bitter smile: "no, no, it's not just charcoal. Judging from the fracture texture of the two swords, it's not just charcoal. There should be a kind of metal, which is very strong and corrosion-resistant Well Is it ancient silver

"This This... "

Iron old man this really flustered, stare round eyes, even want to kill.

"OK, OK, your expression tells me that I guess right."

Iron old man did not say for a long time, just looked at Qin Murong in consternation.

Qin Murong really wants to laugh.

Ancient silver.

It's very similar to the chromium of previous generations. It's hard and antirust, but its own toughness is really not good. However, as long as it is mixed with steel, it has a wonderful effect.

Ancient silver is not silver in circulation.

After all, apart from the so-called "high corrosion resistance", the currency is also "easy to be divided".

The surface of ancient silver is extremely smooth and corrosion-resistant. It looks brighter and more beautiful than silver, but it is too difficult to separate and mold, so it is difficult to become a currency, but it does not affect having such a name.

Qin Murong waited for a while, waiting for the iron old man to digest a little, and then continued: "so there is no secret about the gold and iron affair. You don't have to think about who secretly told me the formula, or any other guess. This is what I guess, and then confirm it through your expression."

The old iron man came back slowly. Then he sighed and shook his head with a bitter smile: "sir It's really tough. "

Qin Murong said with a smile, "what's so strong about this? It's just that I've come into contact with and seen more people in workshops, and I have a little more experience than ordinary people. "

"Sir, you are too modest..."

Qin Murong turned his lips, took a look at the furnace and said, "it's almost done. It doesn't need to be completely melted. Take it out first and I'll have a look."

"Ah? This... "

Two people who pull the bellows look at the iron old man hesitantly.

The old iron man said hastily, "listen to the Lord!"

They stopped. First, they used an axe to knock open a piece of burnt clay beside the stove to expose the flame inside. Then, when the flame gradually stopped, they took out a small crucible with tongs from inside, which was a mixture of red iron and molten iron.

It looks like a shiny porridge.

Qin Murong felt his chin and looked at the pot of things. Through its color and traces of heat elimination, he analyzed the characteristics of this metal.

Then I looked in the room, took out a piece of black metal from the corner, took out a knife from the belt, and ground it on the surface. There was a kind of silver luster in it immediately, but the luster disappeared quickly, and the oxidation speed was not too fast.

Qin Murong nodded and took out a small file. He filed a lot of powder on the metal and put it into the crucible.

This action startled the old iron man and quickly asked, "Sir, what is this for? It's Xuanwu gold. It's used to make sword Tan. Why did you make powder and throw it into the molten iron? "Qin Murong said with a smile: "the powder is better fused. Besides, the Xuanwu gold Oh, it's called xuanwujin? I don't know what it does. I just like its rusty and changeable appearance. It's obviously tough. "

"The toughness is good. Although the hardness is worrying, it's the safest way to make sword Tan. Even if it's buried underground for tens of thousands of years, it won't change much."

"Is that true? This kind of metal, whose surface oxidation will immediately form a protective layer, is actually the best to use, just like silver, but silver is still too soft. "

"Yes, it used to be popular to make fittings with silver, but now it's better to use this basaltic gold. It's not only the color, but also its eternal advantage. It's said that if it is made into a pillar, it can lift the sky! "

Qin Murong nodded, and then said: "the fusion is almost done, there is no need to burn again, this time the amount is less."

Then he picked up a basin of water and poured it directly on the crucible.

"No!"

There was a roar of white smoke, a few clicks, the crucible was directly exploded, and the room was full of steam, invisible.

When the wind blew away, Qin Murong rubbed his nose and said, "er Just a little bit. "

"What do you want to do, sir?"

"I just want to see if the things you cook will crack because of the sudden drop in temperature."

"This You don't have to do that, do you? "

"Let's see first."

Qin Murong got close to the iron. Now all the iron has turned black, and there is white smoke on it. It's obvious that the temperature can't fall down directly because of this.

There are even signs of redness in some places.

This proves that there is a high specific heat in it.

In ordinary life, the highest specific heat is water. If it is higher than water Fear is not common.

After touching his chin and checking his left and right, Qin Murong nodded and said, "it's good. There's no cracking or deformation. It's good."

"Oh That's good. That's good. "

Old iron man has a bitter face and doesn't know what to say.

Qin Murong directly picked up the iron tongs, picked up the iron, then threw it into the stove, and said, "keep blowing, start burning!"

"Ah?"

All three of them were confused.

Iron old man said: "this Why is that? "

"You care so much? Let you burn, you burn. "

Iron old man is also helpless, can only order two apprentices to start firing.

"The old iron man, there is no crucible, this burning Don't you want to burn all the stoves? "

"Let you burn, you burn, which so much nonsense?"

The iron old man also gave up, but also angry at the apprentice.

After all, what Qin Murong showed before Some frightening, let him have a kind of feeling unable to refute, and refuted It seems that in the end, it's still my fault, and I'll hit myself in the face.

The apprentice was also scolded. He quickly waited on the flame. He picked up the yellow mud and was ready to seal the mouth of the stove.

"What for?"

Qin Murong stopped them and frowned at them.

"Feng "Ah..." The apprentice said bitterly, "if it's not sealed, how can we burn iron?"

"No! That's it! "

"OK All right

Two people put down the yellow mud to pull the wind box.

They don't care.

They can do whatever they want to do. They regard themselves as puppets and don't care about anything else.

The old iron man didn't care about it. Anyway, he would either lose his belongings, watch Qin Murong's jokes, or learn the real craftsmanship, the craftsmanship of the Qin chamber of Commerce, which is the envy of all craftsmen in the world.

It seems that none of them suffered.

In the process of burning, Qin Murong would look at the mouth of the stove from time to time. About a quarter of an hour later, Qin Murong said, "stop, it's OK."

Then he took out the iron block with a pair of pliers and put it on the anvil. The sledgehammer swung up and smashed it down.

Poof, the iron was smashed into a discus!

Qin Murong himself was also startled.

It took me a while to react. Now I'm a Kung Fu person, and my strength is great.

This one hit too hard, but it didn't affect.

The pincers turn the discus around, and the discus becomes an iron bar with a few hammers.

The whole process of Mars straight up, looks like playing iron flower, can't say good-looking.

Of course, with the movement of the hammer, the iron block gradually changed, which also made them stare big eyes and face incredible.

What is this?This is not Gradually become a long sword or a long knife?

To do so What's the difference between casting and casting? It seems that it's a little different, but what's the difference? It's not good. The only thing for sure is This technique is no worse than casting!

Qin Murong looked at the iron bar, looked left and right, then threw it into the stove and said, "go on!"

Very fast. This time, the two fuel tanks are in place.

When the iron bar became red, Qin Murong kept knocking on it again. This time, we can see that the iron bar became a long knife, some slender long knives, slightly curved.

When Qin Murong knocked out the blade, he nodded contentedly, but then threw it into the stove, and said: "when pulling the bellows, three short and one long, big mouth breathing, every breathing, not fast or slow."

They immediately nodded and began to pull according to Qin Murong's instructions.

Qin Murong is looking for a small hammer next to him, about the size of his fist. After balancing, he just sits and waits.

"It's really hot and tired to make iron. It's easy to do it."

Iron old man a Zheng, then quickly say: "immediately!"

He ran to the back and brought him tea.

Qin Murong took a few drinks, then got up and said, "OK, stop."

The iron bar burned red again, and he took it out, and then there was a crackling hammer.

It seems a bit chaotic, but in fact, the change of the long Dao is more and more clear.

Until it has become a long knife, with a blade and a tip, which gives people a sense of beauty and delicacy.

Then Qin Murong let the sword burn again, and filled the tank with water.

"Do you have any ice?"

"Ice?"

The old iron man thought for a moment and immediately said, "yes! There seems to be some hidden in the cellar. Do you want to eat or drink? "

Qin Murong rolled his eyes and said, "take some up, just a bucket, not me."

"Oh, yes."

The old iron man went out again. When he came back, he was carrying a bucket of ice in his hand, but he also brought a man back.

The man still murmured until he entered the door: "I said tie Lao, you are not right. Last year, when you collected the ice, you did your best, but this year your quantity has been used up. The rest has nothing to do with you. How can I explain to you if you take it like this? You even asked me to tell them that the ice is melting. Tie Lao, melting is me! Are you not trying to harm me? "

"Well, well, I've been mumbling all the way, and I've followed. What are you going to do? Be careful, I will throw you into the stove and burn you! "

"Old tie, you can't beat me."

"Hum!"

Tie Lao's face turned red, but he ignored him. He put the ice bucket in front of Qin Murong and said, "Sir, here you are."

"Oh, yes."

Qin Murong picked up the ice bucket, which was full of large pieces of ice. He took a long sword with him and made a mess in the bucket. He filed down the large pieces of ice. Then, in front of everyone's face, he poured all the ice directly into the sink in the face of everyone's astonishment.

"Ah

The icekeeper immediately screamed and yelled, "what the hell are you doing?"

Old iron man's eyes twitch, too.

Ice is very precious here, and we all cherish it.

In the summer in the forest, although it's cooler to live in a cave than outside, sometimes it suddenly feels muggy, and it's quite unbearable. At this time, you need to use this ice. If you drink a glass of ice, it will be cool, at least you can sleep.

Ice is here. It's used as medicine.

Now that they are so wasted, they are naturally distressed.

Qin Murong ignored them, went straight to the stove, took out the long blade, and then thrust it into the sink

Squeak!

The sound of entering the water was sharp and harsh, like the cry of some small animal, which made people stop talking.

Qin Murong let the blade rest for a while, then took it out, and then stretched out his hand to play on it. The sound was still clear.

"Not bad, the mountain stream is really good water."

Then he took out a small file from his arms and filed the long one from the beginning to the end.

The small file is extremely "fleshy", the blade becomes smooth and bright instantly, but the friction marks on it are very heavy, but the whole picture of the file can be seen, which can be said to be good-looking.

After filing, he took out a knife and kept cutting at the edge and corners. The blade of fine ferroalloy was chipped by his knife. It looked like cutting wood. People were curious about the knife in his hand.

After finishing, he threw the blade into one of the bellows pullers' hands and said, "grind, grind several surfaces as flat as possible.""Oh Oh, yes

The man quickly took it, but he was still confused. He could not help but turned his head and asked, "that How do you know I'm good at sharpening knives? "

Qin murongha laughed and said, "you can see whether a craftsman is a craftsman or not. You can see your hands. Your fingers are thick, your nails are seriously damaged, and your texture is clear. There is black mud in them that can't be washed clean, which proves that your hands are not only soaked in water all day, but also eroded by iron powder. This is what a knife grinder looks like. Cough, isn't it very simple? Why are you so surprised? "

"Oh Oh

Pull the wind box of dry smile two, quickly take out the grindstone to start sharpening.

He is really a good hand at sharpening his knife.

The casting is called "amazing" at the corner!

The surface is horribly rough.

In this world where there is no angle grinder, no belt grinder, and no diamond grindstone, only ordinary grindstone and a pair of hands are needed to grind until the end of time. Similarly, although this method is stupid, it can also train the best grinder!

Qin Murong felt that he was ordinary in doing these things, but he didn't know that in other people's eyes, it was just amazing!