Chapter 338 The Power of the Bronze Arrow

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Twenty days later, the weather is getting warmer.

The pottery pot specially made by Lihu for smelting was finally completed, and he was excited to find Mufeng.

He was overjoyed when he learned that the pottery pot had been cooked, and decided to start smelting copper.

The main material for copper smelting is copper. He now has two options. One is to directly use the pure copper ore originally obtained from Xiong Da, and the other is to smelt copper from copper ore himself.

Mu Feng, who was eager to see the first batch of Jiang's weapons, chose to use pure copper ore.

In this way, he saves a process and only needs to smelt tin and lead ore.

Tin ore is relatively simple to handle. The tin ore is crushed into small particles, fired into the fire, and the tin flows out. The magazine floats on the surface, and the metal part sinks to the bottom.

The next step is purification, that is, remelting the tin with impurities, repeatedly extracting the metal part, and finally obtaining high-purity tin.

The extraction of tin is not complicated, but it is a little dangerous.

After Mu Feng demonstrated it in person and explained the main points to Li Hu and the others, he turned to lead refining.

The refining and extraction of lead is a bit complicated, and although there are many methods, there is only one method that Mu Feng can use at the moment - the burning method.

The firing method requires first smelting lead ore into lead oxide, and then smelting the resulting lead oxide, coke and limestone in an ancient wind furnace.

But Mu Feng didn't have limestone on hand, so in desperation, he tried to replace it with pure grass ash, but he didn't expect it to work!

After two procedures, he also successfully got the crude lead.

As for the purification steps of crude lead, it is almost the same as that of tin ore, that is, the process of repeated purification.

This repeated purification over and over again took five days before and after.

Mu Feng couldn't help sighing: "No wonder it took so long to smelt metal in the process of history, and the conditions are simple, and the craftsmanship is also a big problem! If I didn't have such a system that defies the sky, I'm afraid of any link. There is a possibility that the furnace will blow up and die!"

At present, there are three kinds of metals with the highest purity that he can currently obtain, and the next step is to smelt them.

The melting point of pure copper is the highest, but the hardness is not enough. It needs to add a certain amount of lead and tin to become tough and hard.

There is a ratio problem here.

Mu Feng had studied bronze ware in his previous life, and I remember that the ratio of bronze ware made in ancient times probably fluctuated in the range of "six to one", such as:

The ratio of copper to tin in the Qi Zhong Ding is six to one;

The ratio of copper to tin in the balance of the axe is five to one;

The ratio of copper to tin in the Qi of Ge Ji is four to one;

The ratio of copper to tin in the Qi of the Great Blade is three to one;

The ratio of copper to tin in Qi of Killing Arrows is five to two...

And adding a small amount of lead between the two ratios can increase the hardness!

Mu Feng compared these ratios, and he thought about the weapons he wanted to make. There were arrows, knives, and spear heads. There were also three ratios involved, five to two, three to one, and four to one.

As for the lead, he himself was not sure how much to add, so he had to try half.

Because it was the first time to try three-metal mixing, Mu Feng did not dare to refine too much at once, for fear of wasting the metal that he had finally refined.

As for the proportioning weight

It is heavy, and there is no scale that can't beat him.

He took two animal skins and wore them with leather ropes. He found a stick and hung it with a rope in the middle. Metals of roughly equal weight, and then proportioned from part-by-part metal.

In this way, the problem of metal ratio is solved.

The next step is the most critical step, which is smelting.

The metal that has been purified is not easy to be divided at this time, so the three metals cannot be crushed for smelting, and the process will naturally slow down.

This process is also the most dangerous and troublesome process to date.

Because the three metals have to be hand-stirred after they are melted in order to mix them together better.

But the problem is that at a high temperature of several hundred degrees, there is no way to stir the wood, bone tools, etc., either on fire or smoking and turning into ashes, and it cannot be stirred at all.

This made Mu Feng anxious. After thinking about it, he suddenly thought of a black metal stick that was captured by the Manglong Division before, and his eyes lit up: "That thing is cold to start, and it doesn't even show a mark when knocking on a stone. Yes, it should be possible!"

So he hurried back to the tulou and took this stick of unknown metal, guarding the "three golds" in the big pottery pot to melt.

Except for the three people in charge of burning the stove, everyone else was carried away by the wood wind.

As for himself, he also put on a leather coat all over his body to prevent the solution from spraying out.

Everyone looked at Mu Feng from a distance, holding their breaths and waiting for Mu Feng to stir the solution and then pour the mold.

Mu Feng looked at the "three golds" that had melted into bright yellow, felt the heat wave blowing on his face, took a deep breath, and stirred with a metal stick tied with a wooden handle using homemade leather gloves.

The sound of "chichichi" kept sounding, and Mu Feng was also very uneasy in his heart. He subconsciously raised the stick and found that the black stick was safe and sound.

"It's useful!" Mu Feng was overjoyed, and immediately regained his energy, and hurriedly stirred it up while it was not hot.

After stirring for about a minute, Mu Feng felt the heat wave coming, and he couldn't stand it.

In desperation, he had to pick up the animal skin and dipped it in the water prepared next to it, put it on his face, and continue to stir.

After repeating this for a few times, he stirred back and forth for no less than five minutes. He really couldn't stand the temperature, and it was estimated that it was almost the same, so he stopped.

After stopping, he hurriedly picked up the prepared clay pot, stretched out the handle, scooped out some metal juice, and hurriedly poured it into the prepared mold.

Arrows, knives, axes, spearheads...

At this time, Mu Feng didn't care about the proportions or disproportions, and he poured the molds one by one excitedly, and then he stopped.

"Okay!" Mu Feng clapped his hands and laughed.

Everyone who was watching from a distance in the distance came forward and looked at the copper ware that was gradually cooling and solidifying in the mold, and asked excitedly, "Are you ready?"

Mu Feng nodded and smiled: "Now wait for it to cool down naturally!"

So another long wait...

After more than an hour, Mu Feng guessed that these bronze wares were already formed, so he fetched a pot of water and carefully placed the bronze ware on the soil mold.

Remove and cool in water.

With a "chi" sound, the surface of the water bristled with water vapor, and everyone was startled.

Mu Feng cooled the copperware one by one, then picked up an arrow, looked at it, weighed it in his hand, and then put the hard rattan prepared in advance on the arrow, and held the arrow on a stone in front of everyone. Grind up.

For the sake of speed, he only sharpened the tip of the arrow, which took a long time.

Just when everyone was in a hurry, he finally put away the arrow, wiped his sweat, no matter the dust on his forehead and face, he shouted excitedly: "Bring the bow!"

Soon someone handed a double-bow bow, Mu Feng weighed it, but did not say a word.

The black iron tree is the hardest wood in Dongshan. In the past, when Hanshu and the others practiced arrows, they often competed to see who could leave deep arrow marks on it, no matter who was stronger.

Woodwind naturally also tried it.

At that time, he used three bows and only left a deep mark on the bark.

And that bamboo arrow, even the tip and the body of the arrow were shattered.

But now Mufeng only uses two bows, and the situation is very different.

Just listening to the sound of "whoosh", the arrow penetrated directly into the trunk of the tree by an inch, and the arrow body trembled!

"This..." Everyone exclaimed, "Is this the power of copper arrows?"

(End of this chapter)

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