I Am a Chief in a Primitive Tribe

Twenty days later, the weather is getting hotter.

The pottery pot specially made by Lihu for smelting was finally completed, and he went to find Mu Feng excitedly.

He was overjoyed when he learned that Mu Feng had burned in the pottery pot, and decisively began to smelt copper.

The main material for smelting copper is copper. He now has two choices, one is to directly use the pure copper ore originally obtained from Xiongda, and the other is to smelt copper from copper ore himself.

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

In this case, he saves one process, and only needs to smelt tin and lead ore.

The tin ore is relatively simple to handle. The tin ore is crushed into small particles, burned in a fire, and the tin flows out. There are magazines floating on the surface and the metal part at the bottom.

The next step is purification, which is to re-smelt the tin with impurities and repeatedly extract the metal part, and finally high-purity tin can be obtained.

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

Mu Feng personally demonstrated it again, and after clarifying the main points to Lihu and the others, he switched to lead smelting.

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

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

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

After two processes, he also got the crude lead smoothly.

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

Repeated purification like this took another five days before and after.

Mu Feng could not help sighing: "No wonder smelting metals took so long in the course of history. The conditions are simple and the craftsmanship is also a big problem! If I didn't have a system like the sky, I would only be afraid of any link. It's possible to explode and kill people!"

At the moment, he has three kinds of metals with the highest purity that he can currently obtain, and the next step is to smelt in one furnace.

Pure copper has the highest melting point, but its hardness is insufficient. It needs to add a certain amount of lead and tin to become tough and hard.

Here is a question of ratio.

In Mu Feng's previous life, he studied bronze ware. I remember that the ratio of bronze ware made in ancient times was probably floating in the range of "six to one", such as:

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

The ratio of copper to tin in Axe Qi 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 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 thought about the weapons he wanted to make, including arrows, knives, and spear heads. There were also three types of ratios involved, which were five to two, three to one, and four to one.

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

Because it was the first time to try the three-gold mixing, Mu Feng didn't dare to refine too much at once, for fear of wasting the metal that was finally refined.

As for weighing the proportioning weight, he can't be troubled without a scale.

He took two animal skins, wore them with leather straps, and found a stick tied with a rope and hung up in the middle to make a balance. On one side, he put a large stone as a weight, and then weighed out one portion in turn. Metals of roughly equal weight are then proportioned from one portion of the metal.

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

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

At this time, the purified metal is not easy to be divided, so it is impossible to crush the three metals for smelting, and the process naturally slows down.

This process can be regarded as the most dangerous and troublesome process so far.

Because these three metals must be manually stirred after they are melted in order to be better mixed together.

But the problem is that the high temperature of several hundred degrees, wood, bones, etc. can not be stirred, either it catches fire or smokes into ashes, and it can't be stirred.

This is so anxious that Mu Feng, he thought about it and suddenly thought of a black metal stick that he had captured before defeating the Mang Dragon Ministry, and his eyes lit up: "The thing was cold at first, and it didn't even show a mark on the stone. Yes, it should be possible!"

So he hurried back to the earth building and took the stick, which he didn't know what kind of metal, and guarded the melting of the "three golds" in the big pottery pot.

Except for the three people responsible for burning the furnace, everyone else was pushed far away by Mu Feng.

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, waiting for Mu Feng to stir the solution, and then poured the mold.

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

The sound of "chihhhhhhhhhhhhh" kept on sounding, and Mu Feng's heart was also very disturbed. He lifted the stick subconsciously and found that the black stick was safe and sound.

"It's useful!" Mu Feng was overjoyed, and immediately came up with energy, and hurriedly stirred while his hands weren't hot now.

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

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

After repeating this several times, he stirred for no less than five minutes. He couldn't stand the temperature, and it was almost the same, so he stopped.

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

Arrows, knives, axes, spear heads...

At this time, Mu Feng didn't care about any disproportionate proportions. He poured the molds one by one in excitement, and then stopped.

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

All the people watching from afar came forward, watching the solidified copperware in the mold, and each excitedly asked, "Are you ready?"

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

So it's another long wait...

After more than an hour, Mu Feng estimated that these copperware had already formed, so he took a clay pot of water, carefully removed the copperware from the clay mold, and put it in the water to cool down.

With a sound of "chi", the surface of the water rose with steam, and everyone was frightened.

Mu Feng cooled the copperware one by one. Then he picked up an arrow, looked at it, and squeezed it in his hand, then put the hard rattan prepared in advance on the arrow, holding the arrow on a stone in front of everyone. It's grind up.

In order to be quick, he only sharpened the tip of the arrow, and it took a long time.

Just when everyone was waiting anxiously, he finally put away the arrow, wiped his sweat, no matter his forehead and face were stained with dust, he shouted excitedly: "Bring the bow!"

Soon someone handed a two-piece bow, Mu Feng squeezed it, didn't say a word, set up an arrow, and shot it at a hard black iron tree in the distance.

The black iron tree is the hardest wood in Dongshan. In the past, when Hanshu and the others were practicing their arrows, they often competed who could leave deep arrow marks on it, even if they had more strength.

Mufeng naturally tried it too.

At that time, he used a three-piece bow, which only left a deep mark on the bark.

But the bamboo arrow was shattered even with its tip and body.

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

Hearing a "swish" sound, the arrow directly penetrated into the trunk of the tree, and the body of the arrow trembled!

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

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