Of course, the freshly made mud embryos cannot be burned directly. After they are made, they are placed there to dry.

In this process, Han Cheng and Heiwa used yellow clay and pottery clay to re-build the stove.

The scale is similar to the previous one.

After the base is set, let it dry for a day, and then light the fire inside, so that it dries quickly.

The special pottery jar used for smelting copper was also roasted by the fire to speed up its process, otherwise it would take too long to dry naturally.

After eight days, the two newly manufactured things were finally ready.

After putting the pottery jar on the stove and connecting the two, the copper smelting industry of the Qingque tribe began again.

Han Cheng stepped on the steps built with stone, stopped when his waist was level with the mouth of the stove, tilted the jar he was holding in his arms, and slowly poured the mineral powder contained in it into the jar.

This time I put a lot of them, and I filled them with six jars before stopping.

There is no need to worry that the ore powder will flow out from the hole left below, because before doing this, the pottery plate has been used to block it from the inside.

After the powdered ore was poured, the flames began to burn, and the wind whispered around. The hot temperature gathered here, through the bottom of the pottery jar, transferring heat to the inside, influencing the powdered ore.

This process was a bit long, and after a long time, the ore powder inside finally slowly began to melt.

As for all melting, it was a long time later.

Han Cheng climbed the steps again, tilted his head back, and looked at the hot liquid inside.

With the very high temperature of the gas, it is transpiring upward, which is a bit unbearable.

"Get out of the way!"

After Han Cheng took a look, he turned his head and shouted to the person nearby.

The Heiwa who burned the fire, the Wu and others who were watching around there, they all moved away from here.

Staring at the stove and Han Cheng with tension and expectation, waiting for Han Cheng's actions.

Han Cheng, who was strapped with a light board'leather apron', and with light board leather sleeves and gloves on his hands and arms, turned his head and saw that everyone had left, so he held the pottery board a lot higher than the inner wall of the pot with both hands. Pull it up, then push it to the side, and immediately there will be **** with very high temperature flowing out of this hole slowly.

The extremely hot **** fell on the ground, making a chuckle and arousing a white smoke.

Han Cheng didn't let anyone pick up the **** in a clay pot.

After waiting, he was going to lead people to build a relatively sloping **** here. When the **** accumulated more and more, he let them roll down the **** to the bottom of the gang bag.

There is not only copper in copper ore, but other metals, such as gold and silver, generally contain some.

However, Han Cheng still abandoned the **** without any hesitation. It can be said that he really regarded gold and silver as dung.

This sentence seems inaccurate. In Han Cheng's eyes, these slags containing gold and silver are not as important as dung.

The reason why he was able to do this free and easy was that he had no ability to separate the **** again and get the gold and silver inside.

The second reason is that the value of gold and silver is given to it by humans. At this time, gold and silver can't serve as equivalents, nor can they become the eyes of the devil.

You take a large piece of pure gold to exchange food with other tribes. After the people who own the food take the gold that cannot be eaten or used for inspection, and then angrily throw it back to you, things will happen in all likelihood.

The **** does not flow very smoothly, which is related to the fact that there are more impurities and more viscous inside.

It seems that this boiler needs further modification.

The opening for excretion should be changed from a flat opening to an oblique opening, so that the drainage can become much smoother.

It took a while before the **** was finally drained.

Han Cheng asked the master to get a pre-prepared earthenware pot and put it under the opening for the pottery juice, and then unplugged another pottery plate that was blocking the opening. The molten metal with extremely high temperature began to slowly flow out and fall into In the clay pot below...

The hot temperature gradually dropped, and most of the copper liquid in the clay pot also cooled and solidified.

The clay pot was smashed, revealing a half-pot-shaped purple copper ingot.

Looking at the large piece of copper ingots, Han Cheng, Wu, Senior Brother and other people who were worried about this matter couldn't help but smile.

Wu, a pious old **** stick, based on the principle of giving all glory to the gods, he began to praise the gods on the spot, who had never paid attention to him.

Han Cheng looked rather helpless, these things were made by himself and others a little bit of hard work, what does it have to do with the gods?

He thought so in his heart, but Han Cheng didn't say it. After all, he was still wearing the magnificent cloak of God Son, and he was the biggest beneficiary.

After seeing the copper ingots, Han Cheng used a stick to poke the **** that became a lump.

After turning it over with a stick, it was discovered that there was still a lot of solidified copper at the bottom of the slag.

No wonder the copper ingots refined this time are so good, it turns out that even the copper liquid has been released a lot.

It seems that the ore powder has been put a little too much this time, and I will put a little less next time.

Thinking of this, Han Cheng immediately called for a stone, and weighed the copper ingots refined this time.

After weighing, a record was made of how much ore powder was put in this time and the number of copper ingots obtained.

In this way, when you get it next time, you will have a reference.

It is impossible not to waste any copper liquid, but it can waste less than this time.

Of course, depending on the quality of the ore, the ratio of copper content and **** will also be different, and we cannot generalize.

These detailed things ~lightnovelpub.net~ need to be practiced again and again, accumulating the original data again and again, and then summarized.

The theory is obtained from practice, and then practice is used to verify the theory for improvement. After the two are mutually confirmed, we can always find a similar standard slowly.

Touching this copper ingot, the elder brother Wu and others talked a lot. Wu said that he needed to dedicate it to the gods and thank the gods for their blessings to the tribe.

The big brother said to make a copper shield, so that when facing the prey and the enemy, he can become more brave. The stone said that it is better to make some bronze pens so that they can be better on the pottery plate. Lettering.

Han Cheng listened and laughed without saying a word. On the one hand, he was happy that everyone was in this state and that there was copper in the tribe.

On the other hand, it’s because the many wishes people have said could not be realized without getting tin or lead to get the bronze out...

In the courtyard, Bai Xuemei, who was carrying a bamboo basket to feed the silkworms in the dustpan to the mulberry leaves, suddenly frowned, pressed her abdomen with one hand, and her face looked painful...