If you want to smelt metal, you have to have a container, and the vessel chosen by the crowd is a large container made of stone, which is very thick and resembles a stone bowl in appearance.

Of course, ordinary stones will definitely not be able to bear this task, just bear the high temperature in the earthen furnace, and then take it out to withstand the ordinary temperature of the outside air will crack instantly, so Zhou Ran chose a building material stone exposed by purple light that he opened from the treasure chest.

This kind of stone is still not as good as the black stone of the black stone in terms of pure sharpness, after all, it is evaluated as the highest grade stone of the primitive era, but in a series of aspects such as pure durability and high temperature resistance, this kind of stone is much better than the black stone, and even better than other stones, which is the reason why Zhou Ran chose him.

It's just that the number of building materials burst out of the purple light is not so much, and these stones add up to only three sides, one side is a cube with a side length of one meter, although it sounds like a lot, but Zhou Ran's current handicraft level is relatively sparse, and a few containers have been carved out to destroy one of the stones, of course, it is also because the thickness of these containers is relatively thick, in order to ensure that its capacity is sufficient, coupled with such an exaggerated thickness, the area required for the outer ring is relatively large.

Comparing the size of the carved container and the earthen furnace, he was barely able to put the container in, after determining this, Zhou Ran breathed a sigh of relief, he was a little on the top when he carved just now, he forgot about this stubble, if he found that the container could not be stuffed into the earthen furnace after carving, it would be troublesome.

He opened the lid of the earthen stove, a special furnace that had to be placed from above to fit the container, and then he clamped the edge of the stone container with two stone clamps and slowly lowered the container.

After making sure that everything was inside, he used a clamp to put two bronze ingots into the stone bowl, these two bronze ingots were calculated by him, although now the two bronze ingots are 1/3 of the outside in the solvent, but if they melt into a liquid state, they will only be able to fill 2/3 of the stone bowl.

After making sure that there was no problem, everyone closed the lid, then took a deep breath, put their hands on the edge of the earthen furnace, and began to pour internal qi into the inside, using the method of internal qi to burn the metal and melt it into a liquid state, which is really a relatively stupid method.

But right now, he doesn't even have the slightest good fuel, and he wants to rely on wood and the like to melt the metal into a liquid state, I'm afraid it's not a dream? Unless he could find a way to develop a blower or something, it would be possible to do this, but the time spent researching that thing was definitely indispensable, and more importantly, with his current level of craftsmanship and the materials in his territory, he couldn't make such a thing.

Since it was the first time to do this kind of behavior of melting a large amount of metal, he could see it with the naked eye when he melted the metal balls before, so Zhou Ran could still understand how long it would take to get it, but now that these bronze ingots were all inside the container, he couldn't see the current situation of the metal at all, so he didn't know when he would be able to stop.

The injection time lasted for a full half an hour, and because it was only injected, the consumption of internal qi was not as much as the cost of direct combat, but even so, while transforming the internal qi characteristics in his body, he quickly restored the internal qi in his body, and then injected the internal qi that had recovered and completed the flame characteristics into the earthen furnace, even after the circulation of the three, he also felt that the internal qi in his body was lacking.

If you continue to persevere, you can barely do it, but the injection feels that there is no need for this, he slowly let go of his hands, and then his face showed a look of surprise, two obvious burnt black handprints appeared in the two places of the earthen oven that he had been pressing, and he actually scorched the earthen oven with the temperature of his internal qi, and it was so obvious to teach.

Zhou Ran stretched out his fingers and gently tapped the charred position, but he didn't expect the black scorch marks to fall off all of a sudden, and before he could react, the handprint that he picked up, the main body of a large piece of earth furnace around it directly collapsed, and a big hole cracked out.

Zhou Ran's expression stiffened suddenly, he didn't expect himself, but he didn't hold back for a while, and casually touched this earthen stove, which caused it to crack out such a serious hole, now don't think about it, this earthen stove must not be able to be used for the second time.

His hand was covered with a layer of internal qi with cold ice characteristics, and he directly grabbed the top lid of the earthen furnace with his bare hands, and then opened it and put it aside, and the scorching gas jumped up directly from the inside of the earthen furnace, and Zhou Ran hurriedly dodged it.

After all, it was the exhaust gas left behind after smelting metal, and although some of it had been dispersed from the hole in the top of the earthen furnace halfway, he was not sure whether the remaining exhaust gas was harmful to the human body, so it was better to avoid it.

Waiting for these exhaust gases to dissipate for about two or three minutes, in this process, Zhou Ran's slap was still attached to the earthen furnace, a direction that did not leave a handprint, and constantly injected scorching internal gas, at this time the amount of internal gas he injected was relatively small, but it could also ensure that the inside of the earthen furnace maintained a relatively high temperature.

Poked his head in and looked at it a little, Zhou Ran showed a happy look on his face, although he blocked most of the sunlight at this angle, resulting in a not very clear vision, but he did see that the stone container contained a large amount of orange-red liquid, without thinking too much, it must be liquid metal.

Zhou Ran used the utensils prepared in advance, and took the stone bowl out of the earthen furnace tremblingly, he was afraid that some land would accidentally fall into the stone bowl in the middle, and put the stone bowl on the ground, Zhou Ran continued to inject internal gas into it to maintain the temperature of the liquid metal, in fact, even if he didn't have to do this, these liquid metals could maintain the temperature for a long time.

Zhou Ran squatted down and studied it carefully, and then nodded with satisfaction, there is no problem with these liquid metals from the appearance, they are indeed exactly the same as normal bronze melted into a liquid state, since this is the case, then try how good the effect is, Zhou Ran took out the mold that had been prepared a long time ago, and then poured all these bronze liquid into it.

This time, Zhou Ran prepared a total of 3 molds, namely the long knife blade, the long sword blade, and the axe blade, after filling all of these, there was not much bronze liquid left in the bowl, Zhou Ran thought about it, and simply poured these into the mold he used to make those precision parts, just used up these liquid bronze.