He wants to make a mold with beeswax.

He first made an axe with half-dry mud.

Then fix the axe in a mud container and inject melted wax into the gap.

After the wax solidifies, carves it and cuts it in half. This is the wax mold of the axe.

Then apply mud on the wax mold and put it in the fire. The wax in the mud melts at high temperature and flows out from the reserved holes. The remaining dry mud with cavity is the mold of the axe mold.

This is the lost wax mold making method.

Bronze is smelted below.

If there is coal, copper and tin, bronze is not a problem.

In the tribe, a large shed was built with bamboo, and piled up piles of coal, copper ore, and tin ore.

The moment to create the world is coming!

The dozen people left in the tribe followed Ye Qing's arrangement.

Broken ore, start the furnace.

Red copper ore, simple smelting.

After the coal fire ignited the furnace temperature and rose, Ye Qing put a clay pot into the furnace.

The clay pot contains mixed red copper powder and charcoal powder.

charcoal?

He had already made it.

There were dozens of people outside the tribe, and there were still several mud buns that were still emitting smoke from the gaps, just burning charcoal.

In order to increase the temperature, Ye Qing also used three palm-leaf fans to make a simple blower.

Therefore, the temperature of the fire is high enough.

The pottery in the stove slowly turns red, and the powder inside begins to melt. The Ye Qing stirs from time to time, stirring up flames, and then skimming off the scum on the surface.

It felt almost done. Ye Qing brought out a red pot and poured the melted copper liquid into the prepared mold.

This mold is another mold, similar to an ice grid, which is used to divide copper and tin blocks as standard as possible. After the copper liquid is cooled, copper blocks are obtained, just like ice cubes made from refrigerators at home.

This is to facilitate the adjustment of the ratio when refining bronze.

Otherwise, how can a whole piece of copper be divided and flexibly adjusted the copper-tin ratio and portion?

Looking at the golden copper blocks, Ye Qing was excited.

The tribe members involved in the copper smelting were also very surprised.

What they were surprised was that the stone could turn into water by burning it with fire, and after cooling, it turned into another thing completely.

What is that?

It's golden, shiny, so beautiful!

After the copper is refined, the tin is even more troublesome.

The smelting of tin is simpler. The melting point of tin is very low, and the firewood pile can tin be refined. Therefore, the tin ore powder melts very quickly, and it is much faster to obtain tin blocks compared to copper blocks.

The silver tin block naturally aroused praise from the tribe members.
Chapter completed!