I really don't want to be a system

Of course, relying on rough animal skins and big leaves to fan the wind, the success rate is debatable, so we still have to find a way to tinker with a simple version of the blower.

Although it is a simple version, it is relatively troublesome to make a blower.

First, two boards of similar length or harder bark are opened with a small opening in the middle, and then the small openings are joined together to form a cross.

Find another thin wooden stick, split the cross, and fix it on the cross plank. After fixing it, tie the front end with straw rope.

Next, make a circular shell with mud, and a small circle needs to be fixed inside the shell to facilitate the rotation of the fixed wooden stick of the cross plank. In addition, a rectangular air outlet needs to be left under the wooden stick when turning Place a piece of wood on it.

After it is done, the simple version of the blower can be turned upside down and placed flat on the ground, and then a detachable and extended version of the interface can be made and installed at the air outlet.

When necessary, arrange someone to rub sticks by the side all the time.

Of course, upgraded versions can also be made.

Fix three pieces of wood above the blower, two vertically and one horizontally.

Then use a small wooden stick tied with a straw rope to pull it back and forth, which will save more effort than rubbing the stick directly with your hands.

After the part of the blower is finished, a round stove can also be built, which is convenient for placing the crucible and better controlling the temperature.

Original·Easy Version·Blower Once you figure out how to do it, charcoal is next.

And charcoal is not a good thing. The best configuration is coal, but coal needs coal mines! !
It is difficult to obtain in the near future, so a certain system leader can only be forced to give up.

Collecting twigs is a simple skill, but the hard part is burning the twigs into charcoal.

Burning charcoal is also a technical job, and it needs to be isolated from the air in time, otherwise it will become ashes.

Not only that, the kiln used to burn charcoal is also different from the one used to burn pottery.

It is necessary to build a special kiln. It is best to build a charcoal kiln in a natural step shape, that is, to use clay to build a kiln with a small opening on the top and a tuyere on the bottom.

The upper mouth is close to the upper level of the natural steps.Prepare enough sand on the upper steps for sealing.The steps below are also prepared with sand to seal the air vents.

Break off the dry branches, put them into the kiln, fill it half full, and ignite it from the lower outlet, and white smoke will come out from the upper outlet, which is water vapor.When the white smoke stops, seal the upper and lower openings with sand.

The branches are heated inside to turn them into charcoal.After a few days or even longer, the kiln is disassembled after cooling.

(Be careful, there is carbon monoxide in it, so hold your breath and take turns to prevent poisoning.)
You can use a branch to open the kiln, wait for a period of time for the carbon monoxide to dissipate, and then disassemble the charcoal kiln. The inside is charcoal, and then smash it into small pieces with stones.

The refining method of bronze is:
1. Process the copper ore and tin ore first, put them in the stove and burn them with charcoal. In addition, the temperature needs to be raised as much as possible.

Then copper nuggets will come out of the copper furnace, and tin nuggets will come out of the tin furnace.Push it down, and you can get it by dismantling the stove.

(Note: After the first experimental operation of the furnace, it should be reused as much as possible to avoid wasting manpower and material resources.

For example, tools that can withstand high temperatures have been created to pull the needed things out of the stove. )
2. Treating tin, tin is easy to purify because of its low melting point.

Put tin in a clay pot/crucible, heat it on the stove, and the tin will melt into tin liquid in a short time, which can be poured, and the mold can be made of pottery.

(Note: It is necessary to make an additional pot/crucible with an outlet at the bottom that can be partially swayed.

After the tin has melted, the clay pot/crucible is tipped over with a wooden stick and the tin liquid will flow out. )
But this thing is the same as pure copper, the poured thing is rough and soft, so it can't be used for much.

3. To deal with copper, copper has a high melting point, so it is much more difficult to melt.

Although the temperature inside the copper smelting furnace is high enough to melt copper into a liquid, the temperature at the furnace mouth is much lower than this temperature, even lower than the melting point of bronze.

So if you want to deal with copper well, you need a bigger furnace in which you can put the tilting clay pot into it and burn it.

The temperature at the furnace mouth is not enough.In order to increase the furnace temperature, a blast is also required.

Then put a clay pot with a clay outlet into the middle of the furnace. It can be kept high with an earthen platform. The outlet should be long enough to extend out of the furnace.

Put the rough copper block in front, ignite the fire, and the copper will flow out after melting and enter the placed mold.

When this thing first came out, it was the same as tin, and the cast was rough and soft.

4. Fusion of copper and tin into bronze.

Use the copper melting equipment above to do the process again, and what is put in is purified copper and purified tin.

What flows out this time is quite pure bronze liquid, which can be used for casting.Time is required for the tin and copper to mix thoroughly before tipping the crucible.

In addition to the crucible, blower and charcoal, there is another important thing, that is the mold (fan).

There are two methods of making molds:

[-]. Fan casting method.Also known as the block model method, the production process is roughly divided into four steps: model making, model making, pouring and trimming.

For example, to make an ax, hammer, and saw, the ax, hammer, and saw should be made out of mud according to the normal proportions.

After kneading, put them in the fire and burn them into shapes. After they are finished, knead them with soil to make fan.

After you have the fan, you can pour the dissolved metal into the fan, and that's it.

Second, the lost wax method.Refers to the wax mold of objects to be cast made of easily meltable materials, such as yellow wax (beeswax) and animal oil (butter).

Then pour the fine mud on the surface of the wax model to form a layer of mud shell on the surface of the wax model, and then coat the refractory material on the surface of the mud shell.

Harden it to make a mold, and finally bake the mold to melt the wax oil and form a cavity.

Then pour copper liquid into the cavity, and after solidification and cooling, there will be no traces. The smooth and precise casting lost wax method is a method of investment casting bronzes.

Since there is no beeswax now, Chao Chen directly passed the second option.

Once you've done some serious research (strike out) to understand the crucible and the blower, the making of the mold and the handling of the charcoal and how to forge the bronze, the next thing is much easier.

In general, just, do it!
The production sequence is charcoal-blower-crucible-mold.

Before making charcoal, a stove needs to be set up. Chao Chen called the head of the pottery department, Duoyan, and told him the specific needs and quantity.

So he let Cyclops do it, and Chen Chao started to fiddle with two blowers and two crucibles, one for copper smelting and the other for tin smelting.