The preparations for ironmaking were in a hurry, so Jun Qianqian drew a flow chart on paper and pasted it on the big tree next to the clearing.

"The cave is too big, and this time we may need to build a single blast furnace."

Iron sand and charcoal had to be reacted in pottery barrels, and they opened a kiln to fire some molds, but Jun Qianqian calculated that if he used the kiln to make iron directly, it would be too wasteful of firewood.

"Then build an iron-making house in the tribe."

Luo Ze took her small notebook, which was full of things needed for the ironmaking process, and the round appearance of the blast furnace was not difficult to make.

"Build a blacksmith shop?"

Jun Qianqian nodded thoughtfully, iron striking does need a special site, which is also good for the tribe's fire prevention.

It's just that there is no blacksmith in this blacksmith shop!

This kind of work, don't embarrass Jun Qianqian.

"What does that blacksmith you mean by that?"

Daze brought back a basket of iron sand from the lake, and the inside of the wicker basket was padded with leaves, so that no precious raw material was missed.

"Of course, the blacksmith is the one who strikes iron, and the iron that is not cooled is soft, and it can be hammered into a specific shape with a hammer."

Jun Qianqian explained.

The weapon she wants to make the most is the bow and arrow, which is the earliest long-range attack method, with the bow and arrow, not only has a great advantage in defending against the enemy, but also will become much more convenient for hunting in the future.

But the arrow of the arrow, if made by the way of casting mold, the consumption of the pottery mold is very large, and the mold of the most iron-saving pyramidal arrow is disposable, and it must be broken to take out the arrow, so the efficiency is too low.

But directly cast arrows, and no one in the tribe will.

"Here's the shape of the arrow."

Luo Ze saw that his eldest brother was interested, so he handed over the drawings.

"This thing, is the arrow that Qianqian said?"

Daze looked at Jun Qianqian's work notes curiously, not only did he draw the way to make bows and arrows, but he also saw a *** when he turned the page back.

"That's right, long-range projectile weapons! Invincible! ”

Jun Qianqian sells herself and boasts.

"Then this thing is made and put on the watchtower, wouldn't it be to kill one by one!"

Daze slapped the drawings of ***, looking fanatical.

"Well, this is a lot more complicated than a bow and arrow."

To put it bluntly, a crossbow is a bow and arrow that is delayed in firing, but it involves the production of machine expansion and crossbow machine, and has high requirements for forging and carpentry.

Jun Qianqian just drew it casually to play, with their current production process, even the arrows can't be mass-produced, so don't be delusional.

"Let me try! It doesn't matter if you forge an arrow, or you can make this crossbow! ”

Dazer is very interested in blacksmithing.

"Then what's not to try, just try it!"

Daze borrowed Jun Qianqian's drawings, and in the days of preparation, there was one more person in their family who read at night.

When the blast furnace is set up, other preparations are basically in the end.

"Tomorrow, bring back the bellows that Sister Pello helped make, and all the devices will be complete."

Looking at the inverted bell-shaped blast furnace, Jun Qianqian clapped her hands with satisfaction.

"Will smelting fail?"

Luo Ze remembered that when she first burned pottery, she was still depressed for a while.

"No, as long as the temperature is enough, ironmaking can be successful, there is no difference in heat."

The temperature is not enough, the bellows come to make up, and the bellows sewn by Perlo from old leather is very strong, so it's a big deal to find a few more people to blow the wind together, absolutely no problem.

"That's good."

Seeing her confident appearance, Luo Ze was also a lot relieved.

Early the next morning, as if some kind of ceremony was being held, the tribesmen gathered in a circle and waited for the blast furnace to be lit.

Wearing a patchwork of leather armor, which was neither beautiful nor convenient, but could prevent burns, Luo Ze set the clay bucket on the fire and added the fully mixed carbon iron sand to the clay bucket.

After the flames were burned, the boys took turns agitating the bellows, and the fewer the flames, the more vigorous, but everyone was so tired that their expressions were hideous, and they were panting like oxen.

The work of iron-making takes at least nearly ten hours.

"It's really not easy!"

The runner of the firewood broke his legs, and the wind-blowing tired hands broke his hands, but the iron was finally refined!

"Be careful, the molten iron is hot!"

Luo Ze took the clamp made of wood and took the clay bucket out of the blast furnace, and Jun Qianqian was beside him, watching the clip burn.

"Yikes!"

The tribesmen all exclaimed.

"It's okay."

Luo Ze's face was not red and his heart was not beating, he let the wooden stick burn, and before the flames burned to his body, he had already poured the fiery red molten iron into the prepared mold one by one.

Hands didn't shake a bit.

The first pot of molten iron took the lead in creating a hammer and an iron axe, and the molds of these two basic tools are also very easy to make, just pinch a square.

"Can you start forging now?"

Daze waited eagerly beside him, and the stone hammer in his hand carried an unbearable illusion.

"Please, please, strike while the iron is hot!"

Jun Qianqian didn't expect Daze to be so motivated, and it was best if he was willing to try.

And Daze is also a person who has done a lot of homework!

I saw him pour a slightly plastic piece of iron on the stone slab, and quickly hit the tip of the axe with a stone hammer, and soon the rudiments of the blade came out.

"Does the eldest brother like striking iron so much?"

Everyone looked at Daze, his arms were full of tigers, and the stone hammers were falling down with a bang.

However, only the steps of forging and hammering are far from enough.

"For pig iron to be durable, it also needs to be quenched and tempered."

When the axe was almost made, Jun Qianqian asked Daze to throw it into the water, and the iron that cooled down quickly would become very hard, but at the same time it would increase brittleness and break easily.

But as long as the axe that has passed through the water is put on the fire to burn red, and then put it in the air to cool naturally, the tempering is complete.

"The good axe has to be burned around, it's so troublesome."

The people who watched the excitement were tired after standing all day.

"It's not troublesome when it's made, but it's fancy when it's used."

Jun Qianqian knew that she would explain forging to everyone, and it was estimated that no one would understand, so she simply picked up a semi-finished hammer that had been quenched, but had not yet been tempered, and fell the stone!

"Click,"

The heavy piece of iron suddenly split in half.

"See, don't return fire, that's the end!"

Jun Qianqian, who was possessed by the drama spirit, pointed to the broken iron on the ground, looking gloating.

And the tribesmen did not believe in evil, and they took up the axe that had returned to the fire, and threw it on the stone, and everyone's strength was much greater than her, and they saw that the piece of iron was constantly being bounced away, and only a few marks were left.

Disappointing!

Daze looked at the axe with honor, and his eyes were no different from looking at his son.

"Seeing is believing, let's be convinced!"