After the second batch of knives and axes were made, Xu Chen still conducted high-strength verification and found that after increasing the proportion of tin, the hardness of the alloy was much higher.

In other words, tin with a ratio of more than 20% will make the alloy harder, sharper and wear-resistant, and it is almost comparable to the quality of the knife and axe he often used in rural areas before traveling through time, which made him overjoyed.

Therefore, he did not intend to continue to torment more proportions and formulas, and decided to temporarily control the bronze smelting ratio within the current proportion range.

However, the smelted alloy is currently mixed with lead, so it is no problem to cut trees and make tools, but if it is used for a long time to slaughter wild animals and handle food, it will definitely be harmful to the body.

Xu Chen decided to continue his efforts and start smelting the third furnace of bronze.

And this time, he decided not to add lead to try.

I have tried simple copper-lead alloys before, and the hardness is pretty good, but they are brittle and hard and easy to break.

He believed that the properties of the alloys smelted by copper and tin materials would not be too bad. After all, in the two consecutive furnace tests, the content of lead was only 23% and this content was probably no less than impurities in the current metal smelting.

He believed that the so-called pure copper smelted by the Wu tribe would also contain a lot of other metals. Strictly speaking, the bronze ware at present is actually a hodgepodge, with less than a dozen messy elements.

Fifty kilograms of copper ingots and fifteen kilograms of tin were added to the smelting furnace and started to smelting.

Xu Chen started to make clay molds.

This time he did not make the molds of large knives and axes. They were all daggers, bone-cleaning knives and kitchen knives, and also made a few chisels.

These knives are not too heavy, just half a pound per pound, so there are a lot of them and the molds are very complicated to make.

The little witch does nothing all day long. In addition to meditating and studying at home and helping to organize some of Xu Chen’s daily records, she also stays in the kiln factory most of the time. She is very interested in making molds with Xu Chen. Ye will come to join in the fun while busy working.

It’s not tiring to work with men and women.

Three young men and women gathered together, chatting and working easily, and occasionally having a few fights. However, most of the time, Xu Chen was doing work while telling the people in the smelting workshop some fun things and experiences that they encountered when they went out last time. Occasionally, he also told some myths at the begging of the little witch and Ye, such as the old mother repairing the sky, Jingwei filling the sea, Kuafu chasing the sun, Houyi shooting the sun and other familiar topics in later generations. Of course, there are also many messy online fantasy and mythological novels.

Under these bizarre and tempting stories, men, women, women, young and old would run to the kiln factory even if they had nothing to do, and often surrounded the smelting workshop, which led to laughter and laughter from the kiln factory all day long.

After a few days of work, the third furnace of bronze was poured.

This time, the knives used for daily life were all used, and there were fifty or sixty.

Facing these golden knives, the faces of men, women, young and old were filled with happy and excited smiles.

The quality of these alloys without lead was not disappointed Xu Chen.

After polishing these knives, the sharpness is no less than that of the second batch of swords and axes, and the toughness is also very good, completely achieving the effect Xu Chen expected.

For him, the success of the third test is very important because the lead-free bronze is also strong and durable. Then, when making knives and utensils in daily life, you will be more at ease. You can even use bronze cast copper pots to stir-fry and stew, and you will no longer worry about lead poisoning.

At least copper and tin are non-toxic.

The third batch of lead-free knives has a large number, and it takes a long time to install the handle. And when these knives are put into use, the daily life of the entire tribe is enough. So Xu Chen paused the heating of the smelting furnace and led a group of smelting workers and several carpenters to do their best to start the installation and polishing of the knives.

Axe, Hat, Kidney, Bones, and other tool knives are placed in the kitchen and tool room for use, and are not fixed.

But the daggers are distributed according to the hunter level.

A group of general-level clan members such as Gu, Ju, Mo, Ju, and Zhu received the assigned daggers as soon as possible. For safety, Xu Chen also instructed them to make simple animal skin scabbards and wear them on their bodies.

These daggers are standard self-defense weapons distributed. They are private items like bow and arrow leather armor and belong to you. They need to be properly collected and maintained on weekdays. If you lose them, you need to hunt enough beasts to get a second one.

The second batch was distributed with a group of core hunters, mainly for hunting, fishing and daily training.

The third batch is ordinary men.

As these three batches of knives were gradually put into use, the tribe's production and life underwent earth-shaking changes.

Almost all traditional stone sword, stone axe, bone tooth daggers are discarded.

The axe and hatchet cut wood is extremely sharp, which makes the kiln factory burn charcoal and chop wood more than ten times faster, and a large amount of trees and wood are transported back every day.

Kitchen Knife and dagger also make killing wild animals and handling food more convenient and quicker.

All the tribesmen regard these sharp bronze knives as treasures. They can see men carefully wiping and polishing them all the time, even when they sleep, they put them on the pillow and are reluctant to leave them too far.

At the end of January, we set out to the Yu Gong tribe and Gong Huo tribe to bring people back.

When we went there, the bamboo rafts were filled with pottery and linen, but when we returned, the goods were shipped much less. In addition to a few leather bags of salt, there were some animal skins, gold and gems, and more than 300 kilograms of lead and tin.

More than a dozen rafts and bamboo rafts docked at the Hewan Pier.

However, when Feng and a group of returning hunters looked at the daggers with similar hilts hanging on the waist of the hunters who were greeting the goods, they all asked.

When these hunters who stayed at home proudly pulled out golden daggers and gestured and easily cut off the branches and hemp ropes to show off, a group of hunters with dust on their faces went crazy, and they didn't care about the bamboo steaks and didn't want the goods. They turned over and went straight to the valley.

I haven't been at home for more than ten days, but I didn't expect that the tribe would have such a powerful and sharp treasure.

They are busy outside, eating and sleeping hard, and are in the air and rain, risking the harassment of various beasts, and they just need such a sharp weapon.

More than a dozen horses used to carry goods were ridden and ran away, so a group of greetings could only carry the vine basket and the basket on their backs.

After getting used to riding horses and carrying goods, it takes half a day to travel to the courtyard and the river beach. In the eyes of all men, walking is completely unbearable, and only riding a horse can live.

It seems that it is necessary to catch a few more groups of wild horses, at least one person must be in possession.

Unfortunately, there are no large wild horses nearby.

However… there seem to be many on the opposite river beach.

So a group of men carrying goods walked back slowly, and at the same time they looked back at the vast and wild river beach on the other side of the Wulong River. Since a large night wolf family was killed and driven away, more and more wild animals were more and more than ten miles away from the river beach. It seemed that even a group of wild horses that escaped from the ascension near the mouth of the Wu tribe were frightened to cross the river to the opposite side.

It seems that Chen will be better off going to the opposite side of the river to organize a large-scale horse catching operation.

There is no life without a horse, and there is no way to live.

I haven't walked home with my legs like this for a long time.

Before a group of people could enter the valley entrance, Feng and more than a dozen people had already rushed to the gate of the courtyard at lightning. They lost the reins of the horse and jumped off the horse's back, shouted and headed straight for Xu Chen's room.

Xu Chen was drawing a picture on a ceramic board in the room.

Suddenly, he was shocked by a group of disheveled guys who rushed in, and threw away the charcoal strips in his hand and stood up nervously and asked, "What happened?"

Feng jumped in front of Xu Chen, grabbed Xu Chen's arm and shouted excitedly: "Dagger, we want daggers too!"

"It's ok, it's ok, everyone else has it, we want ok too!"

A large group of people crowded inside and outside the room and shouted.

Xu Chen breathed a sigh of relief in an instant, knocked down the furry giant claws like a bear's paw and said angrily: "I'm so anxious, I'll definitely not lose you!"

The group of people was overjoyed, and Feng immediately smiled flatteringly and nodded quickly and said, "Where are you? Get it!"

Xu Chen twitched and said, "No hurry, there is nothing now!"

Feng and others immediately felt like they were poured with a basin of cold water. The excitement on their faces disappeared without a trace, and their emotions suddenly became depressed.

Thinking of the busyness of the wind and the rain, I was indeed a little hurt, so Xu Chen comforted him and said:

"It's not that you don't do it for you, but that you often go out and need better weapons. I'm still designing it. After the design is done, I will ensure that it's better than others."

"Really?" Feng and others were instantly excited and filled with surprise.

"When did I cheat you, look..."

Xu Chen pointed to the stone slab on the table.

Feng and others quickly came up to watch, and saw seven or eight pottery boards, each with different weapons such as swords, guns, swords, halberds, axes, hooks and forks.

However, they didn't recognize these weapons, so they looked confused and didn't realize it.

"These weapons are more complicated than daggers, knives and axes, and they are more troublesome to make. You need to carefully design the right mold before you can start processing. Don't worry, just come back and have a good rest for a few days. After I design and make the mold, I will definitely satisfy you."

"Okay, okay, then we'll wait!"

Feng knew that Xu Chen would never lie to them, so he stopped making noise and left the room with anticipation. Soon, all kinds of shouting and making noise came from outside.

Because they found a few tool people busy in the yard, holding gold hatches and axes, as if they had discovered a new world, they rushed up to compete and went straight outside the yard.
Chapter completed!