Today is expected to be 6 more, this is the 5th watch, there is no gas at home, and I don't know if the 6 watch can be completed after some delay.

………

While Wang Tian was thinking about these archaeological questions, the pure copper in the tong pot had begun to turn red all over, and the color was somewhat like a salted duck egg with a red heart.

Seeing this change, Wang Tianla suddenly sped up a lot of degrees, and then added charcoal until the flames turned pure blue.

Wang Tian knew that the melting point of pure copper was less than 11oo degrees, and it seemed that it was almost reaching the critical point, so he tried to mix it with a stirring spoon made of graphite, and now he still felt like he was touching a stone.

This proved that the temperature was not enough, and after trying to pull the bellows for a while, the liquid in the pot had all turned into a dazzling orange red, and the spoon was swallowed up after stirring again.

This is a successful appearance, Wang Tian has a little residue at this time, he tried to add a little charcoal powder to reduce, this time after stirring to dilute more residue.

It seems that there is no 100% monomer copper in nature, and it can be seen from the residue that has been fished out that this purity is already very good, and if it is not used for decoration, it should be negligible.

Because there are basically no impurities on the residue fished out, all of them are covered with a layer of yellow copper water, as if electroplated.

But as the material of these decorations, Wang Tian does not feel that it is a waste, anyway, these residues can also be recycled.

It wasn't until the spoon used for stirring stopped being jerky when it touched the copper water that Wang Tiancai stopped salvaging the residue, and then he had to prepare for the furnace.

The material of this small pot, Wang Tian has no problem operating it alone, so Wang Tian does not plan to ask for help, except for the ring, the other 4 pieces of jewelry are divided into several molds for casting.

In order to be able to create 100% metal ornaments, the earring pendant and the step shake are divided into three parts, of which the small copper ring used to connect is universal, and in order to increase the cooling time, it is this small copper ring that is first instilled.

Then there are two pendants, and the pins of the earrings (Xiaoyu is a man, I don't know if this is accurate, everyone makes do with it) and the metal hairpins that are shaking.

After pouring these four pieces, start to make the ring, after getting it, the first small copper ring should be able to open the mold, Wang Tian poured the finished product on the ground, took a closer look, the mold line is still very obvious.

There is no way to do this, the workpiece is too small, and this situation cannot be avoided at all, and it can only be processed by grinding and polishing in the later stage.

Rearrange the mold, pour again, because two small copper rings can be produced at a time, so a total of five times, so that 1o small copper rings for connecting decorations are obtained, in the actual installation and use, each decoration is used up to two, so that there is one more for pre-loss, if there is no loss, they can be added to the step.

The decoration materials have been poured into the pot, Wang Tianxian still has a little copper water, so he re-added some charcoal to the fire pit to maintain the temperature in the tongs, and then he used ready-made clay to make a few scalpel-shaped knife molds.

Pure copper is not easy to rust, and the remaining little copper water is used to cast a few scalpels, because it is a mold made in a hurry, Wang Tian only ensures the smoothness of the arc of the blade.

As for the back of the knife and the position of the wooden handle, I don't pay attention to it, and I feel like I can see it, and I am ready to pour it.

After all the work was completed, Wang Tianxian himself was sweating, and it seemed that he was still a little nervous in the first production, otherwise the temperature of the flame would not be enough to wet his back.

At this time, he showed up that he had originally said that he had made a trial bronze, but now the first pot that came out turned out to be just pure copper, which seemed to be a bit unworthy of the name.

At this time, it was not the time to dwell on this problem, Wang Tian took out the copper slag and threw it into the tong pot again, dissolved it with the remaining little copper water into a small copper ingot, and then added a handful of charcoal powder again.

He decided to try the purification process and see if he could improve it, but the edge of the graphite spoon in his hand was too thick and the solution in the tong pot was too small.

Unable to get rid of the impurities that had been cleared out of the charcoal, I had to find a useless pottery bowl and pour copper water into it, which cooled and turned into a copper ingot.

In this way, there will be no waste, and these copper ingots that are not made into products can be used as pure copper again when they are forged next time.

When the copper ingots in the pottery bowl turned into the original color of the metal, Wang Tian scooped a scoop of cold water and poured it in, and after a mist steamed, it was considered to have completed the quenching test of the bronze ware.

Wang Tian is completely unfamiliar with these processes, so he wants to see what is the difference between copper after quenching and products without quenching.

When Wang Tian visited the museum before, he saw the introduction of those complicated technological processes, and he was confused at that time, so he can't remember it at all now.

He only remembered that by the time of the late Shang Dynasty, the pottery casting production process of Yinxu bronzes had been basically standardized, that is to say, a certain standard process had been formed.

The ancients used pottery fan, and Wang Tian directly used the model made of graphite materials, of course, his decorations, because of temporary reasons, the model materials used are not only ordinary clay, but also has not been dried clay, he has begun to have a little worry about the quality of the ornament casting.

As far as Wang Tian knows, pure copper and bronze alloys can also be forged, and in addition to the need for forging, another point is to separate the impurities through continuous beating.

China has a steelmaking production process in the spring and autumn period, and the initial steel is sponge iron, steelmaking, sponge iron into the furnace, let it carburize in the heat.

After reaching a certain temperature, it is taken out for forging, which is the earliest steel, and later people appeared in smelting, and the more times it is repeatedly heated and forged, the harder the steel product will be.

This is because the carbon content of the raw material is constantly determined through forging, so the craftsman has set the number of times that the forging is repeated as a formal process requirement.

The analysis of modern metallurgical technology proves that after repeated heating and forging, the structure of the finished steel product will become denser, the composition will be more uniform, and the inclusions will be significantly reduced and refined, so as to significantly improve the quality of steel products.

During the Qin and Western Han dynasties, the new technology of frying steel with pig iron, including wrought iron, appeared, and the craftsmen changed the process of smelting to using fried steel or wrought iron as raw materials, so that the technology of smelting steel was further developed.

In this way, there is the saying that 100 steels are made into steel, and this method becomes an important step in the 100 steelmaking process and is fixed as a national process.

This provided the conditions for the birth of the Tang knife, a fierce killing weapon, which was extremely sharp and forged by hand from hundreds of steels, was a luxury in any era, and not everyone could afford it.

The Wa Kingdom on the East China Sea learned this craft in the Tang Dynasty, but it is a pity that many ancient advanced forging techniques, to later generations, the Chinese mainland has been lost, but the Oriental devils on the sea are still intact.

Therefore, in later generations, the world's most famous collection of knives are the three countries of Wa Guo and Uncle Sam and Switzerland.

If the craftsmanship of the ancestors is not lost, the above three kingdoms are all scum, but if these crafts want to be completed in their own hands or within the Tianlong tribe, Wang Tian feels that this is an impossible task.

No wonder the progress of civilization is so slow, even if the Tianlong tribe has its own traverser, but there is still no way to do it in one step, Wang Tian opened a few ornamental molds in emotion, the ugly daughter-in-law always wants to see her in-laws, now let yourself see what kind of quality she made for the first time......

…………

The last one is tighter in the codeword, I hope it can be completed, and I have tried my best...... Ask for points to collect, recommend, click, subscribe, in short, all kinds of requests, using the small fish of the sprinkling and rolling method

ABC