Yue Heng laughed: "Let Miss Yue break the bank, I can only say do my best, in addition, if Miss Yue needs any materials, please feel free to speak, Brother Lei doesn't say anything else here, that is, all kinds of precious materials have a little bit, I hope to help Miss Yue." ”

Lei Fat Man hurriedly continued: "That is, I Lei Hai only has the hobby of collecting materials on weekdays, and I am so busy that I don't even have time to make friends, and now I am still alone......

Yue Heng secretly laughed at Lei Fat Man in his heart, but he helped explain: "Brother Lei means that he used to be in the Qijun Mansion and was only busy with his career, but in fact, he is a person with a temperament and is very easy to get along with." ”

"Yes, yes, that's what I mean......" Lei Fat almost slapped himself, how could his IQ plummet after seeing the girl he liked?

Yue Feiyan pursed her lips and smiled, she didn't mind, and continued to introduce: "Earth fire is the biggest feature of the smelting field, according to the hardness of the gold and stone that can be smelted, the earth fire is divided into nine levels, and it can smelt different minerals. In addition, there is condensate water, although it is all drawn from the cold pool, but the cold pool is also divided into deep water and shallow water, and the characteristics of the cold water introduced in different smelting chambers are slightly different, and the forged weapons are also slightly changed, with slight differences in hardness, soft bending and sharpness. ”

Yue Heng nodded to show his understanding, the pool water is not pure water in the flask, naturally the pool water is close to a certain rich ore may carry related metal ions, carbon, manganese, sulfur, nickel, various elements play an important role in the process of smelting iron ore, the formula ratio is different, the deoxidation rate is different, and the characteristics of the steel produced will be completely different.

After talking about professional content, Lei Fatzi finally came back to his senses.

He also has some experience in forging, but his main thing is the invention of defensive equipment, mechanical arts, and small objects in life. He was a Mohist among the craftsmen.

It is clear that Yue Feiyan is a Luban faction among craftsmen, and is especially good at offensive equipment manufacturing. He has studied the forging of various weapons, and he talks endlessly about forging. is very knowledgeable, which made Yue Heng and Lei Fatzi greatly admired after hearing it.

Finally entering the sixth-order earth fire smelting room scheduled by Yue Feiyan, the three of them made preparations separately, Lei Fatzi and Yue Feiyan discussed smelting and forging materials, and Yue Heng was ready to try the combination of the "Metallurgy" rune and other weapon runes.

"If it's the same as I expected, this will reveal a major secret of the Zhongyuan World Runes!" Yue Heng relaxed and began to prepare poems in his mind.

Here, the fat man leaned over to Yue Feiyan and asked, "Sister Feiyan, what weapon are we trying to smelt and forge today?"

"Swords and spears can be used. Brother Lei, do you have any good suggestions?"

"Then I'll ask the third brother to see which kind of rune he has a better grasp of! But let's ask Sister Feiyan to tell me which weapon you are best at creating? ”

"Knives and swords! I have some knowledge of both. ”

After Lei Fatzi learned that Yue Feiyan was best at the skill, he discussed it with Yue Heng again.

Yue Heng is also inclined to swords and swords, first of all, these two runes are weapon runes second only to bow runes, they have existed in his divine palace for a long time, and they have been baptized and stimulated by most of their talents, so they should be the most powerful.

Then, he had the most poems about swords in his head. Wait a minute, maybe he will have to chant poems to see if he can resonate with Fuxi Xingchen, plus the corresponding runes. Achieve the best results in one fell swoop.

"Then let's make it a sword! you prepare the materials first, and then show them to me. Yue Heng said.

Lei Fatzi didn't pay much attention to this sentence in his heart, he thought that how could a literati understand the materials for casting swords, this interlaced line is like a mountain, and the difference is too big.

Yue Heng had already chosen the poem "Ancient Sword Chapter" in his heart, which was about the Longquan Sword, and he was constantly looking for relevant information in his mind.

Longquan sword is smelted from pig iron and cast from medium carbon steel, which is made with a special quenching process to make medium carbon steel have the characteristics of spring steel. It can be rolled into a belt, and it can be straightened immediately after being pulled out. Chopping copper and iron is like cutting mud and removing soil, and the sharpened blade is cold and shining. The blue light is dazzling.

These texts made Yue Heng a little confused, he didn't know the formula of the real Longquan Sword, but he could deduce the approximate possible alloy formula through some basic industries.

Those rare materials are very important, and elements such as cadmium, nickel, manganese, and carbon must be added exactly.

Yue Heng decided to give it a try first, he saw that there were already a lot of materials piled up in front of Lei Fatzi, so he walked over and looked through them, and asked, "Miss Yue, can you briefly introduce them?" I want to know what characteristics they have after smelting and forging them, the more detailed the better. ”

Yue Feiyan smiled: "Could it be that Gongzi Yue wants to smelt and forge by yourself?"

Yue Heng shrugged: "I just want to try to see if I can control one or two." ”

Yue Feiyan no longer insisted, and said with a deep sigh: "This is my experience from many years of forging, plus the special experience accumulated from my Yue clan, please don't pass it on." ”

Yue Heng and Lei Fatzi agreed, and the craftsmen of the Yue Kingdom relied on this to eat.

So Yue Feiyan introduced the minerals in front of him piece by piece: "This hematite is the most common smelting iron embryo, which needs to be smelted with high-temperature ground fire and burned with charred carbon......

Yue Heng listened very carefully, most of the ancient forging industry was based on experience, and if you want to sort out a perfect system, almost no one can do it.

This forging system must be based on a complete physical and chemical system, otherwise let them analyze why the combustion of coke and oxygen produces carbon monoxide, how carbon monoxide removes oxygen from molten iron, 2Fe + O2 = + Co2 = Fe3O4 + Co, if there is no knowledge of the chemical system, this chemical equation will never be understood, not to mention how silicon, manganese, sulfur and other elements exist.

After Yue Feiyan finished speaking, Yue Heng called the "Ye" rune in his body without warning, the blue light flickered, and his divine sense combined with the golden dragon in the Divine Palace, emitting several faint golden lights, deep into the pile of materials in front of him.

At the same time, Lei Fatzi and Yue Feiyan's bodies were also irradiated by golden light, and they inexplicably felt Yue Heng's thoughts, which turned out to be an internal analysis of these materials!

The "Metallurgy" rune can allow the beneficiary to have a deeper understanding of the decomposition of various weapons and minerals, as well as smelting, and what Yue Heng is doing now is to deeply analyze and decompose minerals.

"You only need to know that the iron content of hematite is only about seventy percent, and the rest are all impurities that need to be further refined. The first step in smelting is to remove impurities, and my divine consciousness should be able to control some of them, helping you to eliminate impurities that are not easy to remove, but it will consume a lot, and I don't know if I can afford it. Yue Heng began to say his smelting plan. (To be continued)