"Can this spar be used for casting?" Elder Tianqing on the side also showed a puzzled expression. He is also the head of the Heaven and Earth Gate's "Qi Hall" and is more concerned about casting matters.

Speaking of this Qi Tang, it is responsible for matters related to magic weapons and artifacts. It is not because the old man Tianqing knows how to cast, but because there are no skilled forgers in Tiandi Sect, so the Qi Tang is just an empty shell. At any rate, Tianqing itself

He knows how to make alchemy and is an alchemist, so he takes on all the positions related to "manufacturing"...

As for the disciples of the Qi Hall, they were originally craftsmen in Xuantian City. Some of the craftsmen survived and are now disciples of the Xuantian Palace Qi Hall.

When they heard that crystals were used to cast alchemy furnaces, they all looked puzzled.

Because I have never heard of crystals being used for casting.

Although crystals have a wide range of uses and can be used in many places. The main reason why crystals can even become a common currency in the cultivation world of Canlan Continent is its own universal value.

But the only place where spar is useless is in casting. Although spar is very strong and has a hardness comparable to some high-quality metal materials, it cannot be used for casting because it is not stable and can easily explode at high temperatures.

Even if you hit it hard, it may explode.

"I mean, it will be used when casting the alchemy furnace..."

Seeing the curious expressions on everyone's faces, Lin Feng added another explanation. He was busy now and didn't pay attention to whether his explanation was clear or not.

Anyway, he said this, but he didn't say it. Others still didn't understand after hearing his words. Lin Feng ordered the disciples to do this and do that. Fortunately, craftsmen are craftsmen, so just follow what he said and do it.

.

…

Beside, the women watching the excitement were also talking quietly.

Xia Yuxin asked Ji Meiniang next to her: "Sister Ji, do you understand what they are doing?"

"I don't know... Xiao Fengfeng just has a lot of flowers, and I can't understand it. But there must be a reason for what he does." Ji Meiniang replied casually, "Sister, I just wanted to ask you about these things about him.

What's the point? Especially with such a cart full of crystals, it's really weird to put them here."

"Yes, yes, I don't understand why he moved so many crystal stones."

"Girl, my sister is going to blame you now. It doesn't matter if we don't understand. You are his good wife. You can't not understand everything, especially... so much money."

"Sister Ji, you also made fun of me7e" Xia Yuxin said angrily.

"Hehe." Ji Meiniang suddenly blinked her eyes and lowered her voice, "Tell sister, what happened to you two after you two spent a year outside? Is there anything like that?"

When Xia Yuxin heard this, her cheeks turned red and she said in embarrassment: "Ah, Sister Ji! Why do you say this!"

"Don't you have that one yet? It's been so long..." Ji Meiniang looked at the words and made a judgment immediately. She said, "Girl, sister, I can tell you that for such an outstanding man as Xiao Fengfeng, there will be many women who like him.

You must hold on tight. If you want to catch his heart, you must first catch his body. Men are like this."

Xia Yuxin blushed with embarrassment and asked in a low voice: "Sister Ji, are all men so lustful?"

"Yes, men must be lustful, you can't be wrong." Ji Meiniang nodded firmly, "They will be tempted as long as they see a beautiful woman. If you don't hurry up, others may beat you to it."

Xia Yuxin was touched, her complexion changed, and her expression was a little complicated.

"Girl, what's wrong with you? You don't look good?"

"Ah, it's nothing." Xia Yuxin said hurriedly.

"Sister, no matter what happens between you two, you have to hurry up. For a girl as beautiful as you, if my sister were a man, she would be attracted to you. You have to make good use of it and don't let Xiao Fengfeng run away.

."

"Sister Ji, you always make fun of me..." Xia Yuxin blushed, but her expression looked thoughtful.

It's really easy for two little women to get off topic when chatting, and they suddenly switch from the issue of casting to the relationship between men and women.

Lin Feng accidentally glanced in their direction and saw the two of them seeming to be whispering. Then Xia Yuxin blushed and didn't know what they said. But the expression and the gaze secretly looking at him were chatting.

The content must be related to you.

I hope you won’t say bad things about me... Lin Feng prayed in his heart.

"Sect Master, look." A disciple interrupted Lin Feng's thoughts, "Is this air enough?"

Lin Feng focused his attention back on the shelf in front of him.

"Well, you did a good job." He nodded, "Now, take down all these shelves outside."

Under Lin Feng's command, the disciples gradually removed the scaffolding.

A strange-looking, tall furnace stood in the middle of the open space. The furnace was as high as two stories. Below it was a large furnace. And above it was a huge mold. This furnace was as big as

Part of the furnace is made of trillium clay, which can withstand extremely high temperatures. This is the "basic furnace" used by Lin Feng to cast the alchemy furnace.

The casting method he uses now is pour casting.

The so-called pour mold casting method is a very common type of casting. In the common folk casting technology, the pour mold casting method is as follows:

First, use simple materials to make a mold base for the utensil, place the mold base inside the sand mold, then let the sand mold solidify, and take out the mold base inside to form a hollow mold. As long as the mold base is placed in the hollow mold

, fill in enough casting materials, such as molten iron, and when the molten iron cools, they will form the shape of an object.

This casting method is very common among the people of Canglan Continent. Some relatively ordinary utensils are often made in this way. Therefore, the disciples of these utensil halls are not unfamiliar with this process. Lin Feng just follows them.

Once you explain what to do, they can do it step by step.

However, it is easy to make an ordinary-grade artifact using the reverse mold casting method, but it is too difficult to make something of high-grade, even close to an immortal artifact. Some omissions in the details will greatly affect the grade of the final product.

Influence.

For the alchemy furnace that Lin Feng wants to build, this is just a basic step. It is still far away from the alchemy furnace that Lin Feng wants. There are many subsequent steps.

Lin Feng flew up, looked around the basic furnace, flew up again, and looked at the upper entrance of the furnace.

"Well, yes, very good." He nodded with satisfaction. The basic skills of these disciples are still very solid, and this basic furnace is very good.

Elder Tianqing, the master of the Qi Hall, also flew over to take a look out of curiosity, but he didn't know much about casting, so he couldn't understand what happened after looking at it for a long time.

"That's it? Then what? What to do next?" he asked.

"Just watch." Lin Feng smiled lightly.

He stretched out his hand and grabbed it, and from the piles of materials next to him, some things flew out. They included purple cloud sand, star stone, Geng gold particles, and a small part of trillium soil. He mixed these four things according to certain rules.

proportions, mixed together.

The mixture tumbled up and down in the air, making a dense crunching sound when colliding with each other. Just like in a concrete mixer, it was constantly stirred and thoroughly mixed.

Then, Lin Feng raised his hand.

"Whoosh!" That large group of evenly mixed, sand-like things suddenly flew to the top of the blast furnace and entered through the entrance of the blast furnace. These things gradually filled the gaps in the mold.

"Light the fire." Lin Feng shouted, and a flame technique was released.

A large amount of charcoal had been piled in the furnace of the blast furnace in advance. They were ignited by the Flame Technique and immediately ignited a raging fire.

The temperature of the flame was extremely high, and the strong heat rushed towards the face, even making people who were close to it involuntarily take a few steps back. Even people with strong strength such as Tianjin felt unbearably hot standing next to the stove, and they even retreated to

Only when you are twenty steps away can you stand still.

However, charcoal is just a mortal combustible item. Although its flame is strong, its temperature is still far from the level of heavenly fire.

At this time, the crystal stones specially prepared by Lin Feng began to come in handy.

I saw him casually grabbing a handful of crystals from the cart of crystals. As everyone looked at them in confusion, Lin Feng threw the handful of crystals directly into the furnace.

"Pah! Pah..." As soon as these crystals entered the furnace and were burned by the high temperature, they immediately exploded violently.

Although trillium is not a very strong material, the furnace is cleverly designed to withstand such an explosion without being damaged.

After the crystal exploded, a large amount of energy was generated, causing the temperature in the furnace to suddenly increase! The originally orange flame instantly became incandescent.

"Whoosh whoosh!"

Lin Feng threw more crystal stones in one after another.

As the crystal exploded, the flame became more powerful, and soon all the flames in the furnace turned pure white. Even the entire furnace was heated by the high temperature, turning red, and then gradually turning white.

.

Amidst the strong crackling of the flames, you can also hear some slight noises coming from above the furnace. The materials used to cast the alchemy furnace are being gradually melted by the high temperature. Soon after, you can even hear the slight sound of liquid flowing.

The mixed materials have begun to liquefy!

Although the flame in this furnace is not a heavenly fire, in terms of temperature, it is no less than a low-grade heavenly fire!

The burning temperature of ordinary firewood, charcoal, or pebbles cannot meet the requirements of high-grade alchemy furnaces. Lin Feng can achieve this by directly mixing crystals with other combustibles and burning them under the furnace as fuel.
Chapter completed!