Tian Hao let go and made all the tens of thousands of kilograms of coal collected by Huashan into coking coal. At the same time, he also fired a batch of carbon bricks. Although the quantity was not large, it was enough to pile up the inner furnace. As for the external furnace, it would be made of ordinary clay refractory bricks.

"Can this kind of strange furnace really burn out black iron?"

Yue Lingshan looked at the strange stove in front of her, but she really didn't understand that this thing could actually burn out black iron.

I did see the stove in a cave before, but I didn’t know the internal structure at that time. This time she saw Tian Hao build this stove brick by brick. The structure inside is very complex and weird.

Ignoring the girl's doubts, Tian Hao checked the stove again, and after confirming that it was correct, he looked at the cheap master beside him.

"Master, have the vents been dug?"

After all, this cave is located inside the Huashan Mountains, and ventilation is a problem.

Once the furnace is operating for a long time, it will inevitably generate huge heat. Once the ventilation is not good enough, the entire cave will become extremely stuffy.

The most important thing is that in general, combustion requires air as support. Only when it is most critical will it be replaced with oxygen-enriched combustion to further increase the temperature.

So ventilation is very important!

"Originally, there was a vent in this cave, which could form convection with the entrance. I have expanded it with you and your uncles these days. In addition, the pedal blowers you designed are enough to ensure the air in the cave."

With his long beard caressed, Yue Buqun had already done the basic work according to his disciple's requirements, and just waited for the furnace to be opened to forge the black iron.

"Open the furnace!"

Taking a deep breath, Tian Hao ordered, and immediately a master came forward to light the stove, and Li Buli and others also surrounded him to assist.

The forging of the black iron must be kept confidential. Even among the second-generation disciples of the Huashan Sect today, only Tian Hao and Yue Lingshan are here, and there is no one else except that, and they can be kept confidential to the greatest extent.

After a while, the stove heated up, and everyone could feel a burning heat even through the stove.

"Stop the blowing, close the air inlet No. 1, and open the air inlet No. 2."

Seeing that the temperature had increased almost the same, Tian Hao signaled to open the No. 2 air inlet.

The middle-aged man who turned the bellows stopped, closed the air outlet on the bellows, and opened the air inlet marked with two.

Although the blowing stopped, the flames in the furnace were still burning, as if an invisible wind was blowing.

"Can you control the wind?"

Yue Lingshan was very surprised. Although she had seen it many times in that cave before, it was the first time she saw the whole process and really didn't understand the mystery inside.

"Hot air is lighter than cold air. As long as the stove boils and forms hot air, it can rise up along the air outlet above, and then form a suction force at the downwind."

After a casual explanation, Tian Hao is not unfamiliar with this kind of thing.

He is a rural person. There is a kind of stove called a wind-sucking stove in the countryside. It can absorb air independently without a bellows, causing the flames to burn.

In the past, he built a wind-sucking stove in that cave instead of human power to pull the bellows, otherwise he would not be able to forge it alone.

"It seems to be somewhat similar to Kongming lantern."

An old man thought something and felt that this principle was somewhat similar to the Kongming lantern that could fly.

After being reminded, others suddenly realized.

The Kongming lanterns and the others have heard of it, which can fly to the sky, and the general candlelight flames are always upward. They didn’t understand it before, but now they finally understand it.

After thinking it through, everyone couldn't help but look at Tian Hao with admiration.

Although the principle of inner center seems simple, it is great wisdom to be able to learn and apply it.

"Close off the air inlet No. 2 and open the air inlet No. 3."

After waiting for a while, Tian Hao ordered again and turned into the No. 3 air inlet.

The cold air sucked in from the No. 3 air inlet is first heated through the pipes mounted on the stove, turning into hot air, and then transmitted to the inside of the stove.

Cold air combustion itself consumes some of the heat, but hot air consumes much lower heat, which further increases the flame temperature in the furnace.

Tian Hao also put several meteorite iron ingots at the core of the flame and calcined them until they turned dark red.

"Close the air inlet No. 3, open the air inlet No. 4, and slowly press down the cowhide bag."

He opened his mouth again and ordered that a middle-aged man not far away slowly pressed down on the cowhide bag beside him.

It was a real cowhide bag. I specially asked Lao Yue to find some cows to break the beef bones, and take out the beef bones bit by bit to ensure the integrity of the cowhide to the maximum extent. Then, seal all the holes with glue and needles as a sealing bag for storing oxygen.

There is no way, the conditions are limited, so I can only do this.

As pure oxygen is introduced into the furnace, the flame temperature further increases under pure oxygen combustion, and within a short while, a few meteorite iron ingots are burned to a bright golden color.

"It's done, it's done!"

Through the observation hole, I saw that the meteorite inside turned bright golden, and everyone was so excited that they couldn't help themselves.

Before, Yue Buqun said that Tian Hao could temper the meteorite into the black iron but they didn't believe it. They didn't expect that they could really do it, at least the temperature was enough.

"Take iron!"

Holding a meteorite iron hammer, Tian Hao spoke again and ordered.

Immediately, a man used an iron clip made of meteorite to clip out a meteorite iron ingot.

"Random cloak hammering technique!"

With a roar, the internal force movement of the enthrone in the Great Cheng realm was smashed heavily in the meteorite hammer in his hand.

"Dou!"

The deafening sound spread out, and with the help of the anti-shock force, the hammer head was swung up, and the body turned around, causing the hammer to smash it down again.

“Double …”

One hammer is heavier than the other, and the strength and internal strength are constantly superimposing.

That's right, Tian Hao used the unique method of the Tang family's cloak hammer, but he had no place to learn secretly, so he could only copy it.

After understanding the importance of black iron, he made plans for his future.

Although martial arts is the main position, he has to be promoted to a deputy position. At the beginning, he chose the deputy position of blacksmith.

When it comes to blacksmiths, we have to think of a mistress. When it comes to mistresses, we have to think of the cloak hammering method.

The thing itself is a method of using force to fight and constantly accumulating strength with the help of countershock.

So he asked his master's wife to look for martial arts that could leverage the strength to fight, and finally got the Eagle Claw Monument Wrestler.

Since he practiced the Eagle Claw Monument Wrestler to the Great Realm, he has been thinking about the method of hammering the cloak in the copycat, and finally he figured out a little bit of mysteries.

Especially after superimposing Aunt Oriental's innate attributes, her understanding doubled and she finally created this copycat version of the chaos cloak hammer method.

Yue Buqun and others also saw something was wrong and looked shocked and suspicious.

Without looking at it, you can tell that the force of the hammer is increasing with the increasing louder and louder sound, but this is obviously beyond the limit of power that Tian Hao should have.

How did he burst out with his ultimate power beyond his own?

Did you use some desperate secret method or take some medicine?

When they thought of this, Yue Buqun and others became anxious.

You should know that Tian Hao is a peerless genius who can enlighten himself independently. He has a bright future. There is no need to swallow taboo drugs for a little bit of black iron and ruin the future.

The gain is not worth the loss, the gain is not worth the loss!

"Don't bother Hao'er, he's fine."

Stopping her anxious husband, Ning Zhongze's eyes were full of brilliant colors, and there was a vague guess in his heart.

If the guess is true, then this disciple is too evil, and he is almost comparable to the true man Zhang Sanfeng, the Zhenwu Taoist Master of Wudang, when he was young.
Chapter completed!