"The furnace temperature is 1000 degrees..."

"The heat recovery device has begun to transfer the heat energy to the heat magic steelmaking furnace..."

There was another even greater cheer, and even the lord was all smiles.

Although he didn't understand what it meant, McGray also saw it. It was obviously a very incredible thing.

"The furnace temperature is 1500 degrees..."

"The furnace temperature is 2000 degrees..."

"The thermal energy on the heat recovery device has reached 60% of the design peak..."

After hearing this sentence, McGray suddenly remembered something. He heard a civil servant from the Department of Industry said that the melting point of steel is more than 1500 degrees, and the melting point of iron ore is lower, generally only about 1200 degrees.

In other words, even if you want to cast pig iron ingots, up to 1600 degrees is enough.

Why should it be heated to 2000 degrees?

When he was full of doubts, Pierce next to him asked in a low voice: "At such a high temperature, the iron ore must have melted into molten iron. Lord Lord and Miss Archon are standing so close, don't they feel hot?"

McGregor also found something wrong. Usually when they used the blast furnace to make iron, the heat waves around the blast furnace were rolling, and there was no room for people within 5 meters, and it only felt hot within 10 meters.

But looking at the appearance of Lord Lord and Miss Archon, there was no sweat on the skin, as if there was no heat at all.

Lord Lord is a powerful transcendent, and may not be afraid of the heat, but I never heard that Miss Archon is also a transcendent.

This is not only the case of the two big men, but also the ordinary civil servants around them. Those black uniforms are almost sticking to the surface of the steelmaking furnace, as if the furnace is not filled with ultra-high temperature molten iron at all, but a furnace of warm water.

But McGray believed that no one would dare to deceive Lord Lord in person. Since those black uniforms shouted "2000 degrees", the temperature must be so high.

All these unusual abnormalities made McGregor a feeling that the Three Views were completely subverted.

He has lived for more than 30 years. This incredible method of steelmaking, not to mention having seen it, has never even heard of it.

"The furnace temperature is 2500 degrees..."

"The thermal energy on the heat recovery device has risen to 80%..."

At this time, a huge shout appeared, and a tremor was clearly heard in the voice.

"Start the rune group [decomposition] immediately!"

A black uniform seemed to be ready for a long time. The moment he heard this command, he immediately responded with a loud voice, and quickly put his right hand on a rune square plate on the surface of the Hot Magic Steelmaking Furnace.

Just like when the Heat Demon heater was activated, this rune square board also began to flash blue. The only difference was that it was lighted slowly. It took 4 to 5 seconds for the square board to be completely covered by blue light.

This also means that the rune is fully activated.

However, at this time, McGray saw a strange scene.

The metal tube on the top of the steelmaking furnace started to tremble slightly, and he heard a slight "hiss" sound.

This is... the sound of air currents!

Even the metal pipe is vibrating, which shows that the jet of air is quite violent.

Ten seconds later, the shaking of the metal pipe became more and more obvious, and the screaming noise of the airflow became louder and louder, and it was as if a storm was blowing outside the workshop.

The same grew along with the doubts in McGray's mind.

What kind of steelmaking method is this?

Why do you still spit out gas during the practice?

Where did the impurities in iron ore, namely slag, go?

Don’t you need to consider slagging?

However, McGrey didn't dare to speak, and no one could ask. Everyone he knew had the same doubts as him.

He can only wait quietly for the answer to be revealed.

What made McGregor extremely puzzled was one of the greatest advantages of the magic steelmaking method-without any residue.

Under the action of the rune group [Decomposition], all the components in the iron ore will be completely decomposed into elemental substances. For example, the main component of ferroferric oxide will be directly decomposed into iron and oxygen, which is exactly what generates airflow. the reason.

As for why the airflow is so violent, this is actually very easy to understand.

For every unit of Fe3O4 that is decomposed, 3 parts of iron and 2 parts of oxygen will be produced.

1 mole of oxygen has a volume of 22.4 liters, while 1 mole of molten iron is only 7.2 ml. The volume difference between the two is several thousand times. That is to say, the volume of oxygen produced in the ironmaking process will be 2000 times that of molten iron. .

With so much oxygen, of course there will be a phenomenon of gas spewing wildly.

In addition, iron ore also contains other impurities, such as harmful elements such as phosphorus, sulfur, potassium, sodium, and arsenic, as well as beneficial elements such as manganese, nickel, chromium, vanadium, and titanium.

Especially phosphorus, it will cause serious deterioration of the quality of steel, the so-called "cold brittleness", sulfur will cause "hot brittleness".

In the normal steelmaking process, if the iron ore has a large phosphorus and sulfur content, special phosphorus and sulfur removal procedures must be used, which also means that additional fuel costs are required, which ultimately leads to an increase in total costs.

But using the rune group [decomposition], there is no need to worry about all of the above.

At a high temperature of more than 2000 degrees, the decomposed phosphorus, sulfur, potassium, sodium, and arsenic will all become gaseous. As the oxygen is discharged from the magic steelmaking furnace, there is no residue.

That's right, the magic steelmaking method is so awesome!

This step has a special name: magic decomposition method.

During the nearly three-minute waiting process, no one spoke, even the black uniforms. The wide workshop fell into silence, only the harsh air current screaming continuously.

And the screaming sound is getting smaller and smaller, which shows that the gas emitted by the magic steel furnace is getting less and less.

After another 2 minutes, when only heavy breathing was heard in the workshop, a voice suddenly broke the silence.

"Close the rune group [decomposition], add charcoal..."

"Open the rune group [Smelting], ready to stir..."

Several black uniforms moved quickly, and everyone put their right hand on the surface of the steelmaking furnace, and the blue light flashed again.

McGrey noticed that the surface of the steelmaking furnace actually had more than one rune square plate, but a total of 5 or 6 squares.

It can also be seen from this point that the internal structure of the steelmaking furnace must be quite complicated.

The workshop became quiet again, and a slight vibration from the steel-making furnace could be faintly heard, and something seemed to be spinning inside.

This time the waiting time was a little longer, about 5 minutes later, the black uniform in charge of the command spoke again.

"Release the molten steel!"

"Cool the billet!"

"Ready to turn on the conveyor belt!"

McGray was stunned.

This is... the billet...

Is there a mistake?

Am I crazy, or are these black uniforms crazy?

How could it be so fast?

Doesn't it take 3 or 4 hours to make iron in a blast furnace?

The steelmaking time is not much shorter. The gang of the industry department has a method of filling steel. Doesn't it take at least 4 hours?

But how long has it been now?

It's less than half an hour!

It's not just McGregor, almost all people in the territory who know a little about steelmaking and ironmaking are concentrated here, without exception, these people are all mouths.

There was also a faint commotion in the crowd. If it weren't for the Lord Lord's presence, I'm afraid someone could not help but whisper.

The movements of the black uniforms were very neat. The three black uniforms each held a silver-white iron box and walked to the left exit of the steelmaking furnace.

These iron boxes are not big, not exceeding 40 cm in length and width, and shorter in height, less than 20 cm in height. The materials used seem to be very thin, and the black uniforms can hold them easily.

Strangely, the surface of the metal box was still faintly shining with a hint of light blue. It was the first time McGrey saw this color of steel, which made him look more curiously.

In addition, the inside of the box seems to be coated with something like grease, which looks particularly shiny.

A black uniform quickly put the iron box into the furnace, followed by a "click" sound in the furnace.

However, the sound sounded a little intermittently. After a few seconds, it stopped again. After more than ten seconds, the "click" sounded again.

At this time, the steps at the right exit of the steelmaking furnace started to rotate slowly. McGray stared at it a few times, and realized that it was mostly the conveyor belt referred to by the black uniform.

The conveyor belt just moved less than 2 meters, and a silver-white box suddenly emerged from the exit.

It's the metal box that the black uniform put in just now!

But unlike before, there is an extra silver-white metal block in the box.

"The ingot is coming out..."

A black uniform shouted cheerfully.

boom!

This sentence immediately detonated the atmosphere in the workshop. The black uniforms cheered again, and the lord and the consul also stepped forward, standing beside the conveyor belt and watching.

McGregor's chin fell to the ground, and his eyes became bulging.

Under normal circumstances, shouldn't it be molten steel?

After only ten seconds, the steel ingot has cooled down?

Is this really fake?

The steel ingots inside are not wood painted silver, right?

But McGray’s suspicions were quickly falsified.

In the unbelievable gazes of a group of people, a strong man in the uniform of an island guard stepped forward and slammed the metal box up. The steel ingot suddenly fell out of the box and fell on the concrete floor with a dull sound. Extremely muffled.

"boom"!

This is exactly the sound of the metal ingot.

This sound, as if hitting McGregor's heart, clearly felt that there was a "click" in his head.

His three views are shattered!

Not only McGregor, but the moment the steel ingot appeared, his jaw dropped on the concrete floor in the workshop.