Fu Song believes that there is no need to give a detailed description about the four major steel mills in China, or the four major steel giants.

Because as long as we know that it is the existence of the four major steel mills, China has the confidence to promote its major power heavy industry to the world.

Take a deep breath, look at the "student" behind Wang Weidong, and then look at the energetic Wang Weidong.

Fu Song realized that although he was mentally prepared, he underestimated the guard.

The other party's position in the steel world is definitely not inferior to that of the western king Hao Yuezhu.

He greeted everyone with a smile, and Fu Song stood beside him as a little transparent person.

Wang Weidong waved his hand: "Let's start!"

Suddenly, workers began to add raw materials to the blast furnace.

The raw materials for steelmaking are very simple: iron ore and charcoal.

The refining principle is simpler, that is, under high-temperature environments, the reduction of charcoal is used to reduce the high-priced iron in iron ore to elemental iron.

The elemental iron is then fused with excess charcoal to form iron, charcoal alloy, that is, steel.

The history of steelmaking is also very long, and it existed as early as the Spring and Autumn Period and the Warring States Period.

However, steelmaking is easy, but it is even more difficult to make a good furnace of steel.

The simplest thing is the carbon content in steel. Different carbon contents show completely different properties.

The higher the carbon content, the stronger the steel is, but the hardness will be reduced.

The lower the carbon content, the greater the hardness of the steel will be, but the ductility will be reduced and it will easily break.

This is the case in the idiom "too hard and easy to break".

Of course, if you want to obtain steel with excellent performance, in addition to carbon content, other metals must also be added, such as nickel, chromium, etc.

Pen tip steel is a steel with extremely complex composition and forging technology. The hardness of qualified pen tip steel is second only to diamond.

Based on this data alone, you can roughly guess the difficulty of smelting, not to mention indicators such as wear resistance, ductility, and plasticity.

The iron ore slowly melted into juice in the blast furnace. During this process, Wang Weidong kept instructing people to add medicines, and at the same time patiently explained the reasons for doing so.

Even though Fu Song didn't understand steelmaking, he also listened to it.

The steel water became redder in the blast furnace, and Wang Weidong's expression was no longer as calm as before.

He stared at the color change in the furnace and suddenly said, "Add condensate!"

A worker pressed the switch, and a large amount of white smoke instantly emerged from the blast furnace.

When the white smoke dissipates, the red steel in the furnace directly turns into a dark silver solid. This is the prototype of steel, rough steel.

Fu Songzheng matched the phenomena he saw with theoretical knowledge when he suddenly heard a voice exclaiming: "In 7 seconds, five tons of steel have completely solidified, how is this possible?"

After glanced at the person who was talking, Fu Song remembered that the other party was named Su Yumin, who was a first-class steel engineer at Baosteel.

He can't be blamed for being surprised. There are two core elements of steelmaking.

The first is rolling steel, and the second is cooling.

Rolling steel is very simple, that is, it is to continuously roll and remove impurities from the steel to obtain steel with excellent performance.

For example, the common iron-smashing in TV dramas is the most commonly used steel rolling technology in ancient times.

The principle of cooling is similar to that of rolled steel. The common one is water cooling, that is, after the iron is smashed, the blacksmith will directly pour a scoop of water on the burned iron block.

Of course, modern steelmaking technology will not use this method that is extremely difficult to control. In Baosteel's laboratory, Su Yumin can find at least 200 cooling methods.

Of these 14 were invented by him.

But among these 200 cooling methods, none of them can completely solidify five tons of molten steel in 7 seconds.

Wang Weidong looked at Su Yumin and smiled: "Why is it impossible?

Not to mention 7 seconds, I still have a way to achieve the same effect within 5 seconds.

If you don't agree, we can make a bet.

How about a 12-ton vacuum induction smelting furnace? I remember that what you Baosteel is best at is making this."

Upon hearing this, Su Yumin waved his hand quickly: "I dare not make a bet with you, not to bet for 5 seconds, even if you say 3 seconds, I believe it."

Just kidding, there was an engineer in Angang before that, and he insisted on competing with Wang Weidong.

As a result, all the pants were lost.

With such a precedent, Su Yumin will not be stupid enough to fight against the other party.

But while he admitted his conscience, he couldn't help but think about how the other party did it.

Because for steel, the shorter the cooling time, the better the performance of the steel is.

Therefore, although the blast furnace in front of us is crude steel, its toughness is probably not inferior to that of fine steel.

Seeing that he had not caught the fish, Wang Weidong felt a little regretful. He directed people to take out the steel and put it in the refining furnace for a second smelting.

Then rolling, cooling, feeding...

Because it was an experiment, the five tons of steel were divided into thirty groups by Wang Weidong and forged in different ways.

Because of the high workload, the technicians behind him who studied with him no longer only took notes.

They directed the workers to be busy according to Wang Weidong's experimental plan, while they kept measuring various data and doing comparative analysis.

Fu Song was originally curious about steelmaking, but soon lost interest.

In addition, the steel forging is high temperature throughout the whole process, and it will explode if you are not careful.

In just half a day, the blast furnace used to initially smelve iron ore was blown up three times.

Although no one was injured, Fu Song was still frightened.

As a business genius, my buddy is good at making money, not experimental research.

So I'd better go back to the office to have a cup of tea and help Morningstar Refill Factory design the future development direction!

He did what he thought of, and Fu Song quickly turned around and escaped.

*

Wang Weidong's experiment lasted for seven days.

During these seven days, Fu Song finally experienced how crazy the older generation of researchers was.

Wang Weidong's eyes were full of blood. He had not rested for two days and two nights.

His body, which was originally weak, seemed to fall down as soon as he blew, but his energy was unprecedentedly vigorous.

"Narrow steel...Narrow steel...

What method can be used to increase its wear resistance?" Wang Weidong murmured to himself.

Wear resistance has always been the biggest problem that plagues the performance of pen tip steel.

It seems to be similar to the hardness, but it has subtle differences.

Because if the steel is to be wear-resistant, in addition to being hard enough, it also needs to have a certain degree of ductility to ensure the toughness of the ball.

But I added hundreds of auxiliary materials for smelting. Even the best-performing red phosphorus has a much worse performance than the foreign pen tip steel.

Suddenly, he looked at Su Yumin: "What other materials have not been added?"

Su Yumin shook his head: "It's gone.

This time I prepared a total of 126 kinds of materials, but all failed."

After a pause, he said, "Professor Wang, don't be too anxious.

The pen tip steel manufacturing technology of foreign companies is their accumulation over hundreds of years.

Let’s study it slowly and one day it will succeed.”

Wang Weidong glared: "What should I study slowly? When doing research, I have to strike while the iron is hot.

If you really study foreign research for hundreds of years, what's the point even if you study it?"

"this……"

"What's this? Think about it quickly? I'll find out which other method is not useful.

You can think about it quickly when you see what I do!

I don't care. If I can't think of it today, no one is allowed to rest."

Everyone looked at each other, and at the same time they were a little scared.

Yesterday they had stayed up with Wang Weidong all night, if they stayed up late today...

Seeing everyone's embarrassment, Fu Song knew what he had to say:

"Uncle Wang, you really don't have to worry.

As the saying goes, haste, and although Brother Su’s words just now are not completely correct, they still make some sense.

I know you do this to save money for me, but I'm not short of money..."
To be continued...