Of course steel will rust, but the corrosion rate of steel is much slower than that of iron. Using steel wires to make nets can solve the problem of fish farming to a certain extent. Of course, fishing nets are best made of nylon and other materials. It’s just that the world has not yet begun to engage in chemical engineering. Only some alchemists are conducting the most basic chemical research. Don’t be delusional for advanced chemical products such as nylon.

When the queen saw the steel wire, all her pride just now flew outside the clouds of Jiuxiao, and she was angry: "How much steel do you need to make a net that can keep fish in the river? How much does it cost? You just want to raise a few broken fish. Investing so much steel will only lose money, it is impossible to make money at all."

Robb smiled and said: "No, you are mistaken. The iron and steel thing will soon become one of the least valuable things in Westwind Town. Well, after your mine is also digging like mine, where are you? The steel in the country will also become worthless. Then you will find that it is very cost-effective to use steel wire as a net to raise fish. Believe it or not?"

The little head of the patriarch Catman swayed from side to side, unbelieving, completely unbelieving, how could steel become the least valuable thing? This thing has never been worthless, it has always been super expensive, good or not, an iron pot can sell for a lot of money.

However, Miss Queen believed!

Because she knows that Robb’s mining company’s ability to produce steel is extremely abnormal. With the cooperation of mine carts and large smelting furnaces, the molten iron spews out of the furnace like money, the speed...

The only thing to be gratifying is that the railroad track that Miss Queen finally got to sell iron was also assisted in the mine. It won’t take long before her mining company will begin to produce a large amount of iron, but she can barely keep up with Robb’s. How to play.

What she is worried about now is that Robb is a one-to-three, she can match four, Robb one-to-five, she can match six, but if Robb comes to a pair of kings someday, what will she do with ? Just like the mining robot last time, Miss Queen couldn't follow it at all. Fortunately, Robb took it apart by herself, and only needed its engine, otherwise Miss Sister would really vomit blood.

Now there is one thing Miss Queen can't keep up with, and that is-steel!

Robb's steel is made by hand rubbing, with high hardness and strong corrosion resistance.

But Miss Queen’s men are still using the ancient craft of "hundred steel making", that is, using iron to be repeatedly beaten, beaten, beaten a hundred times, which is also called "bailian", through constant beating. Remove the impurities and increase its hardness, and then it feels hard and black as if it is very powerful, so it is called "steel", and together it is called "hundreds of steel."

In fact, in the eyes of a modern person like Robb, it is still iron and cannot be called steel at all.

Miss Queen looked aggrieved: "How did you make this steel? It's fine if you hand rub the pudding and refuse to teach me. You can't deliberately conceal something like steel. It's not for food. ."

Robber said: "Why can I teach you if I don't eat it?"

"Because you took advantage of the shortcomings of women who like to eat sweets and cheated me frantically!" Miss Queen said with a serious face: "I can tolerate the use of sweets to cheat money, but I really don't like to eat steel. In this regard, you Surely I can't lie to my money. It's better to teach me to forget it, what do you think?"

Robb laughed loudly: "You ghost woman, you just want to cheat on technology, but don't want to spend money. Forget it, let me teach you!"

In fact, Robb preached, but he couldn't teach. Because "hand rubbing steel" can't teach other people, this is Robb's game skill.

But he is well aware of one thing. It is unscientific to keep rubbing steel with his own hands. This is not conducive to the development of the whole society, and it is not conducive to being lazy. If you want to sit lazily and enjoy everything, you can’t always Rubbing on your own, you have to let the world's technology keep up.

As a matter of fact, Robb doesn't know how to make steel himself. He only knows a general idea, that is, if you mix iron and carbon together in a certain proportion, you can change iron to a harder, more powerful steel. The hardness of steel is related to this ratio.

It doesn't matter if you don't understand it. As long as you can wake up Miss Queen, she devotes her country's efforts to research, and she will always succeed in her research.

Robb smiled and said, "Do your blacksmiths know how to carburize?"

"Carburizing method?" The queen was stunned for a moment, then turned around, and said to the nearby attendant: "Immediately find the most powerful blacksmith. Immediately, immediately."

Her Majesty emphasized the tone and said "immediately, immediately." Of course, it was immediately immediately. After a short while, an old blacksmith was brought to the crystal ball.

"Carburizing, understand?"

When the queen asked, the blacksmith immediately shook his head and said, "I don't understand!"

Robb thought to himself: I definitely understand, but they probably don't know that their process is called "carburizing".

He asked in a different way: "Then how did you turn iron into steel?"

The blacksmith laughed and said, "It's simple. Let's burn the iron block in charcoal, so the burned iron will be extremely hard. Then we take it out and beat it hard. Repeatedly, it becomes steel!"

"Yes! This is the carburizing method." When Robb heard this, he couldn't help applauding, amazing! People in this world do not understand chemistry, but after thousands of years of exploration, they know how to bury iron in charcoal and burn it. This way, carbon element can penetrate into the iron and make the iron harder. It is called the wisdom of the working people.

Robb smiled and said, "Well, your method is very powerful! But, do you know why iron is harder when it is burned in charcoal?"

"I don't know!" The old blacksmith shook his head: "Why?"

Robb smiled and said: "Well, what I want to say next is God-level craftsmanship. Listen carefully. If you don’t understand, I don’t care. I will just say it once. Understanding how much is your good fortune. Learn If you are the best blacksmith in the world, I will not be responsible if you can’t learn it.”

As soon as these words came out, there was no way the blacksmith didn't hurry to listen. The queen next to her waved without a trace, and a clerk came out from the side, lifted the pen, and put on a picture ready to record.

Robb smiled and said: "For any technology, you must first understand the principle. Only if you understand the principle can you make it better. I will first explain the principle of steel making. Steel is composed of two elements: iron and carbon. Planting things can only be formed by matching them together in a certain proportion."

The secretary quickly remembered...

The old blacksmith asked, "What is carbon?"

Robb smiled and said: "The carbon element is too troublesome to explain. You just need to know that carbon element is a substance contained in fuels such as charcoal and coal. If it enters iron, it will turn iron into Hard. Therefore, your act of burying iron in charcoal and burning is to let carbon element enter the iron. This is what I originally said-carburizing."