Chapter 658 Steel and Dream

Under the turbulence of molten iron, silicon and manganese are oxidized first, and then it is the turn of carbon in pig iron.

At a high temperature close to more than 1,500 degrees, carbon combines with oxygen in the air to form carbon monoxide, and the heat released makes the furnace "boil", and the flame from the furnace mouth almost engulfs the blowing pipe and the hob— This is why the brackets are also covered with a heat-resistant coating.

A large amount of carbon monoxide escapes outwards, contacts with the abundant air outside at the furnace mouth, and then burns violently, just like lighting the furnace. The roar of the gas expansion overwhelmed the sound of the steam engine for a while, and everyone couldn't help but retreat before this volcanic eruption. Only Roland stood facing the hot wind with his hands behind his back, completely immersed in the roar of steel flames. middle.

Unfortunately, the current technology can only be filled with air to make steel. If it can be replaced with pure oxygen in the future, the fireworks will be even brighter.

Phosphorus and sulfur are finally involved in the reaction. When the oxides of the two and limestone form slag, the flame begins to recede, and the molten iron has basically become steel at this time. The lighter slag floats on the molten steel, and as long as the converter is tilted, the molten steel can be poured out from the tapping hole like tea.

According to the rules of modern steel mills, it is necessary to lower the slag ball, slag dart, and use infrared detection to prevent the upper layer of scum from flowing into the ladle. The current technology of Neverwinter City can't do this, so Roland's solution is also very simple, that is, don't dump too cleanly, lift the furnace directly when there is still a small amount of molten steel in the furnace, and then pour it out together with the slag If you waste a little, you can waste a little. If you collect too much, you can go back to the furnace and re-smelt it. Anyway, he doesn't need to pursue any production efficiency.

In order to ensure the quality of steel, the finishing work is to remove excess oxygen from molten steel.

The bauxite continuously transported from Longsong Fortress just happens to act as a deoxidizer—a bucket of pure aluminum separated by Lucia is poured into molten steel, and the resulting alumina slag floats to the surface along with the unreacted aluminum. The surface layer, so far the entire steelmaking process is considered complete.

When the bright molten steel flowed into the mold and turned into pieces of dark red steel ingots, the officials of the city hall were too shocked to speak.

The main method of steelmaking in this era is still at the level of one-hundred-forged steel, and a full-body armor made of steel can be passed down from generation to generation as a family heirloom. "Star" has been able to produce steel in large quantities, but most people regard it as an accessory of the witch's ability. Without Anna and Lucia, this kind of steel cannot be produced.

But this time was different. When they saw that even if the converter steelmaking did not need to rely on the power of witches, it could be done by the hands of ordinary people, they vaguely realized what it meant

There is only one "Steel Star", but there can be countless converters and workers.

Steel is no longer a rare material. In the future, this strong metal will be produced from the foot of the North Slope to replace those soft and fragile wooden and bronze utensils.

Roland, on the other hand, was very satisfied with the frightened expressions of the city hall officials—if he couldn't be moved by the majestic beauty displayed in the steelmaking process, he probably wouldn't be a qualified leader. Workers may only see the steel ingot in front of them, but they should be able to see the future represented behind the steel ingot.

So far, Neverwinter's coal-iron composite industry has begun to take shape—from mining to iron smelting, then from iron smelting to steelmaking, and finally casting steel into various objects. This process can be completely realized by ordinary people. Coupled with the rapid growth of population and popularization of education, Roland could already hear the sound of steel wheels rolling over the ground.

It is true that the quality of the newly released steel needs to be further tested by Lucia, and slowly adjust the blowing time and slag removal formula according to the test results, but all this has finally started.

...

Roland, who had completed a great undertaking, did not stop at all. With the replay of the memory in the dream world, he still had a lot of work to do.

Now that the elementary textbooks have been completed and re-edited, he has turned his attention to higher-level mechanical textbooks—Neverwinter City now has the foundation for mass production of steel, so high-performance processing equipment is undoubtedly his next step. Something much needed. The first few batches of simple machine tools manufactured were less and less suitable for processing high-end products, and they seemed a little powerless in the face of parts such as fortress guns, heavy machine guns, and grenade fuzes.

Where can I find detailed drawings?

The school library might be a good choice. Roland often went there when he was studying, and he never met the legendary encounter. Instead, he read a lot of miscellaneous books, many of which involved the principles of mechanical design.

After dinner, he went to bed early.

Since wandering in another world does not count as sleep, the first day will be very hard if you work and rest according to the normal time. In addition, there is no air-conditioning in the apartment building, and it becomes a delusion to catch up on sleep under the hot midday sun. He could only fall asleep early and use the energy saved in his dreams.

Entering the dreamland, it is still a sunny midsummer morning.

There were more than a dozen missed calls on the mobile phone by the bedside. When I clicked on it, it was all calls from Erdao traffickers, and the same was true in the text message box.

"Brother, do you still have any armor there? I have a friend who just wants to collect some filming. If you have any, contact me immediately."

"This time the price can be raised a bit higher, how about 700?"

"The swords and swords are also increased by two hundred, which is interesting. But you don't need to start, it looks scary."

"If you're not satisfied with the price, we can talk again."

"Brother, can you call me back?"

Roland directly turned to the last text message, which was sent by the bank, showing that the balance in the card had risen to 3,600 yuan, of which the newly credited 1,500 yuan was the living expenses from the call from Jie Luo's family.

This money is enough for him for a long time.

With a tap of his fingers, he deleted all the text messages, put on short-sleeved shorts, and walked into the living room.

At this point in time, Zero hadn't woken up yet.

Roland didn't bother to wait for the little girl to make breakfast, so he went downstairs and found a noodle shop in the alley and sat down.

"Boss, a bowl of shredded pork noodles, a large portion."

"Okay!"

Now that you have money, you have to enjoy it, right? You must know that this is a delicacy that even the king can't enjoy - after all, there is no rice in Graycastle.

The hot vermicelli was served quickly, and while eating breakfast, Roland looked at the apartment building opposite.

So far, the farthest distance he has traveled is the second-hand bookstore and small Internet cafe two streets away. Because he is busy collecting money and memorizing materials, this is the first time he has leisure time to observe the building of the soul from another angle. residents.