Under the surging of molten iron, silicon and manganese are oxidized first, and then it is the turn of carbon in pig iron.
At a high temperature of nearly 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 sprayed from the furnace mouth almost engulfs the blowpipe and the furnace frame. The reason why the stent is also covered with a heat-resistant coating.
A large amount of carbon monoxide escaped to the outside and came into contact with the abundant outside air at the mouth of the furnace, and then violent combustion occurred, as if the furnace was set on fire. The roar of the gas expansion overwhelmed the sound of the steam engine for a while, and everyone could not help but retreat in front of this scene like a volcanic eruption. Only Roland stood with his hands on his back and stood facing the hot wind, completely immersed in the roar of the steel flames. middle.
Unfortunately, the current technology can only pour in air to make steel. If it can be replaced with pure oxygen in the future, the fireworks will be even brighter.
The last reaction is phosphorus and sulfur. When the oxides of these two and limestone form slag, the flame begins to retreat, and the molten iron has basically turned into steel. The lighter slag floats on the molten steel, and as long as the converter is tilted, the molten steel can be poured out of the tap like tea.
According to the rules of modern steel mills, it is necessary to lower slag balls, slag darts, and use infrared detection methods to prevent the upper scum from flowing into the ladle. Neverwinter's current technology is still unable to do this, so Roland's solution is also very simple, that is, don't pour it too cleanly, lift the furnace directly when there is still a small amount of molten steel in the furnace, and then pour it along with the slag Out, waste a little bit, waste a little bit, and collect more and can be re-refined, anyway, he doesn't need to pursue any production benefits.
In order to ensure the quality of the steel, the finishing work is to remove the excess oxygen in the molten steel.
The bauxite continuously transported from Changsong Fortress can just act as a deoxidizer. A bucket of pure aluminum separated from Lucia was poured into molten steel, and the resulting alumina slag floated to the surface together with unreacted aluminum. At this point, the entire steelmaking process is complete.
When the bright molten steel flowed into the mold and turned into dark red ingots, the city hall officials were too shocked to speak.
The main method of steelmaking in this era is still at the level of forging into steel. A full-body armor made of steel can be passed down from generation to generation. No one has seen steel that can be produced like running water, even if it is a "steel star". Steel can already be produced in large quantities, but most people regard it as an accessory to the witch's ability. Without Anna and Lucia, this kind of steel could never 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 with the hands of ordinary people alone, and they faintly 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 sturdy metal will be produced in abundance from the foothills of the North Slope, replacing those soft and brittle wooden and bronze utensils.
Roland was very satisfied with the frightened expressions of the city hall officials. If he could not be shaken by the majestic beauty displayed in the steelmaking process, he would not be a qualified leader. Workers may only see the steel ingots in front of them, but they should be able to see the future behind the steel ingots.
So far, Neverwinter's coal and iron review industry has begun to take shape. From mining to iron smelting, from iron smelting to steel making, and finally casting steel into various objects, this process can be realized by ordinary people. Coupled with the rapidly growing population and popularization of education, Roland can already hear the sound of the steel wheel rolling over the earth.
It is true that the quality of the newly released steel needs to be further tested by Lucia, and the air blowing time and the slag removal formula will be slowly adjusted according to the test results, but it has finally started.
…
Roland, who has completed a great cause, has not stopped at all. With the help of the memory replay of the dream world, he still has a lot of work to do.
Now that the elementary textbooks have been completed and re-edited, he has turned his attention to the higher-level mechanical textbooks. Now that Neverwinter has the foundation for mass-producing steel, high-performance processing equipment is undoubtedly what he urgently needs in the next step. thing. The initial batches of simple machine tools are increasingly unsuitable for processing high-end products, and they are somewhat powerless in the face of fortress guns, heavy machine guns, and grenade fuzes.
Where can I find detailed drawings
The school library may be a good choice. Roland went there a lot when he was studying, and he never met the legendary encounter. He read a lot of books, including many related to the principles of mechanical design.
After dinner, he went to bed early.
Since wandering in another world is not 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 sleeping in the hot noon sun has become a delusion. He could only fall asleep early and use the energy saved by this part of the energy into his dreams.
Entering the dream, it is still a sunny midsummer morning.
There were more than ten missed calls on the mobile phone by the bedside. When I opened it, they were all from the second dealer, and the same was true in the text message box.
"Brother, do you still have armor there? I have a friend who just wants to stop filming. If there is any, please contact me immediately."
"The price can be set higher this time, how about seven hundred?"
"The swords have also increased by 200. That's interesting. But don't need to open the front. It looks very scary."
"If you're not satisfied with the price, we can still talk about it."
"Brother, can you answer me?"
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 new 1500 yuan was the living expenses from the Zero family.
This money is enough for him for a long time.
He tapped his fingers, deleted all text messages, put on short-sleeved shorts and walked into the living room.
At this 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 sat down at a powder shop in the alley.
"Boss, a bowl of shredded pork noodles, a large portion."
"Okay!"
Now that you have money, you have to enjoy yourself, right? You must know that this is a delicacy that even the king cannot enjoy. After all, there is no rice in Graycastle.
The hot vermicelli was quickly brought up, and Roland was eating breakfast while observing the apartment building opposite.
So far, the farthest distance he has traveled is the second-hand bookstore and small Internet cafe two blocks away. Since he is busy collecting money and memorizing materials, this is the first time he has spared and looked at the building of the soul from another angle. residents.