doomsday survival

Chapter 285 Foundry Workshop

Shi Jian majored in mechanical design and knew very well about mechanical processing. As soon as he heard what Feng Kuang said, he knew that it was not a steelmaking furnace at all, but a casting furnace in a processing factory.

Mechanical processing is divided into cold processing and thermal processing. We often say lathes, milling machines, stamping machines, etc. are used for cold processing, while heat treatment, casting, and welding are of course the means of thermal processing.

The foundry furnace in front of him is a cupola. Shi Jian had seen it during his internship in the factory, but he hadn't studied it. After all, he majored in mechanical design, not metallurgy.

Shi Jian looked at the cupola and said to Feng Kuang: "Old Feng, do you think we are lucky or unlucky?"

Feng Kuang asked puzzledly: "How should I say this?"

Shi Jian said: "Fortunately, we now have equipment that can smelt metals, but he can only cast cast iron, at most he can smelt copper. If it's steel, it's really not good."

The electric arc furnace in that steelmaking factory is different, but it is called a steelmaking furnace by Fengkuang. The foundry furnace cannot make steel, because the foundry furnace is mainly used to smelt cast iron, and the temperature cannot reach the standard for steelmaking. This is not achieved by heating alone, but it is designed so that the furnace walls cannot withstand such high temperatures.

How did Feng Kuang know about this? He had built a blast furnace for steelmaking before, but he really didn't know about it.

"I can't make steel." Feng Kuang said regretfully.

Shi Jian chuckled and said, "Actually, cast iron is also good. We can smelt pearlitic cast iron. Its strength and hardness are no worse than steel, and its casting performance, vibration damping performance, wear resistance performance, and cutting performance are all better than steel."

Feng Kuang heard what Shi Jian said clearly and logically, so he asked, "Can you practice?"

Shi Jian shook his head and said, "I only studied mechanical design, not metallurgy. How could I do this?"

Feng Kuang said contemptuously: "I think you can speak better than you can sing. I thought you understood, but who knows that you don't know anything."

"Although we don't understand, we have a magic weapon to protect us, so we don't have much difference from understanding. What we lack is practical experience." Shi Jian said nonchalantly.

Feng Kuang thought for a while, and then remembered what the magic weapon Shi Jian was talking about was his mobile phone that stored a lot of data, and he couldn't help laughing: "What do you think you are doing with so much data, it looks like an encyclopedia Yes." Then he lowered his voice and said, "Didn't you already know that you were going to cross?"

Shi Jian rolled his eyes at him, and complained: "If I want to know, I just bring a notebook, how much data can be stored in it, and bring a solar battery by the way, so I don't need to look for power everywhere."

"That's true. Is it really for writing novels as you said?" Feng Kuang asked.

Shi Jian nodded and said, "Indeed. However, many things in it are relatively simple, and they are not really useful. They can only be used as a reference, and we need to explore the details in practice."

Feng Kuang complained: "Why don't you prepare in detail, how can you be so irresponsible when writing a novel, you have to explain everything clearly."

Shi Jian said with a bitter face: "Master Feng, I'm writing a novel, not an expository text. You won't let me use a whole chapter to explain the difference between cast iron and steel, right? Then I won't be sprayed to death by readers." ?”

Feng Kuang snorted and said, "Whether I spray or die has something to do with me? I just want you to bring more information, so that we won't be ignorant."

Shi Jian closed his eyes, took two deep breaths, tried his best not to be fainted by Feng Kuang, and then said: "It's not like nothing, all the key technical points are inside, so we are not blind .Besides, you have also made steel, so you understand most things, don't you?"

"Don't mention it," Feng Kuang waved his hand and said mockingly, "What kind of steel did I make? I haven't produced any steel since it was built. But then again, although I don't know how this steel can be made. out, but I absolutely know how to make no steel."

Shi Jian was amused by Feng Kuang's words, and said: "Failure is the mother of success. If we know why we can't make it, we will be half successful. Moreover, it seems that this cupola and peace furnace can also make steel."

After all, it's really hard to say whether this cupola will work well, and it must be carefully checked.

Although Shi Jian didn't understand these things, his major was closer to that of Feng Kuang, who majored in chemistry, so he had no choice but to bite the bullet and go into battle.

With the level of Shi Jian's two knives, that is to say, he can see roughly whether it will work or not, and he doesn't have much confidence.However, in his opinion, the cupola is well preserved and should be able to be put into use.

The outer casing of the cupola is made of steel, and because it has to withstand high temperatures, special steel is used. Although it can also rust, the rust layer is not thick, only a thin layer.The refractory material used in the furnace looks very intact, and there is no excess slag inside.

It's not that this cupola is brand new. The scene at the scene should be that the workers had no intention of producing at that time, and scattered away after emptying the last furnace of molten iron.

The cooling fan was still able to run after it was powered on, but there was too much dust accumulated in it and the lubricating oil had dried up long ago, so the fan blades turned very jerky. Shi Jian cleaned it up and added some mechanical oil, and there was no problem.

Shi Jian patted the dust on his hands, and said to Feng Kuang: "It seems that there should be nothing wrong, why don't we try?"

Feng Kuang nodded and said, "Just try it, but let's talk about repairing this working ladder first, otherwise, it will be too dangerous."

What Feng Kuang said is correct, the only fly in the ointment of this cupola is that the working ladder is no longer usable.But this is just a harmless matter, and it can be solved completely. Just find some steel that is still usable and re-weld it, and electric welding can be found in electric welding workshops.

Not only is there a lot of steel in the steelmaking plant, but there are also all kinds of steel in these four machinery processing plants, and there is no shortage of raw materials.There are many electric welding machines in the electric welding workshop, and it is not difficult to pick out the ones that can be used, and there are even more welding rods. Whether it is an acidic welding rod that is resistant to moisture or an alkaline welding rod that must be baked between each use, there is a big difference. inventory.

Shi Jian has also fiddled with electric welding a few times. Although he is not skilled in operation, he basically knows the matters that should be paid attention to. He puts on the protective clothing, holds the protective goggles in one hand, and picks up the electric welding in the other and immerses himself in the work.

　Ask for a monthly pass!

　　
　
(End of this chapter)