Bright Sword Military System

Chapter 32
Everyone looked at each other, including Su Xin and Zhang Wanhe, who were greatly surprised.

After a long time, the hardware said: "Is it that simple?"

It is no wonder that they do not believe that this German technology, which is said to be so high, is actually buried in iron ore and burned for a few days.

Then, naturally, they began to doubt the authenticity.

Zhang Ruozhong, the director of the sand foundry plant, said dubiously, "If that's the case, we should have discovered it long ago! It's not like we can't make cannonballs all the time!"

Hardware replied: "It can't be that simple, something must have gone wrong."

Zhang Wanhe frowned and asked Wang Xuexin, "Comrade Wang Xuexin, did you forget something?"

Wang Xuexin continued to pretend to be confused: "Then I don't know."

Su Xin, who had been silent for a while, suddenly seemed to think of something: "I see, Comrade Wang Xuexin may be right, and he may have done it. It's just much more complicated and difficult than we thought."

This time, the big guy was even more confused.

Only Wang Xuexin secretly said something powerful in his heart.

As the so-called "experts watch the door, laymen watch the fun", Wang Xuexin knew from the systematic information that this seemingly simple operation actually has many knowledge and difficulties.

Others didn't see it, but this little girl saw it.

Zhang Wanhe asked inexplicably, "Comrade Xiao Su, take your time. If you really do this, how can it be complicated and difficult?"

Su Xin explained:
"Director, the reason why our white pig iron is hard, brittle and lacks toughness is because it contains too much carbon."

"Since the carbon content is high, the carbon in the iron must be precipitated."

"How do you get this carbon out?"

"Buried white pig iron in iron ore and heated, the iron ore will continuously release a small amount of oxygen during the heating process."

"These oxygen react with the carbon in the white pig iron to form carbon monoxide and carbon dioxide, so the carbon content is reduced to achieve the purpose of toughening!"

Others were confused, even Zhang Wanhe was no exception.

Only Wang Xuexin nodded secretly, this girl did have two brushes, and she said it exactly as if she saw the answer.

Su Xin sensitively noticed that Wang Xuexin's expression was wrong, and everyone else was confused, but he was relaxed and calm, as if he had known this for a long time.

But on second thought, I felt that this might be my own delusion.

This expression... Maybe I can't understand it at all!

After a while, Zhang Wanhe asked again, "Comrade Su Xin, according to what you said, this method is really feasible?"

Su Xin nodded: "Although I'm not sure, but most likely it will work. Even if it doesn't work, it's okay to try."

"Then... why do you say that it is much more difficult and complicated than we thought?" Zhang Wanhe is a veteran, and he knows that the more important thing may be the details.

Su Xin explained:
"I think the focus of this technology is on temperature control."

"We need a high enough temperature for the carbon in the white pig iron to react with the oxygen."

"But if the temperature is too high, the white pig iron and the iron ore will all be melted and mixed together, and the meaning of toughening will be lost."

"So, we need to find a suitable temperature and control the temperature within this range."

"This is one of the difficulties!"

After hearing this, everyone suddenly realized.

Without measuring instruments and equipment, even the temperature is not known, let alone controlled.

Su Xin went on to say:

"In addition, there are many impurities in iron ore. These impurities have different melting points. They are likely to react with white pig iron during the heating process and cause a series of problems."

"So I guess that the iron ore used by the little devil is some kind of treatment to remove impurities before it is used for toughening."

"That's another difficulty."

Su Xin's remarks made Wang Xuexin want to ask the system to refund the money. It was exactly the same.

But having said that, if it wasn't for the information given by the system as a reminder, Su Xin wouldn't be able to push these things out.

Besides, there are two very important issues for Su Xin: one is temperature and the other is impurities.

These two questions seem simple, but they require long-term experiments.

For example, temperature... If you don't know which temperature is suitable, you have to test it by one degree and one degree. Then when will it be tested?
Forget it, let’s shake it all out, and whether they doubt it or not, it’s better than trying it out for a year and a half!

Thinking about it, Wang Xuexin interjected: "I remembered what Comrade Su Xin said. Sometimes the Guizi ore is not ready to be rectified, so I just bury the shells in the cleaned sand and burn it..."

"Sand!" Before Wang Xuexin could finish speaking, Su Xin's eyes widened and she nodded again and again: "That's right, sand may also work. Why didn't I think of it!"

"Is this really possible?" Zhang Wanhe couldn't believe it.

"Eighty percent of the time!" Su Xin explained: "The main component of sand is silicon dioxide, and its melting point is just higher than that of iron. Even if iron is melted, it will not melt, which means that there are not too many impurities. Mixed into white pig iron. It's just that the toughening effect is probably not as good as the purified iron ore."

Everyone, look at me, I look at you, but there is no sound.

After a long while, Zhang Ruozhong said, "So, the temperature is all that's left."

Then he turned his attention to Wang Xuexin and asked, "Comrade Wang Xuexin, don't you just remember the temperature?"

"How can it be!" Wang Xuexin laughed awkwardly: "I'm just a rude person, I don't know the temperature, I only know that they shout numbers all day long..."

Everyone was so surprised that their jaws almost dropped.

"What number?" Su Xin asked.

"For example, one hundred, two hundred, two hundred and three..." Wang Xuexin said, "It's like selling pork, is this useful?"

"Useful and useful!" Everyone gathered together, nodding their heads like pounding garlic.

Zhang Wanhe asked nervously, "Comrade Wang Xuexin, do you remember how many kilograms of pork they sell at most?"

"I can't remember clearly!" Wang Xuexin put on a embarrassed expression: "Anyway, every time I shouted to more than 900, I stopped shouting!"

"More than 900!"

"Write it down!"

"More than 900, how much more? This end or that end?"

Wang Xuexin replied: "It should be this one. If it exceeds [-], the little devil will start to get nervous. I just wondered, this is because there is not enough pork to sell?"

Su Xin couldn't help laughing out loud. She couldn't imagine how the technical workers of Guizi Arsenal were shouting and selling pork.

Others couldn't help but laugh, but they didn't dare to be careless:
"Nine hundred and five!"

"It should be within nine hundred and five!"

"Let's try tomorrow..."

"What tomorrow!" Zhang Wanhe stood up with a "Teng" sound: "Try it now, give me a few shell casings right away... No, come out in dozens, and burn them in different batches!"

"Yes!" The directors of each branch responded and left as if putting out a fire.

Zhang Wanhe held Wang Xuexin's hand tightly and said:
"Comrade Wang Xuexin, if this can be done, you will be a big help!"

"Do you know how much difficulty this iron problem has brought us?"

"We guerrillas still have to fight with their lives to scrape the rails, if only we can produce qualified steel by ourselves."

"This...this is really good!"

Speaking of which, even Zhang Wanhe couldn't think of a word.

(End of this chapter)