Everyone looked at each other, including Su Xin and Zhang Wanhe, who were all surprised outside.
After a long time, Hardware finally said: "Is it that simple?"
No wonder they don't believe that the German technology that is said to be so superior can actually be buried in iron ore and burned for a few days.
Then, they naturally began to doubt the authenticity.
Zhang Ruozhong, director of the sand foundry, said dubiously: "If that was the case, they should have discovered it long ago! They wouldn't have been unable to make cannonballs!"
Wu Jin continued: "It can't be that simple. Something must have gone wrong."
Zhang Wanhe frowned and asked Wang Xuexin: "Comrade Wang Xuexin, have I forgotten something?"
Wang Xuexin continued to pretend to be confused: "Then I don't know."
Su Xin, who had been silent all this time, suddenly seemed to have thought of something: "He is aware that what Comrade Wang Xuexin said may be right, but he did indeed do that. It's just that it's much more complicated and difficult than they thought."
"
Then everyone was even more confused.
Wang Xuexin secretly said something powerful in his heart.
As the saying goes, "A layman sees the door, a layman sees the excitement." Wang Xuexin, based on the traditional information, knows that the seemingly simple operation actually involves many knowledge and difficulties.
Others didn't see it, but that little girl did.
Zhang Wanhe asked in confusion: "Comrade Xiao Su, let me speak slowly. Then how can it be complicated and difficult to ask if you really do that?"
Su Xin explained:
"Director, the reason why our red pig iron is hard, brittle and lacks toughness is because it contains too much carbon."
"Since the carbon content is high, we need to precipitate the carbon in the iron."
"How to precipitate those carbons?"
"Bury red pig iron in iron ore and heat it. The iron ore will continuously release a small amount of oxygen during the heating process."
"The oxygen reacts with the carbon in the red pig iron to produce carbon monoxide and carbon dioxide, otherwise the carbon content will be reduced to achieve the purpose of toughening!"
Others were confused when they heard this, even Zhang Wanhe was no exception.
Wang Xuexin nodded secretly, that girl did have two brushes, and what she said was as accurate as if she saw the answer.
Su Xin sensitively noticed that Wang Xuexin had a good expression. They all looked confused, but he was relaxed and calm, as if he had known about it for a long time.
After thinking about it for a while, I wondered if it was my illusion.
That expression... I'm not sure I can understand it at all!
After a while, Zhang Wanhe asked again: "Comrade Su Xin, according to what I said, that method is indeed feasible?"
Su Xin nodded: "Although he is very unsure, it is probably feasible. Even if it doesn't work, there is nothing wrong with trying it."
"Then... why do you say it is much more difficult and complicated than they imagined?" Zhang Wanhe is an old man, he knows the truth behind the more serious question.
Su Xin explained:
"He believed that the focus of that technology was temperature control."
"They need a high enough temperature to react the carbon and oxygen in the pig iron."
"But if the temperature is too high, the red pig iron and iron ore will all melt and mix together, and the meaning of toughening will be lost."
"So, they need to find a suitable temperature and control the temperature outside of that range."
"That's one of the difficulties!"
After hearing this, everyone suddenly realized.
Without measuring instruments and equipment, even the temperature cannot be known, let alone controlled.
Su Xin continued:
"In addition, there are many impurities in iron ore, and those impurities have different melting points. They may react with the red pig iron during the heating process to cause a series of problems."
"Therefore, he speculated whether the iron ore used by the little devil had been treated in some way to remove impurities before being used for toughening."
"That's another difficulty."
Su Xin's words made Wang Xuexin want to ask the system for a refund. They were exactly the same.
Having said that, Su Xin couldn't push out those things even if the information provided by the system was such a reminder.
What's more, there are two very important questions for Su Xin: one is about temperature, and the other is about impurities.
Those two questions seem simple, but they require long-term experiments.
For example, temperature... Then if you don't know which temperature is suitable, you have to test it once and for a while. How long do you need to test it?
Forget it, let’s just reveal it all. No matter if they will doubt it or not, it’s better than trying it for a year and a half!
Thinking about it, Wang Xuexin interjected: "When Comrade Su Xin said that, he remembered that sometimes the enemy's ore did not have time to clean up, so they simply buried the shells in the cleaned Shanxuan and burned it..."
"Shanxuan!" Before Wang Xuexin finished speaking, Su Xin opened her eyes and nodded repeatedly: "You're right, maybe Shanxuan can do it too. Why didn't he think of it!"
"Is that really feasible?" Zhang Wanhe was a little unbelievable.
"Eighty percent feasible!" Su Xin explained: "Shanxuan asked for the ingredient to be silica. Its melting point is just higher than iron. Even if iron is melted, it will not melt, which means there are not too many impurities.
It will be mixed into red pig iron, so the toughening effect may not be as good as that of purified iron ore."
Everyone looked at each other, but no one made a sound.
It took a long while before Zhang Ruozhong said: "Then the only one left is Dongwen."
Then he turned his attention to Wang Xuexin and asked: "Comrade Wang Xuexin, I don't happen to remember the temperature, right?"
"What the hell!" Wang Xuexin laughed awkwardly: "He is just a rough guy. He doesn't know what the temperature is. He just knows that they shout numbers all day long..."
Everyone was so surprised that Dongba almost fell to Donglai.
"What number?" Su Xin asked.
"For example, one hundred, two hundred, two hundred and three..." Wang Xuexin said: "It's like selling pork. Is that useful?"
"It's useful!" Everyone gathered together and nodded like they were pounding garlic.
Zhang Wanhe asked nervously: "Comrade Wang Xuexin, do you remember the maximum number of kilograms of pork they sell?"
"I can't remember exactly!" Wang Xuexin put on an embarrassed expression: "Anyway, I stopped shouting every time if I shouted more than 900!"
"More than nine hundred!"
"Hurry up and come to the east!"
"More than nine hundred, how much more? Which end is that?"
Wang Xuexin replied: "Should we be on the other side? If the demand exceeds 950, the little devils will start to get nervous. I was wondering, is the pork belly sold?"
Su Xin couldn't help but laugh out loud. She couldn't imagine the technicians in the Japanese arsenal shouting and selling pork.
Others could not help laughing, but they laughed and did not dare to be careless:
"Nine hundred and five!"
"Should it be more than nine hundred and five?"
"Let's try tomorrow..."
"What tomorrow!" Zhang Wanhe stood up with a "Teng" sound: "Try now, I'm going to make him a few shell casings... No, make dozens of them, and burn them in different batches!
"
"No!" The directors of each branch responded, and Dangdong left as if putting out a fire.
Zhang Wanhe held Wang Xuexin's leg tightly and said with emotion:
"Comrade Wang Xuexin, if your request can be granted, I will be a big help!"
"Do I know how much difficulty that ironclad problem brings to us?"
"We guerrillas have to risk our lives to dig up the railroad tracks, so I wonder if we can produce qualified steel ourselves."