Chapter 130

The establishment of diplomatic relations between China and the United States and the cessation of the shelling of Kinmen are an exciting topic for Qi Jinsong. Others are commenting on the dishes on the table, but he keeps talking about his views on these two things, single analysis, joint deep excavation, vertical comparison and horizontal association.

Qin Wenbo sighed after eating a shrimp, "Jianhua, fried vegetables can only fry one-fifth of this in the future. Eat less and taste more, and don't listen to this guy's noise... Jinsong, if you didn't have so many dishes, you wouldn't be so calm? "

Long Jianhua asked Qi Jinsong, "you great poet, do you have any friends in other schools? Borrow a library card for me for a week at most. "

Qi Jinsong said quickly, "yes! Both Renda and Gongda have them. Where do you say to borrow them? "

Long Jianhua nodded, "it's from the University of technology. You're only half a month away from the holiday, and you have to prepare for the final exam, just so as not to delay others. "

Zhao Hongying asked, "since you want to read, your uncle has so many schools, just go there. Why do you have to go to other schools?"

Long Jianhua shook his head with a smile. "You can go to uncle's school at any time. Other schools are different. You can only go to see it at the end of the term, which doesn't affect others to borrow books."

Long Haojun took out a stack of paper from his clothes and handed it to him, "Jianhua, these are some ideas for me to improve the stainless steel production process. Please help me."

Long Jianhua then quickly read two pages and said with a smile, "OK, I happen to take the task to read."

Qi Jinsong looked at long Jianhua with wide eyes, turned to long Haojun, and then looked at long Jianhua, "Jianhua, do you even understand this?"

Long Jianhua chuckled, "who says I understand? Isn't this the task my uncle gave me? I happen to use my reading time to study these things. You can only study together, but I'm not allowed to study too? "

Qi Jinsong shook his head into a rattle. "It's not that you're not allowed to study, but that your study surprised me. My uncle is an associate professor. Alas, you have the courage to help your uncle with his research on the world's cutting-edge science... You're making a lot of money. "

Uncle and others laugh but don't speak. They are drinking and eating vegetables leisurely

After dinner, Qin Wenbo and Qi Jinsong went shopping. Junyan took Yuehua and Yuehe to her quadrangle to play. Zhao Hongying undertook the task of washing dishes. Only uncle and nephew long Jianhua sat on the sofa.

When long Jianhua finished reading the plan, long Haojun asked faintly, "how about it?"

Long Jianhua shook his head, "I don't know what the current production process is like, and I can't put forward any opinions on this... However, I have some ideas..."

In fact, when looking at this plan, a large number of stainless steel production processes and formulas emerged in his mind, but he couldn't say it in front of long Haojun.

Long Haojun rubbed his face and introduced the domestic stainless steel situation to him.

The foundation of domestic stainless steel industry is weak. Only special steel plants produce a small amount of stainless steel. Up to now, there are only 13 standards, including only 65 brands. Neither quantity, quality nor variety can meet the needs, and the scope of use is very limited.

In addition to the formula problem, the backward production technology is also a very important reason.

In 1968, the world's first AOD furnace (argon oxygen refining furnace) was built in the United States. The AOD furnace does not need vacuum, has the advantages of small equipment investment, simple operation and fast decarburization speed. It does not need pre decarburization in the electric furnace. In high carbon and low-cost nitrogen can be used to replace argon, further reducing the cost.

In the 1950s, China tried to refine liquid steel under atmospheric pressure, and developed DH method and Rh method with simple process; After introducing these two technologies, Japan developed the technology of blowing oxygen into vacuum tank, established the process of combining oxygen converter and RH-OB, and industrialized production in 1972;

In China, some have adopted ERU type furnace, and some are still using high-frequency induction furnace

After listening to the introduction, long Jianhua said with a smile, "uncle, since people have developed AOD furnace, why should we study AOD on the basis of VOD instead of AOD directly, or do research on this basis?"

Long Haojun stared at him, "you want to run without learning to walk. Aren't you afraid of wrestling?"

Long Jianhua said with a smile, "uncle, in fact, I have read a lot of books and periodicals during this period of time. AOD is generally mentioned in some basic journals. I calculated it. I feel that AOD is just like that... "

At this time, Zhao Hongying came in and said loudly, "Jianhua, can you help him. During this time, he was going crazy and often stayed up until two or three o'clock; Besides reading, I'm working on this plan. "

Long Jianhua smiled.

He knows that domestic technology has been blocked by others for too long, and so is stainless steel production.

In August 1968, two sets of 50 ton converter steelmaking equipment were introduced from osly; In March 1970, a complete set of cold-rolled stainless steel equipment was introduced from Germany. As for the production and refining technology, we have been relying on our own exploration in the past decade and have made little progress.

The domestic AOD furnace will not be put into operation until September 1983, and has only 18 tons of processing capacity, which has been left behind by others for more than ten years.

But with a man who can cut a beard, these things will catch up soon.

Long Jianhua took out a stack of papyrus and wrote it quickly. He soon wrote 16 pages, "uncle, this is what I thought of. Take a look."

Long Haojun took the papyrus and became more and more excited. His hands kept beating on the table.

"This is feasible!"

"That's wonderful!"

"Why didn't I think I could do that?"

"This view needs to be discussed, but there is nothing wrong in theory. You can try it!"

Zhao Hongying looked at the red faced long Haojun. Every time she wanted to pat him, but the hand she had just stretched out shrank back.

After reading long Jianhua's plan, long Haojun firmly grasped the papyrus, "Jianhua, you also mentioned a stainless steel formula later. Where did you get this?"

Long Jianhua said with a smile, "this 3Cr12 ferritic martensitic stainless steel was produced by Nanfei in the second half of the year before last. It is said to be the steel with the highest strength level, wear-resistant and corrosion-resistant, so I pushed it, but it's not necessarily right."

Zhao Hongying disagreed. "How can you do things overnight? It's good to have an idea. "

Long Haojun nodded again and again, "a new product is not so easy to get out. It's good to have ideas... I don't want to talk to you. I'll go back and straighten out my ideas and strive to enter the experimental stage as soon as possible... But it seems that you are already a complete test scheme, and there's no need for me to write it again..."

Then he stood up and patted on long Jianhua's shoulder, "Jianhua, the mass production of stainless steel by degassing with RH equipment after smelting in the top combined blowing converter, you think it's very clever!"

Zhao Hongying said with a smile, "can't you be lighter? Almost photographed Jianhua on the table. "

Long Haojun laughed, "he's trained in martial arts, anti shooting... Gone!"

Seeing more and more words from long Haojun, long Jianhua is also beautiful in his heart.

People change according to the environment. Long Haojun is the best example.

I didn't like to talk before because I was confined to my own small world; Now he talks too much because he has to command and coordinate, forcing him out.