I! Pretending to Be Reborn, Director of Doomsday Hoax

Wo Chengwen was horrified.

Studying a steel type, how can it be connected with the Taiji diagram of Longguo.

The culture of the Dragon Kingdom... actually contains so many philosophies and all-encompassing wisdom? !

He was amazed when he looked at the dozens of interrelationship diagrams in the draft book, including the interaction formulas of various elements such as nitrogen, oxygen, silicon, sulfur, carbon, iron, and manganese.

"All the engineers in the group, please come, it's time to reveal the true face of the extremely cold steel."

"The time Director Xu gave us is half a month, and the final handover time must be on the fifth of next month, which is August [-]th."

"However, as far as I know, every project in the Dragon Kingdom needs a kind of steel that can maintain its performance in extreme cold without freezing and cracking."

"The successful development of the bainitic subspecies of extremely cold steel will not only provide rail support for nuclear-powered trains, but also... it will be the star of the future, the era of extreme cold!"

Ten minutes later, Wang Xinke, chairman of the Capital Iron and Steel Group, received the news and ran out of the laboratory, ignoring the sweat all over his body, and ran to the conference room.The former Longguo Iron and Steel Master, a special engineer of the space agency, has been the chairman of the Capital Iron and Steel Group since he stepped down from the front line, leading the company forward.

This time, he was ordered by the crisis bureau, so he couldn't hold back the excitement in his heart, so he went out in person and put on his safety work clothes.

At this moment, his hair was still wet, obviously he had just retired from the front line of production.

Many engineers were embarrassed, but their faces were full of joy and expectation without exception.

After everyone arrived, He Yude didn't hold back, and directly projected the contents of the draft on the big screen.

Everyone is an expert in the industry, and most of them have been studying extremely cold steel. Therefore, seeing the function diagram and formula above, they can understand it at once.

Wang Xinke looked at the complicated model calculation above in astonishment, his expression became more and more pleasantly surprised and enthusiastic!

He Yude's voice pulled everyone's thoughts back from the projected draft.

"Using the results of statistical analysis, and through multiple optimizations by Xiaowo and I, we have solved the problem of optimizing the chemical composition of rails for minimum extreme cold reliability."

"In the Daji experiment, only our 107 furnaces met the requirements, and the average impact toughness of these furnaces was 0.27MJ per square meter, and the impact toughness of some steel types even reached 0.34MJ per square meter." "According to a large number Based on the data detection, we propose a new production ratio and process for extremely cold steel rails.”

"For example, in the quenching treatment and oil quenching, the heating temperature of the rail is reduced by + degrees Celsius, and the temperature of the rail is increased by + degrees Celsius in the tempering furnace in the range of three to + degrees Celsius, which can stabilize the appraisal performance of the extremely cold reliability rail and expand the stability of cold resistance About 15.00% or so!〃

"At the same time, we found that under the condition that the nitrogen content is not less than [-]%, it is important to increase the cold brightness of the steel rail to [-]% to [-]%. the meaning of

It has remarkable effect on the improvement of impact toughness, hardness and strength! "

"In addition, we still face many problems. For example, in the process, the interaction and influence of aluminum, aluminide, oxygen and nitrogen, how to coordinate and choose..." He Yude went deeper and deeper.

But everyone's eyes are getting brighter and brighter!

They feel that the successful development of the extremely cold steel rail seems to be right in front of them!

After He Yude finished expressing his summary and opinions, Wang Xinke stood up excitedly.

"The aluminum you mentioned will increase the positive effect of nitrogen, but at the same time it will aggravate the problem of oxygen damage to the hardness of steel. I think we can adopt a new process."

"I have participated in the development of low-alloy cast steel for oil drilling rigs before. The mechanical properties are equivalent to the patented steel made of ZGD535-720."

"And this kind of steel also requires a high minimum yield strength, and also needs to maintain high impact toughness at low temperatures..."

"And because it is the main load-carrying part of an oil drilling rig, it has higher requirements for impact toughness, which fully reaches 42MJ, which is about two hundred times that of the extremely cold steel rail!!"

"At that time, our low-alloy cast steel had unqualified performance under low-temperature impact. After investigation, it was found that the heat treatment process could not keep up."

"In the end, we optimized the heat treatment process to solve the problem of low temperature performance..."

Wang Xinke's eyes were full of memories.

At that time, he was still working on the front line, and manufactured a variety of steels with different characteristics for the country, various enterprises and companies.

After the low-temperature steel casting of the oil drilling rig that time, he and several colleagues also published papers on it, which made them famous internationally.

And the research results of that time are still playing a role today.

Wang Xinke said excitedly: "For the same material, it is mainly the difference in alloy content that leads to the difference in the final structure state, which in turn affects the mechanical properties..."

"Manganese elements tend to promote the growth of bainite grains at high temperatures, while molybdenum can inhibit the growth of bainite grains at high temperatures...Our alloy has a small amount of clamp elements, which can be eliminated. "

"We can improve the annealing process. After the same quenching and tempering process, the damping performance of bainite steel at the strain amplitude can be improved!"

"For example, use a hierarchical annealing process!"

"Secondly, in the cooling process, let the cooling medium flow fully, control the initial temperature and final temperature of the cooling liquid, so that the bainitic steel has a good hardening depth, and avoid the local high temperature of the medium, which reduces its cooling performance. affect the final quenching quality of the material”

"According to this statement, then, the reason for the collapse of some bainite steels is likely to be that their hardening depth is not well grasped!"

At this moment, the eyes of He Yude, Wo Chengwen and others brightened!

After Xu Qiu created the pouring system, many problems of the bainitic steel subspecies were solved. Steel and mechanical experts worked all night to develop the bainitic steel subspecies, and finally advanced the bainitic steel subspecies to the present.

But in the last few generations, bainite steel can initially resist the extreme cold of minus two hundred degrees, but none of them can survive the second round of tests.Pretty much disposable steel.

It took them several generations to improve, and there was no way to improve this problem.

But now... there seems to be a way out! !

Wang Xinke stood up, waved his big hand, and said excitedly: "Comrades, hurry up!!"

"It is only one step away from the birth of extremely cold steel, and we, under the leadership of Director Xu, will personally create this legendary steel!!"

"it is good!"

"Develop extreme cold steel at any cost!"

"Success is within reach!"

Warm slogans came from the meeting room.

A few minutes later, He Yude, Wo Chengwen, Wang Xinke and others plunged into the production workshop. The fiery red molten steel illuminated their old faces

Qinghua Garden, Dangerous Information Bureau Building.

Lu Guangyuan knocked on the door and said respectfully: "Director Xu, the population of the South has been counted, and all numbers have been issued. There are a total of more than 50.00 million people, accounting for 1.075% of the national population!" "The ratio of male to female is 1.001 to [-]."

“零到14岁人口占比点六。十五到59岁的人口占70.00%点一，60岁及以上的人口占比13.00%点三。其中65岁以及以上的 人口占比百分之八点八七......”

"Among them, there are [-] counties with more than one million people who need to relocate, mainly in southeastern developing areas such as Guangdong!"

"The main population migration cities include Pengcheng in Canton..."

Xu Qiu nodded and listened to Lu Guangyuan's report.

At present, the South has completed the population statistics, and according to the ID card, an exclusive number has been issued on an individual basis.

The actual area of ​​the southern region accounts for about 80.00% of the country, while the population is 50.00%.

Now, it needs to use only 20.00% of the land area of ​​Longguo to accommodate 15 billion people...

In anyone's eyes, this is an impossible thing to achieve.

However.…

Long Guo has never been afraid of these things.

During the Little Ice Age, the sub-zero cold would turn areas without thermal insulation measures into no-man’s land, and compared to the threat of death, just huddling together was nothing.

"Guangyuan."

Xu Qiu's eyes were deep, and he was planning every next step.

"Director Xu, let's issue an order, all the dungeon construction personnel are waiting!" Lu Guangyuan bowed his head respectfully.

"Let's get started, the construction of temporary structures across the country."

This plain sentence came out of Xu Qiu's mouth.

However, everyone present was extremely serious. These words will affect the form and actions of Dragon Kingdom in the next two months.

Ten minutes later, a piece of heavy news was announced again from the official website of the Crisis Bureau!

[Dragon Kingdom Strategic Crisis Bureau Order]: From now on, one-tenth of the people from the construction of underground cities in various places will rush to the planned residential areas in the north to build temporary houses.

As soon as the news came out, the whole country shook!

Officials everywhere responded.

[Headquarters of the Underground City Construction Department of Hunan Province]: In response to the order of the Emergency Bureau, all the underground cities in our province have dispatched personnel to the residential areas in the north overnight to assist in the construction of temporary housing!

[Headquarters of Tiandu Dungeon Construction Department]: Tiandu is grateful to the workers and volunteers from all over the world for their assistance.We will also do our best to build the underground city and build temporary houses at the same time!

[Sichuan Province Dungeon Construction Department]: Get ready, all dungeon builders, obey the command of the Emergency Bureau, and rush to the north at any time!

On Huhu, Scarf, and Little Green Book, the discussions among netizens are becoming more and more popular, and people can't hide their excitement.

[Curiosity killed the cat]: "I just came back from the ecological greenhouse, and I just wanted to share with you the joy of today's hard work, when I saw this news!"

"Oh my god, the country is going to build temporary housing, and before us, the south has conducted a population census. Could it be...they plan to move the entire population of the country to the north?!"

[Land War Cavalry]: "This is so shocking! I just checked the information, and the land area in the north is only 20.00% of the whole country, and there are still a lot of areas that are difficult to adapt to, such as plateaus, deserts, etc., and various grasslands!"

"That is to say, in our country, in the current residential areas of the city, we will forcibly develop temporary housing that can accommodate [-] million more people. This is an incredible project!"

[Sister-in-law who ran away from the Jiangnan Tannery Factory]: "I only have two words to describe it: Shocking! [-] million people, more than half of the country's population, are relocated. How can this be done! How can this be done!"

"But we have really put it into practice. This is our Dragon Country, a country that is either creating miracles or is on the way to create miracles!"

At the same time, the construction of underground cities all over the country began to change.

In the south, in the No. 31 underground city of Canton.

Li Chunfeng chewed the grass roots, followed the other people who were selected, and rushed to the train station near the No. 31 underground city, preparing to go to the northern region for assistance.

"Li Chunfeng, are you a horse? Don't keep chewing on your grass roots, okay?" the worker scolded with a smile, urging him to walk faster.

Li Chunfeng curled his lips and said, "You don't understand. After the sun goes out, these things may be gone. These grasses have the smell of the sun."

"Fuck you, mother, with Director Xu here, even if we live in the dungeon, we don't have to worry about it! We have artificial light sources, and those plants can survive even without sunlight!" Li Chunfeng rolled his eyes, no Never mind.

He raised his neck and looked forward. The people at the front of the line had already entered the train station. People entered the high-speed rail in an orderly manner. Everyone's face was filled with pride and excitement.

Li Chunfeng said with a smile: "This is the first time I take a free high-speed rail!"

The workers were also a little excited, "This time we are going to Sanjianghe City in the three eastern provinces. Damn, I have long wanted to see what Shuguang City looks like. Their double-storey dungeon is said to be unique in the whole country! "When we finish building the temporary housing, let's go to the Shuguang City construction area to take a look!"

Li Chunfeng said: "Don't worry. The country asked us to build temporary housing this time to avoid the Little Ice Age two months later!"

"When we finish building the temporary residence, the Little Ice Age will probably come. At that time, we will definitely not have to go back, and we will probably stay in Sanjianghe City to avoid the cold!" "At that time, we will have the opportunity to visit Shuguang City!"

"Maybe, we can still enter the double-layered dungeon of Dawn City and become the construction staff!"

Hearing this, the people around also showed expressions of excitement.

"Workers brothers have worked hard, thank you for supporting the North!"