When Yan Bugui came to find Jiang Yan, it was the tightest place in Sijiu City. The head of the first machine department and the big leader in charge of steel production came to the place together.

After layers of reporting, the reason why I have to bother so late is that the drawings and formulas I got today are really important and related to future development, so I must report it as soon as possible.

When the minister and the big leader of the First Aircraft Department completely recounted today's events.

I laughed out loud too. After laughing, he said to the two reporters: "It's this little guy again, it seems that our expectations for this little guy are still low, this little guy is not simple, I have heard a lot of news about him since he came back, almost everything this little guy did is earth-shattering, but it is also for the benefit of the country and the people, but it is estimated that our big housekeeper should have a headache again." ”

After saying this, he said it in the surprised look of the two people, "Comrade Jiang Yan, top two armored divisions" Such bold words.

It's just that Jiang Yan doesn't know this, if he knows, I'm afraid he will be so excited that he won't be able to sleep. Also shocked are the minister and the big leader of the first machine department, you must know that the experts who are studying apple trees now are praised by the top five divisions, Jiang Yan can top two divisions, doesn't that mean that someone has half the ability.

Hearing this evaluation, these two were also taken aback.

However, if you think about it carefully, don't talk about the rest, just talk about the oxygen blowing converter designed by Jiang Yan before. is also worthy of this sentence, not to mention what he will do next, one by one, everything is a huge attack, and even the two of them feel that Jiang Yan is not only worthy of two divisions, maybe more.

In particular, he also proposed the technology of manufacturing CNC machine tools, and a full set of drawings are already available, but these things have not yet been made, and if they are made, it is estimated that the evaluation is higher

And as a practitioner in the steel industry, they naturally know the benefits of increasing steel production, with the substantial increase in steel production, the country's industrial construction will obtain more adequate raw material security, a large number of high-quality steel can provide a solid material foundation for the machinery manufacturing industry, the production of various machine tools and equipment can expand rapidly, and there will be no longer a need to import raw materials from abroad, and you can rely on your own steel production for industrial construction.

Moreover, the rapid development of the steel industry will drive the progress of related upstream and downstream industries. In order to produce more steel, the mining industry has accelerated its extraction, the abundant coal resources have been converted into a source of power, and the transportation system has also needed to keep up with the growth of steel production, and a large number of transportation routes have been built to connect mines and steel mills.

In addition, a large number of technical personnel into the steel industry, to promote the progress and application of advanced technology, the wide application of steel will make the country's infrastructure to a new level. It can be said that the steel industry provides a solid material foundation for the industrialization of the country.

Sufficient high-quality steel is like a shot in the arm, which will double the vitality of the entire national economy, and the employment opportunities brought by it can also enable more people to put into production.

This is why the steel industry is known as the backbone of industry.

Therefore, the oxygen blowing converter that Jiang Yan made before is a matter of merit in the present and benefit in the future.

After reading the properties of these two special alloys written by Jiang Yan, the commander pondered for a while, "Have these two formulas been verified by experts, and can they be put into production immediately after the demonstration!"

The two alloy formulas provided by Jiang Yan are corrosion-resistant, which is more suitable for warship manufacturing, and the other is low-alloy ultra-high-strength steel.

The low-alloy ultra-high-strength steel studied by Jiang Yan is derived from the 4340 steel of Eagle Sauce, which can be said to be the earliest low-alloy ultra-high-strength steel and a typical representative of low-alloy ultra-high-strength steel.

Eagle sauce began to study 4340 steel from the mid-40s of the 20th century, and the tensile strength of the steel reached 1600~1900MPa by reducing the tempering temperature. In 1955, 4340 steel began to be used in the landing gear of F-104 aircraft. Through quenching and low-temperature tempering, AISI 4130, 4140, 4330 or 4340 steels can all have tensile strength of more than 1500MPa, and the notched impact toughness is high.

In order to suppress the tempering brittleness of low-alloy ultra-high-strength steels, the International Nickel Corporation of the United States developed 300M steel in 1952. The steel increases the tempering temperature (260~315°C) by adding 1~2% silicon, and inhibits martensitic tempering brittleness. After 1966, 300M steel has been widely used as a landing gear material for military aircraft and major civil aircraft in the United States, F-15, F-16, DC-10, MD-11 and other military fighters have used 300M steel, in addition to the landing gear of civil aircraft such as Boeing 747 and the flap slide rails and slit pipes of Boeing 767 aircraft wings are also made of 300M steel.

Therefore, Jiang Yan's low-alloy ultra-high-strength steel can not only be used in aviation, but also has a good application for fighter jets. With it, the country can design a better fighter.

This is also the reason why the commander saw that this alloy steel reacted so much, because this steel is too important, and it is simply an amplifier of combat power.

"The specific operation, you two must keep it absolutely secret! If it can be put into production, it will start immediately, and everything will be coordinated by the state."

After saying this, the commander looked at them solemnly, "Don't reveal a little bit of news to any outsiders, and those who know must sign the highest level of confidentiality agreement!"

"Obey the chief!" The two stood upright and immediately expressed their obedience.

"So. How should Jiang Yan's security be handled?" The big leader asked tentatively.

"There are already people around him, and it is said that this little guy's own martial arts are also good, but this most dangerous place is the safest place. However, you must keep it a secret as to who developed it, and all those who know it will be monitored, but he also needs to strengthen secret surveillance to prevent accidents. ”

Both of them breathed a sigh of relief after hearing this, and nodded their heads in agreement.

"This child's reward can't be less, it was to protect her before, plus he is relatively young, so there is no reward for credit, but these things are recorded, and the specific reward is still to ask the opinion of the big housekeeper, which is why I said that the big housekeeper has a headache." The commander laughed when he finished speaking.

"But there must be a reward, you two tell the big housekeeper that the reward for this little guy should come step by step, don't be too abrupt and eye-catching, low-key promotion is the best policy, this time let's first mention a first-class merit internally!"

After listening to the commander's words, the two looked at each other, thinking in their hearts that the commander's dispatch was really well considered.

"Regarding this project, the two of you must personally dock." The commander-in-chief's tone was very serious, "This is a major project related to the country's industrial progress, and the investment can be reported to me at any time, and you must not give up halfway!"

"Yes! We will do our best to complete our mission!" The expressions of the two were solemn and determined.

"Very well, I'm sure you'll be able to do it. Go ahead, time waits for no one!"

The commander nodded in satisfaction, his gaze determined.

"Thank you for the commander's teaching, let's go and prepare!" The two saluted again and exited the room in good spirits.

Walking out of the room, the two walked forward quickly, their faces filled with joy and a sense of mission.

After returning to the First Aircraft Department, the minister and the big leader discussed the specific project progress and plan, and then started to act non-stop.

Jiang Yan didn't know anything about this.

(End of chapter)