This is not the first time that military representatives from the naval base have visited Jianggang, and they have been here several times before.

As of 1987, the 051 ship has been in service with a lot, among which the Dalian and Kaifeng built by the Dalian shipyard are in service with the Northern Fleet.

The comrades of the Iron and Steel Research Institute are no strangers to warships, and some comrades are also civilian military experts, and if they give him a destroyer, he claims to be able to liberate the whole world.

The arrival of Senior Colonel Yu has set off a heated discussion at the Iron and Steel Research Institute, and the military representatives have come to Jianggang again, and this secret is difficult to keep.

But the more advanced secrets can only be accessed by entering the group.

Not only scientific and technological personnel are keen on the research and development of military steel, but even the workers in the production workshop are also keen on smelting military steel.

Do a good job in military steel, and take credit. Everybody knows that.

The bigwigs, middle-wielders, and junksters of the warship steel plate research group have been determined, and many workers are eager to join the group, serve the country, and escort the soldiers.

"From 051 to 055, this span is too big, although we Jianggang have made the steel plate, but other aspects can't keep up. I think it will be difficult for 055 to resume work in the short term, and this short-term is at least 3 years, and maybe even more than ten or twenty years. "Ma Hanxing is a military expert, and his analysis is the Tao.

"Ten or twenty years, what kind of work is there to revert to, and directly develop the next generation of warships. "Zhou Tienan also knows military affairs.

Ma Hanxing asked curiously: "Xiao Zhao, you participated in the military representative meeting, what kind of warship do you want to serve the new military steel?"

Zhao Qingshan said mysteriously: "From the analysis of limited information, the new military steel should serve surface ships. ”

Zhou Tienan glanced at Zhao Qingshan: "You still need to say this, can you be specific?"

Zhao Qingshan spread his hands and said: "I know as much information as you, I just listened to the meeting, and I didn't join the group." ”

The three stinkers have not yet joined the group, but some workers have been recruited into the group one after another.

Senior Engineer Qian Jinyang summoned Engineer Zhang Tongqiao from the First Research Laboratory.

Senior Engineer Yan Baosheng summoned the engineer Fu Tianxi from the experimental technology room.

Senior Engineer Bao Zegang summoned Engineer Cai Bokang from the Third Research Laboratory.

Senior Engineer Bian Qiming summoned Liang Minfang, an engineer from the Chemistry Research Laboratory.

……

Most of the summoners are senior engineering directors and senior engineers at the level of small guys, and these are the people who know the grassroots workers best.

Many wage earner candidates raised their hands to sign up and volunteered to join the research group on warship steel plates.

It is one thing to fully respect the personal wishes of wage earners, but the important thing is to have the right professional direction.

Zhang Tongqiao, Fu Tianxi, Cai Bokang, Liang Minfang and other engineers are only 33 years old, and they have not participated in military projects such as Dalian, Kaifeng, 904 steel, and 909 steel.

The engineers of these advanced groups have one thing in common, they cut from all dimensions, and mainly study HSLA in their daily work, and have achieved certain results.

High-Strength Low-Alloy Steel is a low-alloy high-strength steel with less alloying element content and significantly higher strength than carbon steel with the same carbon content. HSLA is a type of steel that is often used in large engineering components of ships, bridges, and pressure vessels.

The numbers in 904 steel and 909 steel are the code names of military steel, the items with the prefix 9 are generally ship projects, and the prefix 6 is usually for the army, such as the combat vehicle steel plate 681 steel.

The newly established warship steel plate research group is bound to be a research group with a prefix of 9, and almost all the engineers recruited into the group are engineers who directly or indirectly study HSLA.

Director Qin said that the number of the first batch of members of the research group was about 50 people, and seeing that the 50 people were about to be full, there were still no large, medium and small bosses to summon the three stinkers from the second research laboratory.

"The three of us are mainly researching silicon steel, and we have a specialization in the industry, so let's do our job and plan the next silicon steel project. In the next topic, we will study the varieties of silicon steel, although the value of oriented silicon steel is higher, but because the non-oriented silicon steel is cheap, in the next few years or even ten years, the non-oriented silicon steel will still occupy a large number of markets. Ma Hanxing responded flexibly and did his job well, which is to contribute to the firm.

Zhou Tienan has something to say: "Ma Gong, to be honest, the graduation project I did when I was a student at Northeast Institute of Technology was HSLA. ”

Ma Hanxing reprimanded: "Okay, you Zhou Tienan, when it comes to the critical moment, you will become an HSLA expert?"

Zhao Qingshan added: "I have been with Professor Ye Guocheng at the Yenching Steel Academy, and he is an HSLA expert. ”

"Xiao Zhao, you are really enjoyable, when you were making self-developed paints, you said that you were Academician Du's beloved apprentice, and now you have obtained the true biography of Professor Ye? All in all, you are an all-rounder? If I remember correctly, Professor Ye Guocheng mainly served Shougang after 84, and rarely took students in the Steel Academy. Are you one of Professor Ye's few students?" Ma Hanxing couldn't help but wonder.

Zhao Qingshan swore solemnly: "When I was in my junior and senior years, I spent half of my time in Shougang and the subject. ”

"What a noise!" suddenly a person came, Ye Guoguo.

Ye Guoli hooked his fingers concisely: "Zhao Qingshan, follow me." ”

Zhao Qingshan came to Ye Guoguo's office, and Ye Guoguo threw him a piece of paper: "Confidentiality agreement, signed into the group." ”

Zhao Qingshan carefully reviewed the content of the confidentiality agreement, and I unconditionally abide by the company's regulations and keep the company's secrets......

Military projects must sign a confidentiality agreement, this is a routine operation, Zhao Qingshan signed.

It was indeed a soldier's speed, and the next second after signing the confidentiality agreement, Zhao Qingshan followed Ye Guoguo into the research group.

The Iron and Steel Research Institute specially vacated a large conference room that can accommodate 100 people as a war room for military steel projects, and Zhao Qingshan counted that there were 52 people in the war room.

"It's all right?" asked Chief Engineer Qi.

"It's all right. ”

"It's all together. ”

"Without further ado, let's get into the topic, everyone is looking at the information, and I will talk at the same time. Chief Engineer Qi then began the deployment work.

Each person has a piece of information, and Zhao Qingshan quickly browses the information.

The core content of the information is:

1. The development specification of the steel plate is 3~32mm, and the supply status is: ≤16mm plate is non-quenched and tempered, and 17~32mm is quenched and tempered.

2. Strength of steel: yield strength σ0.2≥440MPa, tensile strength σb=550~685MPa.

3. Seawater corrosion resistance: It is required to have a negative natural corrosion potential, and Ni-Cr steel has a low coupling current and corrosion weight loss when it is matched.

……

18. Toughness and plasticity of steel: at -40 °C, the lateral impact absorption work of the V-shaped notch test is not less than 34J, and the fiber fracture area is not less than 50% of the total area at room temperature, and the crack layering that penetrates through the section is not allowed to be more than 2/3 of the section length within the length range of more than two meters.

The eighteen technical requirements are clearly listed, and the instructions of Chief Engineer Qi are: "In view of the technical requirements put forward by the military representatives, we have decided to restart the 945 steel research project, and from now on, the code name of this project is 945 steel." ”