Siheyuan starts from a good life

Outside the laboratory, Director Wang Honghai kept moving around, glancing at the closed door from time to time.

There were a lot of cigarette butts thrown away at my feet. at this time. Laboratory door. suddenly opened.

Wang Honghai hurried over. Seeing Jiang Yan who had come out, he grabbed his hand. He asked nervously: "How's it going? Is it done?"

Jiang Yan yawned, rubbed his red eyes, and said slowly: "After preliminary testing, all indicators basically meet the requirements."

"You mean we succeeded." Director Wang asked Jiang Yan with a trembling voice.

"It can be said that, but if you want specific performance indicators, you need more professional testing. Currently, we cannot test it in our research institute. For such testing, you can only go to the Iron and Steel Research Institute. Their equipment is more advanced and the test results are also It’s more accurate.”

After Jiang Yan said this, he yawned greatly.

Seeing Jiang Yan's tired look, Wang Honghai asked with concern, "Are you okay?"

Hearing the director's concerned words, Jiang Yan waved his hand.

"It's okay, I'm just a little sleepy."

Aren't you feeling sleepy? I worked desperately for this thing for a week. This time I didn't sleep a wink for two whole days and nights with this formula. Now I can almost fall asleep standing up.

"In this way, you go and have a good sleep. This good body is the capital of the revolution. Leave the testing to me. I will go to the Iron and Steel Research Institute for testing."

Jiang Yanqiang cheered up and said to Wang Honghai, "Let's go together!"

"Xiao Jiang, just listen to me! Separate your sleep and I will tell you as soon as the test results come out."

"Xiao Gong, Xiao Gong, go get Mr. Jiang's car and take him home to rest."

After arranging all this, Jiang Yan was stuffed into the car without any explanation.

Seeing Jiang Yan's refusal to leave, Wang Honghai quickly asked his secretary to arrange a car and rush to the Iron and Steel Research Institute with the still warm steel blocks.

Director Wu of the Iron and Steel Research Institute and Wang Honghai were old acquaintances, and they went straight to his office after he entered the research institute.

After knocking on the door and getting permission, Wang Honghai couldn't wait to walk in. When he saw Director Wu sitting inside, he put the steel block he was carrying on his desk.

"Old Wu, come on, this is a new alloy steel we just developed. Please check it out."

Hearing Wang Honghai's words, Director Wu pushed up his glasses, glanced at the alloy on the table in surprise, and asked Wang Honghai.

"Lao Wang, tell the truth, what is this alloy steel used for?"

"This," Wang Honghai hesitated after hearing Director Wu ask.

"Hey! What else do you have to say? You still don't believe in my character, and you're still afraid that I won't give it to you."

When Wang Honghai heard what Director Wu said, he stopped hiding it and said directly: "A while ago, our major metal research institutes held a meeting not to study gun steel and solve the problem of gun barrels in the army. We have recently researched it. There’s nothing interesting about it.”

Hearing Wang Honghai's words, Director Wu opened his eyes wide, looked at Wang Honghai in disbelief, and pointed to the piece of alloy on his desk.

"This is gun steel."

Wang Honghai nodded firmly.

After receiving Wang Honghai's affirmative reply, Director Wu couldn't hold himself any longer and stood up from his seat.

After returning from the last meeting, Director Wu did not delay at all. When he returned to the institute, he began to organize scientific researchers to start publicity. He had just begun to have some ideas here, but he did not expect that other people's finished products had come out. This made him Why is it so embarrassing to put the entire Iron and Steel Research Institute in that position?

My research institute has gathered most of the talents in the country who specialize in the study of alloy metals, and some of them are scientists who have returned from abroad. However, my great background was defeated by a little-known research institute. My old face is embarrassing to my grandma. Home.

After coming back to his senses, Director Wu seemed to have thought of something, and quickly asked Wang Honghai.

"Could this be developed by Jiang Yan, the chief engineer of your research institute?"

"Yes, he researched it. Let me tell you, he researched it for a whole week or so. He basically stayed in the office for food and accommodation. He is really a hard-working man, and he accidentally tinkered with it."

After hearing Wang Honghai's words, I can honestly say that now Director Wu really wants to slap him twice. This is too shameless.

However, in order to further confirm, he still looked carefully at the piece of alloy on his desk, and it really looked like this.

This gun steel is different from ordinary steel. He has very high requirements for steel, otherwise his entire research institute would not have developed it for so many years.

You know, the barrel is under tremendous pressure when the cannon is ejected from the chamber.

When firing, the artillery barrel is subjected to complex stresses. Due to the need to withstand shooting parameters (such as the initial velocity of the shell up to 500-3000m/s), the action and impact of high temperature, high pressure, and high-speed gunpowder gas on the tube wall, and the squeezing of the tube wall by the shell, a high tangential stress is formed ; Moreover, the surface of the barrel undergoes alternating rapid heating (raising the temperature to above 10c at a heating rate of 710c/s) and rapid cooling (10c/s), causing the steel structure to produce austenite and martensite. Repeated phase transformations form large tissue stresses and thermal gradients. Harsh service conditions place high demands on the steel used for artillery barrels, so the gun steel should have the following properties: high lateral proportion limit σp or high yield strength σ0.1, without permanent deformation during shooting; high lateral room temperature and - 40c low temperature toughness, no brittle fracture occurs during shooting; low crack growth rate, high cycle fatigue times, thus having a long service life. In order to prevent the steel used for the barrel from softening and expanding under shooting conditions, it should also have high high-temperature strength.

Therefore, so much comprehensive data can prove that this kind of steel is not easy. Currently, the countries in the world that can produce gun steel that can make gun barrels can be counted on one hand. This sudden announcement was revealed through research, but I still couldn't accept it.

But this is a good thing. If it is really researched, the country will never be strangled by others again.

"Old Wu, this is some information about his research on steel. Take a look." Wang Honghai said and handed Director Wu a notebook that Jiang Yan gave him when he went out.

Director Wu took the notebook he handed over and sat there and read it carefully. The more he looked at it, the more shocked he became.

This notebook contains a complete set of experimental procedures, as well as some dense experimental data and balanced molecular formulas. The happy look on his face cannot be concealed.

"Xiaoqian, immediately notify the experimental department to prepare for high temperature testing, notify the strength testing room to prepare for strength testing, and prepare the stress distortion machine. The speed must be fast, and all those undergoing testing must give way."

Secretary Xiao Qian had never seen his leader like this before, but he still responded and quickly ran down to arrange everything.

At this time, Jiang Yan didn't know that because of his piece of steel, the entire steel research institute was in a frenzy. He was now dating Zhou Gong's daughter!

Grandma also came in to see him several times and saw that he was sleeping soundly, so she didn't disturb him.

Jiang Sirui also came over to see Jiang Yan when he got off work in the evening. Knowing that he had been busy these days, he chatted with his grandma for a while and then returned to his home.