Siheyuan starts from a better life

Chapter 337, New Alloy 2
Outside the laboratory, Director Wang Honghai kept moving around, glancing at the closed door from time to time.

A lot of cigarette butts have been thrown away.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 like this, but if you want specific performance indicators, you need more professional testing. At present, we can't test in the research institute. For such testing, you can only go to the Iron and Steel Research Institute. The equipment there is more advanced, and the test results are also better. It's more accurate."

After Jiang Yan said this, he yawned greatly.

Seeing Jiang Yan's exhausted face, Wang Hongguan asked, "Are you okay?"

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

"It's okay, 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!"

"Little Jiang, just listen to me! Sleep well, and I will tell you as soon as the test results come out."

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

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

Seeing Jiang Yan's request not to leave, Wang Honghai hurriedly asked his secretary to arrange a car to drive to the Iron and Steel Research Institute with the still warm steel block.

Director Wu of the Iron and Steel Research Institute is an old acquaintance with Wang Honghai. After he entered the research institute, he went straight to his office.

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, this is a new alloy steel we just researched, please test it."

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

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

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

"Hi! What else do you have to say? You still don't believe in my character, and you're still afraid of what I won't do to you."

Wang Honghai heard what Director Wu said, so he no longer concealed it, and said directly: "A while ago, our major metal research institutes held a meeting to study gun steel and solve the problem of army gun barrels. We have researched it not long ago. Not at all."

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.

"It's cannon 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 How embarrassing, put the entire steel research institute in that position.

My research institute has concentrated most of the country's talents who specialize in the study of alloy metals. Some of them are scientists who have returned from abroad. I have such a great foundation to be defeated by a little-known research institute. I have lost my old face to my grandma. home.

Director Wu, who came back to his senses, seemed to have thought of something, so he quickly asked Wang Honghai.

"Could it be that Jiang Yan, the chief engineer of your research institute, researched this!"

"That's right, he researched it. Let me tell you, he researched it for a whole week or so, and basically stayed in the office for food and lodging. This is really a desperate Saburo, and he accidentally fiddled with it."

Hearing Wang Honghai's words, to tell the truth, Director Wu really wants to slap him twice, which is too shameless.

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

This cannon steel is different from ordinary steel. He has high requirements for steel, otherwise his entire research institute has not researched it for so many years.

You know, when the gun barrel is ejected, it is under tremendous pressure.

When firing, the gun barrel is subjected to complex stresses.Due to the shooting parameters (such as the initial velocity of the projectile can reach 500-3000m/s), the action and impact of high-temperature, high-pressure, high-speed gunpowder gas on the pipe wall, and the extrusion of the projectile to the pipe wall, a high tangential stress is formed. ; and the surface of the barrel is subjected to alternate rapid heating (heating rate of 10°C/s to raise the temperature above 710°C) and rapid cooling (10°C/s), so that the structure of the steel produces austenite and martensitic The repeated phase transformation of tenite forms a large structural stress and thermal gradient.Harsh service conditions put forward high requirements on steel for gun barrels, so gun steel should have the following properties: high transverse proportional limit σp or high yield strength σ0.1, no permanent deformation during shooting; high transverse room temperature and - Low-temperature toughness at 40°C, no brittle fracture occurs during shooting; low crack growth rate, high cycle fatigue times, so it has a long service life.In order to prevent the steel for the barrel from softening and expanding the chamber under shooting conditions, it should also have high high temperature strength.

So with so much comprehensive data, it can prove that this kind of steel is not easy. At present, the countries in the world that can produce gun steel that can be used to 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, here are some materials on his research on steel." Wang Honghai said and handed the notebook that Jiang Yan gave him when he went out to Director Wu.

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

This notebook records a complete set of experimental procedures, as well as some dense experimental data and balanced molecular formulas, and the joy on his face cannot be concealed.

"Xiaoqian, immediately notify the experimental department to prepare for the high temperature test, notify the strength test room, prepare for the strength test, and get the stress distortion machine ready, quickly, and give way to all those who are undergoing tests."

The secretary, Xiao Qian, had never seen his leader like this before, but after he responded, he hurried down to arrange everything.

At this time, Jiang Yan didn't know that because of his piece of steel, the whole steel research institute was in a state of chaos, and he was dating Duke Zhou's daughter now!
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.

(End of this chapter)