Chapter 331 The older generation is unhappy (celebrating last month’s monthly ticket ranking entering the top 100, continuing to add updates)
Du Yishan’s connections did not disappoint Chang Haonan.
In just one day, the latter received a call back.
"Xiao Chang, I have contacted you about the heavy-duty die forging press you mentioned. It was designed by Tsinghua University, but it was not in the 1980s. The project was established in the 1970s and has been in progress for almost ten years. Five years later, I won the second prize for the Science and Technology Progress Award, but later due to some technical obstacles and lack of funds, I was forced to cancel it. It should be the same project as you mentioned? "
"It should be. "
Chang Haonan suddenly became energetic,
“Have you heard about the person who was responsible for the design of the die forging press at Qinghua?”
Jin Gui’s previous knowledge of this matter also came from According to hearsay, it is normal for some mistakes to occur in the process, but as long as this project exists, it will be of great help to Chang Haonan's plan.
"That's not true."
Du Yishan on the other side of the phone had a slight smile in his tone,
"I directly contacted Academician Shen Hong, who was the deputy director of the National Machinery Commission at that time and later the consultant of the First Ministry of Machinery."
Hearing this name, Chang Haonan almost blurted out an awesome sentence.
Fortunately, I held it in in the end.
The person who can make Du Yishan respectfully call Mr. Shen cannot be a mortal.
Shen Hong.
Even though he was not in the same system as Chang Haonan, the latter had heard of this name.
A legendary academician who only attended the fourth grade of elementary school and served as the chief engineer of the Teahouse Arsenal during the Yan'an period, becoming self-taught along the way.
In the 1950s, he presided over the design of China's first 10,000-ton hydraulic press, and has been engaged in the development, organization and leadership of mechanical engineering for a long time.
Of course, Mr. Shen should be in his 90s now and must have left his front-line position long ago.
However, even if such a powerful person retires, he can still maintain a considerable number of contacts.
What's more, the 68,000-ton die forging press project was initiated during his tenure as deputy director of the Machinery Committee.
“Academician Shen is checking up on his health in the hospital these two days, so don’t bother him. He said that you can come to his home next Monday. At that time, he will also bring together the people who were responsible for several important sub-projects at that time. And called him over. "
Good guy, this is the influence of senior academicians.
A family photo came directly.
“Okay, your help this time was so timely.”
Chang Haonan thanked him, chatted with Du Yishan for a while, and then hung up the phone.
......
Three days later, Chang Haonan specially brought some gifts and went to the address given by Du Yishan.
An ordinary apartment building.
Probably the first batch of new-style buildings built in the capital in the late 1980s, they are already a bit old now.
Certainly not a high-end residence.
However, it is not as snail-paced as some reports like to portray.
It’s just plain ordinary.
If the location were not quite special, no one would have thought that many famous academicians live here.
Ringing the doorbell, the door opened was a young woman who looked about 30 years old.
"You are..."
After seeing such a young person standing at the door, who even looked like a student, she even subconsciously stuck her head out and looked outside.
It turned out that there was no one else behind Chang Haonan.
"Who are you?"
Although this community looks unremarkable, the security is still in place. There is no way for people to come in casually, so she didn't go there. What harm to think about. "I am Chang Haonan. I have contacted Mr. Shen before and I am coming to visit him today."
"Uh...you are..."
The woman was obviously a little surprised by this answer. She did not let Chang Haonan into the house immediately, but turned back and shouted inside:
< br>"Grandpa, there is a guest named Chang Haonan at the door looking for you..."
Obviously, this should be Shen Hong's granddaughter.
Immediately afterwards, a man who looked to be in his fifties walked out of the house. When he saw Chang Haonan at the door, he walked up quickly:
“This is Comrade Xiao Chang. I heard Mr. Shen talking about you, Academician Du’s top disciple and closed disciple, please come in..."
Chang Haonan handed the fruit basket, snacks and drinks in his hand to the woman who had just opened the door.
While receiving it, the other party apologized slightly awkwardly:
“I’m so sorry...I just heard from my grandpa that the person here is an expert on the 973 project, and I thought you should be one. A professor who is about the same age as my dad..."
"My name is Shen Yiqing. I am Shen Hong's granddaughter. I am not engaged in scientific research, so I may not know much about you..."
Chang Haonan remained calm:
"It doesn't matter, I'm used to it. ..."
Since his rebirth, there are countless people who have been shocked by his age. Shen Yiqing will not be the first, nor will he be the last.
After all, it was not a big misunderstanding. It was human nature not to let strangers in, so after a few simple explanations, the matter was over.
As for the man who came out of the back room, his name is Yan Yongnian, a professor at Qinghua University.
He was one of the main designers of the 68,000-ton heavy-duty die forging press that year.
Under his leadership, Chang Haonan walked between two tall piles of newspapers and walked into the innermost bedroom.
"Mr. Shen, it's a great honor to visit you at your home."
Chang Haonan shook the old academician's almost withered hand.
During his free time in the past two days, Chang Haonan checked the information and determined that Mr. Shen was 91 years old. Although his spirit was still good, his body was indeed relatively weak.
Before entering the house just now, Shen Yiqing also asked that the conversation should not last more than an hour.
Therefore, Chang Haonan made a long story short and prepared to relaunch the idea of developing heavy-duty die forging presses based on the existing results, as well as the current domestic manufacturing industry, especially the aviation manufacturing industry, for die forging presses. The demand situation was stated.
As a result, Shen Hong's eyes suddenly lit up as his hand on crutches was still a little shaky.
When he mentioned the die forging press, he seemed to be twenty years younger in an instant.
"In fact, the reason why this hydraulic press could not be operated back then was mainly because several places encountered great difficulties or reached dead ends. They failed to make breakthroughs for several consecutive years, and the superiors gradually lost confidence..."
After picking up the cup and taking a sip of water, he slowly began to introduce it to Chang Haonan:
“At that time, we had achieved some results in hydraulic, electrical and control equipment, but in the end we mainly It’s stuck in three places.”
“First, the domestic research on the main body structure is not thorough enough. From experience, the most suitable frame for super-heavy hydraulic presses should be the plate-frame combined type, the 45,000-ton model in the United States. , the two 75,000-ton units in the Soviet Union, and the 65,000-ton unit exported by the Soviet Union to France, all have this structure, but the requirements for structural calculations are very high, so we can only settle for the next best thing and use prestressed steel wire winding. Although the structure can theoretically reach about 60,000 tons, the stress distribution of the steel wire winding layer is uneven and the reliability is very poor. Especially since we cannot make good enough steel wire materials, it is even worse..."
“The second is that the research on equipment vibration is not thorough enough. We discovered this problem during the pilot test, but we have never been able to completely solve it.”
"The third is hydraulic oil. Hydraulic oil that meets the requirements could not be found in China at that time..."
"To solve these problems, a lot of time and funding were needed, but by that time I had already stepped down from my position. And the wind direction above is also changing, and in the end..."
Although the speech was a bit stumbling, and even needed to stop for a while, and a lot of explanations from Professor Yan Yongnian were inserted during this period, the old academician had a strong understanding of these technologies. The questions are definitely worth mentioning.
At the end of his speech, he even became a little excited.
Shen Yiqing, who had been paying attention to the situation at the door, quickly came in and comforted him for a while before he calmed down.
After sending his granddaughter away, Shen Hong, who was obviously a little tired, raised his head and looked at Chang Haonan sitting on the chair next to him.
The eyes are like those of children who have seen a toy they like but don’t know if they can buy it.
"Now, have you been able to solve all these problems? And...can the 68,000-ton hydraulic press be approved by the higher authorities?"
Brothers continue to ask for monthly tickets!
(End of this chapter)