Chapter 331: The older generation is unhappy (celebrating last month's ranking of monthly votes 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. It lasted for almost fifteen years, and it was awarded Second Prize for Scientific and Technological Progress, but was forced to cancel due to some technical obstacles and lack of funds. It should be the same project as you mentioned? "
"should be."
Chang Haonan suddenly became energetic,
“Did you find out who was responsible for the design of the die forging press at Qinghua?”
Jin Gui's previous knowledge of this matter also came from hearsay. It is normal for some mistakes to occur, 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 and later the consultant of the First Ministry of Machinery.”
Hearing this name, Chang Haonan almost blurted out something awesome.
Fortunately, I held it in in the end.
The person who can make Du Yishan respectfully call him "Old Shen" cannot be a mortal.
Shen Hong.
Even though he is not in the same system as Chang Haonan, the latter has heard of this name.
He only attended the fourth grade of primary school. He served as the chief engineer of the Chafang Arsenal during the Yan'an period and became a legendary academician who was self-taught along the way.
He presided over the design of China's first 10,000-ton hydraulic press in the 1950s, and has been engaged in the development and organizational leadership of mechanical engineering for a long time.
Of course, Mr. Shen should be in his 90s now, and he 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 when he was the deputy director of the Machinery Committee.
“Academician Shen is having a physical check-up in the hospital these two days, so don't disturb him. He said you can come to his home next Monday. Then he will call the people who are responsible for several more important sub-projects at that time.”
Hey guys, this is the influence of senior academicians.
Here comes a family photo directly.
“Okay, your help was very timely this time.”
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.
They were probably the first batch of new-style buildings built in Beijing in the late 1980s. They are already a bit old now.
Certainly not a high-end residence.
But it's not like living in a snail's nest as some reports like to portray.
It is simply very ordinary.
If it weren't for the rather special location, no one would have thought that many famous academicians live here.
Ringed the doorbell, the person who opened the door 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 on the surface, the security is still in place. There is no way for people to come in casually, so she doesn't think anything bad about it. "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:
“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 quickly walked forward:
“This is Comrade Xiao Chang. I have heard Mr. Shen talk about you before. You are Academician Du's senior disciple and a close disciple. Please come in quickly..."
Chang Haonan handed the fruit basket, snacks and drinks to the woman who just opened the door.
While the other party received it, he expressed his apology slightly awkwardly:
“I'm so sorry... I just heard from my grandpa that the person here is an expert on the 973 project. I thought you should be a professor about the same age as my dad...”
“My name is Shen Yiqing, and 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's okay, 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.
It was not a big misunderstanding after all. It is 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.
When I had some free time in the past two days, Chang Haonan checked the information and determined that Mr. Shen was 91 years old. Although he was in good spirits, his body was indeed relatively weak.
Before entering the house just now, Shen Yiqing also told him that the conversation should not last more than an hour.
Therefore, Chang Haonan kept the story short and stated his intention to re-launch the development of heavy-duty die forging presses based on existing results, as well as the current demand for die forging presses in the domestic manufacturing industry, especially the aviation manufacturing industry.
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.
“Actually, the reason why the hydraulic press could not be developed back then was mainly because several places encountered great difficulties or reached a dead end. Breakthroughs were not made 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 Chang Haonan:
“At that time, we achieved some results in hydraulic, electrical and control equipment, but in the end we were mainly 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 and frame combination. The 45,000-ton model in the United States, the 75,000-ton model in the Soviet Union, and the Soviet Union exported to The 65,000-ton unit in France has this structure, but the requirements for structural calculations are very high. We can only settle for the next best thing and use a prestressed steel wire winding structure. Although it can theoretically reach about 60,000 tons, However, 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..."
“Second, 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 one is hydraulic oil. We couldn't find hydraulic oil that met the requirements in China at that time…”
“To solve these problems requires a lot of time and funding, but by that time I had already stepped down from my position, and the wind direction above was also changing, and finally…”
Although the speech was a bit stumbling, and even had to stop and pause, and a lot of explanations from Professor Yan Yongnian were inserted during the speech, the veteran academician was absolutely familiar with these technical issues.
At the end of the sentence, he even became a little excited.
Shen Yiqing, who was still 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 who was sitting on the chair next to him.
The eyes look like a child who has seen a toy he likes but doesn't know if he 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, please continue to ask for monthly votes!
(End of this chapter)
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