King of Industry

Zhao Guoyang and this subordinate of Xingtai International finished their meeting, and it was almost early morning.

Thinking that everyone would have to work tomorrow morning, he hurriedly asked everyone to go back to rest.

As for herself, Zhang Yufang arranged to live in an empty dormitory on the tenth floor.

After receiving a quilt from his cousin Zhao Qian at the door, Zhao Guoyang suddenly remembered something.

By the way, Xiaoqian, I'm free these two days. I'll ask Teacher Zhang to accompany you to set up a mobile phone. Firstly, it's necessary for work; secondly, it's convenient to contact the second uncle and second aunt.

Uh... Zhao Qian was stunned for a moment, opened her mouth, but finally said nothing.

Zhao Guoyang naturally understood the reason for her hesitation, so he patted her on the shoulder with a smile and said: Don't worry, you are now a reserve cadre of the company, and it is only natural to be equipped with a mobile phone. In this regard, I am not Give you special treatment.

Seeing Zhao Qian's relieved look, Zhao Guoyang waved to her and said, Okay, let's go to rest early. Xiaoqian, I know your ability very well. If you study hard and work hard, it will be absolutely fine.

After listening to her cousin's words, Zhao Qian clenched her fists, nodded vigorously, watched Zhao Guoyang enter the room, and then slowly turned and left.

...

In the next few days, Zhao Guoyang basically focused all his attention on the SMS company.

After Zhao Guoyang made a decision on the establishment of the mine hoist project, there was no suspense.

In the past few days, Li Zhaohe and Zhao Siyan led technicians from the technology department and the new product research and development department respectively on the SMS company side to conduct disassembly research on a domestic mine hoist that has been purchased.

In fact, Zhao Guoyang had given Zhao Siyan early on the design idea of ​​the first mine hoist in his factory.

However, there is still a difference between theory and practice. Although there is no problem with his design ideas, it still needs a lot of verification and data support if it is to be transformed into real objects.

The only thing you don't need to worry about is the electronic control system of the mine hoist.

Because the patent Zhao Guoyang applied for has been approved by the state.

Coupled with the presence of Dinghaishenzhen like Ji Lao, there must be no problem.

While the technicians of SMS Company were busy dismantling and researching the domestic mine hoist, Professor Ji and the students were not idle either.

These days, they walked around the libraries of Aurora University, Songjiang Jiaotong University and other institutions of higher learning, and found a lot of information about mine hoists.

For this kind of heavy machinery, the students have a relatively systematic and comprehensive cognition and understanding, and they are no longer in the state of half-knowledge.

Seeing that tomorrow is the weekend again, on Saturday morning, Zhao Guoyang called everyone together again and held a project progress seminar.

The scale of this meeting is completely different from the first meeting.

Except for the three company leaders Zhao Guoyang, Li Zhaohe, and Zhao Siyan, almost all the technicians from the new product research and development department and the technical quality department were present.

On the side of Peking University, Professor Ji and six students were also sitting in the conference room alone.

As the chairman of the company and the initiator of the drilling hoist project, Zhao Guoyang naturally sat in the middle position, with Li Zhaohe and Zhao Siyan beside him.

Originally, Zhao Siyan wanted to give up the position to Ji Chongxuan, but she declined.

According to Elder Ji, he was a guest from afar, so he couldn't make a fuss, so he sat alone on one side with the students.

After seeing that everyone was seated, Zhao Guoyang first said loudly: Okay, everyone is here, then let's start!

Opening the notebook in front of him, Zhao Guoyang said calmly: The main purpose of today's meeting should be clear to everyone before. It is to study and discuss the precautions at the beginning of the design of our 'mine hoist' project, as well as the current situation. work progress.

Having said that, Zhao Guoyang turned his head to Li Zhaohe and asked, Director Li, how is the dismantling and analysis work going on in the technical department these days?

Li Zhaohe straightened his back and said vigorously, Mr. Zhao, we have almost disassembled it. We have also recorded its working principle and the structure of each component.

In the next step, we only need to integrate all the links, and then we can officially enter the design stage!

Zhao Guoyang gave a hmm, turned his head to Zhao Siyan and said, Minister Siyan, do you have any doubts about this project in your new product development department?

After hearing Zhao Guoyang's question, Zhao Siyan shook her head and said, No, Mr. Zhao. Our new product development department has gone through all the information fed back from the technical quality department.

Basically, it can be confirmed that with our company's current technical level, it is possible to carry out the production of 'mine hoists'...

Zhao Guoyang let out a huh, and his eyes fell on Ji Chongxuan and the students again.

Mr. Ji, you and your classmates have checked a lot of information these days. Do you have any questions about the implementation of the 'Mine Hoist' project, or do you have anything to add?

Ji Chongxuan himself is an expert in electromechanical aspects. On the mine hoist, he only pays attention to the electronic control system.

In this regard, Zhao Guoyang's patent of DC all-digital new electronic control system has been confirmed by him, and it has definitely reached the first-class level.

So in other aspects, Ji Chongxuan didn't express much opinion.

At this time, after hearing Zhao Guoyang's question, he turned his attention to Yuan Qinghua and the others and said, Xiao Yuan, Liu Yan, you all heard Mr. Zhao's question, right?

If you still have any doubts, please raise them as soon as possible now, don't wait until the project is officially launched, and then mess yourself up!

After Ji Chongxuan finished speaking, Yuan Qinghua and the other students turned their attention to Tang Wanru.

These days, when everyone was collecting information together, this Xiaojiabiyu Jiangnan girl showed a persistence and thirst for knowledge that were completely different from her appearance.

Although she is only a graduate student in the Department of Materials, Tang Wanru's mechanical attainments are not low at all.

After everyone asked, her classmate Liu Yan told others that Tang Wanru's undergraduate major was mechanical design, manufacturing and automation.

That is to say, this girl who looks like a little bird and a person turned out to be a graduate student admitted by interdisciplinary studies. This was a very remarkable thing in the early 1990s.

Seeing everyone's eyes turn to her at this moment, Tang Wanru said cautiously: Mr. Zhao, you explained to me the solution to the safety problem of the main shaft during the last meeting.

After reviewing some information, I have confirmed that your statement is completely feasible.

In terms of the choice of spindle material, we can indeed use low-carbon alloy steel such as 20CrMnTi, 20Mn2B, 20Cr or nitrided steel such as 38CrMoAL to replace ordinary bearing steel.

However, after consulting relevant information, I found that even if better materials are used, damage to the main shaft is sometimes inevitable...

Speaking of this, Tang Wanru said without worry: I have always been worried that the quality of the main shaft will become the biggest hidden danger of our 'mine hoist'?

About this problem, do we have a solution or avoid it?

After Tang Wanru finished speaking, some technicians in the conference room all looked at her with surprise and appreciation.

Although these technicians of SMS Company may not all have a bachelor's degree, they have been engaged in the development and research of heavy machinery, especially mining machinery, for a long time, and their understanding of mechanical equipment must be much better than that of ordinary college students.

At this time, Tang Wanru's question was about the new project Mine Hoist, but it was also applicable to other mining machinery.

In fact, the damage problem of the main shaft widely exists in products such as heavy machinery and construction machinery.

Tang Wanru's question can be said to hit the nail on the head, and it immediately made everyone look at her with admiration.

Similar to everyone's reaction, Zhao Guoyang also gave Tang Wanru an appreciative look.

Student Wanru raised this question well. No matter how the material of the spindle changes, no matter how good the material is, there is no 100% guarantee that it will not wear out.

Under such circumstances, flaw detection for the main shaft is an essential step.

Spindle flaw detection? After hearing this, Tang Wanru showed a look of understanding.

Zhao Guoyang said with a hmm: That's right! The main shaft is prone to cracks under the action of a large cyclic load for a long time. Under unknown circumstances, if it deteriorates further, it will gradually lead to fatigue fracture.

This kind of crack often appears in the part with the greatest cyclical stress. For example, at the shaft shoulder, the interference fit, the key joint, near the oil injection hole, etc.

In order to identify the danger zone for fatigue cracks, we need preventive flaw detection of the main shaft.

In this regard, after our hoist is designed, we will go through a series of experiments to determine the service life of the main shaft.

Any customer who has purchased our products must perform flaw detection on the main shaft of the hoist strictly according to this service life.

In addition, on the main components of our hoist, we also need to determine its limit load through theory and a large number of tests. If it exceeds this limit load, flaw detection must also be carried out!

When Zhao Guoyang said this, everyone's faces showed relief.

Seeing Tang Wanru's relieved expression, Zhao Guoyang said with a smile: Student Wanru, regarding the flaw detection method of the elevator shaft, the ultrasonic flaw detection method and the magnetic particle flaw detection method are usually used in the world.

If you are interested, you can read an article in the third issue of International Construction Machinery Journal in 1989. The title is On the Flaw Detection of the Main Shaft of Mine Hoist...

Tang Wanru was stunned for a moment, then nodded her head again and again.

Now she has the utmost admiration for this young Mr. Zhao.

This person can name such a specific article in the International Construction Machinery Journal, there is no doubt that his knowledge is genuine and full of gold.