The WISCO cooperative research and development project led by Peng Hui is to reduce the oxygen content of special steels by improving manufacturing techniques and processes.
Their research and development goal is to reduce the oxygen content of special steel to about 4pp.
This is just an ideal goal. In fact, Wuhan Iron and Steel, including Peng Hui's team, does not have much hope.
Therefore, they also have a secondary goal, which is to steadily reduce the oxygen content of special steel to about 5 pp.
The most critical thing is 'stability', two words.
Now the Wuhan Iron and Steel Research Institute also has the means to manufacture special steel with an oxygen content stable at 5pp, but the manufacturing process involved is extremely complex and the requirements are very high, and the corresponding costs will greatly increase.
If special steel and bearing steel with an oxygen content stabilized at 5 pp can be manufactured by conventional means, they will have a certain degree of competitiveness in the international market.
The most advanced international technology can only produce steel with an oxygen content of around 4pp.
Even if it is just a secondary goal, it is still very difficult to achieve. Peng Hui's team has spent more than 40 million yuan, but has achieved nothing so far.
Of course, it cannot be said that nothing has been learned. Some of their experimental data are also very valuable.
However, there is no progress in research. They do not know which method can definitely help reduce the oxygen content of steel.
You can know it with just one data. It is a concept to reduce the oxygen content of steel to 4pp.
For example, the oxygen content of ordinary steel in the international market is between 100pp and 500pp.
If the oxygen content can be reduced to less than 100pp, it is already a very good steel. If the oxygen content is less than 50pp, it is generally a special steel.
Bearing steel is a special steel among special steels, and it has such high requirements for oxygen content.
This kind of top-notch international research must implement some new methods instead of conducting research by conventional means.
Peng Hui's team tried several new methods, such as vacuum plastic steel, rapid cooling, cooling and pressurization. In order to further reduce the oxygen content of the steel, many steps were performed under vacuum, but the results were not satisfactory.
Although their research has not progressed, the experimental data are still very valuable because they used many new methods.
These experimental data are now in Wang Hao's computer.
He looked at the information carefully, and then established a research task to reduce the oxygen content of steel--
【Task 4】
[Research project name: Analyze experimental data to improve the manufacturing process to reduce the oxygen content of bearing steel (Difficulty: A). 】
[Inspiration value: 0. 】
After establishing the task, Wang Hao was not surprised by the difficulty. For similar data analysis and research, if the difficulty is at the A-level level, it is already very good.
A few years ago, Wang Hao participated in the titanium alloy strength research of Peng Hui's team and also did data analysis. He had experience in similar work and naturally knew how to solve the problem.
After classifying and summarizing the information, Wang Hao already had a general direction in mind, and he immediately called Chen Mengmeng and Xu Jie.
This year Chen Mengmeng officially graduated and was appointed as an associate professor by Xihai University and served as Wang Hao's daily assistant.
Xu Jie has not yet graduated with a Ph.D. He is studying for a Ph.D. under Zhang Zhiqiang, in the research direction of mathematical computers.
Now Wang Hao likes to ask Xu Jie for help in solving some mathematical and computer-related work.
Xu Jie's mathematics level cannot keep up with Chen Mengmeng, Helen and others, but the most important thing is that he can do better than others in the direction of combining mathematics and computers.
Wang Hao found two people and started explaining the work.
Simply put, write code.
Because it involves invalid and irrelevant entries without screening, and there are many difficult mathematical computer conversions involved, the code cannot be written by just one person. It requires a deep understanding of discrete mathematics and probability.
So it was just right to leave the work to Chen Mengmeng and Xu Jie.
…
Chen Mengmeng and Xu Jie were really good at it. It took them three days in total to write all the code.
At the same time, Wang Hao also established a mathematical model.
After combining the written code, the data in the information was analyzed, and a series of results were obtained.
Then it’s mathematical analysis again.
The subsequent work was relatively easy, because I had similar experience, and finally made a curve graph, and analyzed the deviation value based on the derived function.
"This deviation is still too low!"
Wang Hao looked at the data in the chart and pressed his forehead with a headache.
Xu Jie looked at the chart data and couldn't help but ask, "Teacher Wang, what does this deviation index represent?"
"The representative relies on our analysis results to improve the process, and the improvement is very small." Wang Hao said briefly, "As you know, we are analyzing the research data of a special steel."
"We need to improve manufacturing processes and processes based on the analysis results, that is, determine which steps are effective, which steps are ineffective, which steps are effective, and which steps are ineffective..."
"If the deviation value of the experimental data analysis results is too small, it means that the results we get may not be satisfactory..."
He sighed again as he spoke.
Xu Jie nodded thoughtfully and asked with some confusion, "It must be effective, after all, we have analyzed the deviation."
"That's why I said the effect is not ideal."
Wang Hao sighed, but knew that there was no way to continue research, because the task had been completed and the inspiration value would no longer increase.
In other words, based on the data sent by Peng Hui's team for analysis, what they can do is already the limit.
"If you want to further reduce the oxygen content of steel, you must add a new process or manufacture it in some new way."
"I guess Peng Hui hasn't used this method before..."
Although he was not satisfied with the analysis results, Wang Hao still sent the final results to Wan Yiming and said a few words in particular, "The deviation value of this result is very small. If you try to improve the manufacturing process based on the results, the effect is probably not very good." good."
"If you want to further reduce the oxygen content just now, you must add new methods."
"How about this!"
"Tell Professor Peng to send a special team over and let's discuss it together."
This is the method Wang Hao thought of.
There are many methods of material manufacturing, and he can discuss with professional researchers to determine which methods are effective in reducing oxygen content.
In this way, the manufacturing steps can be increased in a targeted manner to further reduce the oxygen content of the steel.
After Wan Yiming answered the phone, he checked the content sent by Wang Hao. Then he found Peng Hui and talked about what Wang Hao had explained and the analysis results.
"Academician Wang said that the deviation value of the results is too small, and even if this method is used to improve the process, it will not have much effect."
"In addition, Academician Wang also asked us to send a special team to discuss manufacturing issues with him." Wan Yiming said seriously.
Peng Hui felt a little regretful after hearing this, "I originally expected Academician Wang to help, but it seems that this research is indeed too difficult."
"Since Academician Wang requested it, let Guifang go, plus Lou Jianping, let them lead the team there."
"Let's take a look at the results given by Academician Wang. He said that the effect is not great, but it is not ineffective. It would definitely be good to improve it."
He said and shook his head.
It's not that Peng Hui doesn't believe in Wang Hao's ability, but he believes in it very much, which is why he made such a statement.
Since Wang Hao said that the deviation value is too small, it is estimated that it will not have much effect, and it can be ignored. It must not have much effect.
But no matter what, as long as there is
Some results have been achieved.
He decided to conduct the experiment immediately. Their research is not to create a new steel, but to use some methods to reduce the oxygen content of special steel with an oxygen content of around 20pp.
Generally, the minimum can be reduced to about 5pp, because there are errors and deviations in the experimental process, and sometimes it can be higher, reaching 6pp7pp
Even though the experimental manufacturing process was very rigorous, they never reduced the oxygen content of the steel to less than 5pp.
The laboratory here was preparing to conduct new experiments, and on the other side, Peng Hui also sent Shi Guifang and Lou Jianping to lead a team to Xihai University.
The new experiment took a total of two days. They strictly followed the data listed by Wang Hao to improve the process and process. After the new steel was cooled, it was sent to the testing room.
Peng Hui, Wan Yiming and others did not have high hopes.
After being sent to the testing room just now, they returned to the office to wait for the results. They also paid attention to Shi Guifang and others and asked them if they had seen Wang Hao.
At this time, Shi Guifang and others were already waiting in the small conference room of the Mason Mathematics Laboratory. They received a call from Peng Hui and gave a brief report.
Then I heard an exclamation from the opposite side, "Director Peng! Professor Wan! There are results!"
"The results are out!"
Peng Hui was talking on the phone and was so frightened that he put down the phone after giving an explanation and hurriedly walked out of the office.
When I arrived at the door, I saw Professor Zeng in the testing room excitedly saying, "4pp4pp"
"We contacted and did three tests and confirmed the results. The oxygen content is around 4pp!"
"I can't believe this data, it suddenly reached 4pp."
"The results of our research are here!"
After hearing this, others also said excitedly, "Really? There are 4pp."
"So low?"
"Is it true? The research is completed? The reservation target has been directly achieved..."
"This is awesome!"
Peng Hui froze on the spot. He had the same reaction as the others. He grabbed Professor Zeng and asked again, "Are you sure it's 4pp?"
"Of course!"
Professor Zeng was very excited, "I didn't believe it at first, but then I conducted two more tests before the data was confirmed."
"To be precise, the deviation from 4.1pp does not exceed 0.2pp."
"This has achieved the desired goal!"
"I can't believe it~~"
Peng Hui also couldn't believe it, so he pulled Wan Yiming into the office.
"Bang!"
The door was slammed shut.
Peng Hui immediately couldn't help but ask, "Didn't Academician Wang say the effect is not good? Why just 4pp?"
"I don't know either." Wan Yiming was also a little confused. "That's what Academician Wang told me."
"Could it be that Academician Wang made a wrong judgment?"
"may be……"
"never mind!"
Peng Hui simply didn't think too much. He directly picked up the phone, found the number and called Wang Hao.
The person who answered the phone was Chen Mengmeng.
Chen Mengmeng is Wang Hao's assistant. Wang Hao's personal phone number is confidential. General calls are first answered by the assistant and then transferred to him.
Chen Mengmeng heard that it was Peng Hui from the metal laboratory of Xijing Jiaotong University. He also knew what the call was about, so he directly transferred the call.
At this time, Wang Haocai just walked into the conference room and saw Shi Guifang and Lou Jianping.
Shi Guifang is an old acquaintance.
They had only met Lou Jianping once and exchanged a few words with each other briefly, but they were still considered acquaintances. They had just met and exchanged greetings, and were about to get down to business when a phone call suddenly came through.
Wang Hao clicked the answer button and heard Peng Hui's excited voice on the other side, "Is this Academician Wang?"
"Yes, Professor Peng, hello."
"Academician Wang! Academician Wang! Thank you so much. We have just improved the process based on your analysis, and the oxygen content of the special steel we produced has been reduced to about 4.1pp, which has reached the expected goal!"
Peng Hui thought Wang Hao would also be very excited, but he heard a regretful tone from the other party, "Only 4.1?"
"talent?
Wang Hao sighed and said, "I knew it would have no effect, but it's only 4.1...at most it can catch up with the international level." After he finished speaking, he sighed deeply, obviously not satisfied with the result.
Peng Hui said with confusion, "What are your expectations, Academician Wang?"
"I originally thought it could reach 4, or 3.9, and then make further improvements. It would be best to reduce it to about 3pp. Only in this way can the bearing steel produced catch up with the international advanced level. But now it seems that it is still a little behind expectations. !」
Wang Hao was really disappointed.
Although the oxygen content of the most advanced bearing steel in the world is around 4pp, there is one thing to consider--
They also have the world's top level in other manufacturing processes of bearing steel and bearing technology.
It’s different in China!
Even if the bearing steel produced reaches the international advanced level, due to gaps in other manufacturing processes and bearing manufacturing technology, it is naturally difficult for the bearings manufactured with this to reach the most advanced international level.
"If the oxygen content of steel can be reduced to less than 3pp, first of all, bearing steel will have exceeded the international advanced level."
"In this way, even if the technology in other parts is inferior, with the best material support, the bearing steel produced may not be worse than the most advanced international level, and it can support the use of anti-gravity aircraft..."
That's what Wang Hao thought.
In fact, it is the same as a chef cooking. Using fresher ingredients and simple cooking, the food will be delicious.
If the ingredients are the same as others, and others have superb cooking skills, naturally the food cooked by others will be more delicious.
opposite.
Peng Hui put down the phone in a daze, and he finally understood it completely.
No wonder Wang Hao said that the effect was not very good, but when they conducted the experiment, they directly achieved the expected goal.
It turns out that the goals are different!
Wang Hao's goal is to produce steel with an oxygen content of 3pp. Naturally, he looks down on the 4pp data. He feels that the data analysis results are unsatisfactory and that future improvements will have little effect.
Peng Hui smiled bitterly at Wan Yiming and said, "It can only be said that the understanding is different... our structure is still too small!"
Wan Yiming also smiled bitterly.
They took '4pp right' as their ultimate goal, and the results were transferred to Wang Hao's hands. After analyzing the experimental data, they achieved it directly.
The structure of the two sides is indeed not on the same level.
However, 3pp
is it possible?
This data feels so high that it is impossible to achieve.
When the oxygen content of steel is reduced to less than 10 pp, the research difficulty increases exponentially with every increase, and the improvement of steel is also exponential.
The high-end bearing steel produced by Wuhan Iron and Steel Co., Ltd. with an oxygen content of about 5 pp to 6 pp is not competitive at all in the international high-end bearing steel market because the oxygen content of high-end bearing steel is below 5 pp.
The former can only manufacture high-end ordinary bearings.
The latter can manufacture state-of-the-art bearings.
3pp
What is that concept?
Peng Hui and Wan Yiming thought carefully and found that they didn't even have any concepts in their minds...
