Chinese entertainment for engineering students

Shuimu University, Metallurgical Laboratory, Department of Materials.

Since Wang Fei flew to Xiangjiang a few days ago, Wang Xu has been busy here for two days. The operating steps given by the system are very detailed. Wang Xu did not make any modifications because he did not understand them.

But he still made some mistakes. The method given by the system actually requires some new equipment, and some can be processed. Wang Xu just found a school factory and placed an order, and it was done for a few hundred yuan.

But many of the control aspects are more troublesome. It's not that it can't be done, but it takes too long. It also requires some high-precision servo motors and other imported equipment. Wang Xu is really too busy to do it alone.

So Wang Xu planned to rub it with his hands, using his own highly sensitive and highly controllable hands to replace those control devices. It was just a matter of trying it a few more times.

Get the finished product first, and then interested parties will probably come to cooperate.

Regarding automation-related things, the experience in his previous life and the skills in this life make Wang Xu basically equivalent to an engineer with more than ten years of work experience.

Even if it's mechanics, computers, or even mathematics and physics, he can do it, but the materials major is not within his skill range.

Therefore, he could only follow the rules and not dare to go beyond the rules.

The senior fellow in the Department of Materials is called Cao Lei, who has a doctorate from Professor Bian and is a new student who enrolled last year. However, he had been in Shuimu during his undergraduate and graduate studies, in this laboratory, and was quite familiar with the equipment here.

At that time, many master's and doctoral degrees were promoted directly like this, and this was almost the case in all universities. If I encounter a good young talent, I will try my best to keep them. The talent gap is really serious.

In the 1980s, many colleges and universities could not even recruit experimental teachers to teach the use of equipment, because most teachers did not have the opportunity to come into contact with these equipment.

It has been more than ten years since the college entrance examination was resumed, but only a few Ph.D.s have been graduated. In addition, there are still many parallel imports of Ph.D.s in the past. Therefore, a doctor like Cao Lei who has fully received formal undergraduate and master's education still has some cards.

Cao Lei is from Hubei Province. He is almost 30 this year and his children are all in elementary school. He was delayed by that period in middle school and went to the countryside to farm.

After resuming the college entrance examination, I started studying again. After taking the exam for three consecutive years, I finally got admitted to Shuimu. I can be regarded as a god of the generation.

Senior Brother Cao is a very good person. He is not a talkative person, but once he talks about equipment, he will chatter endlessly. All kinds of equipment are very expensive these days, and he has almost memorized the operation manual.

With the guidance of such a senior brother who specializes in equipment, Wang Xu's progress is quite smooth.

The fine operations of the metallurgical process are mostly controlled by machinery and equipment, which are not too difficult to use, at least for Wang Xu.

The difficulty is actually focused on the use of specific new equipment, because it relies on Wang Xu's feel, and the feel needs to be tried again and again.

Fortunately, the experiment went quite smoothly. After several experiments, Wang Xu was able to successfully use his special touch to pull out an extremely thin guide wire.

After several more adjustments, Wang Xu's experiment was successfully completed, and it took less than two days.

The next two days were more of manufacturing than experiments. Wang Xu wanted to make some. Although they couldn't be made into real wires, they could still be used in internal circuits.

Oxygen-free copper can be used in almost all aspects of electronic circuits. It has extremely low resistivity and excellent signal-to-noise ratio, especially for audio and film and television equipment.

The finished product has been handed over to Professor Bian, and the significantly reduced resistivity aroused his great interest. Even the layman Wang Xu knows what a 10% drop in resistance means, let alone Professor Bian, who has been working with metals all his life.

This improvement based on oxygen-free copper has reached the ceiling of China. Professor Bian highly doubts that this is no longer ordinary oxygen-free copper.

This is likely to be a kind of oxygen-free copper that has been developed abroad for decades, but has always been an industrial blank in China. Its name is single crystal copper.

So Professor Bian rushed to the laboratory almost immediately. He had to talk to the student immediately.

Determining single crystal copper requires special testing, and Professor Bian handed it over to Cao Lei for further analysis and testing.

Single crystal copper was actually born in the 1950s. Its electrical conductivity can be close to that of silver and its toughness is excellent. It is an extremely excellent conductor material.

However, the processing method of this kind of thing has always troubled the industry. In the past, it was mainly used for the pins and internal connections of chips. However, processing and commercializing wire rods is still a problem even in the West.

This kind of single crystal copper wire requires a new technology and equipment called hot continuous casting technology. This technology will be invented by Xiaori in the next few years, so until recently, there was no news about this kind of wire on the market.

Simply put, this technology is a new material forming technology developed on the basis of advanced continuous casting technology and directional solidification technology.

The fundamental difference from traditional continuous casting is the use of heated molds to prevent crystal nuclei from forming on the mold wall, and form directional solidification conditions through end heat dissipation, allowing the molten metal to solidify and form the moment it leaves the mold outlet.

It sounds simple, but almost every detail requires a lot of experiments to determine the final parameters, and the parameters influence each other, and it can be said that there are many situations where one affects the whole body.

As for how to adjust the parameters, how to adjust them, what the principles are, and why they are adjusted in this way, the knowledge has been deepened, and metaphysics has been tested from time to time.

The creation of many materials seems to be inexplicable, and all kinds of oolongs emerge one after another. It is too common to try to make an A but to end up with a B.

Moreover, these things are the core technologies of various companies, and they don’t even apply for patents. In many cases, you don’t even have a reference.

As a result, there will be such a consequence that designing materials and processes will be faster than burning money directly, and it will make no difference at all.

Anyway, Wang Xu didn't dare. If it weren't for the danger, Wang Xu wouldn't touch the material even if he was beaten to death. Or how can I say that the materials are a sinkhole? He doesn't only cheat college students, but also countless bosses who have been cheated to death by the materials.

The sample has been handed over to Senior Brother Cao by Professor Bian, and he has been asked to do various tests, at least to find out whether it is real single crystal copper, as well as various parameters such as resistivity, signal-to-noise ratio, flexibility, etc.

Professor Bian is watching from the side, and Wang Xu is manually pulling an extremely thin copper wire on a homemade device.

Wang Xu's hand is very steady, but he knows that his hand is actually shaking slightly. This shaking is adjusting parameters such as the strength, speed, angle of pulling in at any time, and everything depends on the feel of the hand.

After all, it is a temporary processing equipment. Both the processing accuracy and the assembly condition can only be said to be unsatisfactory. Everything else depends on Wang Xu's hands.

If there was a level of technicians who could draw wire drawings, Wang Xu would undoubtedly be the leader among them. It would be absolutely no problem to rate him as a level eight worker.