Black technology starts from the steel suit

Chapter 58 Chapter 57 Shenguang and 3D Printing
After spending a happy New Year's Day with the whole family, Wang Feng once again devoted himself to intense work.Although he has just experienced a series of hardships such as being rejected by his parents, urging him to marry, being dumped, etc., it was still a good holiday overall.

The Lugao Institute has just completed the purchase and commissioning of equipment, and the personnel are arriving one after another. Brother Wei is in charge of this, so he doesn't have to worry about it for the time being.

However, the work of the Yanda Energy Storage Laboratory is very tense. The holidays did not let the laboratory staff relax. Many people consciously stayed and worked overtime, and the vacation time was adjusted later.

After excluding the technical route of producing tin oxide LiC composite materials by the hydrothermal method, the focus of Yanda Energy Storage Laboratory is on the calcined crystallization method, that is, the sol-gel method.

Compared with the equipment requirements required by the hydrothermal method, the latter needs to meet slightly higher standards, but the output and risk of the two are not the same.

The autoclave required by the hydrothermal method is known as a "bomb" in the industry. The ultra-high temperature of thousands of degrees and the ultra-high pressure above 1GPa make this reaction vessel, which is more than one meter thick and more than ten meters long, a potential big bomb.

The crystallization speed of the hydrothermal method cannot meet the demand, and the cost is high, which are unacceptable to them, so the latter has become their choice based on the requirements of improving safety, reducing potential risks and costs, and increasing production. .

As Major General Ning said, they have gone a long way in the field of laser control than most countries. The laser technology developed based on the Shenguang III project is sufficient to meet the stringent production requirements. It is a little higher, but the advantage is that the production cost is much lower, and the quantity is large and full.

"This one is Professor Wang, a master who solves the problem of lithium battery anode materials!" Major General Ning introduced: "This one is Academician Zhang of the Chinese Academy of Physics, an expert in the field of laser control. The successful completion of Shenguang III, Academician Zhang It is indispensable!"

"I have admired your name for a long time, I have admired your name for a long time." Wang Feng extended his hand enthusiastically: "Our country's laser technology can reach the international advanced level, thanks to you, Academician Zhang."

"Where, where, it's all thanks to everyone. Professor Xiao Wang is really young and promising. The future of the country still depends on you young people." Academician Zhang said modestly.

When the two met, they had a business chat first, and then they took their seats. After that, considering that both of them are busy people, they didn't have any nonsense, and directly entered the topic:
"Why not use the traditional sintering method?" Academician Zhang asked curiously: "The traditional sintering method should be more efficient, and it takes more energy to design and build a laser sintering production line that can meet the production requirements. 01:30 order?"

"Indeed, laser sintering is more difficult and costly, but we have reasons to do so!" Wang Feng felt helpless, and he didn't want to do it if possible, but the fact is often not based on human will.

"I would like to hear more about it!" Academician Zhang said curiously. He is a master in the field of laser control, but he is also very interested in materials. After all, the Shenguang series is not only targeting the national defense industry, but also the nuclear fusion project. .

"There are many reasons. The most important point is that the traditional method needs to crush the sintered material, grind it into a fine powder, and then briquette it to shape it!"

"Any questions?"

Wang Feng: It's better to say that there are problems everywhere!

"When we choose carbon nanotube materials, we focus not only on its ability to extract lithium and conduct electricity, but also on its physical properties!"

"Whether it is crushing, grinding, heat treatment, or reshaping, it will inevitably destroy its basic structure, and the gain outweighs the loss..."

"So that's the case?" Academician Zhang groped his chin: "Then just don't mash it?"

"That doesn't work either. The traditional sintering method will lead to a large number of pores inside. If these cavity structures are not crushed and ground, the overall defects will be very large, and there is no way to use them at all."

"So it's like this, so you plan to use laser sintering to shape it at one time?"

"Our preliminary idea is indeed like this." Wang Feng introduced: "So we refer to some principles of laser 3D printing technology, but replace the powder with colloidal materials, and expand the scale at the same time, so that after one molding, the There is no need to do any processing, at most it can be cut and packaged."

"Interesting, aren't you afraid that the material will be directly melted through?" Academician Zhang asked with a smile. The high-energy laser only needs to stay on it for 1/10 seconds longer, and the thin layer of colloid will be burned through, causing damage. The material that has been formed is, after all, just carbon nanotubes.

"That's why we need to find you." Wang Feng didn't hide his purpose at all: "We need your help to design a set of laser control equipment with a high enough level to avoid such errors as much as possible."

"Then your request is really embarrassing." Academician Zhang frowned: "Our original work was completed based on the requirements of the laboratory. If we want to expand the scale to the level of mass production in the factory, the difficulty may still be high. A lot of."

In fact, scale is only one aspect. The most important issue is to balance performance and cost.In the laboratory, they don't need to consider how much it costs, but if they want to apply it to the industrial world, the cost is very important and must not be ignored.

"And the most important thing is that none of us have experience in designing this kind of project. This is the most important thing." Academician Zhang is not unwilling to accept it, otherwise he would not come here at all: "So in the early stage, the cost of trial and error It may be a little high, you have to be mentally prepared for this.”

Even if it is a small-scale design and test improvement, the cost of this kind of high-precision equipment is by no means a small number.It’s okay for them to help out in the lab, but they won’t be able to bear it if they eat melons later on, so it’s still necessary to get a vaccination in advance.

"We have already been mentally prepared for this. You just have to do it with confidence." Wang Feng also knows that there is no one who saves money when it comes to the military industry. I believe that both Commander Lu and Major General Ning are psychologically aware of this. Prepare.

"We have also considered the cost of trial and error, and we have made preparations at the same time. Academician Zhang, you can just do it with confidence and boldness." Major General Ning can sit here and say this, in itself represents the opinion of the military

"That's good, then I can rest assured." Since he had already reminded in place in advance, and the other party had accepted it, if the other party nagged about something afterward, he would have to talk about it.

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(End of this chapter)