"When did Wang Qingfeng hook up with the French again?" Yun Fei was surprised by Deng Lanqing's words.

Deng Lanqing shook his head: "Philip's people are not willing to help us get these tools, in fact, their own company has this kind of cemented carbide tool with more than 700 layers of nano coating developed by the Krupp Materials Research Institute in Germany, but they are unwilling to provide it to us under the pretext of being unwilling." After all, these tools are mainly used for ultra-precision machining and military manufacturing. They don't have the audacity to violate the Wasanna Agreement. What's more, they don't want us to have precision manufacturing capabilities, after all, many of our country's cutting-edge medical equipment are imported from their domestic ......"

The Wasena Agreement not only stipulates advanced military technology, but also restricts the export of various advanced strategic technologies and technological equipment to China.

Yunfei wants to bring in the engines used in their most advanced civilian regional airliners from Pratt & Whitney.

After all, the United States is also one of the initiators of the blockade of advanced technology against China.

In particular, China has not yet joined the World Trade Organization, and it is basically impossible to succeed in the introduction of technology in various advanced technology fields. Only after China joins the World Trade Organization will these high-end technologies, which can be extended to the military field, gradually open up to China.

Even so, the most advanced things are still something that China cannot buy with money.

For example, the high-precision five-axis linkage above the high-precision process equipment used to process some key parts of the aero engine, as well as various advanced military materials, unless China can produce it itself, the worst of the same level in foreign countries will not be exported to China.

"Sooner or later, we won't need these things from foreigners anymore!" Yun Fei sighed.

No wonder this knife is so expensive, not including tax, it is 400 dollars a piece.

"Our material factory has been engaged in the research and coating process of nano-coating materials for so many years, so it stands to reason that it should have been successful a long time ago, right? After all, we are not much later than foreign countries in the research of coating tools...... "Zhang Hu also knows that the five-axis machining center of the Jiuyi Research Institute is about to be finalized in the past few days, and it is running here every three forks. He didn't expect that this time he actually met the elusive Yun Fei who was holding a golden milling cutter with the thickness of a little finger and observing, and when he heard Deng Lanqing say that this was the most advanced knife for four hundred dollars, his eyes were about to fall out.

This thing can't be eaten, it's just a membrane on the outside, and it's useless after it's used, especially the alloy matrix inside, which is useless. He has been to Jiuyi Material Factory and its research institute many times, so he naturally knows where the key technologies of these coating materials are.

"It's not too late for us to start, but for the precision machining technology of the base. We don't have it in China; The material process of the matrix is also not available to us; Not to mention the coating technology on the outside, the coating thickness on the outside of this knife is only less than three threads, but there are more than seven hundred layers, and we can only get more than one hundred and twenty layers...... "Yun Fei sighed.

There are things that can be more successful than others in terms of capital investment and start-up.

Just like their 32-bit chips, it was clear that he had just arrived in Rongcheng and quickly got them out after he had Soviet technical experts in his hands, and at that time, European and American countries were still mainly using eight-bit chips. He studied the chip technology of the sixteenth, but he did not dare to sell this chip technology to the world on a large scale, and even in China, he only used it himself and provided it to the military for some research.

It's not that he doesn't know the stakes.

It is not even more so that he carries out a technological blockade of the whole world out of patriotism.

Rather, foreign technology is far more advanced than China's. Once they understand the principle, with the technical experience they have accumulated over the years. It is completely possible to succeed in a very short experiment, and then Yun Fei finally has a little bit of technological leadership.

Even after the 16-bit chip was introduced to the market in the past two years, it did not replace the eight-bit chip technology, mainly because the cost was too high. And the technical advantages are not too prominent. By now, 32-bit chips have begun to be available on the market, although the cost is now outrageously high. But this replacement of 16-bit chips and 8-bit chips will not take more than two years at most.

That's the foundation.

"Wouldn't it be thicker to achieve this level of wear resistance?" As for technology, Zhang Hu is a layman to the point where he can no longer be a layman.

Hearing his words, Deng Lanqing rolled her eyes and left directly, she was not ashamed to be in the company of such a guy who didn't know how to pretend to understand, and even asked questions to a layman.

Yun Fei immediately looked at Zhang Hu and smiled bitterly: "I said Uncle Zhang, can you ask something that is a little expert?" Didn't you see that our Mr. Deng disdainfully stood with you? It's a real idiot. If it's really that easy, we'll be short of knives? ”

Zhang Hu was immediately stunned.

As for the doorway in this, he, who is not a professional, can't understand it at all. Immediately, he looked at Yun Fei suspiciously, hoping to get an answer.

"The coating tool is not the thicker the coating, the better, the outer coating is just to increase the wear resistance of the tool during the cutting process, especially the cutting edge, which is ...... this position" Yun Fei picked up the alloy milling cutter in his hand and pointed to the part of the blade to Zhang Hu.

Zhang Hu nodded: "I know this, the milling cutter is mainly to rely on this side edge for cutting." Don't just tell me why the coating can't be too thick......"

Faced with Zhang Hu's look of understanding, Yun Fei was speechless for a moment.

This seems to be a common problem of guys in the whole system, who like to pretend not to understand.

Who said that the main cutting of the milling cutter is to rely on two side edges? Don't you know that there are many special milling cutters that cut by the edge of the bottom? However, Yun Fei is too lazy to explain to Zhang Hu now, it is very difficult to explain these professional technical knowledge to people who don't understand technology.

"These slaughtering materials are mainly used by vapor deposition method or physical deposition method, or the two methods are used to coat the ionic state and stick it to the substrate of the tool...... Don't ask what physical deposition method or vapor deposition method is, you just need to know that these are two different kinds of very fine wear-resistant materials can be glued to the tool substrate......" Yun Fei saw the confusion on Zhang Hu's face, and was about to speak, and he was a little speechless for a moment.

If Du Niang had grown up at this time, he would definitely let him ask Du Niang.

Zhang Hu nodded, even if it was like a fog, he still didn't interrupt Yun Fei's words.

When he arrived at the Jiuyi Research Institute, those guys didn't explain these things to him, perhaps because they were afraid that it would be too difficult to explain, so they didn't mention these professional terms at all.

"Isn't this coating as thick as possible, because these wear-resistant materials are very hard, very brittle, just like those ceramics, hard enough, right? But it's easy to crash. What's more, these coating materials are too thick, which will make the cutting edge of the tool dull, and these difficult-to-machine materials with good cutting toughness must ensure the sharpness of the blade dù......" Yun Fei explained to Zhang Hu for a long time, and finally let Zhang Hu understand why the coating is not as thick as possible.

"So, the thickness of these coating materials is fixed, and within this fixed range, the more layers of the coating, the better the wear resistance of these tools?" Zhang Hu finally asked a level of words, Yun Fei was just about to nod, let out a long breath and then sigh about his own difficulty, Zhang Hu said something that made him about to run away: "Oh, you just told me like this earlier?" You have to show your expertise in front of me, and tell me that the thinner the coating, the better, and the more, the better......"

"I can't communicate with you happily......" Yun Fei was speechless for a moment.

"So, if Jiuyi Materials researches such a knife, it can also be sold for four hundred dollars? Boy, you're a sign of getting rich! ”

"Dream on. The cost of producing this thing in Germany is now definitely not more than a hundred dollars a handful, and with the improvement of the process and the advancement of technology, it is possible to reduce the price to one or twenty dollars or even a few dollars. In this world, it is not only the Germans who are advanced in knife technology, but also the Americans and the Japanese are even better than them! Yun Fei sighed.

Especially in Japan and the United States, the technology in this area is definitely not blown, and the Chinese can't admire it.

"Then they want to sell it to us at such a high price?" Zhang Hu's question made Yun Fei completely rampage.

"If we have such technology in China, or if Europe and the United States do not blockade us, do you think we should use some shady methods to obtain these knives? Let's take a look for yourself and go back, the food in our canteen here is far worse than your government canteen......" It seems that Deng Lanqing's departure is not unreasonable.

It's so hard to talk to these non-tech-savvy people.

"Now you know why I'm avoiding him? Our domestic foundation is poor, and it is simply not something that one of our research institutes and these supporting factories can accomplish. He had to explain it to him once and for all, and it made people's heads big. Seeing Yun Fei walking towards him as if he was going to eat people, and Zhang Hu was walking towards this side after Yun Fei, Deng Lanqing immediately looked at Yun Fei with a sympathetic look.

"Let's just ignore him, he loves it. I don't know what the big guys above think, how to get him, a guy who doesn't understand technology, to be in charge of industry, and let him be in charge of the economy......" (To be continued......

PS: Thank you sunrays for the big two monthly passes, thank you for Youku 4, Yunfei ~~~~ two big monthly passes.