Smart Industrial Empire

Yun Fei did not expect that the news revealed by Li Lu was actually like this.

He really didn't expect that the North Korean side would pay so much attention to him, the private owner of a small machine tool company from China.At least, at present, the country has not shown too much attention to him.

Yun Fei felt a little angry when he thought of this.

For him, the country often gives the green light all the way, otherwise, the large number of machine tool companies in the country alone will kill Jiuyi Heavy Industry.The country has always had a practice of technology sharing.

Of course, this technology sharing refers to the technology sharing of private enterprises with the state and those state-owned factories under the State Assets Management Committee. If it weren't for the state's attention to him, Jiuyi Heavy Industry's CNC machine tool technology was developed as early as his CNC machine tool. After that, they were forced to share by large state-owned machine tool manufacturers like Dongbei Yiji and Capital Yiji.

Even if he closes Jiuyi Heavy Industry in the end and burns Jiuyi Heavy Industry's research materials, it will be of no use.

In terms of scientific research, talents are the most important.

Whether it is workers from 9327 or experts or technicians from the Soviet Union, when it comes to the choice between the country and his private boss, he will definitely choose the country without hesitation.

What he provides, the country can provide.What the country provides, he cannot provide.

It's just that Yun Fei doesn't know that the country attaches great importance to Jiuyi Heavy Industry.At least, at present, it has not yet risen to the level of attention on the surface.

The world knows Jin Sun's arrogance.That guy calls himself "the most dazzling sun of the 21st century"!Otherwise, he would not be dubbed the golden sun by the world.

The North Korean side attached great importance to him, which Yun Fei never thought of.

Perhaps, few people in China now understand the inevitable connection between CNC machine tools and long-range missiles.

After all, when the Soviet Union and China did not have CNC machine tools.Strategic intercontinental missiles with a range of more than 31 kilometers or even tens of thousands of kilometers have also been produced.For example, the Soviet Union's Topol-MD strategic missile (it is said that the range is [-] kilometers, and it is said to be [-] kilometers), China's Julang-[-] (liquid fuel propulsion, the maximum range is [-] kilometers), Dongfang [-]A (solid fuel propelled, with a maximum range of [-] kilometers) These missiles are all hand-processed by ordinary machine tools.

It was not until the 21st century, more than ten years later, that only a few people understood the various parts and components on the missiles processed by high-precision CNC machine tools.In order to better ensure the performance of the missile.

Otherwise, China's Dongfeng 41 would not have made a breakthrough after a major breakthrough in China's CNC machine tool technology.

The breakthrough of CNC machine tool technology involves many things, not only the improvement and innovation of processing technology, but also higher requirements for materials.Only after the material is improved, the production process can be improved, thus achieving a breakthrough in CNC machine tools.

The shell of the long-range missile does not require high machining accuracy, but there are some spare parts inside.The machining accuracy is relatively high.For example, the flange of the fuel filling port and the inner lining of the missile casing connections at all levels, if only viewed from the drawings, the requirements are not very high, only during processing.Those who work on it will understand how difficult it is.

Take the lining of the shells of all levels linked to long-range missiles as an example, this requires at least a machining center with a four-axis linkage or higher.

The domestic missile lining is not a full circle, but a full circle machined with a lathe.Then use wire cutting to cut into several arc parts according to the design requirements.Then drill and tap on it (threaded holes), and finally rivet these inner linings with the drilled missile casing.

In the pre-processing, the processing requirements are not very high.But when the parts that are divided into several parts are drilled and tapped, problems arise.

Many people know that a missile is basically a cone. Only in this way can it be more aerodynamic and ensure stability during flight.If the stability of the flight process cannot be guaranteed, even if the range of the missiles produced can meet the design requirements, the range of accuracy cannot be narrowed.Therefore, in China and the Soviet Union, two countries without CNC machine tools, the accuracy range of the missile is already considered very accurate if it is within 100 meters of the target.

In the United States and Europe, the range of many missiles can even be guaranteed to be within 3-5 meters of the target.

Many people believe that this is determined by the missile's guidance technology.

Those who are not professionals know that the stability of the missile during flight also has a lot to do with it.

These things are all very professional knowledge. The reason why Yunfei knew it was because their company at that time had some business contacts with aerospace. After entering the 21st century, most of the finishing workshops and equipment of aerospace It was replaced by CNC machine tools imported from abroad.

You must know that these imported CNC machine tools are worth hundreds of millions of RMB!

The addition of these equipment is only to produce various missiles with a more accurate strike range.

There are at least two angles on the lining, one is the angle along the diameter direction of the arc of the part, and the other is the direction perpendicular to the outer circle or inner hole of the part (this angle is relatively small, generally no more than five degrees).This makes it difficult to guarantee the machining accuracy of parts when machining on conventional machine tools.

The four-axis CNC machine tool makes such parts, which requires too high operation level of skilled workers, and is not at the master level. The scrap rate of the processed parts will basically exceed 90.00%. Even if it is made by a master master, the scrap rate can only be Controlled at 80.00% to 70.00%.

Moreover, the processed products are barely usable.In that way, the design accuracy requirements of the missile cannot be met at all.The processing accuracy cannot be guaranteed, which will lead to uneven distribution of screws or rivets at the joint of the missile shell or the place where the rocket engine is loaded on the tail of the missile. During the flight process, it will be released very large, which will affect the stability of the flight process.

Only high-precision five-axis CNC machine tools can complete the processing of these parts.

Only the parts processed by high-grade CNC machine tools with five-axis linkage can guarantee the accuracy of the design.

China has always been very mysterious in the development of strategic missiles.Because few foreign countries know when China conducts missile tests.

The technology of civilian launch vehicles is not much different from the technology of military intercontinental strategic missiles. China's Long March series belongs to civilian rockets, designed and produced to send satellites into the sky.

If in the course of the war, only a small amount of modification is required, the civilian Long March series missiles can quickly complete the transition from civilian to military use.

Only with more powerful rocket technology can the nuclear deterrent capabilities of nuclear-armed countries be expanded to their maximum.

If one day, China's land-based missiles can cover any corner of the world, then even if the United States has a navy that can cover all the seas on the earth, it will not be enough.

North Korea has been conducting secret nuclear tests, but it has never been known to the outside world.

Of course, the Soviet Union is still very clear about these experiments.

With the disintegration of the Soviet Union, North Korea's experiments have fallen into difficulties.

What Yunfei couldn't understand was that since the establishment of diplomatic relations between China and South Korea in 1992, the relationship between China and North Korea had dropped to a freezing point. Why did North Korea take the initiative to seek assistance from China at this time, and even more favored a Chinese private entrepreneur like himself? Plus.

Do they think that with the CNC machine tools, they can make more progress in their nuclear tests?

Or do you think that if you get your own CNC machine tool, you can get your own CNC machine tool technology?Then can a more advanced four-axis or even five-axis linkage CNC machine tool be developed?

Yun Fei couldn't understand the relationship between countries, and he didn't want to. These things were beyond the comprehension of a small person like him.

"Did they really take pictures?" Yun Fei was deeply touched by the various incidents on the Internet in later generations.

He never thought that one day, one day, he would become the protagonist of such an incident.

The shamelessness of North Korea's high-level officials is recognized by the whole world.

The person who did this, is Jin Yipang or Jin Erpang?

Jin Erpang is not dead yet!

I don't know if that guy will live a few more days because of his appearance.

"What do you think?" Li Lu smiled meaningfully at Yun Fei.

For such a thing, she was very entangled in her heart.

She hoped that Yunfei would do this so that she would not feel guilty if something happened between her and Yunfei; but she was also very dissatisfied with Yunfei for doing this. Such a man is too unfaithful!

"..." Yun Fei was speechless.

Nima, if he is really threatened by a country with his nude photos, he will probably live forever like the tombstones in front of many ancient tombs.

If so, what should he be proud of?Or should you be proud?

"Does the North Korean side really think that if they get me done, they can get what they want?" Yun Fei, a rookie who has never been in touch with politics and is not going to do so, really doesn't understand things at the national level.

"Who knows. But I think they mainly want to ease the relationship with China. After the disintegration of the Soviet Union, the only thing North Korea can rely on is China. After the establishment of diplomatic relations between China and South Korea in [-], the relationship between the two countries declined. At the freezing point, when the capital bid for the Olympics last year, our country’s bid for the Olympics was not successful because of North Korea’s opposition vote. Jin Yipang’s days are numbered, and he is preparing for his handover of power...” Although he is not very good at politics Clear, but Li Lu still knows the situation in North Korea very clearly.

These days, she is not idle.

She has her own sources of information. (To be continued..)

ps: Thank you Jin Hao for the big monthly pass.

There is another update to make up for the previous update.