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Heat spray is a material processing process that is the principle to cover a coating on the substrate to change the properties of the substrate.

What material is used as a coating, it is very particular, and the different materials can achieve different effects. For example, the titanium nitride coating can improve the abrasion resistance of the material, and the zirconia coating can also be used in addition to wear. To high temperature resistance.

As a materialist, Qinhai has some understanding of the performance of various materials. Cold Yuming said that the material to be coated is a ferrite. He knows why the other person is, because at least in that age. The most important role of ferrite materials as a material coating is to absorb radar waves, and this function is required, can only be a military.

Use ferrite coating to achieve the stealth effect of the aircraft and other equipment, which is a very common practice in the year.

Although it belongs to the military secrets of countries, it can also be seen from some literature.

I have learned this technology from some foreign languages ​​from some foreign literatures and began related experiments, and Qin Hai as a traveler, but also knows the development of this technology, and Its existence of various defects.

The so-called ferrite refers to various types of compounds formed by ferrite and oxygen.

The chemical molecular formula of spinel type ferrite includes a divalent metal ion, such as bveman, cobalt, nickel, copper, etc.; two trivalent metal ions, generally trivalent iron ions; and four oxygen ion.

The use of spinel type ferrite as an absorbing material, the process is relatively simple, the price is relatively low, but its defect is too large, and the absorbent band is too narrow.

If it is necessary to increase the width of the absorber, multiple coatings are needed, each of which is directed to a frequency band, which makes the coating too thick.

Will improve the weight of the equipment.

For example, the proportion of ferrite materials is approximately 5, and if the thickness of the coating is 4 mm, the coating area is 50 square meters, then the weight of the entire coating can reach 1 ton, which is for invisible aircraft.

It is undoubtedly an unbearable extra burden.

Qin Hai did not specialize in research on stealth materials, but participated in some peripheral consulting work, and some major technical directions Wenti still have some understanding.

He knows that the focus is focused on the ferrite material is a curved road, so I can't help but remind you to remind himself.

Li Zhongyun and Wu Honglin two people, naturally not the engineer of Tongjiang Mining Machinery Factory, their real identity is the researchers of military 70X, and is conducting research in invisible fighters.

At present, 70X research ideas for stealth materials are also limited to the use of spine-type ferrite materials.

The researchers have purchased three thermal sprayers from Qingfeng Agricultural Machine Factory through the Mining Machinery Factory to carry out the spraying experiment of ferrite material.

As a result, it was found that the adhesion of the material was not enough, and he couldn't solve this Wenti again, so there was this trip to Qingfeng Factory.

According to Li Zhongyun, Wu Honglin original idea, they just went to Qingfeng Factory to understand technical details, do not need the technical staff of Qingfeng Factory to truly involve this study, after all, this is a confidential project involving national defense military, easy to Let the people participate.

Who is thinking, Qin Hai is coming to say that they are a follower road.

Also said that "employ people do not doubt"

In this way, if you mean, they have to pay attention.

After the two left the Qingfeng Plant.

I called a call to the unit leader and said the situation.

The 70X has just a researcher who arrives at Anhe's missile base to participate in the diagnosis of missile tail, knowing that Qin Hai people, so, in this manual, the unit leader immediately instructed Li, Wu two people to the provincial military zone to contact Yue Guoyang, in order to fully understand the background of Qinhai.

Yue Guo yang listened to the narrative of the two.

When I took a chest, I've trusted that the comrades of Qin Hai were trusted. Be accepted as a few years ago, the Political Department of the Provincial Military Region has detected his political background, and these years, his business is getting bigger.

It is even more likely to get together with overseas hostile forces.

For Qin Hai, Iron Oxer Spray is a lot of things, Yue Guoyang haha ​​smiles, tells Li, Wu, Qin Hai is unspeakable in material learning, if they have difficulties, find Qinhai is the most HaoDe method.

With the mentality, Li and Wu two who will suspect it, Li, Wu have returned to the Qingfeng Factory and asked to see Qinhai.

With their thoughts, if Qin Hai can accurately say their origin, then prove that Qin Hai does know the stealth material, and it is indeed possible to help them.

If Qin Hai is doing something wrong, there is no need to talk again.

"Chairman of Qin, we didn't know your situation before, so some things were confidential for you. This can you understand it? You are right, we are engaged in stealth materials, why you will think of ferrite Is it a lot of spraying? Is it not doing this foreign aircraft and missile stealth technology? "

Wu Honglin asked.

Qin Haidao: "Because our factory is to do hot spraying equipment, I also have a little more attention to this technology.

You are right, and it is indeed useing ferrite materials as aircraft stealth material using ferrite materials, but you can peek out some clues.

However, according to I understand that using ferrite materials as a stealth material, now only the first generation of stealth technology, ferrite materials in stealth defects, want you to be clear.

"We are trying to overcome these defects, we use hot spray craftsmanship, it is also an attempt.

Wu Honglin said.

Qinhai nodded: "Yes, from the literature, foreign practice is to mix with the ferrite material with the ferrite material to make the outer surface coating, you can use the thermal spray method to improve coating Strength, and reducing the use of the resin, it is indeed a progress, it is worthy of affirmation.

"..."

Li Zhongyun and Wu Honglin are speechless. If Qin Hai is from the director, they may have a little excitement, but such a young young saying that this is the old and autumn in front of them. " "

It seems to have some strange feelings.

The Qinhai did not care about the mood of the two people. He is not as professional, he is not as professional, but it is enough to understand the WEILAI technology trend. He is enough to be the teacher of these two.

"The defects of the ferrite material itself are not fully compensated by changing the coating process. Therefore, other stealth materials are currently studying abroad. According to I judge, Weilai ferrite materials will be fully replaced, we now spend Too many energy is in terms of ferrite materials, and the final result can only be taken behind.

Since we know that other materials are more promising, why can't we use limited human, financial resources? "

Qinhai generous Chen class.

Li Zhongyun and Wu Honglin exchanged a horrified eyes, then tried to ask: "Chairman Qin, you think that the ferrite material must be out of time, then what materials will be used in Weilai stealth technology, do you understand?"

"I don't dare to understand, just some individual opinions, it is also a throwing brick.

Qin Hai said, "According to my analysis, microwave stealth materials can be divided into two categories.

The first category is inorganic material, including various metal powders, metal fibers, carbon black, carbon fibers, graphite materials, ceramic materials, ferrite materials and isotope materials, etc .; second types are organic polymer materials, including various conductive high Molecular materials such as polyethylene, polyaniline, polypyrrole, polythiophene, etc., and organometallic complex, etc.

In the long run, organic polymer materials are more promising because it has better plasticity. After the addition of various dopants, it can achieve large bandwidth absorbance, and the proportion is far lower than the ferrite material. Effectively reduce the weight of the aircraft.

After the Qin Hai said, Li Zhongyun and Wu Honglin were stupid.

These situations from Qin Hai, they also saw some spider silk in some foreign literatures, but it is not as clear as Qinhai.

Qin Hai said that they knew that these words were definitely not a cave, and people were on the two hipsters.

Since Qin Hai has already planned to help the other party, it is too lazy to hide anything.

These thoughts, sometimes only a window paper, feel mysterious when they don't open, and I have discovered it.

If Li, Wu Er people have to pursue his knowledge from these knowledge, he refers to a few public literature let them read, if they can't read these things that Qinhai say, then they can blame They lack academic sensitivity.

Sensitive this kind of thing, who can be clarified? "Qin Chairman, you said too good."

Can you go back with us, I think we will definitely have a lot of common languages ​​with you.

Wu Honglin said excitedly.

Qin Hai stunned, asked: "Trike business? Will it be a teacher of Valley?"

"It is, how, how, Qin Chairman knows us?"

Li Zhongyun was shocked.

"Hey, the god has long been, but it is only a long time."

Qin Hai quickly concealed.

The head worker is also a big cattle in the material world, but because many results can't see academic publications, the famous gods in society is not very good.

The Qin Hai in the former generation has played a few times, as for this world, he also heard this name in Chen Heqi, so he said that God's hand can be said.

Li Zhongyun said: "The two we are all the assistants of Valley, this time, the valley will always come over.

Two days ago, we called back, say your situation, Valley always is very interested in your point of view, explain us, we must ask you.

I don't think that Qin Chairman is so thorough about stealth materials, so we want to take the liberty to see our total workers. He must also have a lot of Wenti to discuss with you.

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