"Zhu Lao, there are a few other comrades, let's go to the office and say." Qin Feng led everyone into the office and made tea for the big guy.

Holding the teacup, Zhu Lao took two sips and spoke again: "Comrade Qin Feng, we know that it is not easy for your private enterprises to develop an advanced bulletproof material, you can open a price, no matter how much, we can accept it, I hope you can tell us the processing technology of this bulletproof material." ”

Qin Feng smiled: "Zhu Lao, you can call me Xiaofeng, as for the processing technology of this bulletproof material, it is not a secret, if our third-generation tank needs it, I am willing to tell you about it, and I will not accept a penny." ”

If it is Pan Daqing's kind of goods to ask for, of course Qin Feng can't give it, that kind of person is for his own interests, and regards Qin Feng's invention as his own invention as his own invention, as a step for his promotion.

I wish the old man is different, I wish the old man is for the development of the tank industry of the motherland, in order to catch up with the advanced level of the world!

Looking at Zhu Lao's empty sleeves, thinking of this person who has struggled all his life for the development of the country's military industry, Qin Feng can't be stingy with some of his small skills.

Zhu Lao and his companions were very surprised, before they came, they had heard that this private enterprise is very powerful, and the civilian products developed are better than military products, and as a private enterprise, they must regard technology as the most important thing, so they are ready to hit a wall.

But now, Qin Feng actually contributed his technology for free!

"However, I don't know if this bulletproof material will be suitable for tanks, after all, it is the least effective of all bulletproof materials."

Alumina, silicon carbide, boron carbide are three common bulletproof materials, the price becomes higher in turn, the protection gradually becomes stronger, he uses alumina to reduce costs, after all, it is too expensive for the army to afford, but for the main battle tank, the price is not a problem, the protection is the most critical.

After all, the weight of composite armor of different materials will often have a difference of three or five tons, and the engine of a domestic tank is limited and cannot carry a too heavy hull.

"Yes, we have studied a lot of bulletproof materials these times, there are dozens of research groups in China, and a lot of manpower and material resources have been invested in establishing and calculating penetration mechanics and material mechanics, and hundreds of new materials such as alumina ceramics, high-oxygen silicon glass, high-density alloys, silicon carbide ceramics, etc., we have developed a lot of layout methods, even so, the protection capacity of the latest 683 composite armor is still limited."

The specific number cannot be disclosed, but Qin Feng knows clearly, the protection ability of the 683 composite armor against the tail stable deshelling armor-piercing projectile is only equivalent to the level of 350 mm homogeneous armor steel, this most advanced armor material in China, there is still a big gap from the world's advanced level, and it is impossible to prevent the new generation of Western 120 mm tank guns and Lao Maozi's 125 mm tank guns.

Armor protection still has a long way to go.

Therefore, when Pan Daqing came to say that a private unit in China had come up with a brand-new body armor that could actually prevent direct shot from rifle bullets, Zhu Lao immediately decided to bring someone over to take a look, and when he heard Qin Feng's words, everyone's mood was different.

What does this mean? First of all, he said that he was willing to contribute for free, so that we were moved, and then he said that the performance of this bulletproof material was too poor and not suitable for tank use, in the final analysis, he was still unwilling to teach us this technology!

If you don't teach, then you might as well say it openly, and it will save us time.

"Xiao Feng, what material do you think is the best?" Zhu Lao didn't care about this, and continued to ask.

"Let's not talk about the materials first, let's start with the bulletproof mechanism." Qin Feng spoke: "At present, the ceramic bulletproof armor we use is the same as the principle of bulletproof and artillery shells. It is to use the crushing of ceramics to absorb and transfer energy. ”

The ceramic will shatter after impact, and at the same time transfer the energy of the impact to the surroundings, continuously dissipating the energy of the impact until the incoming projectile loses all its kinetic energy and completes the interception process.

Of course, for tanks, in addition to preventing kinetic armor-piercing bullets, it is also necessary to prevent armor-piercing shells and missiles that rely on metal jets to burn through armor, etc., which is also achieved through consumption, and the broken ceramics will constantly split the jet and reduce its energy to burn through the armor.

With the same bulletproof equipment, the ability of armor-piercing bullets is higher than that of armor-piercing bullets, because the consumption of metal jets is easier.

"Yes, this is the current mainstream, and the British Chobham armor is also this design scheme, is there a more advanced bulletproof mechanism?" Zhu Lao's eyes were full of energy.

The technicians of this private enterprise are amazing, in such a short period of time, they have successfully developed a series of bulletproof equipment for army soldiers, maybe in terms of tank protection, there are really new insights?

"Yes."

Everyone present took a deep breath, and breaking through in principle would be equivalent to opening a new door, which would be easier than them breaking through in materials.

"We use aluminum alloy or other special metal high-strength materials to make the armor into a honeycomb shape, and then put layers of bulletproof armor materials into these honeycomb boxes."

"Why?" Zhu Lao's heart is full of anticipation, and a new door may be about to open!

The existing tank armor is stacked layer by layer of various metal and non-metallic materials, even the famous Chobham armor is also done like this, but in the later stage, it has evolved into the technology that Qin Feng said, it has a professional name: restraint composite armor!

"Ordinary armor relies on the cushioning of hard ceramic armor plates and soft rubber and other materials to prevent bullets, all materials are stacked together, there is no gap, and our composite armor, the layers of bulletproof materials are packed in small boxes, and this part of the armor material is restricted, so that when the armor-piercing bullet is hit, the material in this small box is broken, and it will move repeatedly in the small box, and in this process, the energy of the armor-piercing warhead is constantly consumed."

In the past, it relied on hard hitting hard, relying on the crushing of ceramic blocks to absorb energy, but now when the bulletproof material is packed into a small box, the bulletproof material will move back and forth non-stop, just like countless hacksaws, constantly cutting the warhead that rushes in, and completely grinding the impact of the warhead!

This is a completely new bulletproof mechanism!

The first time this kind of restraint composite armor was used, it was the Yankee's M1A1 tank, and after using it, the protection of the tank was immediately doubled, from the original 300 mm equivalent protection to 600 mm. However, the appearance of this armor has been a matter of 88 years, and the armor technology has always been highly secretive, and now, naturally, even the principle will not be announced, and in this circle of tank protection, no one knows that it is possible to make armor into a honeycomb shape.

In the eighties and nineties, there was a 600 mm of protection, and it was indeed possible to walk sideways. In the later period, the upgraded depleted uranium armor was continued, and it was said that the penetration resistance exceeded 1,000 mm.

That's right, the technology of the Americans is not good, the initial level of protection of ordinary composite armor is an order of magnitude with the East, if it weren't for the monkey version of the two-intercept bomb used by Silly Damu, those ordinary M1 tanks that have not been modified with depleted uranium armor will definitely be killed in a large area.

"That's right, this bulletproof mechanism is very advanced, we can try it!"

"However, this honeycomb must be hard enough, and the aluminum alloy can't be restrained!"

"The thickness of this honeycomb must also not be large, otherwise an armor-piercing projectile may pass through the side walls of this honeycomb."

"If aluminum alloys aren't enough, then we might be able to try special alloys, such as depleted uranium." Qin Feng continued to come up with ideas.

The Yankees not only have the famous depleted uranium armor-piercing shells, but also depleted uranium armor, and there have been paradoxical scenes on the battlefield: in order to destroy a tank that is stuck in a mud pit and cannot move, they absolutely destroy this tank, but with their own depleted uranium shells on their own depleted uranium armor, the flute cannot penetrate!

Of course, this must have the meaning of testing, after all, the front can't be pierced, and the side and back are still proper.

"Depleted uranium?"

"Yes, it is a by-product of extracting nuclear raw materials, after special treatment, the strength of this material will be quite high, two or three times that of ordinary steel, this material can be processed into depleted uranium filament, and then woven into a blanket, and then used to make a honeycomb structure with this silk blanket, its strength must be high enough."

Speaking of depleted uranium, it has to be put together with the word radiation, does depleted uranium have radiation?

There is definitely radiation, and the sun still has thermal radiation, the key is to see if this radiation can affect health.

The use of depleted uranium ammunition on the battlefield, there must be radiation, this radiation is caused by the combustion of the armor-piercing process, depleted uranium ammunition not only has self-sharpening characteristics, but also burns in the process of armor-piercing, increasing the intensity of armor-piercing, so that depleted uranium dust will also float in the air, these dust is inhaled into the lungs, it will make people get radiation sickness, where depleted uranium ammunition is used, will cause a large number of deformed children, it is because the mother breathes this dust.

And what about depleted uranium armor?

American GIs have used depleted uranium armor for 30 years, and except for the veterans who participated in the Gulf War who cried that they had a strange disease, normal tankers have never complained that depleted uranium armor harms their health.

After all, the depleted uranium armor is mounted on the outside of the tank armor, even if the depleted uranium armor is hit, it is only damaged on the outside, and the tank has an overpressure three-defense system inside, which can still filter out those harmful substances.

Even if there is really radiation, for the Yankees' tank soldiers, they still like to stay in a tank with strong protection, so that they can have a sense of security, as for radiation is harmful to health, it is the same as smoking is harmful to health, for people who may encounter accidents on the battlefield at any time, smoking is the best way to relieve stress, it makes no sense to tell him how many years less he can live, he may hang at any time.

Of course, if you put it in China, you have to be more careful.

"As for the possible health problems of depleted uranium, our tank armor can be made disassembleable or pluggable, and it is not used during normal training, and it will be installed when it is necessary to go to the battlefield."

This is not a joke, the current most advanced 85-2 tank in China, the frontal armor of the turret can be disassembled, of course, this is because the domestic composite armor protection ability is not strong enough, but it can be disassembled to facilitate the replacement of more advanced armor in the future, as for the hull armor, it can be hung outside.

It's safer that way.

If there are better materials in the future, they can be replaced, but now if he wants to urgently improve the protection of the tank, Qin Feng only knows the depleted uranium armor, no way, what kind of material the armor of the 99 tank is, and he doesn't know it.

The only thing I came into contact with was the gossip that was circulating, such as the fact that there is advanced technology in China, which can punch holes for silicon carbide and the like.

Qin Feng can be regarded as telling all the techniques he knows, this restraint reaction armor is a new thing, and by stuffing the existing composite armor into it, the ballistic resistance can be greatly improved, which can be regarded as a contribution to Zhu Lao.

Zhu Lao and the others were immersed in the brand-new bulletproof mechanism that Qin Feng said, and after more than ten minutes, Zhu Lao spoke again: "Yes, this plan is feasible, let's go back and try it, but... We still want to try your materials, Xiao Feng, can you sell us some materials for the helmets and body armor you produce? ”

"No money." Qin Feng said: "How much you want, I will give you." If you think it's easy to use, let's talk about the production technology. It's just that our current bulletproof inserts are curved, and the tank needs a flat plate, and when we produce a few pieces, we will send them to you. ”

Qin Feng is very generous, if this thing is purchased in large quantities by the troops, of course he has to settle the accounts with his brothers, but if he just wishes them to do experiments, then he can give it for free!

"How can this work? You are a private enterprise. We've got to pay for it. ”

"Private enterprises also have responsibilities and awareness." Qin Feng said: "Without the strength of the motherland, can we have a peaceful and stable environment?" Without such an environment, can our private enterprises develop? We should do our best to help the development of the motherland's military industry. ”

"Xiao Feng, on behalf of my team and the military industry of the motherland, thank you!" Zhu Lao was very emotional.

"No thanks, if you need anything in the future, just call me and I'll come to you."

Seeing off Zhu Lao, Qin Feng returned to Santanari and skillfully twisted the key.

Whoa... Whoa...

The sound of snoring teeth sounded, and Qin Feng reacted: he didn't turn off the engine just now, the engine was still spinning, so he continued to ignite, the starter's spinner wheel and the engine's gear ring collided violently, if it was broken...

Qin Feng slammed the accelerator twice, emptied the carbon deposits that had just been idling for a long time, and then started the car and headed to the Chocolate Building.

The time is already more than four o'clock in the afternoon, and the matter of finding a house can only wait for tomorrow, Qin Feng can just take his wife home.

Sitting in the co-pilot of Santana, Zhao Jiao talked about the company.

All kinds of business have been arranged by Zhao Jiao in an orderly manner, and she is fully qualified for this job.

"Well, Zhao Jiao, it's good, by the way, are you looking for a house today?"

Zhao Jiao's face showed a happy smile, Brother Feng didn't forget this incident, just now I thought Brother Feng had forgotten, and I was a little disappointed.

"I've already found it, and I guess I'll be able to do it soon... Brother Feng, if you buy a few courtyard houses, it's too expensive, do you think we can slow down? ”

Zhao Jiao began to worry about money again.

"What is the delay, marriage can't be delayed." Qin Feng said: "We have to have a house, we have to have a car, the time is still very tight, it will be the Mid-Autumn Festival in a few days, and I don't know if we can have time... If only you could drive. ”

Where is the boss driving, the secretary driving is enough to save face.

Zhao Jiao looked at the steering wheel: "Brother Feng, I've been learning recently, I don't see many people on this road, can I try?" ”

"Absolutely."

The car stopped, and the two switched places.

In the 80s, most of the trucks were still state-run, there were no big caps to manage overloading, fines, etc., and cars were only allowed to sit in the status of the person, let alone check the driver's license to see if it was driving without a license.

Zhao Jiao has learned from Da Liu intermittently, and she already knows the basic operation, but she needs to be proficient in road knowledge.

Zhao Jiao sat in the driver's seat, stepped on the clutch gear, released the clutch and stepped on the accelerator, and with a swish, the car jumped out.

Qin Feng's left hand is placed on the position of the handbrake, this is not a coach car, there is no deputy brake under the co-pilot's feet, in case of any accident, Qin Feng can only pull the handbrake to help.

Fortunately, this is a manual transmission, even if the first gear is the throttle to the end, the speed is very slow, if it is an automatic transmission, one foot of the throttle down, the speed of the swish car may break hundred.

"Okay, don't worry, now shift to second gear."

Hang up the third gear, the throttle hit two thousand, the speed of thirty or forty is just right, Qin Feng sat in the co-pilot, looking at Zhao Jiao who was concentrating on driving, as long as Zhao Jiao drove it in the morning and evening rush hour in the future, it wouldn't take long to train it.

Even if it is a driving school training in later generations, it is only the own clan that comes out, and there must still be skilled people to guide by the side.

"Brother Feng, how do you see me driving?"

"Well, it's okay."

"I want to shift into fourth gear."

"Don't worry, let's open it like this first."

"I think it's a little slow."

"Okay."

Zhao Jiao throttle accelerate, then turned his head to look at the gear lever, at this moment, Qin Feng suddenly shouted: "Quick, step on the clutch with your left foot, and switch your right foot to the left to the brake!" ”

Qin Feng is experienced, and when he encounters a situation, if he directly talks to the female driver about the brake, she will definitely not be able to react, so she has to refine this prompt, how about the left foot, how about the right foot, so that it may be useful.

Now the speed of the car is a little fast, and it is easy to hit horizontally if you pull the handbrake directly.

Fortunately, Zhao Jiao didn't reach out to hold her eyes, her left foot and right foot followed what Qin Feng said, and the sharp brake sound sounded.

Fortunately, there was no big truck behind.

The car stopped steadily, only a dozen centimeters away from the bicycle jumping sideways in front of him, Qin Feng was a little annoyed, man, can't you take a look when you cross the street? He slammed open the car door and walked down.

"Hey, I said, how are you... Hey, Senior Brother Pang, why are you? ”