Chapter 468

In this way, Americans not only keep their own core secrets, but also achieve the so-called openness and transparency, and even partially paralyze their competitors.

Because there are really several countries that are catching up with the American public reports, they use carbon fiber resin composite materials to load the bullet body. As a result, they blow up one by one, blow up one by two, blow up one by one, blow up two by two, blow up one by one, blow up one by one, blow up one by two, blow up one by one, blow up one by one, blow up one by two, blow up one by two, blow up one by one, blow up one by one.

The Soviet Union should not say that it has not been fooled by the Americans. This is not to say that the composite materials of the Americans are not good, but that the Soviet Union is rich in resources, has developed smelting technology of various alloys, and has several kinds of alloy materials suitable for long-range missiles. The quality and performance of the alloy materials are not much worse than those of the composite materials produced by the United States.

So it's really hard to copy the Soviet model. In addition to the ultra-high technical threshold, you have to have minerals in your home. It's not a kind of mineral, but almost covers most of the natural derived minerals in the periodic table.

After several times, only the Soviet Union across Eurasia could do it, and the remaining one could not do it, even the later Russia.

Not to mention at home, neither the Soviet Union nor the United States can match. Coupled with the tight technological blockade of the two superpowers, such high-value materials, not to mention at home, even the old powerful countries such as Britain and France, can only obtain a small amount of finished products from the United States.

The Soviet Union doesn't even give the finished products. If you want to, no problem, there are a lot of SS long-range missiles. Just follow the big brother to make sure you can sleep on the side of the missiles.

In this case, it is difficult to make fiber reinforced metal matrix composites. First of all, all kinds of metals and matching fiber materials must be familiar with their properties. This process is not just to learn a few chemical equations, but to reduce to the arrangement and combination of molecules and even atoms.

The experiment, accumulation and analysis is a long and difficult process.

Then the corresponding fiber is generated to match the metal, which is a series of experiments, accumulation and Analysis

Think that's the end of it? On the contrary, these processes have only completed the long march. For example, the electrochemical drilling device used for manufacturing film cooling holes in turbine blades of aeroengines is a typical representative; the titanium aluminum alloy is better than the electrochemical drilling equipment, but it is just as good as that.

Therefore, when song Yanan led a large number of technicians to make titanium aluminum alloy samples according to the Japanese data, there was no joy, only frustration.

Apart from high temperature resistance, other properties of titanium aluminum alloy are simply in a mess. The longitudinal strength is fairly good, but the transverse strength is very weak. When it runs at a high speed on an Aero-Engine Turbine, it will deform even if it is knocked with a vise.

That's all. The low-temperature performance is also not up to standard. The material is easy to embrittle. It's good for other uses. But if it's placed on an aero-engine, it's easy for it to break due to drastic changes in cold and heat.

In other words, pure titanium aluminum alloy has no commendable advantages except high temperature resistance and high price.

How else can we say that some western developed countries' public technical data only focus on the high temperature resistance, and make such a boastful statement without mentioning anything else, and then quietly watch others jump in the pit.

It's said that the Soviet Union's wartime situation is fierce. Compared with those who dig holes in the west, the Soviet Union's wartime situation is pure like a young girl who has just grown up.

Tengfei aviation technology research and development center has encountered such a problem. Titanium aluminum alloy in its current state is not suitable for the high requirements of aero-engine, let alone the core turbine fan blade, that is, the general materials on other parts are not promoted.

If you put it in other research units, you may give it up. Anyway, it's not successful. If you don't stop loss quickly, you'll have to wait for something. However, the corporate culture of Tengfei Airlines stresses that investment must have a return, and it must also be a high return of super profit.

Especially in research departments, no one cares about the salary of scientific research personnel. They only care about the huge return brought by the commodity transformation of research and development projects, because they will get several percentage points of sales share. Compared with this, the fixed salary designated by the Ministry is just like pocket money, and few people care.

Because of this, song Yanan and others are not only disappointed but also deeply unwilling to deal with the titanium aluminum alloy. They feel as if they are not easy to harvest the crops. As a result, they find that the crops are crooked and the sales are not good.

What to do? Naturally, it is to find a way to repack, improve the appearance value, and strive to sell things in other channels. After all, the most fragrant thing is small money. If you fail, you are the old man.