Chapter 1578

The reason why Zhuang Jianye has such confidence is that in addition to the cost reasons mentioned above, another key factor is also the basis for everything, that is, China's take-off has mastered a large number of advanced technologies and leading process manufacturing capacity.

This is the fundamental reason why the cost of diamond monkey-2c is so low.

The t-nb525 aluminum lithium alloy used by it has benefited from the accumulation of China's take-off in this field for many years. It has not only formed a complete industrial chain, but also reduced the material price of this category by 60% within ten years by relying on super technology and experience.

Not only will the European aluminum industry fully supported by Europe be completely killed, but also Europe has no voice in aluminum lithium alloy, a key aviation and aerospace material; It also puts great pressure on the North American aluminum industry in the United States, which is struggling to support it with the attitude of losing money for years.

As for the aluminum lithium alloy industry in Japan and Russia, it is basically destroyed by China's booming aluminum lithium alloy.

The reason why China's take-off will become the ultimate overlord in terms of aluminum lithium alloy is mainly due to the in-depth development of rare earth.

As early as the mid-1990s, China's take-off had already entered the field of rare earth. At that time, the domestic rare earth industry chain was still very backward, basically similar to the big dog households in the Middle East, mining and selling the mine.

What deep processing does not exist at all, so that it has endured the exploitation of foreign scissors for a long time.

With the domestic opening of rare earth technology to a number of powerful high-tech enterprises such as China Tengfei, the situation began to change. Take China Tengfei for example. After more than ten years of development, China Tengfei has mastered the complete industrial chain from rare earth mining, smelting, separation to becoming the final industrial product.

Its annual mining and separation of rare earth semi-finished products accounts for 35.6% of the world's total supply.

In the words of a rare earth expert in China, even if China takes off and does nothing, it can make a lot of money just by mining and separating rare earths.

However, with such a high proportion, China's semi-finished products provided to the international market account for less than 5% of the total.

The rest has been digested by other business areas of China Tengfei.

For example, the optical components on China's take-off optical satellite need a large number of elements separated from rare earths; There are also rare earths in the semiconductor manufacturing process; As for aviation and aerospace manufacturing, a large number of rare earths are also needed.

For example, a high-temperature alloy material, t-nb359b nickel base alloy, developed by China Tengfei Aviation Materials Co., Ltd. (Group) in 2003, creatively added cerium separated from rare earth, so that the ordinary nickel base alloy, which could only be between minus 20 ℃ and 360 ℃, not only expanded the temperature range to minus 230 ℃ to 700 ℃.

Moreover, at a high temperature of 650 ℃, t-nb359b nickel base alloy still maintains good fatigue resistance, oxidation resistance, radiation resistance and corrosion resistance, especially in the key index of yield strength, which is almost the strongest of the same type of materials.

It is precisely because t-nb359b nickel base alloy has such excellent properties that once it was published, it has won large orders from major domestic giants.

Among them, China's nuclear power procurement is the largest, because this alloy material that can still maintain good condition at high temperature can be said to be the most ideal material for nuclear power plant reactors.

Chinese ships also purchase a lot, because they lack such a key material in the nuclear reactor of the new generation of nuclear submarines built for the Navy.

On the future nuclear powered aircraft carrier planned by Chinese ships, t-nb359b nickel base alloy also has an irreplaceable position.

As for China Tengfei itself, it is also a large user of t-nb359b nickel base alloy and the turbine blade of small aeroengine; Turbine disk and high pressure turbine blade of medium aeroengine; The turbine shafts of high thrust aeroengines are the application range of t-nb359b nickel base alloy.

In addition, t-nb359b nickel base alloy also has very broad applications in the fields of chemical industry, electric power, petroleum and so on.

Because of this, t-nb359b nickel base alloy has no export opportunity at all. Several large and medium-sized enterprises in the country give baoyuaner. This is not enough. Every quarter, several giants urge China to take off, speed up production and deliver goods quickly!

This is true for nickel base alloys that are already popular, not to mention aluminum lithium alloys with a wider range of applications. As early as the late 1990s, China Tengfei began to try to add rare earth elements to aluminum lithium alloys, so as to improve the properties of aluminum lithium alloys.

For example, China Tengfei tried to integrate the anti elements extracted from rare earth into aluminum lithium alloy to make it have better weldability and excellent heat treatment characteristics.

This is only a basic aluminum lithium alloy disclosed by China Tengfei.

Similar to the t-nb525 Al Li alloy used in the diamond monkey-2c launch vehicle, the description document only indicates the application of rare earth elements, and there is no specific content.

There are three similar brands of aluminum lithium alloy in China Tengfei. Different brands of aluminum lithium alloy can be used according to different product application scenarios.

For example, t-nb515 series aluminum lithium alloy used in aircraft skin highlights the processing capacity; Another example is t-nb545 series aluminum lithium alloy used in aircraft truss, which highlights yield and resistance; In addition, the t-nb535 series aluminum lithium alloy used on cruise missiles is highlighted as cheap.

T-nb525 series Al Li alloy is more like a combination of the above four, which not only has low cost and strong processing capacity, but also has strong de yield strength and bearing capacity.

Of course, in addition to high-level materials, advanced processing technology is also indispensable. In this regard, China's take-off is a unique trend. When t-nb525 series aluminum lithium alloy leaves the factory, the inner surface has its own special stiffener grid.

At present, apart from North American aluminum in the United States, only China Tengfei has mastered this technology.

As for other manufacturers, they can only give you an aluminum lithium alloy whiteboard. What kind of stiffeners they want can only be bought back and engraved by themselves.

However, China Tengfei finished this step by using its own chemical milling and washing process before the materials leave the factory.

Not to mention, because of its precise milling and washing, others can't copy it even if they want to, because the proportion of that process is very exquisite. If there is a slight difference, the whole material will not be scrapped.

After such semi-finished parts are received by the processing plant, they only need to carry out rapid cutting on the outer surface, and the thinnest can be 1.5mm, without worrying about the material strength, because the special grid stiffener in the north is strong enough.

The thickness of the hydrogen fuel storage tank of the diamond monkey-2c is 2.5mm, and the t-nb525 aluminum lithium alloy used in the launch vehicle is only 4.5mm. Therefore, looking at the diamond monkey-2c, a large number of metal materials are used, but the overall quality is not high.

However, if you want to do this, it can't be done by any country. You know, the 4.5mm thick metal is basically the same as paper, and the yield is soft in a mess. It's hell to maintain the huge impact force when the rocket is launched.

However, the t-nb525 series aluminum lithium alloy produced by China Tengfei can do it. There is no way. In addition to the excellent material itself, the excellent chemical milling and washing technology is indispensable. The Russians now play with the stupid card left over from the Soviet era, and the higher-level chemical milling and washing is not even touched by the door. Under such conditions, they want to copy it, It can only be said to be a dream!