Chapter 826

It's true.

If the previous aero engines of Tengfei group can only be used in the circle of UAVs and light aircraft, then the wd-52ml turbofan engine is really coming into the market.

This turbofan engine with a maximum thrust of 5.2 tons is developed by Tengfei group on the basis of d-50 turbine gas power plant.

D-50 gas turbine power plant, as the basic model of gas turbine for small naval ships, has been serving the Navy, offshore drilling platforms and some civil ships as marine power for many years.

The reason why the aeroengine model was not developed immediately is that the weight of the d-50 turbine gas power plant is too large, and the weight of the whole machine has been maintained at about 1.5 tons.

As marine or ground power, 1.5 tons is nothing, but it is too big for aeroengine, which seriously affects its thrust weight ratio.

It's not that Tengfei group didn't want to reduce the weight of d-50, but it took several years to use a lot of methods, and the effect was not obvious. There was no other reason. It was just that Tengfei group fell into the problem of failing in advanced aero-engine materials.

At that time, Tengfei group had already brought ordinary nickel alloys to the extreme. Although the most cutting-edge ceramic based, carbon based and aluminum titanium alloys have made great progress, and even started small-scale application in some places, the stability of these cutting-edge materials was slightly poor, and the key components such as turbine disk, transmission shaft, rotor and combustion chamber of aviation engines could not be applied, Therefore, even if Tengfei group has broad future prospects, it has to face a very realistic problem.

How to deal with the gap between traditional nickel alloy and future advanced materials?

Powder Superalloy is the solution given by aviation powers such as the United Kingdom and the United States. Among them, the most representative is the general Rene series materials, which are used in the famous cf-6, cf-34, cf-56, f-110 and other advanced aero engines.

It's no exaggeration to say that Rene series materials are the key factor for the advancement of aeroengine.

And Tengfei group is almost blank in this aspect, let alone Tengfei group, even the progress of Powder Superalloy in the whole country is not optimistic.

No way. It belongs to the strategic material in the strategic material. All countries in the world provide it as a treasure. It belongs to the kind of real good things that can't be bought at any cost.

If you can't buy it, you have to do it yourself in China. But it involves metallurgy, materials, mechanics, basic chemistry and many other disciplines. The aviation powers like Britain and the United States rely on more than a hundred years of experience. In addition to the achievements made by bringing together the world's top talents, the modernization process is less than half a century. How can we compare the whole country's ability to meet the needs of food and clothing in China?

It is based on this reality that the second generation core aircraft of Tengfei group will set a development goal of more than 10 years. There is no way to solve the problem of powder high temperature alloy technology in a short time. Even if it is solved, it will lag behind the aviation powers such as the United States and the United States. Therefore, we can only aim at the third generation aircraft engine materials and try our best to overtake at the corners.

Based on a variety of practical problems, the status of d-50 turbine gas power plant in Tengfei group is actually very embarrassing. Originally, Tengfei group expected that the only gas power plant that can reach 4000 kW power of Tengfei group could be rapidly formed, so that the next haidongqing plan of Tengfei group could continue to be promoted, so as to achieve the goal from the mid-1990s to the beginning of the new century This window of opportunity for the large-scale upgrading of regional airliners at home and abroad is expected to bring huge benefits.

However, due to the material difficulties, the d-50 turbine gas power plant is just like the second generation core on the road to the realization of aero-engine, which is difficult.

There is no way. Tengfei group can only look abroad and hope to solve this problem by introducing medium thrust engines. After all, there are few opportunities for the replacement of regional airliners in a lifetime. Since we can meet them, we can't let them go.

The problem is that the introduction of engines can solve the problem, but relevant manufacturers also have many restrictions on Tengfei group. For example, Pratt & Whitney requires that the regional aircraft with Pratt & Whitney engines produced by Tengfei group must obtain the airworthiness certificate in Europe and America, otherwise they will never be sold.

Because Pratt & Whitney does not know whether the haidongqing series regional airliner of Tengfei group meets the aviation safety standards, it is afraid that the airliner will be sold frequently and the brand will be smashed.

RORO company in the UK is a little better and not so harsh. However, it requires that the Tengfei Group Regional airliner with RORO engine can only be sold in East Asia and Southeast Asia. It is better not to interfere in other places, because RORO has shares in the airlines in Brazil and Canada. RORO does not want competition between them to affect the proportion of RORO engine.

As for general motors, it doesn't even pay attention to Tengfei group. Why sell you the engine? There are so many aviation manufacturing companies in which GM shares, and its own people are still too busy to take care of outsiders?

The attitude of the world's three major aero-engine manufacturers is not the same, but one is the same as what was negotiated, that is, the regional airliner equipped with their aero-engine can only be limited to the civil field, and can never be used for military purposes, otherwise the maintenance of aircraft engines and the supply of spare parts will be stopped.

The reason why Tengfei group has been able to stagger to the present is that it has been walking on two legs. If it lacks the military field, it is equivalent to cutting off one leg of Tengfei group. If the domestic aviation market is mature, the problem is that the current domestic aviation market can only be said that it will start, and it can not support the aviation manufacturers like Tengfei group.Therefore, Tengfei group is very entangled in the introduction of engines. It is estimated that it will be difficult to remove them all its life if it is introduced. If it is not introduced, will it have to watch huge market opportunities pass by?

Just when Tengfei group was puzzled by how to make a choice, the Institute of Aeronautical Materials suddenly came a good news that inspired the whole group. The Nickel Base Powder Superalloy project led by the Institute made a breakthrough. It successfully surpassed the first generation Powder Superalloy and prepared the second generation Powder Superalloy. After testing, its performance was no less than that of rene80 material of general motors Material.

When this news was announced in the industry, other aviation factories were just stunned. Then, the company should be praised and congratulated. Only Tengfei group took action quickly and took 10 million yuan to dig the second generation powder high temperature alloy technology patent together with two metal metallurgy technology experts working in the Institute of Aeronautical Materials to Tengfei group.

In fact, at that time, Zhuang Jianye was aiming at a former Soviet material expert who worked in the Institute of aeronautical materials. The reason why the Institute was able to achieve the breakthrough of Powder Superalloy technology from scratch and across generations was inseparable from the technical guidance of the former Soviet expert.

As a result, the Institute of aeronautical materials is no longer in charge of protecting Duzi. Even the headquarters and ministries all say hello to Tengfei group. As soon as Zhuang Jianye sees that he can't find the right person, he can find his students. In this way, Tengfei group uses "money ability" to build its own high temperature metal powder research team out of thin air, and soon makes a breakthrough, producing nickel based high temperature metal powder turbine disk and nickel based high temperature metal powder Alloy single crystal turbine blade.