Zhuang Jianye's face twitched, he really didn't expect that the snakeskin bag was filled with the most cutting-edge aircraft manufacturing materials in the world's aviation field today, honeycomb sandwich structure components.

Hurriedly and carefully picked it up from the desk, opened the snakeskin bag, and took out a metal plate the size of a washbasin and about 20 centimeters thick.

With a cushion by hand, although you can feel that it is made of metal and the thickness is considerable, the overall weight is very light, lighter than a real enamel basin.

The two palms clamped the plate to squeeze it inward, but Zhuang Jianye used a lot of strength, not to mention the light plate on his hand, not to mention the damage, there was no deformation at all.

Zhuang Jianye nodded with satisfaction, then put the honeycomb component in his hand back on the table, and then asked Song Yanan: "Did Lin Gong read it?"

Not to mention Lin Guanghua is okay, as soon as he said it, Song Yanan complained angrily: "How else can I say, I still feel that the cost is too high, let me find a way to continue to reduce the cost, I have replaced the two-sided plate from T500C carbon fiber composite material to relatively cheap aluminum-lithium alloy, the cost has been reduced by one-third, he is not satisfied, if it is lowered again, I can only change the aramid paper honeycomb of the composite material in the middle to aluminum honeycomb, so that it can be reduced by half." ”

Hearing this, Zhuang Jianye also had a headache.

Because the improved Yun 5 to achieve a jump in performance on the old Yun 5, it is necessary to add a lot of supporting equipment, if the improved Yun 5 continues to use the structure and materials of the old Yun 5, it will inevitably lead to a decrease in range and load capacity.

This is nothing short of a disaster for the improved Y-5.

Therefore, how to achieve leapfrog progress in performance without affecting the original flight quality of the improved Y-5 is an unavoidable problem for Tengfei Aviation Manufacturing Corporation.

This is estimated to be blind if it is placed in other aviation manufacturing enterprises, and it is necessary to know that safe and reliable lightweight aviation materials are much more difficult to do than pressurized cabins.

Even if the company can get the relevant technology from other channels, it is very troublesome to think about it, because there are too many things involved in a new material.

First of all, it is a hurdle to build; secondly, it is a variety of analysis of new materials to see if other materials at hand can match with new materials; then it is an attempt to see if the existing equipment is suitable for the processing of new materials; and then ......

Anyway, all kinds of things are complicated and boring, and it is difficult to fully understand the properties of new materials without two or three years of effort, and such progress is too touching.

However, the hard bones that other factories can't solve, Tengfei Corporation, an alternative enterprise that fell on the pressurized cabin, has no difficulty.

The reason is that the aviation technology research and development center has been established for many years.

Although the name sounds scary, in fact, this R&D center mainly does one thing, that is, the preparation, production and terminal processing of carbon fiber composite materials and various aviation materials derived from them.

Starting from copying the T300 composite materials provided by Company H, the Tengfei Aviation Technology R&D Center first perfected the process technology of the T300 composite materials, and then successfully copied the T500 carbon fiber composite materials provided by Company H.

On the basis of these two composite materials, the Tengfei Aviation Technology R&D Center continues to explore carbon fiber composites with higher performance, and also derives several derivative material projects of composite materials.

One of them is aviation stealth materials that even Qin Hongjun does not know much about.

This is a fiber weaving method for the mirror effect of radar waves that Song Yanan inadvertently discovered when developing the follow-up enhanced version of the T500 carbon fiber composite material.

At that time, Song Yanan didn't think anything of it, it was just an experiment, and it was still far from a higher-level carbon fiber composite material, so it was regarded as a daily experiment and reported to Zhuang Jianye with a briefing situation.

Zhuang Jianye knew at a glance that this was a terrible matter, and while increasing investment, he actively contacted the troops, hoping to share some pressure in terms of funds.

Although the funds for the troops are also very scarce, they feel that the materials that can be used for radar stealth are of great military significance, and the Tengfei Factory will share the research and development funds, so they agreed without hesitation.

As a result, the originally inconspicuous Tengfei Aviation Technology R&D Center has become even more inconspicuous.

So much so that except for Zhuang Jianye and several other core executives of Tengfei Aviation Corporation, ordinary employees can't tell what this organization does.

As for the stealth material, even fewer people know about it, and only Zhuang Jianye knows about the top management of the entire head office.

Of course, stealth materials are only one aspect, and there are many other derivatives, among which the composite honeycomb sandwich structure is the most practical one among many derivatives.

As early as when the T300 carbon fiber composite material was first put into production, Song Yanan and others began to try the composite honeycomb sandwich structure, but the T300 carbon fiber composite material strength at that time was average, and the internal sandwich still had shortcomings, so there was no large-scale application.

Only by changing to T500 composite material, the aramid paper honeycomb based on composite materials has also made a breakthrough, which completes the second generation of carbon fiber composite honeycomb structure.

But at this time, Tengfei factory is undergoing three transformations, and the foreign H company is very happy, and the domestic bigwigs are also inseparable, coupled with the new compound material-based aramid paper honeycomb created by the Tengfei Aviation Technology R&D Center is not mature and the production capacity is insufficient, so it will soon be gone.

It was not until March this year that Song Yanan and others developed a T500C carbon fiber composite material with better performance, and solved the stability and production capacity of aramid paper honeycomb based on composite materials, and the third-generation carbon fiber composite honeycomb components had use value.

It is precisely at this time that Tengfei Factory began the fourth transformation and officially entered the development of manned aircraft, and the third-generation carbon fiber composite honeycomb components can be said to be at the right time, which can be applied to the improved Yun-5.

However, this good news did not make Zhuang Jianye and others happy for long, and they were so shocked that they almost cried out by the cost reported by Song Yanan, no way, the cost of carbon fiber composite materials is too expensive.

Although the price is not as exaggerated as gold, it is not far from this level.

If this is just to witness a miracle and make a debut at the peak regardless of the cost, the problem is that the improved Yun 5 of the Tengfei factory is to be introduced to the market to make a small amount of money.

Good quality and low price is the positioning of the improved Yun 5, which is like luxury jewelry, few people can afford it, and what kind of money do you make?

You must know that the country is not rich enough to spend a lot of money, so it is imperative to cut costs.

As a result, there is a simplified version of the honeycomb component on the desk with an aluminum-lithium alloy backsheet made of two-sided backsheet and aramid paper based on composite materials as a honeycomb structure.