Zhuang Jianye scolded in his heart, Lin Guanghua's rammer, why did he tell Ding Laixiang everything, is the old man your father?

But think about it, the tutor of the graduate student is really no different from the father in these years.

Yes, the two sets of equipment proposed by Ding Laixiang are really available in the Tengfei Factory, which were just imported from West Germany not long ago, and these two sets of equipment are worth more than 3 million US dollars, which consumes almost one-third of the Tengfei Factory's annual foreign exchange quota.

When Zhuang Jianye made this decision, he almost crushed his teeth, no way, this is the largest external procurement project in the history of Tengfei Factory, more than three million US dollars, almost the sum of the profits of electric fans in two years, it is absolutely a lie to say that it is not painful.

But even if it hurts, Zhuang Jianye still bought it, for the simple reason that the small jet engine in the factory has entered a critical stage.

Speaking of the jet engine development organization of the Tengfei Factory, it is no longer the grass platform team that Master Ju and Liu Chun privately saved up at the beginning, and now it has a proper name for the organization, called the Jet Power Office of the Tengfei Factory.

As for the director of the office, it is neither Liu Chun nor Master Ju, but Yan Tiancheng, the former director of the trial production office of Yonghong Factory and Zhuang Jianye, who just retired from Yonghong Factory not long ago.

When Zhuang Jianye was in the trial production office, Yan Tiancheng's head was sharpened into a sharp mind to drill up, and he talked more about politics than technology in the trial production office day by day, so that people felt that this old guy was a layman leading an insider bureaucrat, in fact, Yan Tiancheng was one of the few technical backbones of Yonghong Factory with a full set of trial production experience of turbojet engines and turbofan engines in his early years.

Even today, his experience and technology are not comparable to ordinary people, and even in this life, starting with the turbojet 6, the turbojet 7, the turbofan 6, the "Spey" MK202, and even the reverse mapping of the high-power turbofan engine on the crashed large aircraft in Krai.

Yan Tiancheng did not simply participate, but went through all the processes completely, not one, but several.

This is amazing, there are so many domestic aero engines, Yan Tiancheng has done almost all of them, it is simply a baby.

In fact, Yonghong Factory really regarded him as a baby, and the reason why he participated in the aero engine process back then was to train the technical backbone and leading cadres of aero engine production in the future for Yonghong Factory.

However, Yonghong Factory did not fight and lost the opportunity to produce engines again and again, but even so, Yan Tiancheng was still reused and became the leader of the trial production office of copper head and iron tail.

According to the normal situation, Yan Tiancheng will be promoted to deputy factory director, and then retire from the party committee of the factory, but unfortunately, after a series of transformations of Yonghong Factory, young cadres began to be promoted, and elderly cadres like Yan Tiancheng began to be gradually marginalized.

At the end of last year, he officially stepped down as the director of the trial production office and was arranged to a second-line position as a leader.

After getting the news, Liu Chun and Master Ju, who often fried the engine, immediately came to the door, and worked hard for more than half a month, and finally asked this old baby to go out of the mountain again and hire Tengfei Factory to serve as the director of the newly established Jet Power Office.

The new official naturally has to burn three fires, not to be a bureaucrat, and the three fires of Yan Tiancheng, who has re-assumed the position of technical leader, are burning very strongly, first of all, Liu Chun and Master Ju are severely criticized, and they dare to engage in drone jet power without even a little common sense of system integration, which is almost like death, and he is ashamed to say that he saves money, is jet power a money-saving thing?

The second is to return to the Yonghong factory, find a large number of protégés of the trial production office, and tell them that they are idle, it is better to help him do the trial production, it is not in vain, the test bench will pay for the use of the Tengfei factory, and it is also regarded as the welfare of his old leader for their protégés.

Yan Tiancheng has been the director of the trial production office for seven years, and the prestige of the trial production office is within the reach of people, coupled with the cash cow of the Tengfei factory, a lot of money is thrown away, and the trial production office immediately goes crazy, and I can't wait to start Yan Tiancheng's trial production task the next moment.

After that, he found Zhuang Jianye, an old subordinate, and politely took out a lot of purchase lists and bills, which made Zhuang Jianye's eyes dizzy.

also said to Yan Tiancheng politely: "Can we save some?"

Yan Tiancheng smiled brightly: "This is already the most provincial." ”

Yes, although the list given by Yan Tiancheng is staggeringly expensive, it is indeed the most economical plan that the old man has carefully considered, even if the electron beam welding machine and high-speed hydraulic cutting machine worth more than three million US dollars are the key equipment that must be used.

Although the jet power of drones is less difficult than that of high-thrust jet engines, it is actually quite difficult to have a long service life.

Titanium alloy should be used as well, and heat dissipation should also be dissipated, let's talk about the turbine cover and fan cover of the engine combustion chamber selected by Yan Tiancheng.

That is the proper material on the high-power turbojet engine, in order to achieve the high temperature resistance index, the surface is sprayed with a variety of high-temperature resistant alloys and carbide ceramic coatings.

It is because of this ceramic coating that the damage rate of the material is extremely high during cutting and processing, because ordinary mechanical cutting due to the vibration that cannot be eliminated and the inherent accuracy problem, resulting in the material is either sprayed and falling off, or the accuracy after processing is not up to standard and needs to be reworked.

A little more advanced laser cutting is not a concern about vibration, but unfortunately the laser is cut at high temperature, and the ceramic coating on the material is just a good high-temperature insulator, so laser cutting is equivalent to doing a heat resistance test for the material.

Only high-speed hydraulic cutting can solve these problems well, not only to cut the material, but also to ensure accuracy.

In Yan Tiancheng's words: "In the early years, we were closed, and we didn't know that there was high-speed hydraulic cutting abroad, which made us worry when we looked at the materials, and we couldn't do large-scale industrial production, no matter how good the materials were, the turbofan 6 was so nothing, so yes, Xiaozhuang, you want to use vortex spray on the drone, this thing can't be missing." ”

High-speed hydraulic cutting is indispensable, and the electron beam welding machine is even more indispensable, because Yan Tiancheng changed the conservatism of Liu Chun and Master Ju, and the key components in the turbojet engine of the Tengfei factory can be made of titanium alloy, and no low-carbon alloy steel is used, and the best welding method of titanium alloy is electron beam welding.

Zhuang Jianye is not a person who does not know how to do it, not to mention the two pieces of equipment that Yan Tiancheng wants, not to mention now, will also be indispensable key equipment in the aviation field in the future.

But I didn't expect that the old Ding would be smashed with red eyes, looking at this appearance, Professor Ding wanted to copy Director Yan's bullish spirit and blackened himself, the problem is that the money of the Tengfei Factory is not blown by the wind, and the vacuum brazing device is not enough?

So after thinking about it, Zhuang Jianye looked at Professor Ding with an embarrassed face: "Professor Ding, I think Guanghua also told you, two sets of equipment are not only expensive, but also not easy to buy, Tengfei Factory has already used the strength to eat milk with such a set, it is unlikely to get a second set, you see if this will work, you let Professor Qian take someone to my place, you can use the equipment as you want......"