But no one is idle to pierce this layer of window paper, because everyone who can be here knows that the weight of the country is really heavy.

Therefore, before this topic could arise, it was directly ignored by these unit leaders and technical officers, and continued to evaluate the EDM CNC equipment equipped with Tengfei Aviation Power.

This explains why there are so many EDM CNC machine tools, but there is no special EDM drilling equipment for turbine blades, to make supporting aerospace products, they engage in a bunch of bottles and cans, and they don't need this thing, but the result is to add a short board to Tengfei aviation power, which can not but be said to be a pity. ”

Realizing that Tengfei Group is supporting professional equipment for aerospace, and after listening to other people's comments, the head of the air force sighed, and his tone was a little lost, turbine blade drilling is the most difficult and high-end process for aero engine production, because this process hole is nothing else, it is the air film cooling hole of turbine blades.

The EDM process is precisely one of the most suitable processes for this type of process hole, and as a result, the head of the Air Force searched for a long time, but did not find similar equipment, so he issued similar regretful words.

As a result, just when the head of the Air Force was about to continue to express his opinions and complain that the aerospace department was a little biased in the balanced development, he heard Liu Chun, who was at the front, say loudly: "This leader's question is good, we don't have special EDM CNC hole processing equipment......

As soon as these words came out, the head of the air force who was still regretting a moment ago, the expression on his face immediately froze, and Tengfei Aviation Power has professional EDM CNC hole processing equipment?

Just when the chief was puzzled, Liu Chun pointed in the opposite direction: "Where is the NB-620 EDM CNC punching machine, which is mainly used for the process hole processing of the annular combustion chamber of the aero engine, the outer honeycomb component and other parts......"

Liu Chun's face was still full of smiles, and the strange face of the officer who had just asked the question in front of him, this old man was like he hadn't seen it, he still spoke confidently and powerfully, and he called it a slip to play with the concept of stealing.

The head of the air force who fell behind had the same doubts, his face was also ugly, he had already seen that equipment, as long as he was not blind, he could see that it was processing the process hole of the annular combustion chamber of the WD-30S turbofan engine, but it was also a process hole, and the air film cooling hole on the annular combustion chamber and turbine blades was not a rank at all.

"Mr. Liu, you may not understand what I mean, you said NB-620 EDM CNC punching machine just now we have noticed, is a good precision equipment, but what we want to know more is, does your company have special processing equipment for precision holes of turbine blades derived from EDM CNC technology?"

Just when the head of the air force unit and the others were a little annoyed by Liu Chun's gushing introduction, and some couldn't help but prepare to ask themselves, the technical officer who asked the question just now finally asked what he wanted to ask while Liu Chun was pausing to breathe.

Of course, the attitude is very polite, there is no way, his level is still very low compared to the other leaders of the troops who carry the generals, so naturally he can't be as straightforward as those leaders.

But the words asked were still clear-cut and did not beat around the bush, which made many leaders who were distracted by some unique production and processing equipment refocus on Liu Chun.

In fact, there are not many people who find similar problems, but many people have not digested the situation of other equipment and have not come to remember to ask.

Liu Chun didn't expect to be discovered so quickly, he was slightly stunned, turned his head to look at Zhuang Jianye, who was communicating alone with the head of the headquarters, and saw that he had no reaction, and his heart was clear, and the general smile of Maitreya Buddha appeared on his face again, and he still said confidently to the leaders and leaders who looked at him: "We do not have special EDM CNC hole processing equipment for the turbine blades of aero engines, especially high-pressure turbine blades, because we delivered this process to the NB of the No. 8 workbench - Model 711 electrochemical hole processing equipment. ”

As soon as these words came out, the technical officer in front of him frowned, and the face of the head of the air force unit behind everyone was also full of doubts.

NB-711 or something, they automatically ignored it, obviously this very unlevel model naming belongs to the Tengfei Group's own problem, but what the hell is the electrochemical hole processing equipment? Why haven't I heard of it before?

Not only these two people, but other leaders and leaders who have some understanding of aerospace production are very busy, and they all know all kinds of hole processing equipment, but they have never seen electrochemical hole processing equipment.

"The pre-turbine temperature of our WD-30S turbofan engine is 986 degrees Celsius, but the improved pre-turbine temperature of the WD-30SF turbofan engine has increased to 1228 degrees Celsius, in the case of the same quality of the two engines, the reason why there is such a significant jump is due to the NB-711 electrochemical hole processing equipment for the precision machining of the turbine blade air film cooling hole, leaders and leaders, please go here, No. 8 workbench is over there. ”

Just when everyone was puzzled or confused, Liu Chun suddenly threw out a blockbuster data, which immediately caused an uproar, that you must know that if the aero engine does not increase by 100 degrees Celsius, the thrust will increase by 20%.

From the WD-30S turbofan engine to the WD-30SF turbofan engine, the temperature before the turbine has increased by 242 degrees Celsius, and the performance has jumped by nearly 50%!

In other words, the thrust of the WD-30S is 586 kg, and with a 50% increase in thrust, the thrust of the WD-30SF is 870 kg.

870 kg!

This thrust is enough for the power of a small aircraft, and if a twin-engine is used, it can even meet the needs of a light intermediate trainer who is worried about power.

After all, the thrust of the TFE-731 turbofan engine produced by Honeywell in the United States was only 1,600 kilograms, but the total mass of the engine reached 350 kilograms.

The total mass of the WD-30S turbofan engine is only 142 kg, that is to say, the WD-30SF is only because of the improvement of the process, so that the thrust has been increased by 50%, and the total mass of the two engines is less than 300 kg, but the total thrust exceeds the single-engine TFE-731 turbofan engine.

This can no longer be called good news for a light intermediate training aircraft that was shut down because of the power plant, but super heavy subversive news.

Because of this, the eyes of the leaders and leaders who have been concerned about the progress of a light intermediate training aircraft suddenly lit up, and even the head of the headquarters subconsciously looked at Liu Chun, who had already walked towards the 8 good workbench, and turned his head to look at Zhuang Jianye: "Is it the improved model reported last time?"

"I've made another performance improvement, and I thought I'd report it to the headquarters when the test was completed, so you're here. Zhuang Jianye was unashamed and smiled.