Super military empire

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"If you want to build it, you can build a larger, complete, and well-equipped engine production plant! This is an aircraft engine, not the kind of scooter engine that the 132 factory provides to the Jialing factory..." Management Committee of the Ninth Institute In this matter, there is enthusiasm beyond Liu Yijiu's imagination.

Wang Shunyi and others very much hope to build a good power plant by themselves.

"The original Air Force Fourth Station Factory now only produces some supporting airports to sweep trucks, nitrogen charging trucks, etc. For us, there is no need to build a factory at the beginning and put it directly on the 541 base. That’s fine. If it doesn’t work, integrate it into a workshop. The area around that area is also large...

Wang Yueshan is very concerned about the ability to set up a power workshop outside.

In this way, a group of people from the mountains can be moved out.

At the same time, in the mountains, although all kinds of supporting facilities are complete, they are not convenient in the city. Especially the small terrain in the mountains cannot satisfy their development.Helicopter assembly requires a huge area, and the manufacture of power equipment also requires a huge area.

"Not only aero engines, but we can also produce gas turbines here. Of course, it is best to cooperate with Dongqi on this matter..." Liu Yijiu's ambition is obviously not small.

In the coming decades, the Republic will have a lot of coal power plants, natural gas power plants, and petroleum power plants.

A huge number of gas turbines are required.

"That's it. It's decided like this. Comrade Wang Yueshan will take care of the matter. Xiao Liu still focuses on the production of the turbofan-8. He has to get the engine out, formulate a complete production process, and start production. In the process, it will be tested. Whether the new generation of fighters of the Republic can soar in the air depends on this engine project..." Long Yaohua is also here.

The military is very concerned about the turbofan-8 that has already been released.

Especially in the imitation of the American Emperor's third-generation advanced fighter panda f-14 work smoothly, the engine has become a big problem, how can we prevent them from getting angry?

Even if the Republic Air Force cannot purchase too much, it must at least have production capacity.

The combat radius of the current J-8 II and J-7 is too small, and the ammunition capacity is too small.

"This is no problem. After all, we have experience in producing turboshaft engines and other things." One district was originally in charge of power and technical reserves for helicopters. The Ninth Academy did not originally have technical reserves for fighter jets or other aircraft. Because the third-line factory has established several aircraft manufacturing plants in Qinling and Rongcheng Plain.

Liu Yijiu ignored these things, and once again devoted his energy to the production of engines.

Production is now very critical. Whether these problems can be solved is related to whether the imitation Panda fighter can fly into the sky, and it is more related to the success of the first domestically produced third-generation fighter, the J-10.

The other is not a problem. Although the massive use of titanium alloys has increased a lot of costs, processing is also a huge difficulty, and now we are working to solve these problems.

The construction of the power plant will speed up the research work of the Ninth Academy and even the entire China in power technology in the future.

From the first high temperature and high pressure powder metallurgy to manufacture the rough parts of the engine, and then to forging, heat treatment, machining, and various processes, you can see Director Liu at all times, and deal with front-line technicians and grassroots workers. , Liu Yijiu learned a lot.

Originally, he would think that the problem of the turbofan-8 engine would appear in the assembly process. After all, in order to ensure the performance of the entire engine, the assembly accuracy must be guaranteed. For the 21-level fan impeller, the coaxiality must be guaranteed to be within 0.001 after assembly. .This has higher requirements on the assembly process.

What's more, the current assembly is mainly manual assembly, and automated mechanical equipment does not play a big role in the assembly work.

In order to ensure the accuracy, the Ninth Academy and the 132 Factory have mobilized the most top class 8 and 9 fitters. Even if the accuracy of the 21 class fan impeller cannot reach 0.001 mm after assembly, it should not exceed 0.005 mm. Otherwise, the performance of the engine, The service life and so on will be affected, and it is not known how serious it is.

However, what Liu Yijiu did not expect was that the problem would reappear before the assembly process.

The welding work of the impeller and the welding work of other parts of the engine, there is no way to guarantee stable quality!

"Director Liu, it's not that we don't work hard, we use the same tooling and the same method every day, but the quality of the welds processed is inconsistent..." Huang Ying, as the most skilled person in the entire welder, cannot control it. The processing quality of the weld.

"Is there any analysis of the problem?" Liu Yijiu asked, frowning.

Since the last selection, the welding in the pressurized chamber has been started directly.

In the past few days of welding, there were more parts welds for comparison, and the people inside found out that although these welds are of much better quality than external argon arc welding, for quality supervisors, they are basically not enough.

They hope to achieve a more stable quality to determine the manufacturing process.

"According to our analysis, the main problem may be the insufficient purity of argon..." Qi Hai said embarrassedly.

"The purity of the argon is not enough, so let them increase the purity. You can't let me solve everything, right?" Liu Yijiu's brows tightened."Is there any problem in the middle?"

"Director Zheng said that their technical level is like this..."

Liu Yijiu rolled his eyes when he heard this.

What exactly does Zheng Hao want to do now?

Isn't it that he did not agree to let him continue to expand production?

"We can't solve this problem. We don't have too strong technical capabilities. Moreover, argon is originally a by-product of the oxygen production process, and extraction is not too easy..." Zheng Hao also has difficulties.

Liu Yijiu gave him a white glance, "I don’t care about you so much. Anyway, no matter what the inside story or the difficulty of this matter, I will talk to me later. The purity problem must be improved within a week, even if the cost increases. questionable!"

Only high-purity argon can ensure high-quality welds.

"Maybe there is also the problem of your pressurized cabin!" Zheng Hao said dissatisfiedly.

But this reminded Liu Yijiu.

When the argon gas was filled in the working cabin, the air inside was not exhausted, and when the workers waited in the pressurized cabin outside, they also did not exhaust the air.At the same time, some exhaust gas generated by the high temperature of the material during welding is also in the pressurized cabin.

"It is necessary to detect the changes in the argon density in the cabin, and at the same time, we must find a way to extract the argon inside for purification at regular intervals, otherwise, the quality problem will not be solved at all!" Zheng Hao's complaint was originally. Unintentional, but let Liu Yijiu remember.

After checking the quality of the argon in the pressurized chamber and the working chamber, it was found that this made the purity of the argon, which was originally not pure enough, worse.

"The purity of the argon produced in the oxygen plant at the Sizhan Plant must reach 99.99%, and the purity of the argon in the working chamber must be guaranteed to be 99.9%. When replacing people, exhaust the outside air as much as possible... After discussing with Qi Hai and others, Liu Yijiu quickly came up with a solution to the problem.

After replacing the high-purity argon gas, while ensuring the purity of the argon gas inside, the effect is immediately obvious. The welded seam can at least ensure that the welded seam by each worker is the same.

After solving these problems, Liu Yijiu once again devoted his energy to the assembly of the engine.

The problem of the processing process cannot be solved in a short time.

When the technical strength has not been improved, the experience has not been accumulated enough, and the development of material technology is not in place, it is absolutely impossible to develop a machining tool that can improve efficiency in a short time.

Under the current situation, we can only use time to slowly pile up these parts and products.

Even the United States and the Soviet Union, which have strong processing capabilities, are helpless when faced with difficult-to-process materials such as titanium alloys, otherwise the U.S. will not eventually let the f-15 be replaced with f-16 and f-18. f-14, f-14, which uses a large amount of titanium alloy, not only requires high maintenance, but also increases too much processing cost.

The 80 F-14s sold by the U.S. Empire to Iran were sold for $80 million!

Although, the production cost will be much lower.

The manufacturing cost of an F-14 is at least more than 30 million U.S. dollars, or even higher!

Su-27, the performance is actually not as good as the f-15 and f16, but the manufacturing cost of each is more than 23 million U.S. dollars, and the export price is 33 million U.S. dollars. If you replace it with a US-made avionics system and radar, this thing The price of the child is estimated to exceed 50 million US dollars!

It is not easy to produce a fighter.

Now producing an engine makes Liu Yijiu feel big.

Compared to their era of advanced technology and strong manufacturing capabilities, there is no need to consider these issues.

Especially the current assembly is even more daunting.

Turbofan-8 has a low service life when it is tested on an aerial platform. Another reason is that the accuracy of the engine assembly cannot be reached, and the testing methods are not enough!

Liu Yijiu also discovered the problem after digging into these tasks.

Without solving the problem that the assembly accuracy cannot be guaranteed, or the detection problem of the assembled engine, the turbofan-8, even if it is manufactured, cannot reach the service life of 500 hours, and it can exceed one hundred hours, which is a miracle.