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863 TIG welding in aircraft engine manufacturing

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"It's a good thing to have more crazy scientists. There are still too few crazy scientists in our country." Liu Yijiu didn't think there is anything wrong with these scientific research people being crazy.

On the contrary, he felt that only by the emergence of crazy scientists can a country's technical level improve by leaps and bounds.

It was because of the Soviet Union that the Caspian monsters emerged, nuclear energy aircraft, huge offensive nuclear submarines, condensed nuclear reaction batteries and other black technologies.

These things allowed the Russians to intimidate the US imperialists for decades after the collapse of the Soviet Union.

"Go crazy, can your funds support it? There is another problem with the engine of your fighter jet..." Liu Yijiu's projects are many of them because of crazy things. As a result, it is clearly just a copy and must be changed beyond recognition.

Until now, no finished product has been released.

Hearing Long Yaohua's words, Liu Yijiu frowned, "Didn't our engine have been tested on the air platform?"

"It took more than twenty hours to fly, and something went wrong." Long Yaohua sighed a little.

When Liu Yijiu heard this, the corner of his mouth twitched.

"Chief, why don't you help me communicate with the Ministry of Aerospace Industry for that engine project? The original dispersed technical research is obviously not possible. You must concentrate together. This can be cooperated with them. You can also be on our side. But I think. Even if you are on their side, it is better to be in Rongcheng." Liu Yijiu's heart is already anxious now.

The Turbofan 6 was successful, but the engine with a larger thrust-to-weight ratio has been studied for many years.

This matter must have happened for a while, otherwise Long Yaohua would not have told him at this time.

Even an aircraft engine cannot be solved. So how can we solve the plug-in engine that the Americans have not solved in the first twenty years of the 21st century?

"You're going to hurry back?"

"Can I not go? The panda prototype has an American engine. But we can't just fly one prototype." Liu Yijiu was also very impressed.

Domestic fighter jets are actually poor engines.

Only two F14 Panda fighter jets were obtained from Iran, with only four engines in total, one was training pilots, and the other one had been removed for research, and the engine was used for the first flight and test flight of the prototype.

Once a problem occurs, there is no follow-up.

It is impossible for the Soviet Union to export the al-31 engine to China now.

Similarly, it is even more impossible for Americans to export engines to China.

The Americans ended up dragging the single-engine J-8ii fighter jets with less advanced performance.

Liu Yijiu soon returned to Rongcheng. He ran directly from the airport to Factory 132, and on the way he listened to the work report of Qi Hai, the chief designer of the engine.

The turbofan 8 used for the F-14 Panda fighter that has been disassembled and assembled many times has been very effective on the ground test platform, but problems arise after the sky. The main reason is that the problem will be found after flying. The main reason is that the welding connections of important engine components cannot maintain stability when the fighter maneuveres at high speed, and weld cracks occur.

However, China does not have such a pressurized chamber.

The turbofan eight is not al-31, but the production process is basically based on this.

After all, the first engine used by J-10 in China was the Al-31 imported from Russia. It was not until the Turbofan 10 was fully developed and the domestic engine began to be used.

"Collaborate and manufacture a pressurized chamber that can reach two atmospheric pressures. Can this solve this problem? If this problem can be really solved, would Simonlov not raise it? He is the chief designer of Su-27, and it is impossible for him not to understand this situation..." Qi Hai was not too convinced of Liu Yijiu's statement.

The argon arc welding technology has been used for so long, and such a problem has never occurred.

"Did you let Simonlov interfere in this matter? Moreover, all he wants is the engine. He is an aircraft designer, not an engine designer!" Liu Yijiu did not pursue these things too much.

Simonlov has now devoted his main time and energy to the design of the new giant panda J-10 fighter jet.

The test flight is in progress, the imitation f-14.

"The al-31 engine is indeed produced in this way, especially the welding process. Almost all key components are welded in the pressurized chamber. Other welding methods cannot compare quality at all..." When he heard Liu Yijiu ask about the welding process adopted by Su-27, Simonlov told him everything he knew without hesitation.

If Liu Yijiu hadn't been with him since he got off the plane, Qi Hai would even suspect that the two of them had colluded.

"... The pressurized chamber is divided into a working area and an airlock. The welding worker put on protective clothing connecting the ventilation pipes outside and walked through the first door to enter the airlock, then closed the hatch door and injected argon into the airlock. After the airlock is filled with argon and reaches the pressure equilibrium, the welding worker will weld..." Although Simonlov did not know the details of "Atmosphere-24", Liu Yijiu knew it clearly.

The al-31 engine is very familiar to anyone in the Republic who has research on aviation equipment.

You can receive a lot of information online.

Liu Yijiu and others are very familiar with these technologies and even the entire engine production process.

Therefore, under his personal responsibility, Institute 611 began the design of the pressurized chamber.

This kind of work is the first time for 611, but with Liu Yijiu's participation, the design work went very quickly. In just over ten days, it came up with a plan and put it into manufacturing.

Waiting for the production of the pressurized chamber, Liu Yijiu asked the special clothing design unit in the 8th District of the Ninth Courtyard to produce protective clothing connecting the ventilation pipes to the design. He provided a preliminary plan and then began to sort out the production process of al-31 that he knew.

Especially the production of each key link and the matters that need to be paid attention to.

It took more than 20 days in a row, and the process was completely straightened out after the pressurized chamber was produced.

He did not put the production process into production as soon as possible. Is the problem with the turbofan-8 engine because of this? As long as the experiment is conducted, the results will be obtained soon.

Without problems, there is nothing wrong with putting it into production process.

(To be continued.)
Chapter completed!
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