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With the completion of the 5,000-hour test run and the start of the final life-span test run, Wang Bin basically came to the Aeronautical Laboratory every day to conduct a life-span test run with Professor Zha and others. Of course, this can also be called It is a destructive test run.

With the test running, 5500 hours, 6000 hours, and 6500 hours, the performance of the ten engines was exceptionally good, and nothing happened.

When the test run time reaches 7,000 hours, the fuel consumption of one of the ten engines starts to increase. When it reaches 7,200 hours, the fuel consumption of the ten engines on the test bench basically starts to decrease. High, but the sound of the engine and other conditions are not bad.

But when the test run time reached 7600 hours, the fuel consumption of the engine on the No. 3 test stand became abnormally high. At this time, both Professor Pok and Wang Bin knew clearly that the life of this engine had come to an end. , while other escape engines are not much better off.

Sure enough, when the engine test time reached 7,700 hours, all the engines experienced a sharp increase in fuel consumption, and even when the No. 3 engine was running, there was a slight vibration and a trace of abnormal noise.

Finally, when the test run reached 7,800 hours, Professor Zha finally issued an order to stop the test run, because at this time the out-of-control engines on the ten test stands had experienced a sharp increase in fuel consumption, engine vibration and abnormal noise.

So at this level, there is no need to continue the test run, because both Professor Pok and Wang Bin know that the internal situation of the engine must be very bad at this time. If the test run continues, it is very likely that something will happen. unnecessary accident.

When all the engines on the test bench stopped, the entire test workshop fell silent, and everyone in the test workshop fell silent, because no matter whether it was Professor Pok, Wang Bin, or the test workshop Others in the industry, even those who are not clear about the operating time limit of aero-engines, know the meaning behind the 7,800 hours of full-life test runs, especially for Huaxia.

You know, if such data were placed a few years ago, even the best engine in China, all the life spans from the start of a new engine to three overhauls and then to scrapping, would not be able to reach this data, so this test data Definitely very, very powerful.

About ten minutes after coming here, the young people in the test workshop suddenly remembered the loud cheers. At the same time, they, including Wang Bin and Professor Po, felt extremely proud because their engine Its longevity water has created miracles.

Of course, like these young people, Wang Bin was extremely excited, and praised Professor Po and everyone present on the spot. At the same time, he sent out a lot of red envelopes in the aviation laboratory group. , to celebrate, and finally announced that starting this month, the salaries of everyone in the entire aviation laboratory will be doubled.

You know, this is an aviation experiment! As aerospace technicians, these people’s salary level is several times higher than that of other people in Tiangong Technology, and now it has doubled on the original basis. How can this make them uncomfortable? Happy!

So when Wang Bin announced the news, all of a sudden, the people in the laboratory became even more excited.

It wasn't until everyone calmed down that Wang Bin and the technicians in the laboratory dismantled all the ten engines on the test bench and sent them to the assembly workshop to disassemble the ten engines one by one. untie.

Of course, because the test run project just completed this time is a destructive full-life test run, all this dismantling is just to know the internal conditions of these engines.

So things like cleaning and reassembly are out of the question.

However, necessary inspections are still required. After all, the internal parts of the engine are so precise, even if it has reached this level, many things cannot be seen by the naked eye.

However, at this time, Wang Bin, Professor Zha and others judged that among the ten engines, the most severely damaged ones should be on the top of the engine. After all, compared with other components, the pressure on the bearings of these engines should be the greatest.

Even if this bearing is already made of the best bearing steel of Tiangong Technology, its level is only relative to the level of human civilization, so if you want to make the bearing life longer, you must use Bearings made of more advanced bearing steel will do.

These ten engines were all transported to the workshop, and the technicians immediately began to dismantle these engines according to the process of the engine, and the dismantling was completed soon.

After the dismantling of these ten engines was completed, Wang Bin, Professor Chi and others stepped forward to examine them carefully. The parts are no longer the same as when they were brand new, they have become black and black, and even many parts are covered with oil stains.

However, the judgment of Wang Bin, Professor Chi and others is not surprising. After a series of tests, the other parts of these ten engines are still in good condition. Hours, there will be absolutely no problem.

However, when they saw the engine bearings, they found that these bearings may look good at this time, but if you look carefully, you will find that the steel balls of these bearings are no longer the same as when they were brand new. All are metallic luster, without the slightest blemish.

At this time, if you look carefully at the bearing with a magnifying glass, you will find that there are densely packed small black spots on the steel balls of the bearing at this time, and there are also a large number of wear marks and even metal peeling on the bearing sleeve. Phenomenon.

Afterwards, Wang Bin and Professor Zha checked all the bearings on the ten engines one by one.

He found that almost every bearing on these ten engines had this kind of situation more or less, especially on the main bearings, and this phenomenon was even more serious.

Seeing this, Wang Bin stopped. At the same time, he secretly thought that he must work harder on the bearing steel and the bearing itself to improve the quality of the bearing again.

Of course, if it is another company, it is impossible to improve the quality of the bearings in a short period of time. What's more, the bearings of Wang Bin and Tiangong Technology are already the world's top bearings, and it is even more difficult to improve them. It's difficult.

But that is only for other companies. For Wang Bin, this is not an insurmountable problem. For him, as long as there are enough energy coins, it is not a problem to improve the quality of bearing steel and bearings. ,