The ups and downs of life in the Siheyuan

Perhaps because of the second child, there was no danger and a daughter was successfully born, but He Yuzhu was very happy.

For safety reasons, prepare to be hospitalized for one day of observation.

Li Yuan returned to the compound with joy and told Yang Ting the good news.

While eating, there was a knock on the door.

"Oh, it's the uncle, please come in."

"No, it's too late today. I just came over to ask how Xiaotian and the children are doing? The old lady has been so worried that she can't sleep," he asked with a smile.

"Mother and daughter are safe. They are hospitalized for one day of observation and will be back tomorrow."

"Great, then I won't interrupt your meal, I'll go back."

"First Master still cares about Brother Zhuzi."

"Maybe," he thought to himself. If he really cared, he would have rushed to the hospital long ago.

The next day, when Li Yuangang arrived at the laboratory, he met Representative Tong whom he had not seen for a long time.

"Lao Li, both production lines are fully operational, and qualified chips are produced in the first production."

"Is the defective rate high?"

"16%".

"Well, there is still room for improvement."

"To be honest, the technical director of the base is very impressed by your laboratory. He also returned from studying abroad and visited Western factories.

Their production process control, processes and systems are completely incomparable to yours.

Not to mention, your skills are an eye-opener for him."

"Then you have to order the circuit boards earlier, otherwise you will be too busy.

Now they are producing circuit boards for the Kyoto Radio Factory."

Now that the circuit board business of the repair shop has been launched, Yan Jiefang and Liang Zhixiang are very busy.

Yan Jiefang is responsible for the production management of the factory, and Liang Zhixiang is responsible for optimizing the production process.

There is no way, this is the task Li Yuanya gave them.

"When will Senior Brother Gong and his team come back?"

Since they rushed to the southwest, some chip verifications required him to do it himself.

It is easy to go from frugality to luxury, but it is difficult to go from luxury to frugality.

"It should be soon. We will return when the workers at the base are familiar with the production line.

When I left, they rarely did anything themselves, but became teachers."

The current laboratory is empty, and everyone is involved in the construction of the production line at the southwest base.

"Look, my place has been shut down. This matter must be resolved in the future. Every time we come up with something new, our people will go out once, which will delay the progress of scientific research."

"Don't worry, in the future, a few trustworthy people will be assigned to enter the laboratory for preliminary study. As long as there are no special circumstances, this should not happen again."

They are also aware of this problem.

The researchers in these laboratories are all precious little ones. Every time they go to such a far place, they are afraid of what might happen.

"Lao Li, how are you doing with the engine?"

"Now there are some new ideas to try to solve the engine surge phenomenon."

With the knowledge and cases in the skill book, he also knew the reasons why the engine surged. Next comes the porting solution.

"Ah! Do you have a plan?"

“There are some ideas, mainly in three directions. One is to adjust the air inlet air deflector; the other is to control the flow of cooling air; and the third is to add a nozzle vibration suppressor.

Adjust the inlet air guide plate, mainly for optimization, to reduce the impact of inlet air disturbance on the engine and improve the engine's efficiency and stability.

The flow control of cooling air mainly involves proper control, which can effectively suppress the surge phenomenon.

Installing a nozzle vibration suppressor can effectively prevent airflow disturbances and the influence of internal vortices."

In fact, he has not said anything about optimizing blade design. He has no data to support this.

The above changes have actual test data records. It can be said that he has analyzed the data and combined it with the occurrence of surge, and he can justify it.

Optimization of blades requires wind tunnel testing.

He eloquently presented a long improvement plan, which shocked Representative Tong at that time.

Engineers from the two major aircraft manufacturers in the north and south have been looking for solutions. Unfortunately, the only thing they can do is to keep looking for Da Mao's information.

When the engine is repaired, all they can do is replace the damaged parts.

It's only been more than half a year, and Li Yuan has been studying lithography machines most of the time, so he has a plan, real or fake.

He knew that Li Yuan was powerful, but he couldn't be this powerful.

His previous suggestions for improving the insulation cavity aroused controversy.

But that's not bad, after all, there are faulty parts returned from the site, and diamond-shaped depressions were indeed found on some of the heat insulation cavity shells.

This change can also be attributed to his accumulation of knowledge.

They feel that the improvement of the control system is Li Yuan's strength.

In just a short time, he proposed three major changes, and they directly targeted the engine surge problem.

He has understood that the engine surge phenomenon is a problem in the world. Does it really have to be solved in the hands of this little brother?

Thinking of this, he got excited.

"What do you need me to do?"

"Provide me with some more high-temperature steel." Li Yuan made this request after thinking about the shortage of high-temperature steel reserves.

In addition to high-temperature steel, he has other materials here.

Representative Tong shivered for a long time as if he was constipated. Li Yuan asked strangely: "What's wrong? Is it difficult?"

He secretly thought that high-temperature steel should be a standing material for the military.

"No problem, I'll get it for you this afternoon. How much do you want?"

Looking at his expression, Li Yuan said, "Just 50 pounds."

Representative Tong breathed a sigh of relief. Finally, he didn't ask for tons of money like before.

"What? There is a shortage of high-temperature steel now?"

"Hey, the domestic production of aviation-grade high-temperature special steel is too low, and the quality is fluctuating. The current imports are not enough for a few aircraft factories."

"Judging from the various fault data obtained, the two major aircraft factories in the north and south should pay close attention to quality management.

Many failures are actually avoidable."

“Hey, actually there was a rectification in 1961, the quality was improved, and delivery was finally completed.

However, failures still occurred frequently, and many batches of aircraft were grounded.

Last year, due to the grounding, there was a gap in the capital's air defense force, and aircraft had to be urgently mobilized from other places."

"You can provide them with some of our laboratory's management concepts and let them improve their quality management methods."

"It's already started. Only a fool can't see the power of your plan."

Li Yuan smiled slightly and did not answer.

Representative Tong left with the mission. Li Yuan put on protective clothing and entered the lithography machine laboratory.

Three days later, he left the laboratory with 10 DIP28 chips and 30 DIP14 chips and went to the second workshop of the repair shop.

He soldered the chip to the circuit board he had prepared.

Half an hour later, the circuit power supply check was completed and the circuit board was installed on the engine.

The DIP28 chip is temporarily named HB-FK100, which can achieve two-way communication, and the communication interface is RS485.

DIP14 is a 485 bus driver.

A total of 3 pieces of HB-FK100 are welded on the circuit board for controlling the fuel injector, and a control interface for the cooling air valve is reserved.

Through the 485 bus, the pilot can control the work of the entire engine.

It’s my first time to play with AI illustration, and it’s quite fun!