Siheyuan starts from a good life

"I have to say that this Yingjiang still has some unique skills. Look at the way our aircraft is installed with Yingjiang. The surface of the assembled aircraft looks much smoother, and the parts inside are also standardized parts. In this way It’s easier to maintain.”

Hearing someone talking, Jiang Yan, who was looking at the new Zhan-6 aircraft in the hangar, turned around and saw Mr. Xu walking from the door of the hangar.

It turned out that after Jiang Yan wrote out the "rotation, promotion and demotion" plan, Mr. Xu reported it to his superiors as an internal reference. After seeing it, the superiors felt that this plan was more suitable for our country's national conditions than the assembly line proposed by Jiang Yan before. Soon the superiors With the important instructions, Jiang Yan was asked to promote it throughout the Shengjing Aircraft Factory.

So while Jiang Yan was studying how to improve the new Zhan-6 aircraft with researchers like Mr. Xu, he was also promoting the "rotation promotion and demotion" system he designed. Workers at the Shengjing Aircraft Factory saw this After realizing the benefits of the system, there was almost no resistance, so the promotion was quite fast.

Since apprenticeship and learning skills are still popular in factories, when masters are teaching their apprentices, other workers are almost not allowed to visit. This leads to a large number of workers who do not know the master and can only explore on their own, leading to their own mistakes. The promotion of industrial level is quite slow.

After Jiang Yan proposed this "rotation, promotion and demotion" system, he also opened a large number of training classes and tutoring classes. This gave hope to many workers who studied hard, so that every lecture in these classes was full. .

Jiang Yan also organized a group of senior workers and technical experts to write an operation manual based on the situation of Shengjing Aircraft Factory. With this operation manual, low-level workers got started much faster.

This has led to the fact that in the short half-year since the promotion, the learning atmosphere in the entire Shengjing Aircraft Factory has been unprecedentedly strong. A large number of workers have upgraded their work levels, which made these workers have a deep understanding of Jiang Yan. The person who proposed the "rotation, promotion and demotion" system felt much better. No matter where Jiang Yan went in the factory, people greeted him warmly, so Jiang Yan's prestige in the minds of these people was quite high.

Since the implementation of the "rotation, promotion and demotion" system, batches of qualified parts have begun to be produced, and the output has increased by almost %, which makes the leaders of Shengjing Aircraft Factory smile from ear to ear.

Without adding a single machine or adding a single worker, the output has increased. This is a proper performance, and this performance has benefited all the leaders in the Shengjing Aircraft Factory, and they have a stronger sense of Jiang Yan. So good, everyone felt that Jiang Yan was just a lieutenant general.

Jiang Yan not only promoted the "rotation, promotion and demotion" system at the Shengjing Aircraft Factory, he also used the skeleton as the basis for assembling aircraft in later generations. He accurately positioned the skeleton of the fighter aircraft and then assembled the skin. After being promoted, the appearance of this batch of produced aircraft has become more than one grade higher. They no longer look wrinkled, but have an extremely smooth exterior.

It is not easy for Western and Eagle Sauce to promote their skeleton-based installation method.

You must know that aircraft assembly is the process of positioning and connecting a large number of parts according to drawings. It is one of the important links in aircraft manufacturing. Its workload accounts for about half of the entire aircraft manufacturing labor workload. During the aircraft assembly process, specific tooling frames are needed to ensure assembly accuracy. Due to the differences in the aerodynamic shapes of the aircraft, the mold frames are unique.

And during the assembly, Jiang Yan also found that the most difficult thing was the fastener connection between the skin and the frame. During manufacturing, Jiang Yan discovered that the main strategy to ensure the accuracy of the aircraft's appearance is to control the accuracy of the hole-making and countersink connection process. However, once the accuracy of the hole making and socket connection process is insufficient, it will lead to inconsistency in the height direction between the upper end surface of the rivet and the surface topography of the aircraft, thus causing irreparable damage to the aircraft's appearance accuracy. However, due to the complex surface morphology of the aircraft, the large-scale application of composite materials in the aircraft body, and the inherent insufficient local stiffness, it is very difficult to simply control the lamination hole making accuracy of the skin and wall panels, and out-of-tolerance group holes often occur. The problem.

Jiang Yan read through a large amount of information and combined with the on-site situation found that in order to maintain flatness, the core idea is to pre-group the rivets used for connection according to their actual sizes, and then perform hole making and countersinking between the aircraft skin panels. Nest, and use high-precision measuring equipment to detect the depth accuracy of the nest. Combining the rivet grouping information and the measurement results of the socket depth accuracy, appropriate rivets are selected for connection and fastening to ensure surface accuracy.

During the assembly project, such problems appeared one after another, and Jiang Yan and the others solved them one by one. They guided the work during the day and hid in their own space at night to use the computer to query information. After stumbling and stumbling, and with the help of many technicians in the group, the process was finally perfected, and now the finished product produced by this process is in front of me.

"We succeeded in gliding on the ground today. Our superior leaders congratulated us. The follow-up experimental arrangements will gradually unfold. If there are no accidents, the War Eagle will fly into the sky for the final test in half a year." After speaking, Mr. Xu was excited. Patted the silver war eagle.

Seeing Mr. Xu's excitement, Jiang Yan really didn't want to tell him the news that he was leaving, but after thinking about it, Jiang Yan thought it was a good idea.

"Mr. Xu, I'm afraid I won't be able to accompany you in the next experiment."

"What's wrong? Is there a new project arranged by the higher ups? It's okay. I have this project! You can rest assured."

Hearing Mr. Xu's words, Jiang Yan nodded and shook his head. Then he said: "I received a notice from my superiors today that I will leave Shengjing and return to Sijiu City with my family early in the morning the day after tomorrow."

"Why did you leave Shengjing so suddenly?" After Mr. Xu said this, he suddenly thought of something, his face changed, and then he spoke.

"Is there someone coming to pick peaches? Tell me who he is. You are not afraid of offending me. I will report to the leader. The leader will not care if I report to a higher level."

Hearing the tone in which he defended himself, Jiang Yan was lying if he said he didn't dare to move, but it was really not what he thought.

"No one is picking peaches. The project of General Engineer Wu has been restarted, and the imitation of high-precision machine tools must also be carried out simultaneously. At present, all scientific research personnel are in place, but I am still busy with our new war-6 This project has already been implemented, and I can’t help here anymore, so my superiors asked me to go back.”

"Really?" Mr. Xu asked.

"Really, don't you know these situations?" Jiang Yan asked again doubtfully.

"Does everyone in the family know the situation now?" Mr. Xu asked next.

"I know, I asked secretary Xiao Gong to inform them today. They are probably still packing their things at home right now!" Jiang Yan said.

"Okay! Since your superiors have arranged it, please pay attention to your safety on the way back. Call me if you need anything. If you have nothing to do, come to Shengjing for a visit," Mr. Xu continued.

"Don't worry! I understand." Jiang Yan nodded and said something.

Seeing Jiang Yan's leaving figure, Mr. Xu stood there and stared for a long time. He thought for a moment at the door of the hangar, then turned and walked towards the factory director's office building.