The so-called "matching box" is the implementation of modular management in the assembly, each module corresponds to a process, and the small parts of each process include various screws, nuts, lock plates, etc., which are basically concentrated in a parts box. In the assembly process, all the parts can not be more than one less one, more parts, you will wonder if it is less installed, and if there are fewer parts, you will wonder if it has fallen into the engine. The engine speed of the aircraft is as high as several thousand revolutions per minute, and if a foreign object falls into it, it may break the engine and cause it to stop working, and the consequences can be very serious. Therefore, no matter what situation occurs, it is necessary to check it out, and in the case of necessity, it is necessary to disassemble the engine for confirmation until it is clear. Therefore, the number of parts of an aircraft engine must be clear from beginning to end, and there can be no sloppiness.

Li Shan repeatedly counted the number of small parts against the process card, and only handed over the parts box to the team leader after being sure that it was correct.

The engine assembled by Li Shan's group this time belongs to a scientific research project codenamed Huashan Engineering, which has been going on for many years and is said to be nearing completion. If this project is successfully developed, it will achieve a historic breakthrough in Huaxia's fourth-generation military aero engine and greatly shorten the gap with the international advanced level.

Looking at the parts to be installed, Li Shan felt a sense of pride in his heart, and he also had his own share of credit.

When he was a child, Li Shan once watched a movie about the First Sino-Japanese War, the picture of the warship of the Beiyang Naval Division of the Qing Dynasty being hit by a devil's bomb and sinking, which he still can't forget, Li Shan thought at that time Why don't we have such a powerful bomb?

Now that we have weapons that are more powerful than bombs, we will have to get that account back sooner or later.

"Li Shan, what are you in a daze, go get a few tubes of sealant!" Master Huang Jiang was stunned when he saw Li Shan, and reprimanded.

Li Shan smiled, turned around and was about to leave, Lin Jianping leaned over with a shy face and said, "Group seat, the lowly job is willing to serve it, let the lowly job go." ”

Huang Jiang laughed when he heard this, and scolded: "You stinky boy, what kind of group and lowly position, while staying and going, did you get all the cables you received back?"

Lin Jianping's face was stunned for a moment, and he looked at Li Shan with some envy: "It's still your kid's luck." ”

Li Shan knew that the reason why Lin Jianping wanted to go to the material room so actively was because there was a big beauty at the factory flower level there. Because of this, the material room has become a place in the workshop and even the entire Hongqi factory.

Li Shan came to the window of the material room, knocked on the window glass, and there was an answer inside, and the sound was probably the factory flower. After a while, the factory flower, that is, the woman named Lu Jie, came to the window, only to see that this woman was like condensed skin, beautiful appearance, although she was wearing work clothes, she still couldn't hide her graceful figure, she asked softly: "What do you want?"

Li Shan smelled a faint fragrance coming through the window, he hurriedly handed the signed picking list through the window, looking at the jade hand where she reached out to take the order, the lines were soft and fair, and Li Shan's heart couldn't help but flutter.

"Well, here's what you received. After a while, Lu Jie put her things on the windowsill, and then turned and went into the back room.

During the whole process, she never looked at Li Shan with her eyes straight from beginning to end.

When he returned to the group, Lin Jianping squeezed his eyes at Li Shan and said in a low voice, "How is it, it's punctual?"

Li Shan looked at Lin Jianping, and suddenly realized that this guy was one word different from a character named Lin Pingzhi in Jin Yong's novel, and he didn't think about whether this guy had also practiced any sword score, and whether he had swung a sword from the palace, so he thought like a spoof in his heart, and said: "Xiao Linzi, it seems that you care about her!" After speaking, he looked at Lin Jianping with a smile.

It is said that before entering the factory, he studied art, specifically vocal music, and it was more suitable to go to the propaganda department of the factory, and I don't know how I came here. But this guy is a talent, 1.82 meters tall, fairer skin than a girl, plus handsome facial features, people used to say that he looked like Pan An, but that's it.

As soon as this guy entered the factory, it attracted the attention of many girls in the workshop. When he went to work in the morning, from time to time, a girl took the initiative to bring him breakfast, sometimes even several portions at the same time, which made Li Shan and other young workers feel very jealous.

I heard that this kid has been chasing Lu Jie recently, but people have always ignored him, which made Li Shan's heart a little balanced.

"Do you know, what did Lu Jie say about you?" Lin Jianping pretended to be mysterious.

Li Shan was stunned for a moment and said, "How is it possible, I haven't been in contact with her a few times." ”

"Hehe, of course people are not talking about you, but from some topic, at that time she wanted to give an example, so she talked about you, saying that you are young and not a little vigorous, lacking spirit, energy, and spirit!"

Li Shan smiled noncommittally, she was not the first to say this, and certainly not the last.

After such a busy day, coupled with the fact that there was almost no rest the night before, when it was time to get off work in the afternoon, Li Shan was so sleepy that he couldn't support it.

As soon as he got home from work, Li Shanfan didn't care about eating, so he fell asleep.

The next day happened to be the weekend, and Li Shan slept in the dark, sleeping until more than four o'clock in the afternoon of the next day.

My mother said outside: "Why are you so busy at work, look at you are tired, hungry or not, you haven't eaten for a day." "Mom didn't know what happened that night, so it was better not to let her know, so as not to worry about herself.

"Mom, no need, I'll go out with Zhigang to eat. Li Shan motioned to Dong Zhigang to wait for himself while getting dressed.

Dong Zhigang is Li Shan's hair small, the two have been playing since childhood, this Dong Zhigang likes art, and later was admitted to the art major of the university, and it seems that he is doing an internship recently, although the contact between the two is not as frequent as before, but they usually still meet often.

The two went out together, sat down at a random barbecue stall outside, asked for a few bottles of beer, a plate of vegetarian dishes, a plate of peanuts and edamame, and a handful of barbecue, and began to eat and drink.

"It's so refreshing to have a beer and a barbecue. Dong Zhigang didn't use a wine glass, he poured a big sip directly into the bottle, and then took a skewer of barbecue into his stomach, eating until the corners of his mouth were oily, shaking his head and looking satisfied.

"I haven't seen you for a few days, you kid seems to have not seen oil in a few years, what are you doing lately?" Li Shan couldn't drink alcohol because his stomach was not very good, and he could only eat something light in his diet, looking at Dong Zhigang's appearance of drinking wine and eating meat in large pieces, he said with some envy.

Dong Zhigang took a piece of vegetarian chicken and put it in his mouth: "Really, I've been tired for a while." ”

"You college students are in class all day long, how can we be tired of work?"

"You don't know, I recently took a course, do you know what I'm studying?" Dong Zhigang pretended to be mysterious and said.

Li Shan smiled: "Hurry up, what are you selling?"

Dong Zhigang smiled slightly: "One finger Zen!"

Li Shangang raised the drink bottle and took a sip, almost choking when he heard this.

Looking Dong Zhigang up and down, he didn't feel like he was joking, Dong Zhigang, who usually looked polite, couldn't be associated with martial arts, and Li Shan also wanted to pull him in when he practiced martial arts before, but he never agreed. I haven't seen you for a few days now, why did you change sex?

Li Shan motioned for Dong Zhigang to stretch out his finger.

Dong Zhigang smiled when he heard this: "It's not the kind of one-finger meditation that you can penetrate a brick with your fingers as you imagine, this kind of skill mainly lies in the mind." That day, when the physical education teacher introduced this exercise in our class, he told him about one of his experiences. Once, this teacher had a little friction with an unreasonable middle-aged woman on the street, this middle-aged woman was simply a shrew, and she couldn't get rid of it, and then the teacher was lucky in her eyes, and then looked directly at each other, and after a while, the corners of this woman's mouth were crooked. That's amazing! Since then, I've decided to take his course. After speaking, he raised the bottle and was about to drink, but found that the bottle was empty, so he beckoned to the boss: "Boss, two more bottles of beer." ”

Li Shan felt a little disapproving: "Lao Dong, it's really fake, aren't you all a little nervous about art?"

"No, no, no, this teacher is really powerful, once when I was demonstrating, as soon as his fingers touched my skin, I immediately felt a tingling feeling, which is an effect of true qi release. Dong Zhigang said with great certainty.

"It seems to be very powerful. Li Shan looked a little skeptical.

"You don't know if you haven't practiced, when you enter the state of practice, when your arms are pushed horizontally to the sides, you feel like your fingers are tied around the rope and it hurts, the teacher said that this is the sense of qi, which means that your real qi is a little sluggish, just wait to get through the veins!" Dong Zhigang took a skewer in each hand, opened the bow left and right, and ate so happily.

Li Shan didn't think so, he had practiced for a few days, and he knew a little bit, no matter how he looked at it, Lao Dong felt a bit mysterious, and in a few days, maybe there would be something like building a foundation and cultivating immortals. I wanted to persuade him a few words, but when I watched Lao Dong talk about it, there was a thief in his eyes, and he felt that this guy was completely trapped.

The days go by like this, Li Shan's life is nothing more than going to work, getting off work, eating, sleeping, life is monotonous and fulfilling, tense and busy, the only excitement is to come to such a road bicycle race from time to time.

On this day, Li Shan received a task to tighten the connecting screws of several engine casings. These big guys are equivalent to the torso of the entire engine, and each casing is connected by screws, and there are more than 100 screws per turn, for a total of 300 screws in three turns. Screwing is the simplest operation in assembly, as long as there is strength anyone can do it, this is the most untechnical work that others are not willing to do, mainly because it is laborious and does not earn man-hours (Note).

When this work that no one wanted to do was handed over to Li Shan, Li Shan seemed a little excited, because he could finally justifiably get on the engine assembly frame.

The engine assembly frame, as the name suggests, is the frame for assembling the engine, because the length of the Huashan engine is about four or five meters, because it is a vertical assembly in the final assembly, the assembly frame is designed to be more than two meters high. Under normal circumstances, no one is allowed to approach the assembly frame without permission.

At this moment, Li Shan is standing on the high assembly frame, which is the highest point of the assembly site, and everything in the factory is in full view. The ground is painted in different colors, the work area is painted dark blue, and the sky blue channel distinguishes the "ocean" and divides it into different work areas, and the assembly frame is like a ship sailing through the sea, Li Shan fantasizes that he is the captain of this ship. Hey, isn't that Lin Jianping, this kid slipped to the next receiver section again, there are a lot of girls in the receiver section, and this kid will drill wherever there are more girls.

Li Shan retracted his gaze and began to work, he first carefully counted the number of screws and nuts, and after being sure that there was no problem, he first connected the parts with the screws and nuts by hand, then tightened the nuts with a wrench, and finally used a force limiting wrench to go through all the screws. There are regulations on the tightening of screws in these parts of the aircraft engine, and the tightening force can neither be large nor small, but can only be tightened according to the specified torque.

When all the more than 300 screws were screwed, Li Shan felt that his wrist was a little sore, and he called his master Huang Jiang for a second inspection. After the second inspection is completed, it can be submitted to the inspector for final inspection.

Li Shan stepped down from the assembly frame, moved his sore wrist, picked up the water cup and was about to drink water, when the master Huang Jiang came over and said: "Li Shan, I received a notice just now, our engine task is very urgent, so the workshop requires us to work two shifts, do you see if you can work the night shift?"

As soon as he heard that he was going to work the night shift, Li Shan was a little resistant, maybe the encounter that night brought some kind of shadow to his psychology.

Note: Working hours – a unit of measurement that represents working hours. One hour of labor by a worker is called one working hour. It is an important unit of measurement for enterprises to calculate the working hours of workers, formulate labor quotas, prepare various plans, and measure the development level of labor productivity.