"Old Wei, why are you leading the team? Didn't I tell Lao Wang, don't worry about you for this kind of trivial matter?" Seeing the old man who was walking tremblingly in front of him, Zheng Yucheng hurriedly stepped forward to help.

The old man had white hair, his face was wrinkled like the bark of an old mulberry tree, and his eyes were cloudy, as if he were about to die.

"This is not what Xiao Wang arranged for me to come over. I'm always in the factory, and my old bones are rusty. It's okay to come out and take a walk. Wei Lao looked at Zheng Yucheng, and the wrinkles on his face were even tighter.

"It's not bad to come out for a walk, we're too disgusted during this time, except for tossing a few apprentices, we don't have anything to do. Another white-haired old man said. "What's going on here, what are we going to do?"

"Old Liang, it's been hard along the way, let's eat and rest first, and we'll talk about it tomorrow morning. Zheng Yucheng said with a reverent face.

Chen Degui saw Zheng Yucheng in such a state for the first time.

There is no leadership shelf, and there is no momentum of Lao Tzu being the first in the world.

Even in Sun Daoqian, he won't give a good face.

Who is Sun Daoqian? That is the secretary of a large unit of more than 100,000 people like Qin Fei!

"Foolish, we have so much time to waste? First figure out how to do it, just lay a mat in the workshop and make a few quilts. Hearing Zheng Yucheng's words, Wei Lao, who took the lead, was immediately unhappy.

The momentum of the whole person has changed.

"Old Wei, Old Liang, we haven't finished the inspection yet, let's rest first!" Xie Kai knew that these old men were used to being in a working situation all the time, but looking at the old man's body, he was tired of traveling and driving, and then continued to work, if something went wrong, they couldn't afford it.

"Xie family boy, you are good, you can toss, toss us all here. Wei Lao looked at Xie Kai, and his cloudy eyes instantly brightened.

Hearing that Wei Lao said that the Xie family kid, the eyes of the group of old men who had just gotten off the car were devoted to Xie Kai.

Xie Kai suddenly became uncomfortable.

"Old Wei, don't tease him. This kid is timid!" Zheng Yucheng smiled and helped Xie Kai out of the siege. "This is Chen Tongan......, director of Fengcheng Optoelectronics Research Institute;

After a greeting introduction, the old men from 404 didn't pay attention to Chen Tongan at all, just shook hands and urged to talk about things.

Chen Degui kept shouting and asking for warmth, and they didn't even look at it.

When Xie Kai saw these old men, he suddenly felt that in his previous life, he should have been influenced by his master, so he didn't understand the world.

If these old men are under the control of Chen Degui or Chen Tong'an, that day will ......

Xie Kai knows that this kind of cattle are arrogant in their bones, and all their time is spent on studying technology, and they don't have time to think about human feelings or anything, let alone care about any promotion and salary increase.

After this group of old men can't do anything, there will be fewer and fewer ninth-level fitters in the 404 base.

If the mind is complicated, there will naturally be less energy to devote to technical research.

As Master Xie Kai said, Xie Kai has never been able to touch the threshold of a ninth-level fitter in his life, even if his theoretical knowledge is richer than that of the master, and the master understands programming and PLC circuits that the master does not understand.

“…… This is the case, the broken parts need to be re-produced, there are no drawings, there are no high-precision measuring instruments...... "In the workshop where the equipment is stacked, Cheng Tongan introduced all the faults they checked.

Old man Wei was judging the two of them at this time, and the whole person became radiant.

"These are the most accurate machines in the world, and as long as one point of accuracy is not achieved, it will affect the accuracy of the entire equipment. Chen Tongan emphasized.

"Let's all talk about what we think, we all know the situation. A group of old men gathered around a German-made lithography machine at the scene, and after learning where the equipment was faulty and which parts needed to be replaced, they discussed it as if no one was around.

Old man Wei, who led the team, asked everyone.

When a plan is discussed, they start disassembling the individual parts and even the parts.

"First do some alternative parts, gradually replace, and replace the ones for physical and chemical analysis, to figure out what materials are used and what the characteristics are. ”

"I agree with Lao Liang. However, we had to replace them one by one to ensure the accuracy of the assembly. ”

"Start with the non-critical components, and replace one after another, only in this way can we ensure that the parts we make can fully match the original and achieve the original accuracy requirements as much as possible. ”

A bunch of old men, you say a word, and the people next to you can't figure out what they are discussing.

Imitation, shouldn't it be disassembled to map the parts first?

They didn't even ask Chen Degui for measuring tools.

"Director Zheng, please ask someone to help us move the tools off the car. Soon, Old Man Wei and the others came up with a plan and said to Zheng Yucheng.

It's as if Zheng Yucheng is not their leader.

Chen Degui listened, and hurriedly arranged for someone to move the tools on the car.

More than a dozen small boxes made of wood, I don't know what they contain, it's not too heavy.

The toolbox came over, and the old men who were in front of the equipment to study how to start each found their own toolbox, and when it was opened, everyone was dumbfounded.

There are no high-precision tools in it, and if there is, a micrometer is the best precision measuring instrument.

Inside the toolbox, most of them are various types of files, sandpaper, and even cotton, silk, etc.!

An artifact used by a ninth-level fitter!

The main thing is still a file.

It is rumored in the rivers and lakes that a file is in hand, and the fitter walks all over the world.

"Director Zheng, they use these equipment to ......" Chen Tongan was a little worried, "Once it is removed and cannot be installed, it will be troublesome." ”

"Don't worry, they know in their hearts that everyone's tools are what they have used for many years and measured by themselves. Zheng Yucheng said calmly, "Aerospace rockets and missiles, many high-precision parts, they are processed by these measuring tools. ”

Xie Kai knows that these old man's measuring tools are not the ordinary goods on the market, although they are mechanical, the measurement accuracy is not high, and with the experience of these old men, the accuracy is higher than the world's most sophisticated electronic measuring equipment.

Some equipment, two or three old men in a group, and some equipment, one person.

They carefully disassemble the parts in each position, put them back on, and then remove them and put them back on, making sure they can be put back in their original positions after disassembly.

Time passed slowly, Cheng Tong'an's people had already been hache for days, but they couldn't rest, the old men needed their cooperation, and asked them about the effect of each part, the relationship with other parts, and what the impact of the difference in accuracy would be.

"Didn't you say that you were going to tear it down? It's going to be dawn. Chen Degui was a little anxious.

He wanted to ask if the old men could do it.

"If you're not satisfied, you can go to sleep. Zheng Yucheng said to him.

Chen Degui really thought in his heart, but he didn't dare to leave, their maintenance workshop, after the old man arrived, was ordered to be on standby, and they must provide the rough processing they need according to the old man's requirements as soon as possible.

By the time dawn came, everyone was exhausted and their faces were shiny, and the old men were still in good spirits.

"It's dismantled!" Xie Kai has been observing the movements of the old men, they repeatedly disassemble, install, and then repeat, just to test the assembly accuracy of each component of the equipment, to ensure that the parts they process can be consistent with the original machining accuracy.

As for the materials and heat treatment process, they have no choice.

Only when the material is replaced, the material and performance of the part are determined by physical and chemical analysis, and then the material with the closest performance is considered to produce the part for processing.

The ninth-level fitters of the 404 base can not only file high-precision parts with the file in their hands, they know more about the material properties!

To solve the cow, you must know what the meridians are in all positions on the cow's body.

Eventually, someone left the dismantled parts back on and began to sketch them with the work notebook they had with them.

Just like a signal, others also began to draw.

"Xiao Chen, let the people in your maintenance workshop process according to the requirements on these drawings. Liang Lao handed the drawings drawn on the work notebook in his hand directly to Chen Degui, who was about to hold on.

"This, is the accuracy on it too high?" When the director of the maintenance workshop of Factory 691 saw the drawings, he couldn't help but be dumbfounded.

Their workshop is full of ordinary skilled workers.

The dimensional tolerances on the sketches are almost always within 0.02 mm, and many are even within 0.005.

"Old Wei, the technical conditions here are not as high as ours, and the precision is too high for them to process......" Zheng Yucheng said to Wei Lao embarrassedly after understanding the situation.

"If we don't have that accuracy, we won't be able to guarantee time. Wei Lao frowned and said.

"There was no time to ask. ”

"That's okay, all tolerances are enlarged to within 0.05, only large, not small, otherwise it won't work. After discussing with the others, Wei Lao replied. "We can only leave a little more margin and we will do it. Let them pay attention to the position of some holes, and if there is no guarantee, leave the margin. ”

"Okay, I'll guard it myself!" Zheng Yucheng said.

He knows the importance of pre-processing to ensure the accuracy of the subsequent manual work.

There are a lot of seventh-level and eighth-level workers in the 404 base, and the old men put forward their requirements completely according to the standards of the base.

The maintenance workshop of Factory 691 did not have much finishing capacity, so it naturally could not meet the requirements of the old men.

"Okay, let's arrange it, we have to process these in the morning, let's go eat something, sleep for a while, and do it in the afternoon, and we should be able to get all the parts out tomorrow morning." Wei Lao nodded and did not speak again.

In the morning, they ate something casually in the canteen of Factory 691, and they went to sleep in the factory guest house.

Chen Tongan watched it all night, but he never understood what these old men were doing.

I can't see any cows in this place!

The legendary ninth-level fitter is also very ordinary.