Rebirth of Military Workers

Chapter 203

“Very ordinary? If you could see it, their number in the country would be so scarce? The person in charge of each unit must take care of them?” Zheng Yucheng heard Chen Tongan’s mutter, with a look of disdain.

Xie Kai also despise Chen Tongan.

No insight at all.

“They keep disassembling and installing it, it needs so complicated?” Chen Tongan said, “It has nothing to do with the precision of the parts they make?”

“Not only is there a relationship, but there is also a great relationship.” Xie Kai said to Chen Tongan, “They repeatedly disassemble and assemble, the purpose is to let them fully understand all the parts assembly relationship. This is also they constantly inquired about the technology throughout the process. The role of various parts of the personnel. In this process, all the parts of the entire equipment have formed models in their minds. They have already known the accuracy requirements of each and what happens after assembly.”

“You know them well?” Chen Tongan didn’t believe it.

“At least I know better than you. I have been in any workshop in our entire factory, but their workshop does not allow outsiders to enter…” Xie Kai said.

If he wants to go in, Zheng Yucheng will definitely not refuse.

But Xie Kai never asked to go.

The working conditions of those old men will make Xie Kai unbearable.

In the previous life, he hated the management of the base and the people who built it.

After rebirth, he struggled, also because the talents with these truly selfless dedication made him struggle, making him unable to face the future of the base.

Level 9 fitters, in the 404 base, don’t know much, they rarely appear in the sight of the base.

Most of the nine-level fitters have no family, no children, and even eat and live in the workshop.

This may have something to do with the number of men and women in the base, and more importantly, they don’t have time to take care of their families.

Just like Xie Jianguo and his wife, they even forgot the existence of their son when they were busy.

Level 9 fitter, even crazier than Xie Jianguo.

Many people have never left after entering the base.

Wei Lao and Liang Lao have retired long ago, but they don’t want to go back to their home. In addition, it is increasingly difficult for a new generation of nine-level fitters to appear in the base. They use the workshop as their home. Apart from sleeping, they are constantly making hand-made products. All kinds of high-precision parts that the outside world can’t imagine.

This is the person Xie Kai can’t face the most in the entire base.

Zheng Yucheng’s attitude towards them is also because of this.

Everything of oneself is completely dedicated to the construction of national defense.

“Go and rest for a while. When you start working in the afternoon, you can help them.” Zheng Yucheng sighed and said to Xie Kai.

Xie Kai nodded, and said nothing.

At noon, the old men resting in the guesthouse ate some food prepared by Zheng Yucheng specially instructed Chen Degui in the cafeteria, and began to devote themselves to work.

They did not dismantle the above parts. First, they placed their tools on a workbench specially prepared for them. Various types of files, sandpaper of different thicknesses, cloth and other tools were neatly arranged on the workbench.

The equipment that needs to be repaired is nearby.

The maintenance technicians are all waiting.

“What about the parts?” Wei Lao, who is usually about to die, changed his appearance at this time.

The dying air is gone, the dim old eyes are bright, and even the slightly shaking hands become stable, holding a silver-white file with the thickness of small fingers and asking the technicians next to him.

“Come, here!” Zheng Yucheng and Chen Degui didn’t rest in the morning, and they stayed in the repair shop staring at the processing of various parts.

At this moment, the two of them each pushed a part transfer cart into the workshop. There were many parts of different shapes stacked on it, all of which were very small.

There are many plastic baskets on the car, and each basket contains different parts.

“Lao Wei, your rough is here.” Zheng Yucheng pushed the car over and put the basket with the name and number from the car on the old man’s workbench.(Read more @ wuxiax.com)

“These parts are numbered, next to the number, arrange them on the workbench.” Wei Lao said to Xie Kai who was waiting. Several technicians from the 691 factory next to him were ready to help, but he scolded him, “Don’t you guys.” Move, wait until you are asked to do it again.”

Xie Kai knows how they work, so they put the parts on the workbench, and at the same time moved a chair behind Wei Lao.

Wei Lao didn’t look at him at all. Holding a thumb-sized square part in his hand, he placed the pressed sketch of the part, sat on the stool, glanced at the drawing again, and then closed his eyes.

Time passed by, and when the people around him were waiting impatiently, he suddenly opened his eyes.

Pick up the micrometer on the right hand side and start measuring the width of the entire part.

Everyone was puzzled, and no one dared to ask. They had been warned before that they were not allowed to disturb the masters.

“Go and find a piece of glass.” Wei Lao said to a middle-aged man in his 30s next to him.

The middle-aged man turned and left. Wei Lao still didn’t do anything, but used a caliper to measure some hole distances on the small parts.

“Scrap!” The old man just measured a few positions and threw the parts aside.

Xie Kai quickly handed him the spare.

After measuring, the old man found a round file that was not much thicker than the pen core from the neatly arranged files, and began to slightly misplace the hole in the middle of the part.

Make mistakes while measuring.

“Remove the No. 07 and No. 13 parts assembled with this one.” The old man said to the technician who was assembled next to him while filing.

When they assembled the last time this morning, they numbered all the parts that needed to be replaced.

The parts were quickly disassembled. After measuring and repairing several holes, the old man began to make more careful repairs with the original parts above.

Just a few holes, it took more than an hour.

Subsequently, the old man assembled and removed the parts, then assembled and removed them.

Each time the process is repeated, a different file or even sandpaper is used to repair the hole that has become smooth.

It was not until the end that the hole was no longer repaired, and then the shape was repaired with a larger flat file.

File while measuring, and then start to polish the shape with coarse sandpaper.

The knife marks left by the parts processed by the milling cutter begin to disappear under the action of the file, and then different sandpapers make the surface smoother.

Small parts are a very critical part in the alignment system of the lithography machine.

This small part is the key to driving the focus of the microscope.

The moving shaft of the focusing mechanism of the lithography machine drives the fine movement continuously, and the surface roughness is not up to the requirement, which will cause friction, which will result in a displacement error, which will be several 0.01 millimeters.

And the manufacturing process precision of this thing is 1 micron, which is 0.001 mm!

The lithography machine being repaired, this thing is not only deformed, but also worn out.

Microscopes and everything are good.

As long as the accuracy problem of the focusing system is solved, the movement accuracy of the worktable can be ensured, and then some other non-core key electronic components can be replaced.

The most important part of the lithography machine is the action stage. The sample that is equivalent to the chip circuit mother board is installed on the lithography machine during the production process. As long as there is no problem, it will not be replaced. The samples are constantly changed by physical or chemical methods. The circuit diagram above is copied to the silicon substrate.

In fact, it is equivalent to a film negative, which can continuously develop the same photos.

Whether the mask can be in the specified position determines the position of all circuits on the chip.

Otherwise, the manufacturing requirements in this area will not be so high.

When Mr. Liang was working, his image was completely different from that of the old man before. His movements were steady, accurate, and fast.

This is all time-consuming. For a part with a large thumb, traces of milling cutter processing or rough sandpaper grinding can be seen on the surface from the very beginning, and they all begin to disappear. At the end, Liang Lao put the part on the glass plate. Above, I started polishing with burlap, and continued to measure while polishing.

Gradually, the parts that were originally silver and white metal began to reflect light, and finally changed towards the surface of the mirror, becoming brighter and brighter, until the shadow of a person could be illuminated in the back.

Xie Kai has seen the extent that this kind of handwork can achieve, so I don’t feel shocked.

The eyes of the others who hadn’t seen it were protruding.

Just such a part, it took Liang Lao a full two hours!

“Replace part 03.” Liang Lao carefully wiped off the fine dust on the glass with silk, and said to Xie Kai.

“Let’s take a break, it’s been two hours.” Xie Kai felt a little heartbroken for the old man, he was seventy dollars.

This kind of work seems to be very small and consumes very quickly of physical strength. It always has to keep the mind in a state of high concentration.

“This is just a while longer? Both the tee and the hemisphere of the leveling mechanism have to be engaged. That will take more time.” The old man shook his head. “But if you do that, there is nothing else that is too difficult. After all, this thing is related to the leveling of the sample. A slight deviation will cause problems with the size of the projection. We ourselves know to arrange a break.”

Xie Kai didn’t talk any more nonsense, and directly handed a hemispherical part to the old man.

Repeat the previous work, first using a file, then sandpaper, and then cloth.

To deal with this hemispherical part, Liang Lao did not use any measuring tools, but used the original parts on the lithography machine to constantly install and modify some parts.

This time it took a long time. It took four and a half hours to make the surface of the hemisphere appear as bright as a mirror.

The other old men are the same, they all rely on the file in their hands and the sandpaper is constantly working.

After their processing, the various parts are completely different from those originally processed by the 691 factory.

“The surface looks better than the original one. There is no problem with the dimensional accuracy, right?” Chen Tongan looked at the various reflective parts, feeling completely incredible in his heart.

However, such a superficial level can be processed by apprentices who have just been apprentices as long as there is sufficient time.

The dimensional accuracy determines the accuracy of the equipment.