Because of the two engineers who gave Jiang Yan a hand, the speed of disassembly was quite fast.

For a while, vises, screwdrivers, hammers and other tools flew in Jiang Yan's hands, and parts such as covers, bearings, spindles, and pull rods were disassembled from the machine one by one.

The disassembled parts were roughly evaluated by Jiang Yan, and according to the different wear and tear of the parts, these parts were numbered and carefully put aside.

has the technical foundation of the previous life, and Jiang Yan basically knows the approximate role of these parts, after all, it is not for nothing that he dismantled so many machines in his previous life.

For the convenience of work, Jiang Yan also deliberately asked Guo Jianjun to find a recorder, and the disassembled parts were clearly marked by the recorder with basic information such as those parts and gears being redundant and those lines being incorrect.

It wasn't until the whole bed was dismantled into an iron shell that Jiang Yan stopped what he was doing.

"Jiang Gong, Wang Gong, Zhang Gong will eat first, and we will do it after eating."

Hearing Guo Jianjun's words, Jiang Yan raised his wrist blankly and looked at the watch on his wrist, the time had come to half past one.

At this time, my stomach also rumbled.

took the lunch box from Guo Jianjun's hand and opened it, and several people casually found a workstation to sit there and open the lunch box.

"You're eating well here." Looking at the pork stewed vermicelli, fried potatoes and rice in his lunch box, Jiang Yan opened his mouth and spoke.

"It's okay! We are a military factory here, the supply price is relatively high, and this is the northeast, which is rich in products. ”

Looking at Guo Jianjun's slightly smug words, Jiang Yan added a piece of pork belly, and only opened his mouth leisurely after eating it.

"That's the rod beating the roe deer, scooping the fish, and the pheasant flying into the rice pot, right!"

"Yes, it's described like this, although it's not very accurate, but it's about the same, this sentence mainly describes the Great Northern Wilderness, but we have a lot of wild game here in the wild, so I'll get you some when I have time."

"Thank you very much." Jiang Yan took a bite of rice and thanked him.

Wang and Zhang are not bad people who are engaged in technology, and they are still discussing some problems with Jiang Yan during the meal.

Jiang Yan could only answer helplessly while eating.

After eating, Jiang Yan rested for a while, and then took the two engineers to the fine section machine again.

During the disassembly in the morning, Jiang Yan had already understood where the machine was damaged.

It is also very simple to say clearly, this should be the ball shaft inside the ball shaft is damaged and missing, so that the operation causes the machine to overheat, the screw rod is locked, and the tooth slippage is caused.

Such a situation will lead to a decrease in the accuracy of the machine, which will indirectly become a scrapped machine.

However, the parts of other machines were not so badly damaged, it was just a lack of maintenance.

Fortunately, the damage to the motor is not so serious, which is also a blessing in misfortune.

Now what Jiang Yan has to do is to restore the drawings of various parts.

With these 3D drawings, parts can be mass-produced, and there is no need to worry about damaging the machine and not using parts.

With the 3D drawings of these machine parts, reverse prevention is also not a big problem.

However, this amount of work is not small, in order to be able to concentrate on the drawing, there are only two engineers and Jiang Yan in the workshop at this time, and the other workers are arranged by Guo Jianjun to other workshops, and only he follows to listen to Jiang Yan's arrangements at any time.

After eating in the afternoon, under Jiang Yan's command, the three of them began to get busy.

Surveying, drawing, calibrating, the three of them are busy.

The bodies and minds of the three people are completely engaged in their work, completely oblivious to the movements around them.

When the three of them were busy, Director Zhao took the factory leaders to Jiang Yan's workshop.

As soon as he entered the workshop, Director Zhao saw parts covering almost the entire workshop floor, and there was a piece of paper next to each part, on which were written some Arabic numerals, and he didn't know what these numbers meant.

Originally, today, Director Zhao brought the leaders of the factory to here, officially announcing that Jiang Yan was the leader of the mechanical maintenance team of the whole plant, and by the way, Jiang Yan was introduced to the leading members.

Guo Jianjun had already noticed the factory leader who came in, and when he saw that the factory director just wanted to speak, he hurriedly stepped forward and made a silent gesture to the factory director.

He knew that what Jiang Yan was doing now was very important, and he couldn't be disturbed, otherwise he wouldn't dare not let the factory director speak.

The factory director was stunned when he saw Guo Jianjun's gesture, and his mouth that had just opened closed again.

Guo Jianjun saw that the factory director was not talking, so he pulled the factory director and walked them to the outside of the workshop.

"Xiao Guo, what are they doing?" Out of the workshop, Director Zhao asked Guo Jianjun.

"Factory director, Jiang Gong took Wang Gong and Zhang Gong to disassemble this fine section machine, and now they are repairing and drawing the parts on the machine. I really can't bother them right now, I'm really sorry. ”

Hearing Guo Jianjun's words, Director Zhao looked very depressed.

As the owner of a factory, he has never let himself speak.

"No matter how he played the piano, he didn't report it to the factory leaders, so he dismantled the machine privately, which is really unorganized and undisciplined, no, I will stop them."

A man with glasses about forty years old who was following Director Zhao opened his mouth and reprimanded him, and wanted to enter.

He was pulled by Zhao Chang.

The bespectacled man, surnamed Zhou, was the deputy director of management technology at the 663 factory.

At this time, the deputy director of Zhou was anxious, and the machines in the factory for a while did not know what was wrong, and there were various situations, and the engineers at hand were basically sent down to work hard to repair the current machines.

Jiang Yan They maintain only two precision machines in the entire factory, this is the main machine for manufacturing barrels, although the accuracy of this machine is a little reduced, make do with it and basically use it, if this one is lying down, with the remaining one, it is estimated that the task in the factory this year may not be able to be completed.

The manufacture of gun barrels is divided into cold forging process and traditional deep hole machining process.

The barrel manufactured by the finishing machine belongs to the cold section process.

The so-called "cold forging", probably its technological process is: first punch a section of the center of the blank after initial forging, heat treatment, and surface finishing, use a steel inner core with the same texture as the rifling to pass through, and then stick one end on the chuck of the cold forging machine, and the hammer head made of four brass evenly knocks the blank under the slow rotation of the cold forging machine chuck to make it elongated, and finally becomes a barrel of qualified size.

In addition to these two finishing section machines in the factory, it can be manufactured by cold section process.

The rest are made using traditional deep-hole machining techniques.

To put it simply, the rifling of deep hole processing is to use a boring machine and a long rod rifling broach to cut out the yin and yang rifling in the barrel blank little by little.

The general process also requires a finished barrel blank (the size has been set), one end of the blank is stuck in the chuck of the boring machine, and a hole needs to be punched in the center, and then the broach pokes in to process the rifling.

The processing process of fine and deep holes such as the barrel is more difficult, because the rifling knife works on the inside, and the inside cannot be seen from the outside, so it can only be completed with the experience of a senior technician.

In this way, they make barrels more slowly, and the scrap rate is relatively high.

The barrels manufactured by these two precision machines occupy half of the entire factory's barrel manufacturing.

Now that this situation has occurred, how can I not be in a hurry as the deputy director in charge of technology.

(End of chapter)