Siheyuan starts from a good life

Since there were two engineers helping Jiang Yan, the disassembly speed was quite fast.

For a moment, tools such as vise, screwdriver, and hammer were flying in Jiang Yan's hands, and parts such as cover plates, bearings, spindles, and tie rods were disassembled from the machine one by one.

Jiang Yan made a rough assessment of the disassembled parts. Depending on the degree of wear of the parts, these parts were numbered and carefully put aside.

With the technical background from his previous life, Jiang Yan also basically knew the general function of these parts. After all, he had dismantled so many machines in his previous life and it was not for nothing.

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

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

"Gong Jiang, Gong Wang, and Gong Zhang will eat first. After dinner, we will work together."

After hearing Guo Jianjun's words, Jiang Yan raised his wrist in confusion and looked at the watch on his wrist. The time had already reached 1:.

At this time, my stomach also rumbled.

After taking the lunch box from Guo Jianjun and opening it, several people found a random work station and sat there to open the lunch box.

"The food here is not bad." Jiang Yan said as he looked at the meat and vegetables such as pork stewed vermicelli, fried potatoes and rice in his lunch box.

"It's not bad! We are a military factory here, and the supply price is relatively high. In addition, this is the Northeast, and the products are rich."

Seeing Guo Jianjun's slightly proud words, Jiang Yan added a piece of pork belly and ate it in his mouth before speaking leisurely.

"That means beating the roe deer with a stick and scooping up the fish and pheasant into the rice pot, right?"

"Yes, that's the description. Although it's not quite accurate, it's almost the same. This sentence mainly describes the Great Northern Wilderness, but we have a lot of wild game here. I'll get some for you when I have time."

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

Wang and Zhang were indeed technical people. During the meal, they were still discussing some issues with Jiang Yan about the precision segmentation machine.

Jiang Yan could only answer helplessly while eating.

After Jiang Yan took a rest for a while after eating, he brought the two engineers back to the fine segmenting machine.

During the morning's disassembly, Jiang Yan already understood the damage to the machine.

It's very simple to explain clearly. This should be caused by damaged balls in the ball shaft. When running like this, the machine overheats and the screw rod locks, causing the teeth to slip.

If such a situation occurs, the accuracy of the machine will decrease, which will indirectly cause the machine to be scrapped.

However, the damage to other machine parts was not so serious by then, it was just a lack of maintenance.

Fortunately, the damage to the motor was not that serious, which can be considered a blessing in misfortune.

What Jiang Yan has to do now is to restore the drawings of various parts.

With these three-dimensional drawings, parts can be mass-produced on a large scale, and there is no need to worry about damaging the machine and running out of parts.

With these three-dimensional drawings of machine parts, reverse engineering prevention is not a big problem.

However, the amount of such a project is not small. In order to concentrate on the drawings, there are only two engineers and Jiang Yan in the workshop at this time. The other workers have been arranged by Guo Jianjun to other workshops. Only he follows and listens to Jiang Yan at all times. their arrangements.

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

Measuring, drawing, and calibrating, the three of them were very busy.

The three people were completely engrossed in their work, completely forgetting what was going on around them.

While the three of them were busy, Director Zhao led the factory leaders to the workshop where Jiang Yan and the others were located.

Director Zhao, who had just entered the workshop, saw parts covering almost the entire floor of the workshop. Next to each part was a piece of paper with some Arabic numerals written on it. He didn't know what these numbers meant.

Originally, Factory Director Zhao brought the leaders of the factory here today to officially announce that Jiang Yan would be the leader of the machine maintenance team of the whole factory. By the way, he introduced Jiang Yan to the leadership members. Unexpectedly, he saw this in front of him. One scene.

Guo Jianjun had already noticed the factory leader who came in. When he saw that the factory director was about to speak, he quickly stepped forward and made a silencing gesture to the factory director.

He knew that what Jiang Yan and the others were doing now was very important and they could not be disturbed. Otherwise, he would not dare to stop the factory director from talking even if he was beaten to death.

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

When Guo Jianjun saw that the factory director was not talking, he pulled the factory director and the others outside the workshop.

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

"Director, Gong Jiang, Gong Wang and Gong Zhang have dismantled this precision segmenting machine and are now repairing and drawing the parts on the machine. I really can't disturb them now, I'm really sorry."

Director Zhao looked very depressed after hearing Guo Jianjun's words.

As the owner of a factory, there is never a place where I am not allowed to speak.

"Why did he play the piano randomly? He didn't report it to the factory leaders, so he dismantled the machine privately. This is really unorganized and undisciplined. If it doesn't work, I'll stop them."

A man about forty years old with glasses who was following Director Zhao scolded him and wanted to enter.

However, he was grabbed by Zhao Chang.

The man wearing glasses, whose surname is Zhou, is the deputy director of management technology at the 663 Factory.

Deputy Director Zhou is very worried right now. He doesn’t know what’s going on with the machines in the factory. Various situations arise. Most of the engineers he has on hand are sent out to work hard to repair the current machines. .

Jiang Yan and the others maintain only two fine-segmenting machines in the entire factory. This is the main machine for manufacturing gun barrels. Although the accuracy of this machine has dropped a bit, it can basically be used with a little effort. If this one fails, they can rely on it. For the remaining one, it is estimated that the tasks in the factory may not be completed this year.

The manufacturing of gun barrels is divided into cold forging process and traditional deep hole processing process.

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

The so-called "cold forging" probably involves the following process: first, punch a hole in the center of a blank that has undergone initial forging, heat treatment, and surface finishing, and then use a steel core with the same pattern as the rifling to pass through it. One end is stuck on the chuck of the cold forging machine, and the four hammer heads made of brass beat the blank evenly under the slow rotation of the chuck of the cold forging machine, making it elongate and finally turn into a gun of acceptable size. Tube.

In addition to these two fine section machines in the factory, the cold section process can be used to manufacture pipes.

The rest use traditional deep hole processing technology.

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

The rough process flow also requires a finished gun barrel blank (the size has been determined). One end of the blank is stuck on the chuck of the boring machine. A hole needs to be drilled in the center, and then the broach is inserted to process the rifling.

The process of processing fine and deep holes such as gun barrels is relatively difficult because the rifling knife works internally and the internal conditions cannot be seen from the outside. The processing can only be completed by relying on the experience of senior technicians.

They make barrels slower this way, and the scrap rate is higher.

The barrels manufactured by these two fine-segmenting machines account for half of the entire factory's barrel manufacturing.

Now that this situation has arisen, as the deputy director in charge of technology, why not be anxious?