It's no wonder that Master Zhan will be so gaffe, the expansion joint process in Bai Yi's mouth may be a common pipeline connection process in a few decades, but in China, where the industrial base is almost zero, this process is an extremely advanced production technology. Pen, fun, and www.biquge.info

Baiyun factory is also in the Japanese occupation period after the expansion, only to obtain a set of expansion tools, before this time all the relevant tools by foreign experts to carry and be responsible for the operation, the master Zhan because of the spirit sensible, often sent by the factory supervisor to serve tea and water for foreign experts, during this period Master Zhan was extremely careful to observe every action of foreign experts.

For more than ten years, with his clever mind and profound understanding, he learned a lot of mechanical equipment operation, maintenance and superb technology from foreign experts, and because of this, Master Zhan gradually became a great figure in Baiyun Factory, but such a clever person, but he hit a wall everywhere in the expansion process, and he barely realized some ways after 20 years of repeated pondering.

Therefore, it has become Master Zhan's most stunt to press the bottom of the box, and he originally thought that he would go out in person in a few days, and this set of craftsmanship shook the field, but what Master Zhan didn't expect was that the stunt of pressing the bottom of the box in his hand, Bai Yi was like throwing cabbage, just throwing it out, how not to surprise Master Zhan, and how not to shock him?

When the people around saw Master Zhan like this, their eyes became colorful when they looked at Bai Yi again, shocked, surprised, happy, excited, and even a few faintly jealous, but each person's expression was different, but stripped of some personality elements, the remaining admiration and reverence were shared by everyone.

There is no way, Master Zhan's fame in Baiyun Factory is too great, the real "veteran of the Three Dynasties", such as the fake "worker technical expert", coupled with decades of life experience, the things that can surprise this old man in technology are almost extinct.

But he didn't expect that Bai Yi's simple words made Master Zhan like a giant thunderbolt, shaking the whole person to stiffen, so that even a blind person could see that the young man who was repairing the steam boiler was definitely a more powerful figure than Master Zhan.

However, no one in the field knew who such a powerful and young figure was, so all kinds of speculations came one after another, some said that it was a returnee top student, some said that it was the technical backbone of the Dongye Command, and some even concluded that Bai Yi was Li Jinglin's classmate at the University of Göttingen.

Bai Yi, who was debugging the pipeline, couldn't help but smile bitterly, and said in his heart that if he continued to develop like this, he would definitely be able to become the protagonist of the classic red romance drama, fortunately, such gossip speculation was quickly stopped by the serious-faced Section Chief Zhao, others didn't know him, but he knew that the young man in front of him was not interested in Li Jinglin at all, otherwise he would not have muttered in the workshop: "I can't even repair a boiler, and I graduated from the University of Göttingen, hum, it's a fucking shame......"

Bai Yi's voice was not loud when he said this, but Section Chief Zhao at that time was very close and heard it naturally clearly, so Section Chief Zhao at that time was very angry, you must know that in addition to his admiration and respect for Li Jinglin, he also had some strange feelings in it, even now, he still has a little bit of a mustard for Bai Yi's words.

But after thinking about it, I was relieved, after all, a young and talented person like Bai Yi, who is not a little arrogant? Not to mention others, which one of Li Jinglin or Master Zhan is not like this? What's more, having such arrogance is not necessarily a bad thing, the key is to see how to guide this arrogance.

As Director Lin of the Military Management Commission said, there is no chief officer in the army who is not arrogant, and as long as this arrogance is used in the right place, whether it is attacking a mountain or blocking an attack, all of them are scrambling to move forward, and the same is true in the technical field; as long as the mobilization is good, the technical cadres will also rush to the front.

Thinking of this, Section Chief Zhao couldn't help but think to himself, waiting for this matter, he must guide the young man in front of him well, fully mobilize his enthusiasm, even if it is to introduce some competition, he will not hesitate, isn't it a good healthy competition between this young man and Master Zhan at the moment? As long as you grasp the proportion, the competition generated by arrogance will also give birth to unexpected miracles, of course, Li Jinglin, the "technical authority" of Baiyun Factory, was automatically excluded by Section Chief Zhao.

Just when Section Chief Zhao was looking at how to adjust the work direction of the technical team in the factory in the future, Wang Dehua, who was sweating profusely, had already taken the pipe expander back from the warehouse, Bai Yi didn't have so much thought about everyone in the field, and now he just wanted to finish the things in front of him, and then go back to the dormitory to sleep comfortably.

It is precisely because of this that Bai Yi has fully achieved the selfless realm of ignoring things outside the window and only repairing the old boiler, but in this way, the impression of the people around Bai Yi is even higher, because of that kind of focused gaze and calm look, let the people around him see a rigorous and serious person with different experience and attitude.

If these people knew that Bai Yi was just in a hurry to sleep and speed up the progress, they would definitely find a piece of tofu and kill him immediately, but all this is no longer important, because everyone at this moment is attracted by Bai Yi's artistic-like skillful operation technique, and the principle of expansion joint is to apply axial pressure to the conical expansion rod of the tube expander.

The expansion rod in turn transmits the force to the bulb, which in turn gives a radial eye to the pipe wall, under this pressure, the pipe diameter is enlarged and the pipe wall is thinned. Using the principle of metal pipe plasticity, the pipe wall is in contact with the pipe hole wall, and when the gap between the pipe wall and the pipe hole wall is all expanded, the pipe wall will be permanently deformed.

When the pipe expander is taken out of the tube, the radial pressure added to the pipe hole on the tube sheet disappears, and the tube sheet should rebound, and the permanently deformed pipe is tightly clamped, and the pipe expansion joint is formed.

As we all know, metal has plastic characteristics, but this plastic characteristics are limited to a very small range, and this requires the use of expansion process, must be cautious, too much force too small, can not meet the process requirements, only in the case of uniform capacity, gradually expand the pipeline to a suitable extent, in order to finally achieve the goal.

It's just that this sentence is simple to say evenly, but behind it is the definition of the metal characteristics of the pipe and the pipe wall, the adjustment of the size and the complex calculation process after the synthesis of various data, especially the definition of the expansion rate, which must be controlled between 1% ~ 1.9%, such a small error rate, it is not only to understand the principle can be completed, otherwise Master Zhan may have worked hard for 20 years to barely master this technology.

However, although this is a bit troublesome for Bai Yi, it is not a difficult task, because during his internship in the aircraft carrier, he learned a lot of unique skills from the non-commissioned officer of the power compartment pipe loss, among which he also has a quick identification method for the matching and definition of general metal characteristics and pipe aperture, and as for the expansion rate, in addition to mastering a set of calculation formulas, it is like the periodic table, and a large number of data lists of different pipes are recorded.

In the words of a non-commissioned officer, if something really goes wrong or is damaged in the war, there is no time to use straw paper and calculators to calculate one by one, all of them must use their brains to sort out what they need at the first time, if they don't have this ability, don't think about getting on an aircraft carrier.

Bai Yi, who practiced this set of skills, did not go to the aircraft carrier, but came to the Baiyun Factory by mistake, how precise and complex the steam boiler on the aircraft carrier is, Bai Yi in the later stage of the internship can independently carry out simple maintenance, not to mention the old-fashioned steam boiler nearly a century ago?

As early as the moment he touched the pipeline, Bai Yi calculated the pore size, metal characteristics and expansion rate, and saw that all the characteristics were completely in line with the expansion process, so he decided to use this process for rapid maintenance.

Both hands use the pipe expander to evenly force the pipe, and the pipe in the middle gradually expands, and the outer pipe wall of the economizer is attached together, until the oxide scale around the pipe hole bursts out, Bai Yi's afterburner hand is suddenly retracted, and the root pipe is firmly fixed in the economizer.

In this way, in less than half an hour, Bai Yi replaced and fixed all the damaged economizer pipelines, immediately stood up and exhaled a long breath, wiped the sweat beads on his forehead and looked at Section Chief Zhao on the side: "Okay, reinstall the economizer and use it!" I'll leave the rest to you, and I'll have to rest for a while. ”

"Okay, okay, we'll do the rest, you rest first!"

Seeing that the boiler was repaired so quickly, Section Chief Zhao had already blossomed, nodded and agreed without saying a word, and then hurriedly beckoned the surrounding cadres and workers to reassemble the boiler, while Bai Yi dragged his tired body and quietly left in a hot and busy situation......

Just as Bai Yi quietly left the fourth workshop, in the conference room of the factory not far from it, the main leaders of the Military Management Committee sat around the conference table made up of four old tables, with solemn faces, and Lin Bo, the director of the Military Management Committee, who was sitting in the first place, was even more frowning, and kept knocking on the table with his hands.

I don't know how long it took, Lin Bo turned his head, looked at Li Jinglin, who was as cold as snow on the side, and asked earnestly: "Comrade Jinglin, is there really no other way than to replace the boiler parts?" You must know that workshop No. 4 must not be shut down at this time! ”