Chapter 49

"En ~ ~"

after looking at it carefully for a while, the middle-aged man opened his eyes and narrowed again. He held his chest in his hands and shook his round head: "no ~ ~ it's not precision casting, it's! It is not only the most important mold manufacturing method in the investment casting process, but also a new one

The middle-aged people are more and more frightened. Although there are only a few paragraphs written on the paper, and they are not coherent, they can see at a glance what Zhuang Jianye is doing with his technical quality. But just because of this, he is very strange, because Zhuang Jianye's writing is not the existing manufacturing method of turbine directional casting mold in Yonghong factory, but a brand-new production scheme.

And the ideas and the data seem reasonable.

This made him a little surprised. As a heated part of aero-engine, which is second only to turbine blade, the working environment of turbine director is very bad. Because of this, its production has always been a difficult problem in aero-engine manufacturing.

It's not easy to make a new mold method, that is, the old mold production process can be completely understood.

The second general assembly workshop is famous for its excellent investment casting technology in China. One of them is that the second general assembly workshop has a unique experience in the investment casting mold of turbine orienteer. But behind this brilliance is the continuous exploration of the second general assembly workshop for ten years, which has made today's achievements.

It can be seen how difficult it is to master this kind of investment casting mould.

The problem is that the second general assembly workshop is still using mature technology, while Zhuang Jianye is doing a brand-new design of investment casting mold, which seems to be progressing well, and the difficulty and hardship are not comparable.

Then he looked at Zhuang Jianye, who had been writing on his desk, and asked, "little comrade, did you make the mold of the turbine director yourself?"

"I want to be with others, but no one else. I have to be myself." Zhuang Jianye was very annoyed by the guy who was shouting beside him. He recognized it when he recognized it. Why did he call it out? He was so scared that he almost interrupted his train of thought, so he was not polite.

The middle-aged man didn't care about the thorn in Zhuang Jianye's words. Instead, he pulled a chair from the side and sat down very impolitely. He looked at what Zhuang Jianye had just written. Like a curious baby, he continued to ask, "is this water-soluble living block molding method?"

Zhuang Jianye understood that the goods nearby were not for information, but for making trouble on purpose. There was such a man who was not at ease. He simply put down his pen, turned his head and looked at the middle-aged man: "that's right, it's water-soluble movable block molding method"

"I remember that our factory used the combination method of single leaf wax mold and disc body, and your one seems to be the same as the factory It's not quite the same in the library. " The middle-aged man looked at Zhuang Jianye in doubt.

Zhuang Jianye's face turned red slightly. He said that the goods were still experts. He had spent all the technical documents. He knew what method was used in the factory. Now he was embarrassed to meet the experts.

But he can't admit that he made the original documents look bad. If director Yan knew, he would not be able to knead his face and round himself. So Zhuang Jianye quickly adjusted his state. He looked at the middle-aged man with his face not red and heart not beating, until he felt a little hairy in his heart. He touched his chubby round face and asked, "what's the matter? What's the problem? "

"Don't you think it's difficult to grasp the accuracy of the turbine directional device made by the factory method?"

The middle-aged did not expect that Zhuang Jianye had seen him for a long time, but asked him such a question. For a moment, he did not know how to answer it. Zhuang Jianye was not ready to give the middle-aged a chance to speak.

He felt very empty, but he couldn't give the initiative to others, so he immediately added: "the answer is obvious, it must be difficult to grasp, because in all the two methods of single blade wax pattern and disc combination method, whether it is the combination of pressing and grinding tools or welding combination, complex large fixtures are needed, which are not only difficult to operate, but also need to be replaced frequently How to grasp the accuracy of such a difficult operation

"This..." The middle-aged man frowned and wanted to open his mouth, but Zhuang Jianye held out his hand and continued: "I know you want to say that the accuracy will be more guaranteed if you use the steel live block method? That's right. Many American aviation manufacturing enterprises use this method. The problem is that the United States is rich in money and can afford the high cost of completing the steel block. Our factory has a thin foundation and few resources. This method, which costs four times more than other molds and takes a long time, is not practical for our factory at all. "

With that, Zhuang Jianye breathed a sigh, his face was filled with a look of compassion, and then said: "so I think about it, the water-soluble movable block molding method is good, the molding accuracy is guaranteed, at the same time, the cost is not high, the more important thing is to remove the complex large fixture ring, greatly reducing the manufacturing difficulty, which is very suitable for our factory."

After saying such a long line of words, Zhuang Jianye was also a little thirsty. He picked up the teapot on one side and drank some water. Seeing this, the middle-aged man finally seized the opportunity to speak: "it seems that you have a lot of research on the precision casting of turbine directional device."

"It's OK. College is flight power engineering. I've done research on the turbine director. I tell you, the turbine director is very important. If there is no such thing as the first stage turbine and the second stage turbine, the air flow can't be smoothly introduced backward. But just because of this, the working environment of the director is very bad, and the requirements for the components are very high. Fortunately, it's very difficult for the turbine director It's fixed on the turbine shaft. Unlike the blade, it moves at a high speed without high-speed centrifugal force, so it's a little more difficult... "After drinking the water, Zhuang Jianye came back to life like man Xue. Let's start to popularize the basic knowledge of turbine directional device. It's like holding on for countless years and finally finding a bosom friend to talk to. You can't stop talking.

In fact, Zhuang Jianye's idea is very simple. He quickly takes the mill away, so that he won't ask questions here, and if he asks questions, he will be broken.

As a result, the middle-aged people next to him are more patient than him. They even take care of themselves, pour a glass of water and listen to it as if they were listening to storytelling.

Zhuang Jianye was convinced that such boring things could be heard, but that's it, because he could get off work, so he looked up at the clock on the wall and laughed apologetically: "sorry, I'm off work. Have you found your information? If you don't find it, come back to work in the afternoon. "

This is the order of visiting. The middle-aged man was disappointed. He stood up and straightened his old Zhongshan suit. He nodded impolitely: "OK, I'll come back in the afternoon." Then he went to the door. When he was going out, he suddenly thought of something. He turned his head to Zhuang Jianye and asked, "little comrade, I haven't asked your name yet."

"Zhuang Jianye!" Zhuang Jianye replied, walked out of the archives, turned back and locked the door. The middle-aged man standing on one side looked at Zhuang Jianye in surprise, as if he knew Zhuang Jianye again: "are you Zhuang Jianye?"