industrial overlord

Chapter 119 Surface Machining
Hearing Zhang Zhifang's self-introduction, Zhu Tiejun stepped forward, shook hands with him, and also introduced himself: "Manager Zhang, hello, I am the deputy production director of Hanhua Machinery Factory, and my name is Zhu Tiejun. This is Fan Shibin, chief of our technical section, and Lin Zhenhua, deputy chief of our technical section."

Zhang Zhifang shook hands with Fan Shibin and Lin Zhenhua respectively, and Xie Chunyan arranged for them to sit down respectively, and then said to Zhu Tiejun and his party: "Manager Zhang came from Shanghai. I am very interested in the method of shaft processing, and would like to contact us to see if there is any opportunity for cooperation.”

Zhang Zhifang said: "Yes, our company also often produces things with special curved surfaces. The processing technology in this area has always been a problem. Not long ago, I heard from a friend that there is an enterprise in Jiangnan Province that can Use mathematical methods to solve this difficult problem, no, I came here just because of the reputation. My two colleagues, Chang Qingbo and Yu Wenzheng, are comrades in our technical department, and they are very interested in this problem."

Zhu Tiejun pointed at Lin Zhenhua, and said, "Xiaolin is mainly responsible for the imitation of the five-axis. You should ask him for related technical issues."

Lin Zhenhua looked at Zhang Zhifang and the other three, and said, "I don't know what kind of parts are generally processed in Manager Zhang's unit. Our Hanhua Factory has made some technical reserves in this area, and may be able to provide you with some help. But, well, All the leaders are here, and there are some words that I may not be suitable to say, that is, the imitation five-axis processing technology, we also invested a lot of money in research and development, so..."

"Xiao Lin!" Xie Chunyan had no choice but to intervene. Lin Zhenhua's words were obviously implying the cost issue. When Zhang Zhifang came, he issued a letter of introduction from the Shanghai Chemical Industry Department. Can you talk about money with one mouth?
Alas, this Xiaolin is good everywhere, but the idea of ​​putting the economy in command is a bit too serious.Xie Chunyan said secretly in her heart.

Zhang Zhifang didn't take this seriously. He laughed and said, "I understand what Comrade Xiao Lin means. Don't worry, we won't take your achievements for nothing. If we can cooperate, we will definitely consider the cost. "

Lin Zhenhua didn't feel at all that he was at fault. He finally came up with a core technology, so there was no reason to throw it out for nothing.If you want us to help, yes, you can bring it with money or other benefits.He cast a sorry look at Xie Chunyan, and then asked Zhang Zhifang: "So, what do you want to know?"

Zhang Zhi gestured to Chang Qingbo and Yu Wenzheng who were sitting on the side, and the two began to ask questions.They had seen the drawing of the main shaft of the ice machine from Xie Chunyan before, and they also knew that the machining of several special-shaped surfaces was very difficult.Therefore, they began to ask about the details of processing, and almost every technical problem was ignored.

Lin Zhenhua has personally operated this process, so there is no difficulty in answering it.However, when he answered these questions, he still couldn't help being a little startled, because Chang Qingbo and Yu Wenzheng's professional skills are very good. In many places, Lin Zhenhua just mentioned it a little, and they were able to figure out the details. , and can also ask very specific questions.It's also fortunate that Lin Zhenhua didn't tell lies, otherwise a few sentences would have been covered up.

"Manager Zhang, it seems that their factory has mastered this technology very well. No wonder they can complete the processing of the spindle by machining." Chang Qingbo said to Zhang Zhifang.

Yu Wenzheng said with some regret: "Some further technical details, Chief Lin may not be willing to disclose, especially when it comes to the calculation of the envelope curve, I think Chief Lin seems to be keeping it a bit secret."

Zhang Zhifang said to Wenzheng: "It's right to have some reservations about the technology that people have finally researched."

Lin Zhenhua hurriedly said: "No, no, Director Xie testified, I have no intention of keeping it secret at all. It's just that I don't know what you plan to build. The derivation of the curve itself is not done by me. In fact, the main work is A wood model worker in our factory did it, but he didn’t come over today, so I can’t tell.”

"Wood modeler?" Zhang Zhifang was as shocked as everyone else, "Your wood modeler is also responsible for calculating curves?"

Zhu Tiejun said: "It's a worker named Hu Yang. His family background is slightly higher, so he is usually conservative. He loves to study very much, and his technical level is very good. We asked him to transfer him to the technical department several times, but he refused, so I have been working as a wood modeller."

"It's a waste of talents." Zhang Zhifang said, "What's the level of status? Chairman Mao's family is still a rich peasant. You can't choose your background, but you can choose your personal path."

As soon as this remark came out, everyone was a little stunned, and felt that the business manager had too much confidence.After Zhang Zhifang finished speaking, he also felt a little abrupt. He quickly smiled at everyone and said, "Section Chief Xiaolin, we came here today mainly to ask you for advice. We happen to have a part that needs to be processed now, and it also involves some special-shaped surfaces. , but it is much more complicated than your spindle. I want you to show us if it is possible to design a machining method to solve it.”

"What kind of parts?" Lin Zhenhua asked.

Zhang Zhi gestured to Chang Qingbo, and Chang Qingbo took out a drawing from his bag, handed it to Lin Zhenhua, and said, "Director Lin, this is our design drawing, please take a look."

Lin Zhenhua took the blueprint and spread it out to look at it. Fan Shibin also poked his head over.Zhu Tiejun didn't know much about this kind of thing, so he didn't make trouble for them.

On the drawing, there was a strangely shaped thing, like a huge leaf, bent at a strange angle.When Lin Zhenhua saw this picture, his first reaction was that someone was going to smash his place, because it looked too much like the blades of an electric fan.But he realized right away that this is by no means the leaves of an electric fan. There is no need for the leaves of an electric fan to be so complicated.

He knew that he had seen this blueprint, yes, the special-shaped workpiece that Hu Yang asked him to process last time was like this!Although there are some differences between the two, they must be the same kind of thing!From his perspective as a mechanical graduate student, it can be seen that this thing is either a propeller used on a ship or an impeller used on a steam turbine.If this is the case, then the so-called Manager Zhang, who is as straight as a professional soldier, must be of extraordinary status.And the wood model worker in the Hanhua factory may have some inexplicable relationship with Manager Zhang.

Lin Zhenhua's heart jumped violently. He felt as if he had touched a door. After opening this door, what would come out?

"Isn't this the thing in your office?" Fan Shibin also saw it.

Lin Zhenhua suppressed the fluctuations in his heart, pretended to be calm and said to Zhang Zhifang: "Manager Zhang, this picture of yours only marked the shape parameters, not the scale parameters. I don't know how big the final processed thing should be?"

Zhang Zhifang didn't speak, and Chang Qingbo replied for him: "Chief Lin, let's not talk about the problem of scale. You first estimate, like the equation of this curved surface, you, of course, and the wood model worker just mentioned Master, can you do it?"

Lin Zhenhua said: "Let's say that there is nothing to hide. To tell you the truth, we processed a similar curved surface some time ago when we were free. How about this? Please wait a moment, I will ask the factory manager for instructions. Let's see if the factory can send our workpiece, as well as Master Hu Yang, together."

Of course, Zhu Tiejun had no objection. After Lin Zhenhua asked Xie Chunyan for instructions, she used the phone on her desk to call Hanhua Factory, found Kong Haijiang, and asked him to send a car immediately to take the special-shaped workpiece in the office of Hanhua Industrial Company and Populus euphratica brought to Nandu together.

Lin Zhenhua remembered that Populus euphratica had always been unwilling to deal with the military, so the last time Yan Yuanhe invited him to help Changhong Factory, he declined.This Zhang Zhifang, if Lin Zhenhua guessed correctly, should have a certain relationship with the military.And the reason why he came to Jiangnan Province might be because of the news revealed by Yan Yuanhe.

Perhaps, it is time to invite Populus euphratica to come out of the mountain. An outstanding person like Populus euphratica should not be buried in the Hanhua Factory.But let him appear in front of Zhang Zhifang, is it a blessing or a curse?
From Fenghua to Nandu, that is 60 kilometers away.An hour later, a truck from the Hanhua factory drove into the compound of the office, and the special-shaped workpiece was placed in the truck. The porters Zhong Rulin and Lu Baoan jumped out of the truck, just as they came down from the upstairs after hearing the news. Lin Zhenhua and his party.

"Xiao Lin, we brought you that workpiece." Zhong Rulin said.

Lin Zhenhua said: "Master Zhong has worked hard. By the way, where is Lao Hu? Didn't I ask him to come with you?"

Zhong Rulin said: "Old Hu went out to saw boards. Director Kong was afraid that the leaders in the hall would be in a hurry, so he let us come here first."

They were chatting here, Zhang Zhifang, Chang Qingbo and Yu Wenzheng had also walked over.Lin Zhenhua stepped forward to say hello: "Manager Zhang, Chang Gong, Yu Gong, our piece has already been delivered, but this piece is too heavy to be unloaded. If you don't mind, can you go to the car to have a look. "

"No problem." Chang Qingbo and Yu Wenzheng replied together, and the two joined hands and jumped onto the carriage nimbly.As soon as they got up, the two of them let out an exclamation at the same time.

"What's going on?" Zhang Zhifang walked behind and couldn't help asking when he heard the exclamation of two subordinates.

"Manager Zhang, look." Chang Qingbo squatted in the carriage, pointing at the workpiece and said to Zhang Zhifang.

The tailgate of the truck had been lowered, and Zhang Zhifang was standing under the truck, and he could also see the workpieces in the truck.He only saw the first glance, and there was an expression of astonishment on his face, which was no different from Lin Zhenhua's expression when he saw the blueprint they took out just now.His mentality is also the same as that of Lin Zhenhua: too similar!

"Xiao Chang, do you think this is the same as the one you designed?" Zhang Zhifang asked.

Chang Qingbo observed the workpiece carefully, and replied in a low voice: "Manager Zhang, this should be a five-to-one model. The use should be exactly the same as what we designed, but there are some differences in design ideas. I didn't make it." computing, but my intuition tells me that this design has lower requirements on the host, and the speed can be improved."

Yu Wenzheng touched a curved surface on the workpiece with his hand, and said thoughtfully: "There is a small curved surface here. I don't know what it is for. However, I feel that it has something to do with the turbulence problem that I have not solved. This The curved surface may be used to eliminate turbulent noise. This point can only be judged by actual measurement.”

Zhang Zhifang asked in surprise: "Why, you mean, this thing is better than what you designed?"

Chang Qingbo and Yu Wenzheng nodded at the same time, and said, "Even if it's not better than our current design, at least the designer has a unique way of thinking that we don't understand."

Zhang Zhifang turned around, walked to Lin Zhenhua's side, and asked with widened eyes: "Chief Lin, I want to ask, why do you have this thing?"

Lin Zhenhua pretended to be nonchalant, and said: "This thing is actually a test product, the main purpose is to test whether our processing algorithm is correct."

"Where did its design drawings come from?"

"Yes..." Lin Zhenhua recalled the excuse Hu Yang gave him, and responded with it: "This drawing was copied from a mechanical processing manual produced in the United States."

"This is impossible!" Zhang Zhifang said decisively: "How could such a drawing appear in a public publication? I am not afraid to tell you that such a drawing is the core military secret in any country!"

Zhang Zhifang said the last sentence in a low voice, but several people around him also heard it.As soon as this remark came out, Zhu Tiejun and the others standing aside were startled. They looked at Zhang Zhifang and then at Lin Zhenhua, not knowing why things changed like this.

Lin Zhenhua nodded and said, "Manager Zhang, what you said may also make sense. In fact, this blueprint was drawn by our master Hu Yang. I don't know why he drew this blueprint."

"Where are the others?" Zhang Zhifang asked forcefully.

"Our car came in a hurry just now, and he happened to be not in the factory, so he didn't come over. Why don't you wait a little longer, I'll call the factory to find him immediately, and then send him over by car."

"No need!" Zhang Zhifang said, "I'll go to the Hanhua factory with you now."

"Ah?" This time it was Lin Zhenhua's turn to be surprised, "Why, Manager Zhang, is this person very important?"

Zhang Zhifang nodded and said: "That's right, this person is probably a genius, someone we are extremely short of. It's also possible... well, I can't tell now, let's go, let's go right away, I must see him right away."

(End of this chapter)