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 director of production of Hanhua Machinery Factory, and my name is Zhu Tiejun. This is Fan Shibin, the head of our technical section, and this is Lin Zhenhua, the deputy chief of our technical section. ”

Zhang Zhifang shook hands with Fan Shibin and Lin Zhenhua respectively, Xie Chunyan arranged for them to sit separately, and then said to Zhu Tiejun and his party: "Manager Zhang is from Shanghai, he heard that in the process of tackling key problems of our 210,000 ice machine spindles, we used the method of imitating five-axis machining, and I am very interested, and I want to contact us to see if there are any opportunities for cooperation." ”

Zhang Zhifang said: "Yes, our company often has to produce some special curved things, and the processing technology in this area has always been a problem. Not long ago, I heard from a friend that there are enterprises in Jiangnan Province that can solve this problem with mathematical methods. My two colleagues, Chang Qingbo and Yu Wenzheng, are comrades in our technical section, and they are very interested in this issue. ”

Zhu Tiejun pointed at Lin Zhenhua and said: "The matter of imitating the five axes is mainly responsible for Xiaolin, and you can learn about the technical issues from him." ”

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, but our Hanhua factory has made some technical reserves in this regard, and may be able to provide you with some help." However, all the leaders are here, and there are some things that I may not be suitable to say, that is, the processing technology of imitation five-axis, we have also invested a lot of money to develop it, so ......"

"Kobayashi!" Xie Chunyan had to intervene, Lin Zhenhua's words were obviously hinting at the issue of expenses, when Zhang Zhifang came, he issued a letter of introduction issued by the Shanghai Municipal Department of Chemical Industry, how can it be regarded as a brother unit, how can he talk about money with one mouth?

Alas, this Xiaolin, nothing is good, but this idea of being in charge of the economy is a bit too serious. Xie Chunyan said secretly in her heart.

Zhang Zhifang didn't think about this, he laughed and said: "I understand what Comrade Xiaolin means. Rest assured, we will not take your gains for nothing. If we can cooperate with both sides, we will definitely give full consideration to the cost. ”

Lin Zhenhua didn't feel that he was wrong at all, and finally came up with a core technology, how could there be any reason to throw it out in vain. If you want us to help, you can, take money, or take other benefits. He threw an apologetic 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 already seen the drawings of the ice machine spindle from Xie Chunyan before, and they also knew that the processing of several special-shaped surfaces was very difficult. Therefore, they began to ask about the processing details, and almost every technical question was not missed.

Lin Zhenhua has personally done this process, so there is no difficulty in answering. However, when he answered these questions, he couldn't help but be a little shocked, because Chang Qingbo and Yu Wenzheng had very good professional skills, and in many places, Lin Zhenhua only mentioned it slightly, and they were able to figure out the details, and they could also ask very specific questions about their surnames. It's also a shame that Lin Zhenhua didn't tell a lie, otherwise three or two sentences would have been ruined.

"Manager Zhang, it seems that their mastery of this technology is indeed very good, no wonder they can use machining methods to complete the processing of the spindle." Chang Qingbo said to Zhang Zhifang.

Yu Wenzheng said with some regret: "Some further technical details, Section Chief Lin may be reluctant to disclose, especially when it comes to the calculation of the envelope curve, I think Section Chief Lin seems to be a little confidential." ”

Zhang Zhifang said to Wen Zheng: "The technology that people have worked hard to develop, and it is appropriate to have reservations." ”

Lin Zhenhua hurriedly said: "No, no, Director Xie testified, I don't mean to keep it secret." It's just that I don't know what you're going to build, and I didn't do anything about the derivation of curves, but in fact, the main work was done by a wood molder in our factory, and he didn't come here today, so I can't say clearly. ”

"Wood molder?" Zhang Zhifang was shocked like everyone else, "Your wood molder is still responsible for calculating curves?" ”

Zhu Tiejun said: "It is a worker named Populus euphratica, and his family composition is a little higher, so he is usually more conservative. He loves to learn and has a very good technical level. We said several times that we wanted to transfer him to the technical department, but he refused, so he kept working as a wood molder. ”

"What a waste of talent." Zhang Zhifang said, "What is the level of composition, [***] family is still rich peasants, background cannot be chosen, personal path can be chosen." ”

As soon as these words came out, everyone was a little stunned, and they all felt that this business manager was too confident. After Zhang Zhifang finished speaking, he also felt a little abrupt, and hurriedly smiled at everyone and said, "Section Chief Xiaolin, we came here today mainly to ask you for advice. We happen to have a component that needs to be machined, and it also involves some profiled surfaces, but it's much more complicated than your spindle. I'd like to ask you to show us if it's possible to come up with a machining method and solve it. ”

"What kind of parts?" Lin Zhenhua asked.

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

Lin Zhenhua took the drawings and spread them out, 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, a strangely shaped object is drawn, like a huge leaf, bent at a strange angle. When Lin Zhenhua saw this picture, his first reaction was that someone wanted to smash his own field, because it was too much like the blades of an electric fan. But he immediately reacted, this is by no means the blade of an electric fan, and the blade of an electric fan does not need to be so complicated.

He knew that he had seen this drawing, and that's right, the special-shaped workpiece that Hu Yang asked him to process last time was like this! There are some differences, but they're definitely the same thing! From his perspective as a graduate student in mechanical engineering, it can be seen that this thing is either a propeller used on a ship, or an impeller used in a steam turbine. If this is the case, then the so-called Manager Zhang, who has a straight waist like a professional soldier, must have an extraordinary identity. And the wood mold worker in Hanhua Factory may have some inexplicable ties 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 that the thing you have in your office?" Fan Shibin also saw it.

Lin Zhenhua suppressed the fluctuations in his heart, pretending to be calm and said to Zhang Zhifang: "Manager Zhang, your picture is only marked with shape parameters, not scale parameters, I don't know how big the things you finally process should be?" ”

Zhang Zhifang didn't speak, and Chang Qingbo replied for him: "Section Chief Lin, let's not talk about the problem of scale. You first estimate whether you, and of course the master carpenter, can make an equation like this surface. ”

Lin Zhenhua said: "We have no basis for what we say, we don't hide it from you, we were idle some time ago, and we once processed a similar surface. In this case, please wait a moment, and I will ask the factory director for instructions to see if I can let the factory send our workpiece and Master Hu Yang over one piece. ”

Of course, Zhu Tiejun didn't have any opinions, Lin Zhenhua asked Xie Chunyan for instructions, and then dialed the Hanhua factory with the phone on her desk, found Kong Haijiang, and asked him to immediately send a car to bring the special-shaped workpiece in the office of Hanhua Industrial Company and Hu Yang to Nandu.

Lin Zhenhua remembered that Hu Yang had always been reluctant to deal with the military, so the last time Yan Yuanhe invited him to help in Changhong Factory, he refused. This Zhang Zhifang, if Lin Zhenhua did not guess wrong, should have a certain relationship with the military. And why he came to Jiangnan Province, maybe it was the news revealed by Yan Yuanhe.

Perhaps, it is time to invite Populus euphratica out of the mountain, and such an excellent person as Populus euphratica should indeed 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, the distance is 60 kilometers. 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 car, and the porters Zhong Rulin and Lv Baoan jumped down from the car and met Lin Zhenhua and his party who heard the news from upstairs.

"Xiaolin, we sent you that artifact." Zhong Rulin said.

Lin Zhenhua said: "Master Zhong has worked hard. By the way, what about Lao Hu? Didn't I ask him to come along? ”

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

They were chatting here, and Zhang Zhifang, Chang Qingbo and Yu Wenzheng had already come over. Lin Zhenhua stepped forward and greeted: "Manager Zhang, Chang Gong, Yu Gong, our piece has been transported, but this piece is too heavy and difficult to unload." If you don't mind, can you go to the car and see it? ”

"No problem." Chang Qingbo and Yu Wenzheng replied together, and the two of them jumped into the carriage with agility. As soon as they went up, the two of them let out an exclamation at the same time.

"What's going on?" Zhang Zhifang walked behind, heard the exclamations of his two subordinates, and couldn't help but ask.

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

The tailgate of the truck has been lowered, and Zhang Zhifang can see the workpiece in the compartment while standing under the car. He only saw it for the first time, and a shocked expression appeared on his face, which was no different from Lin Zhenhua's expression when he saw the drawings they took out just now. His mentality is the same as Lin Zhenhua's: too similar!

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

Chang Qingbo carefully observed the artifact and replied in a low voice: "Manager Zhang, this should be a five-to-one model. The use should be exactly the same as our design, but there are some differences in design ideas. I didn't do the math, but my gut told me that the design was less demanding on the host and could be a little faster. ”

Yu Wenzheng stroked a curved surface on the workpiece with his hand, and said in thought: "This place, there is a small arc, I don't know what it is for. However, I feel that it has something to do with the turbulence problem that I have never solved, and this arc may be used to eliminate turbulence noise. This point can only be judged by actual measurement. ”

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

Chang Qingbo and Yu Wenzheng nodded at the same time and said: "Even if it is not better than what we design now, at least the designer has a unique idea, which we don't understand." ”

Zhang Zhifang turned around, walked to Lin Zhenhua's side, narrowed his eyes and asked, "Section Chief Lin, I want to ask, how can you have this thing?" ”

Lin Zhenhua pretended to be casual and said: "This thing is actually an experiment, and the main purpose is to test whether our processing algorithm is correct. ”

"Where did the design drawings come from?"

"Yes......" Lin Zhenhua remembered the excuse given to him by Hu Yang, so he took it out and dealt with it: "This drawing was copied from a machining manual from the United States. ”

"It can't be!" Zhang Zhifang said categorically: "How can such drawings appear in public publications? I'm not afraid to tell you that such a picture, in any country, is the most core military secret! ”

The last sentence, Zhang Zhifang said in a low voice, but several people around him also heard it. As soon as these words came out, Zhu Tiejun and the others who were standing on the side were shocked, they looked at Zhang Zhifang and then at Lin Zhenhua, and they didn't know why things changed like this.

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

"What about others?" Zhang Zhifang asked.

"Our car came in a hurry just now, and he happened to be out of the factory, so he didn't come. If you don't wait, I'll call the factory and find him right away, and then I'll send him by car. ”

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

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

Zhang Zhifang nodded and said, "That's right, this person is likely to be a genius, a person we are extremely lacking." It is also possible ...... Alas, it's not clear now, let's go, we'll go at once, I must see him right away. ”

(To be continued)