The worker in charge of feeding neatly placed the tooth embryos on the feeding rack made of angle iron, and with the slow rolling of the knife holder, the iron filings quickly slipped off under the washing of the cooling oil, and a gear was already ground in just a moment.

Jia Zhiqiang and others were surprised to see this scene, from the appearance, this gear hobbing machine is indeed a milling machine modification, but it is more bloated than the general milling machine, with an additional set of peripheral equipment and a circuit box, because it is wrapped in a shell, so you can't see the original situation inside, and you can't know how it works.

But this modified gear hobbing machine is really efficient, and the performance is stable and low noise, and the operation is even more foolish, a young worker who does not look very old just press the button, and the rest of the time is used to carry raw materials and finished products.

"How is this possible...... Jia Zhiqiang racked his brains and couldn't figure out how this gear hobbing machine was modified, his mind repeatedly flashed the drawings of the milling machine in the school, but he never wondered how Duan Yun realized the automatic gear hobbing mode.

And what makes Jia Zhiqiang and others a little incomprehensible is that the gear hobbing machine modified by Duan Yun can be adjusted through the control board, in fact, it is possible to realize these adjustment functions, but there are many lines and parts that need to be modified, and at present, this automatic gear hobbing machine seems to have very few peripherals, which requires very clever technology to achieve, even if they are college students, it is definitely not easy to achieve such a technical modification.

"Manager Duan, can you disassemble the shell and let us see the inside of this machine?" Kong Jing turned to Duan Yun at this time and asked.

"It's work time, work can't be stopped, and they have a production quota every day. Duan Yun shook his head slightly, and then said: "But it doesn't matter, I can show you the modification drawings of this gear hobbing machine when I go back, in addition, anyway, you also live in the office building at night, and there are security guards on duty at night in the workshop, I will tell them, you can take this machine apart at night to take a look, but you must ensure that it is all restored before the second day of work." ”

"That's great. Jia Zhiqiang said after hearing this.

Duan Yun's machine really aroused the great curiosity of these students, after all, everything they learned in school before was from textbooks, and the machine that Duan Yun modified was obviously not in the textbooks.

"This is the current situation in our factory, lack of manpower can only rely on technological innovation to improve product quality and output, now with your joining, I think the future development of our factory will be better." Duan Yun said to a few people with a smile.

"You're pretty good, these machines are designed and modified by yourself?" Kong Jing asked.

"Sort of, the main thing is that when I first came to the labor service company, the factory had been losing money for three consecutive years, and I was under a lot of pressure, and at that time, I was almost immersed in the factory for more than ten hours a day, and I barely managed to get these things. Duan Yun pointed to the gear grinding machine and carburizing furnace on the other side of the workshop with his hand, and said to Jia Zhiqiang: "The other gear grinding machine and carburizing furnace over there are also modified, these are the treasures in our factory, it is by virtue of these equipment, the Longteng automobile gearbox produced by our factory has won the national gold medal, and the products have been exported overseas, so in my opinion, although our country's industrial strength is poor, as long as we can contribute our own wisdom, we will one day achieve corner overtaking." ”

"That's a good point!" Kong Jing said approvingly.

"Can you show us the gear grinding machine and carburizing furnace over there?" Jia Zhiqiang stared at the gear grinding machine and carburizing furnace in front of him, and said to Duan Yun.

"Absolutely. Duan Yun smiled slightly when he heard this, and then led a few people forward.

The next visit made Jia Zhiqiang and others feel incredible.

It is really hard for them to imagine how Duan Yun can make so many successful equipment transformations in terms of machinery, especially the transformation of carburizing furnaces, even Jia Zhiqiang They don't know much about this kind of equipment, including some machinery factories in Taiyuan do not use carburizing furnace equipment, and the labor service company, a large factory-run collective, can actually introduce this kind of advanced equipment, and Duan Yun has also made digital transformation, which in the eyes of their college students, even if they are professors in their universities, it is estimated that they do not have such a high level of transformation of such equipment。

For a whole morning, Duan Yun led the five of them to visit all the production equipment in the factory, and introduced the production process and various technical parameters of Longteng gearbox, and Duan Yun also talked about the establishment of a technology research and development group with them as the core backbone in the future.

After getting off work at noon, Duan Yun left the factory, while Jia Zhiqiang and the five of them came to the canteen for lunch.

"Did you say that the equipment in the factory was designed and modified by Duan Yun?" Sitting around the dining table, Guo Xiaoming asked his companion.

"I've seen his automatic lathe design in magazines before, it's not a new technology, he just copied other people's designs and used them, it's not a big deal. Liu Yijiang said disapprehantly.

"I don't think it's that simple, even if the automatic lathe modification plan can be found in the magazine, but the milling machine modification gear hobbing machine is so powerful, I still can't figure out how it works, it seems that we still underestimated him before, he should indeed be a very technical person. Jia Zhiqiang said with some emotion.

If when they first entered the venue, these college students were still a little arrogant when they faced Duan Yun, then now their arrogance has been reduced a lot.

As mechanical students, they can naturally see how difficult it is for Duan Yun to make technical improvements to these equipment, especially the modification of gear hobbing machines and carburizing furnaces, which simply subverts their inherent cognition, and such mechanical technical attainments are beyond the reach of college students.

"I also feel that Manager Duan is not a simple person. Kong Jing also interjected at this time, only to hear her continue: "I don't know where he got the technology of modifying the equipment from, but judging from the explanation he just had, he is definitely not a layman, in terms of mechanical equipment, he has his own unique insights and cognition, there are some things that cannot be learned in textbooks, this person is really powerful." ”

"That's kind of interesting......" Jia Zhiqiang said thoughtfully.

"I think Manager Duan is very good to us, the factory treats us well, and he also understands technology, and it will be easy for us to communicate with him in the future, so we should stay in this factory and do something practical and make a career." Kong Jing said.