Manager Duan, the equipment of our factory is still a lot worse, although the level of the machine tool you modified is very high, but it still does not meet the product standard of the German automobile gearbox, and the gear accuracy alone is an order of magnitude worse, can't the provincial department introduce a few imported CNC machine tools to us?" and Duan Yun walked in the workshop, Kong Jing asked.

"If we can directly purchase foreign advanced production line equipment, then our country's automobile industry will already be another grade. Duan Yun shook his head with a smile, and then said: "Don't say that the world's top core technology and equipment, even if it is a high-precision CNC lathe commonly used in developed countries, it is not sold to our country, you can't buy it if you have money, didn't your teacher tell you these things when you were in school?"

"I said something about the international technology blockade, but I didn't expect the blockade to be so severe. Kong Jing sighed lightly and said.

"This is also a matter of no way, but when our country was completely blocked by the West, not still developed two bombs and one satellite, so the current lack of hardware facilities in the factory, we also have to find a way to solve it ourselves, you are all college students, said that it is a senior talent trained by the country, although our factory is a little smaller, but there is an opportunity for you to display your talents, once the Santana car transmission technology is out, it is not only for our factory to bring benefits, but also for our Chinese automobile industry to make a great contribution, maybe you will become the pride of your alma mater, become a role model for countless peers。 Duan Yun said with a smile.

Although Duan Yun generally likes to use material rewards to motivate the enthusiasm of subordinate employees, which is the same method used by private bosses in the market to motivate employees, but in this era, there are still many people who value honor, and it is a very glorious thing to become an advanced model worker in the factory, and everyone in the factory praises it.

"This is too difficult, when I was in school before, I also had a lot of dreams, I feel that what I learned are very powerful technology, if I go out of school in the future, I will definitely be able to make some achievements, just now after coming to our factory, I find that it is really difficult to transform theory into practice, and after seeing these machines you modified, especially the automatic gear hobbing machine, it is simply a work of art, I never thought that someone would modify a machine like this, you are really amazing. Kong Jing lightly swept the bangs on her forehead as she spoke, and turned her head to look at Duan Yun.

"In fact, even if a person's ability is strong, what he can do is limited, you have just graduated from school, and have not really been exposed to R&D work, there must always be a process of adaptation, your level itself is very high, if our R&D team can work together to form a tacit understanding, it will definitely make our factory a business card of China's auto industry in the future......" Duan Yun said with a smile.

"Manager Duan!" At this time, Jia Zhiqiang and others, who were recording data on the other side of the workshop, immediately beckoned to Duan Yun and Kong Jing when they saw Duan Yun and Kong Jing coming over.

During this time, the 5 people in the R&D team worked very hard in the workshop every day, except for the high bonuses and small bungalows promised by Duan Yun before, they were also very strong people.

College students in this era are also very golden, and it is a great thing in itself to be able to enter the university campus from thousands of troops, although some college students have strange tempers and are not easy to get along with, but in terms of academics, they do have real talents.

In the past few days, the five of them have a very comprehensive grasp of the production process in the factory, including the machine modified by Duan Yun, and they all know the principle, and they have also drawn the drawings by hand.

The only thing that puzzled them was the technology used by Duan Yun in the circuit control of gear hobbing machine and carburizing furnace, because they were not professional in electronics, so they were still confused about the working principle of Duan Yun's use of chips to achieve analog digital control.

However, Duan Yun has always been secretive about these two core technologies, it is impossible for him to hand over such core technologies to a few college students who have just entered the factory, after all, Duan Yun has not yet established complete trust in them, once these college students master the core technology and jump to other peer manufacturers in the future, then it is equivalent to Duan Yun himself picking up a pit, this kind of thing Duan Yun will not let him happen.

And even if these college students don't understand the technology of electronic circuits, it doesn't matter, because their R&D group mainly develops automotive gearboxes, mainly needs mechanical technology, and does not use the circuit part, so it will not affect the R&D work of these five people.

"What are you researching?" Duan Yun asked them as he walked over.

"Manager Duan, what is this machine for?" Jia Zhiqiang asked Duan Yun with his hand pointing to a machine placed next to the factory.

"Well, this is a powerful shot blasting machine, using cast iron shot blasting, and this machine is occasionally used when some of the key core components produced by our factory. Duan Yun saw that Jia Zhiqiang was pointing at Cheng Qingyan after making the powerful spray, and explained with a smile.

The powerful shot blasting machine made by Cheng Qingyan is also a key equipment for processing Longteng automobile gearboxes.

Before Duan Yun passed the test, the first batch of Longteng gearbox samples imitating Lada gearbox reverse gear in the mountainous area, mining area forest field test and use process, often early damage, and Duan Yuan found through consulting information that the bending stress of the gear root of the gearbox is medium to high, the life test assessment situation is low, and there is a big gap between the reverse gear produced by the previous heat treatment technology and the design requirements.

Later, Duan Yun improved the heat treatment process, after the strong shot peening treatment of a reverse gear, the fatigue test was carried out on the assembly bench, and the maximum life was increased from no more than 5 hours to more than 25 hours under the torque equivalent to the engine output of 38kgm, and the life was increased by more than 5 times.

And this time the Longteng gearbox can win the national gold medal and obtain foreign trade orders, this powerful shot peening machine has also made a lot of contributions, otherwise, the performance of the Longteng gearbox without strong shot peening will be discounted, it is difficult to win the national gold medal.

Usually, this powerful shot blasting machine is not often turned on, usually only used twice a week, and the reverse gear that needs to be shot peened is processed in a unified manner, so Jia Zhiqiang and several of them have been in the factory for so many days, and they have not seen this machine used.

"It turns out that this is a powerful shot blasting machine. Jia Zhiqiang and the others were stunned when they heard this.