Looking at the materials she had just borrowed from the library, Cheng Qingyan quickly entered a state of settling.

As a newcomer who has just entered the technical department, Cheng Qingyan still has some ambitions for work and technology.

Nowadays, there are common people in the departments of the organs and departments who are floating and eating big pots of rice to make a living, but this has not affected Cheng Qingyan, who is new to the factory.

As early as when she was in secondary school, she often brought some technical books to her father for advice and exchange, and the father and daughter would also talk about some equipment and technical things in the Red Star Gear Factory, so although Cheng Qingyan had just entered the factory for less than a year, she already knew the various technical equipment of the factory.

It's just that in the past two years, my father doesn't seem to have much focus on high technology, and Cheng Changlin is now more enthusiastic about all kinds of social entertainment and fighting for power and money in the factory, and the father and daughter have very little discussion on technology, and they can't talk about it for almost a month.

In Cheng Qingyan's view, the agricultural machinery gears currently produced by the Red Star Gear Factory are a very backward product, almost more than ten years have not been much improvement in technology, the processing accuracy is low, only about six to seven grades, compared with the processing accuracy of foreign imported gears above the fifth level, there is still a big gap.

In addition to the gear machining accuracy, the process of surface hardness of the gear produced by Red Star Gear Factory is also backward.

Nowadays, the hardness processing of gears in Red Star Gear Factory mainly relies on traditional heat treatment to complete, and this heat treatment process parameters are still left when SL was established, and the gearbox gears used to process agricultural machinery are not a big problem, but there are still many problems in the wear resistance, fatigue resistance and corrosion resistance of the workpiece.

And now Cheng Qingyan's recent focus on the research of strong shot peening technology is what she used to see from the relevant materials found in the school library when she was in secondary school.

The so-called power shot peening is a surface strengthening process, that is, a cold working process that uses pellets to bombard the surface of the workpiece and implant residual compressive stresses to improve the fatigue strength of the workpiece. It is widely used to improve the mechanical strength of parts, as well as wear resistance, fatigue resistance and corrosion resistance.

The advantages of shot peening are that the equipment is simple, the cost is low, it is not limited by the shape and position of the workpiece, and it is easy to operate.

Although there are also powerful shot peening equipment for introducing this gear from abroad, in this precious year of foreign exchange, this kind of equipment is given priority to the military industry, and the Red Star Gear Factory is naturally unable to obtain this kind of 'mother-raised' unit.

Cheng Qingyan is trying to design a simple shot peening equipment by drawing on foreign materials, which will improve the product quality of the gear factory to a certain extent, at least extend the service life of the gear.

"Xiaoyan, let's eat. Just as Cheng Qingyan was writing and drawing in her notebook against the information, her mother's voice came from the kitchen.

"Uh. After Cheng Qingyan answered, she took her eyes off the books, got up and walked to the kitchen to help her mother serve food.

Braised eggplant, stewed hairtail, home-cooked tofu, seeing the sumptuous dinner steaming on the dinner table, Cheng Qingyan suddenly felt her index finger wide open, and picked up the chopsticks to pick up the eggplant.

"Wash your hands!" her mother glanced at her.

Cheng Qingyan stuck out her little tongue and turned around and walked to the kitchen.

"Lao Cheng, hurry up and come over for dinner. Yang Xiufang took a bowl of rice from the steamer on the ground, put it on the table and said, "What's wrong with you today?

"It's okay!" Cheng Changlin extinguished the cigarette in his ashtray, got up and sat down at the dinner table.

"My dad must have had a falling out with the factory leaders because of something at work. At this time, Cheng Qingyan also sat down at the dinner table after washing her hands, pouted and said, "Mom, you don't know, my dad's stubborn temper, what he believes, other people's ten cows can't pull back." ”

"Hmph......" Cheng Changlin snorted angrily, and then said: "If I really quarreled with the factory secretary, I would admit it, but I let a young young worker who had just entered the factory for a month criticize him, and ...... in front of the leaders and cadres of the whole factory."

"What!?"

As soon as Chang Qinglin's words fell, Cheng Qingyan's mother and daughter were stunned.

"Dad, it's impossible, right? Which worker is so bold as to dare to criticize you?" After a while, Cheng Qingyan said with a surprised face.

"Lao Chang, what the hell is going on?" Yang Xiufang also asked with a frown.

"That's the ......" Cheng Changlin sighed, and said the original thing about the factory meeting this morning, and added a sentence at the end: "I really didn't expect that Zhao Dongsheng to have this hand, using himself as a fort, using an apprentice as a cannonball, and beating me and Director Qin to pieces......

"Lao Zhao has been a secretary for decades, and no one in the factory knows that he is the best at getting power, Qin Gang has gone a few factory directors before, who can get a secretary?

"What do you know? If it weren't for Qin Gang, would I be able to become this chief engineer now? Isn't your propaganda director also the director of Qin's factory? Be a man with a conscience!" Cheng Changlin paused, and then said: "And Zhao Dongsheng has always been on the wrong side with me, he has long wanted to arrange a more obedient person to replace me...... Anyway, this Zhao Dongsheng is a hidden danger, if I don't weaken him, I will be overshadowed by him sooner or later!"

When he said this, Cheng Changlin was slightly excited, he couldn't say this kind of thing in the unit, so he could only go home to vent.

"Dad, don't worry, I will always support you, daughter!" Cheng Qingyan showed a well-behaved smile, and asked after a while: "By the way, Dad, is that Duan Yun you are talking about also a technician?"

"It's just a small apprentice in a workshop, the stupid boy who committed suicide some time ago!" Cheng Changlin said.

"Is it him!?" Cheng Qingyan was shocked when she heard this.

"I don't know where this kid copied the lathe technical transformation plan, and he has become a celebrity in the eyes of the secretary, Tian Feng, this kid is also a fool, and he was actually tricked by Duan Yun's stupid boy, today's things are very passive, and my old face is about to be lost!" Cheng Changlin said with some annoyance.

"I see, I ......understand," Cheng Qingyan said abruptly.

"Got it?" Cheng Changlin turned to his daughter and asked.

"I saw that Duan Yun the night before yesterday, he also went to our factory staff night school to study, I heard that he only had a junior high school education, I was still strange at the time, it stands to reason that our factory workers must at least graduate from a technical school at the threshold for registration for supper...... It seems that the secretary should have arranged it for him. Cheng Qingyan said.

"What a joke! A junior high school student also wants to take the night college exam, he just doesn't know how many pounds and taels he has, and he really thinks that he can go to college and climb to the sky with a secretary!" Cheng Changlin's face flashed with disdain, he had a bit of intellectual loftiness and pride in his bones, and he never put ordinary low-educated workers in his eyes, and after a while, Zhengse said to Cheng Qingyan:

"Xiaoyan, stay away from this kind of stupid boy who doesn't know the height of the sky in the future!"

"Hmm. Cheng Qingyan responded casually, but a flash of doubt flashed in her clear eyes......