Rebirth of the Auto Giant

Chapter 82 I want to be the factory director

Now in the shop, Wang Shi has planned a single room in the repair shop as a design and drawing workshop.

When he was not repairing cars, Wang Shi would draw and design drawings for a turbo four-cylinder diesel engine in the workshop.

As a senior automobile mechanic who graduated with a bachelor's degree and has been practicing in the society for more than ten years, Wang Shi has professionally and systematically studied automobile materials, automobile technology, etc.

Wang Shi's engine design has now reached the cylinder head stage.

Wang Shi spent four days designing this cylinder head.

Check the size, chamfer and other data of each place on the drawing. If no problems are found, write down the required materials and processing precautions.

The cylinder head material is generally made of gray cast iron or alloy cast iron. Alloy cast iron is much more comprehensive than gray cast iron.

The alloy cast iron material reduces the weight of the engine and improves the vehicle's fuel economy. Under the same structure, it can reduce the mass by 40% to 60% compared with cast iron materials.

Aluminum alloy has good thermal conductivity and good cooling performance, making it an excellent cylinder material. Adding cu to aluminum alloy can improve thermal stability, and adding mg can increase the hardness of castings.

Aluminum alloy has good thermal conductivity, which is also helpful to increase the compression ratio and improve the economy of the engine. Later, aluminum alloy cylinder heads were used more and more.

However, the price of aluminum alloy is more expensive than gray cast iron, which is not suitable for China, which has an annual steel production of 43.34 million tons, not to mention that I am still a self-employed person.

This is a four-cylinder diesel engine specially designed for agricultural cargo tractors. The requirements are not that high. As for using gray cast iron, which will increase the weight of the engine, the increased turbocharged horsepower is more powerful and more powerful than similar products.

It saves fuel and can offset material defects.

Taking all aspects into consideration, Wang Shi chose ductile iron as the engine material for this engine. Of course, he also used the best aluminum alloy on it.

After drawing the cylinder head picture, Wang Shi carefully put it away.

"Hey, computers are more convenient." Wang Shi rubbed his numb wrist.

I spend several hours every day on drawing. If I had this energy before, I would go to Peking University and Tsinghua University in the morning.

It's purely handmade. I haven't written ten words in half a year before. Now I spend so much energy on drawings. Looking at the pile of drawings, Wang Shi feels a little envious of himself.

Looking at the Shanghai brand watch on his wrist, it was already 11:51 noon. Wang Shi packed up his things, locked the room and went outside to talk to his apprentice Lin Zhengtang: "Zhengtang, I'm going to pick up your wife. If you need anything, come see me at home."

." Wang Shi said.

"Okay, Master." Lin Zhengtang was cleaning the table. Hearing Wang Shi's words, he put down what he was doing and replied.

Taking into account the convenience of entry and exit, Wang Shi bought a bicycle and put it in the store specifically for Lin Zhengtang to do business.

Wang Shi rode on his shoulder, causing passers-by to stop and watch.

Motorcycles, especially motorcycles like the Yangtze 750, are rarely privately owned except for police vehicles.

The passenger seats are made of leather and have black seats, which look much more upscale than the original ones used by the police.

"Who is this? So awesome." Some young people looked jealous.

"I know him. He is Wang Shi, the son-in-law of Director Zhao's family in our hutong. Even though he has no job, he opens a car repair shop on Chaoyangmen Street and earns hundreds or even thousands a month. Not to mention a shoulder strap, as long as

If someone is willing, it’s no problem to buy a Mercedes-Benz or BMW.”

Several young people looked at their worn-out 28-year-old shoulder bags with peeling paint, and sighed, "Let's go, there's no need to look at it."

"Didi!" When he arrived outside the CCB, Wang Shi turned off the engine and saw that the time was exactly 12 o'clock. Wang Shi honked the horn, locked the car, and walked in with biscuits in his hand.

"Come on, come on, everyone has a share." Wang Shi said, handing out the biscuits to Zhao Min's colleagues.

The last time Zhao Min went home during the Chinese New Year, several of Zhao Min's colleagues helped Zhao Min work overtime. Later, Zhao Min said that she wanted to return it. Thinking that Zhao Min was pregnant now, several colleagues did not want Zhao Min to return it.

However, Wang Shi did not let the other party suffer, and would bring some snacks over every now and then to share with everyone. Of course, this was because Zhao Min wanted to eat more and buy more.

Several female colleagues were familiar with Wang Shi and were not polite. Each of them took a few. The single ones began to eat them, while the married women put them in their pockets, presumably to take them home for their children.

Nowadays, living materials are scarce and people's life is still very difficult, but not everyone is as wealthy as Wang Shi.

…

As time went by, Zhao Min's belly became bigger and bigger. After more than eight months, Wang Shi simply asked Zhao Min to take leave and stay at home.

It was already September, and the weather was hot. Zhao Min was sitting on a chair with a big belly. Next to him was a floor-standing fan. The fan was made of all metal, even the blades, and it was blowing loudly.

At this time, Wang Shi's engine design drawings were also in the final stages.

evening.

"Mom, I'm going to Uncle Huang's house to discuss something with him." Wang Shi carried a bundle of drawings and went out. Before leaving, he confessed to his younger brothers and sisters who had already gone on summer vacation: "You two can't keep it at home.

I can't go, I'm going to Uncle Huang's house. If anything happens to your sister-in-law, ride a bicycle and come find me." It's been more than eight months, and the due date is very close. Now is an important moment. Maybe one day the little guy will get tired of staying in there.

When I come out, if my mother-in-law is the only one at home, I don’t know what I will do.

"Understood, we will keep it at home." said the third brother Wang Jiandang.

Wang Shi rode his shoulder bag to Huang Jianqiang's house.

Hearing the sound of the motorcycle, Huang Ziming walked out of the house and saw Wang Shi. He stared at the bag and almost drooled. "Brother Wang." The other party called out.

Wang Shi knew what the other party wanted to do, and threw the car keys over, "You can only go around this alley and don't run too far. I will need it at any time. You know, your sister-in-law is now due to give birth, and you don't know when."

Huang Ziming also knew it, and said with assurance: "I just walked around this alley to get my fill, and I didn't run far." After saying that, he put on his shoulder bag and stepped on it, beep... When he left the courtyard, the naughty children in the courtyard screamed excitedly.

He followed him out and pulled out a long tail in the alley.

"Why are you coming here if you don't stay at home at this time?" Huang Jianqiang was sitting at home reading a magazine. He rolled his eyes when he saw Wang Shi coming in, "When is the due date?"

"It's been more than ten days." Wang Shi put a bundle of drawings on the table, looked at the other person and said, "I designed an engine, and asked Uncle Huang to help find the experts in your unit to take a look..." Wang Shi explained his purpose.

came out.

Uncle Huang works in the Ministry of First Industry, which manages various large and small engine companies across the country. There are also some experts in this field in the unit. Wang Shi mainly wants to see if his drawing can pass the review.

"You work on engines?" Huang Jianqiang heard Wang Shi's words, put down the publication in his hand and looked at Wang Shi.

In Huang Jianqiang's eyes, Wang Shi is nothing more than a car repairman. Designing an engine is a high-level and delicate job, and it is not as simple as repairing a car.

Except for his apprentice, Wang Shi had never told anyone else about engine design. No wonder the other party had such a big reaction when he heard about it.

But little did he know that Wang Shi was a reborn person and had a bachelor's degree in automobiles in his previous life.

"It's random. Uncle Huang, please help me find experts in these fields in your unit. If it passes the review, I want to set up a factory to do it." Wang Shi said.

Why don't you go to heaven?

This was the first thing Huang Jianqiang wanted to tell Wang Shi after hearing it.