Restarting life in Siheyuan

Chapter 84 New Process Application

My mother-in-law has to finish sweeping the streets before she can come back. She really can't hope for it. It seems that she has to ask her aunt, who is kind-hearted and has nothing to do at home, so she should be able to agree.

Looking outside the door, Silly Zhu dressed neatly and went out. Jia Zhang rolled his eyes and turned around.

"His wife, do you think Silly Zhu is looking for a wife? She's as groomed as a jackass, her hair is smooth and smooth."

"That's right. If I don't help him clean up for two days, just treat it as a favor, otherwise it won't be easy to talk to him again in the future."

"Silly wife, if Silly Zhu marries a mother-in-law, can he still help our family? With a wife in charge, can you still borrow money? Banggeng can still go rummaging for food?"

.........

"Hey, isn't this Sister Qin? She's going out so early in the morning."

Qin Huairu, who was preparing to go out early, happened to meet Xu Damao, who was about to go out.

"Oh, brother Damao, why are you going so early?"

Qin Huairu was not very enthusiastic. What happened last time made her very awkward. Although she had agreed to borrow some every month, she was really not enthusiastic in the public.

"Well, let's find something easy to talk about and deal with it. I'm too lazy to do it alone."

Xu Damao is very enthusiastic. He has been recuperating during this period. He was beaten badly last time. Although he did not suffer any injuries, he was unable to move for a long time. He was beaten by the villagers again. Now he has finally recovered. .

The two walked away chatting...

……

Motorcycle factory production workshop
Entering the workshop, you will be greeted by a large banner.

"Work hard and skillfully for a hundred days, and I will contribute to the National Day!"

The walls on both sides of the factory are also covered with safety production slogans.

“One more look, and you’re on the safe side; one more step of prevention, and you’ll have fewer accidents.”

"No matter how busy we are with production, we never forget safety. Human lives are at stake, and safety comes first."

There are dozens of them. It seems that factories of any era attach great importance to safety in production. This mechanical processing does not pay attention to safety. In mild cases, it will be disabled, and in severe cases, it will kill. Father Zhu is a living example. If others violate the rules, you will suffer. It is really a god. Bring disaster.

The workshop is a bit noisy, with clanging, clanging, and sizzling sounds. The sounds of various metals being hammered, polished, and drilled are mixed together. The noise pollution is still very serious. At this time, there is no concept of occupational health and safety, only the sound of a raging fire. production scene.

There is very little equipment, and most workers do manual labor. All positions are working with enthusiasm. There is no idle person in Nuoda's workshop, and everyone is sweating, hammering, grinding, drilling and cutting...

"Follow me. Master Xie's work station is in front. Don't look away. He will be lost in a while."

The workshop is too big and the layout is not neat, so you might get lost.

Section Chief Lu turned around and saw that Zhu Xuefeng was still observing the workers at work with great interest, so he quickly pulled him up and left.

……

Zhu Xuefeng looked at the drawings and then at Master Xie's work. There was nothing wrong with it. Master Xie was a seventh-level fitter and was responsible for processing the engine block and pistons.

Zhu Xuefeng shouted loudly.

"Master Xie, is there any problem with this processing?" Master Xie's voice was not soft.

"Little comrade, you'd better call your master over. I'll tell you, but you don't understand either."

Master Xie thought that the master had no time, so he got a young apprentice to fool him, and he was a little unhappy.

Section Chief Lu shouted with a smile.

"Old Xie, he was the one who drew this picture. It has nothing to do with the master."

Master Xie was surprised. He was now in trouble, but the drawings were quite well designed. All the marks were very clear and easy to understand, making it very easy to understand and process.

The trouble now is that the drawings are very demanding, and the matching tolerances of the cylinder and piston are beyond the capabilities of my own craftsmanship. It is estimated that even an eighth-level worker will not be able to do it.

Nowadays, the cylinder block and piston are first poured into a preliminary mold, and then poured, that is, cast. What is cast is a rough embryo, and the subsequent finishing depends entirely on the craftsmanship of the workers.

There was no normal communication in the workshop. Several people came to the door of the workshop with drawings and objects. After chatting for a while, Zhu Xuefeng understood that the precision he required was too high and could not be achieved by hand.

equipment?No, today's motorcycle cylinder blocks are all processed by hand, including the subsequent finishing, which is all done by hand.

Zhu Xuefeng looked at the engine drawings of the three-wheel engine again. Indeed, their accuracy requirements were more in line with the current capabilities. It was natural that his own would be a castle in the air.

It's too unreliable to rely entirely on manual work. Occasionally, it can reach the standard once, but the rest is too difficult. In order to miniaturize, reduce the size, and improve work efficiency, I do have a high accuracy, but this is the minimum requirement.

This hand rubbing method still has some limitations. The accuracy requirements for the cylinder and piston are inherently high. You need to have a negative tolerance for the cylinder and a positive tolerance for the piston. If both are qualified, it will not be installed in the end. If you want It's all the same, it's too difficult. After all, people are the most uncontrollable factor.

You cannot change the drawings. If the accuracy can be relaxed, the power of the engine will not meet the requirements, and naturally the final product will not meet the expectations.

Besides, the exterior dimensions have been decided, and the reserved space and structure of the car cannot be changed, so they are probably all finished.

Zhu Xuefeng decided to try another method of manufacturing, and Section Chief Lu also expressed his active cooperation. He asked for people and auxiliary materials, and he had to help Zhu Xuefeng get it done no matter what.

Zhu Xuefeng returned home first. He had to look for information on this matter. The idea was clear, and the process still needed to be pondered.

After checking information in the library all morning, I gained very little in this area. At most, there was only a basic description. I didn’t know the process at all, and I didn’t know it clearly yet.

Finally, by chance, I put aside various professional books and found relevant content in the thermal processing section of the journal "Machinist" from previous years.

Lin Na followed Zhu Xuefeng's request and dug out the thermal processing journals of "Machinist" for three consecutive years. Sure enough, she found relevant content about FAW and YTO engine casting.

According to the content of the journal, I found the 51th issue of "Machinist" from 11. It contains the experience of Jinhai Automobile Manufacturing and Parts Factory in producing the first car. It involves the relevant content of engine casting. It is very detailed and includes some parts. The pictures and parameters really have no meaning of technical confidentiality at all.

As if he had found a treasure, Zhu Xuefeng greedily absorbed the experience and lessons. After more than three hours, he finally finished reading. Zhu Xuefeng understood that there was still a big gap between what he needed and that these should be the current peak casting technologies in the country.

There was no relevant content in Lin Na's German book, so she could only look at it herself. Zhu Xuefeng quietly began to recall and record.

You need to use some fine sand with a uniform texture, and you also need to find strong resin glue...

Slowly my thoughts became clear, I picked up a pen and recorded it step by step. I will go to the factory tomorrow to see if the specific situation can be realized.

The guys at the motorcycle factory were still very good at everything, and there were some difficulties, but they were basically able to make do. Zhu Xuefeng spent six days and reworked the work once. With the help of Section Chief Lu, Master Xie also kept pressing Zhu Xuefeng's instructions. I changed the meaning and finally got it done.

(End of this chapter)