Chapter 83 Application of new technology
My mother-in-law has to sweep the streets before she can come back. She really can’t expect her. It seems that she has to ask her aunt. She 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's triangle eyes rolled and turned around.
"His wife, do you think Shazhu is looking for a wife? She's as groomed as a jackass, her hair is smooth and smooth."
"Maybe so, this won't help. He washed it for two days, just treat it as a favor, otherwise it will be difficult to say anything again in the future."
"Silly wife, if Silly Zhu marries a mother-in-law, can he still help our family? I have a wife to take care of it. Wait, can you still borrow money? Banggeng can still go get some 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 last time. The injury was not serious. Although there were no injuries, he was unable to move for a long time. Only then was he beaten by the villagers. Now he has finally recovered.
The two walked away chatting...
...
Motorcycle factory production workshop
Entering the workshop, there was a big banner in front of them.
“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 slogans on production safety.
“Take one more look, and you will be safe; take one more precaution, and you will have fewer accidents.”
"No matter how busy you are with production, never forget safety. Human life is at stake, and safety comes first."
There are dozens of them. It seems that factories of any era attach great importance to safety production. This mechanical processing does not pay attention to safety, which is the least. Disabled, or even killed, Mr. Zhu is a living example. Others violate the rules and he suffers. It is really a disaster from heaven.
The workshop is a bit noisy, with clanging, clanging, sizzling, and the sounds of various metals being knocked, polished, and drilled together. This noise pollution is still very serious, and there is no occupational health and safety at this time. concept, only the scene of production in full swing.
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. They are all sweating, hammering, grinding, drilling and cutting... ….
“Follow me, Master Xie’s work station is in front. Don’t look, he will be lost after a while.”
The workshop is too big and the arrangement is not neat. Lost.
Search Lu turned around and saw Zhu Xuefeng still observing the workers at work with great interest, so he quickly pulled him up and left.
......
Zhu Xuefeng looked at the drawings and Master Xie's work. There was no problem. 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 to come and tell you, you don’t understand either.”
Master Xie thought he was not free, so he A young apprentice came to fool me, and I was a little unhappy.
Section Chief Lu shouted with a smile.
"Old Xie, this picture was drawn by him, it has nothing to do with the master."
Master Xie was surprised. He is in trouble now, but this drawing design It is still quite high-quality, all the signs are very clear and easy to understand, and it is very convenient 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 for him to have some castles 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, the accuracy is indeed a bit high, but this is all At the very least, I asked for it.
This hand rubbing method still has some limitations. The accuracy requirements for the cylinder and piston are inherently high. You need to set a negative tolerance for the cylinder and a positive tolerance for the piston. If both are qualified, the final result will be It’s too difficult to pretend to be the same and want to be the same. 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 determined, and the reserved space and structure of the car cannot be changed. It is estimated that they are all finished.
Choose another way to make it. Zhu Xuefeng decided to try it. Section Chief Lu also expressed his active cooperation. He asked for people and auxiliary materials. 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.
I searched for information in the library all morning, and the gains in this area were very small. At most, there was only a basic description. I didn’t know the process at all, and I didn’t know it clearly yet.
In the end, it was by chance that 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 11th issue of "Machinist" from 1951. It contains the experience of Jinhai Automobile Manufacturing Plant in producing the first car, and it all involves the relevant content of engine casting. It is very It's detailed and includes some pictures and parameters. It really has no intention of keeping the technology confidential 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 is no relevant content in Lin Na's German book, so she can 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. Let’s see if it can be achieved based on the specific situation.
The guys at the motorcycle factory were still very good at everything. 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 I also kept making modifications according to Zhu Xuefeng's wishes, and finally got it done.
(End of this chapter)