Chapter 108: The quality is not enough to make up the quantity
In China, no unit has developed automatic transmissions, but abroad, this technology has actually become widespread. Western tanks almost all use automatic transmissions. The manufacturing technology of automatic transmissions has been reported in various academic magazines.
, you can see it often.
There is a lubricating oil circuit inside the gearbox casing. They don't even know such a simple common sense.
If it is a transmission with a fixed shaft, it is enough to directly use splash lubrication. When the gear moves, the oil can be thrown up by the teeth, so that splash lubrication is performed. However, this kind of planetary transmission is definitely not possible. The middle is
There are several planetary gears outside the sun gear. Some of the planetary gears must be on top and cannot be reached by splash lubrication. Therefore, forced lubrication is necessary. This oil circuit is inside the transmission case. This is inevitable.
, otherwise how to arrange it?
However, this will greatly increase the difficulty of casting the transmission case. In fact, it is not difficult to add a pipe in the middle during the casting process. The engine cylinder has a water jacket inside, but...
The casing of the transmission is already very thin. If it were to have an oil circuit inside, and if it had to have such a complicated oil circuit, it would be beyond the current technical level.
"It's not easy." The technicians on site, some of whom are proficient in casting, said worriedly: "When we pour this kind of additional pipe, it will cause the pouring time to be greatly increased. In this way,
The high-temperature liquid metal cools and solidifies very quickly. The temperature has been significantly reduced during flow, resulting in insufficient pouring pressure for the subsequent parts. Moreover, the cooling speed is faster at the parts that are in contact with the mold surface. Therefore,
The poured oil line groove is probably loose, and the density cannot meet the needs. When the final die-casting is completed, the oil line may collapse."
Regardless of their basic knowledge reserves, at least they still have a few brushes and can clearly analyze the difficulties of casting. However, Qin Zhenhua did not answer these questions at all.
"I don't understand this aspect." Qin Zhenhua answered simply: "Now, I have found your problem of surveying and mapping imitation. It is up to you to solve it."
What, haven't you always been almighty? Haven't you always boasted that you can do anything? Now, when you are needed for help, why do you shrink back?
When Song Weize heard Qin Zhenhua say this, his face showed displeasure. Then, Qin Zhenhua became even more confident: "Director Song, the fault has been found. Everything else is fine. As long as this casting is done well, our surveying and mapping imitation will be done."
If you can achieve complete success, I would like to present my gift to my superiors. Well, it’s getting dark, so I’ll leave first.”
So, in the eyes of everyone, Qin Zhenhua left swaggeringly.
What did he do here? He didn't do anything at all. He just pretended to show everyone how to work. He was just an apprentice, instructing us to work!
Yes, the problem has been found, but what if we only found the problem? Solving the problem is more important. What is in front of everyone is simply a huge mountain!
Back then, when the 59 tank was first put into production, our country had the world's advanced level. However, in the past few decades, the world's industrial technology has developed rapidly. The industrial technology used by others is something that our country does not possess. This kind of shell
The casting may be very simple for others, but it is very difficult for oneself.
what to do?
"Okay, at least we know what the problem is." Song Weize said: "Time is running out, let's make the mold immediately and start casting. The quality is not enough. We scrape together the quantity and cast dozens of them. I don't believe there is any usable one.
"
Song Weize could only continue to cheer everyone up.
"Director Song, why are we so strict on this construction schedule?" At this moment, Du Youwen said: "Is there anything else involved?"
"No, don't think too much. Let's do it quickly. We don't have much time." Song Weize's face darkened.
Did this Du Youwen hear some gossip? Since Qin Zhenhua knows about it, then maybe this Du Youwen also knows about it. When the time comes, they all come to me to ask for a quota. How should I deal with it?
No matter what, he will dump everything on Director Zhou when the time comes, as he promised.
Just as I was thinking about it, Director Zhou, who had finished the work, came over to check again. He was very happy to hear that the problem was found and encouraged his morale. As for the problems encountered, he also confirmed Song Weize's plan and built a few more.
, there will always be a successful one!
"Everyone, work harder." Zhou Xuejun said: "When you encounter difficulties, you must think more. When we do research and development here, we not only need to do it with our hands, but more importantly, we need to use our brains more."
Humph, isn’t this sentence a replica of Qin Zhenhua’s sentence? Use your brain more. Without other people’s craftsmanship, what’s the use of using our own brains?
Suddenly, Du Youwen thought of something. This guy Qin Zhenhua is really hateful and not gregarious at all. What's so great about him is that he just read more information in the factory's information room.
Wait, information?
Du Youwen suddenly thought of something. Yes, what does Qin Zhenhua know? How could he know at once that there was a problem with the casting of the shell? Didn't he just read a lot of information in the data room?
Now, what we are encountering is the problem of casting technology. If you can read a book, can’t I?
Besides, think about Qin Zhenhua’s disdainful expression at that time, and his words were so clear. Didn’t any of you look at the information ordered in the information room of our factory?
In the data room, maybe there is a corresponding technology? Foreigners like to do research. It is said that those experts have a requirement for the number of papers published every year.
Thinking of this, before Zhou Xuejun left, Du Youwen spoke: "Report, I have an idea."
"Hey, do you have an idea?" Zhou Xuejun looked obviously surprised.
"Yes, we have copied all other parts now, only the shell casting is left. Therefore, we can't use too many manpower now. We might as well divide it into two groups. One group starts making molds and casting, and the other group starts mold casting.
A group of people may find something useful if they go to the reference room to check the information. I request you to go to the reference room!"
Even checking information overnight is better than tinkering with molds here, and Du Youwen really doesn't have that skill.