In China, no unit has developed an automatic transmission, but in foreign countries, this technology has actually been rotten on the street, Western tanks, almost all of them are automatic transmissions, automatic transmission manufacturing technology, in various academic magazines, often seen.

The gearbox shell has a lubricating oil circuit inside, such a simple common sense, they don't even know.

If it is a fixed shaft transmission, it is enough to directly use splash lubrication, when the gear moves, the oil can be thrown up by the teeth, so that the splash lubrication is carried out, but this planetary transmission is absolutely not good, the middle is the sun gear, there are several planetary gears outside, some of which are planetary gears, must be on the top, and the splash lubrication is not enough, so it is necessary to force lubrication, this oil circuit, it is done inside the transmission shell, so it is inevitable, otherwise how to arrange?

However, in this way, it will lead to a great increase in the difficulty of transmission shell casting, in fact, if in the process of casting, add a pipe in the middle, it is not difficult, the engine block, there is a water jacket inside, however, the shell of the transmission is very thin, if it is made into an oil circuit inside, and it is necessary to do such a complex oil circuit, it will be beyond the technical level.

"It's not funny." The on-site technicians, some of whom are proficient in casting, said worriedly on the side: "When we are pouring, if we add this additional pipe, it will lead to a great increase in the pouring time, so that the cooling and solidification speed of the high-temperature liquid metal is very fast, and the temperature has been significantly reduced when flowing, resulting in the back part can not get enough pouring pressure, and in the part that is in contact with the surface of the mold, the cooling speed is faster, so it is estimated that there will be a loose phenomenon at the oil groove of this pouring. The density is difficult to meet the needs, and when the final die-casting is formed, the oil circuit may collapse. ”

No matter what the basic knowledge reserve is, at least, they still have a few brushes, and they can clearly analyze this difficulty of casting, and Qin Zhenhua did not answer these questions at all.

"I don't understand that." Qin Zhenhua replied very simply: "Now, I have found this problem of your surveying and mapping imitation, and it is up to you to solve it." ”

What, haven't you always been omnipotent? Haven't you always boasted that you can do anything? Now, when you need your help, how do you shrink back?

When Song Weize heard Qin Zhenhua say this, his face was displeased, and then, Qin Zhenhua was even more confident: "Director Song, the fault has been found, the rest is fine, as long as this casting is done well, our surveying and mapping imitation will be a complete success, and I will give a gift to my superiors, that, it's going to be dark, I'll go first." ”

So, in the eyes of everyone, Qin Zhenhua swaggered away.

What did he do here? He didn't do anything at all, he just pretended to be there, instructed everyone to work, he was an apprentice, and he commanded us people to work!

That's right, the problem is found, but what if you only find the problem, it is more important to solve the problem, what is in front of you is a big mountain!

At that time, when the 59 tank was just put into production, it had the world's advanced level, but in the past few decades, the world's industrial technology has developed rapidly, and the industrial technology used by people is not available to them.

What to do?

"Okay, at least we know what the problem is." Song Weize said: "Time is running out, let's make molds immediately and start casting, the quality is not enough, let's make up the number, cast dozens of them, I don't believe that there is no use in it." ”

Song Weize can only continue to cheer up the big guys.

"Director Song, why are we so strict with this schedule card?" At this moment, Du Youwen spoke: "Is there anything else going on here?" ”

"No, don't think nonsense, let's do it quickly, we don't have much time." Song Weize's face darkened.

This Du Youwen, did you hear any gossip? Since Qin Zhenhua can know, then, this Du Youwen may also know, when the time comes, they will all come to him to ask for a quota, what should he do?

Whatever, anyway, when the time comes, he will throw everything on Director Zhou, that's what he promised.

Just thinking about it, after dealing with the work, Director Zhou, came to check again, heard that the problem was found, very happy, encouraged morale, as for the problems encountered, but also affirmed Song Weize's plan, build a few more, there will always be a successful one!

"Everyone's working hard." Zhou Xuejun said: "When encountering difficulties, we must think more, we are engaged in research and development here, not only to do it, but more importantly, to use more brains." ”

Hmph, isn't this sentence a copy of Qin Zhenhua's sentence? Use your brain? Without people's craftsmanship, let's use our own brains, what's the use?

Suddenly, Du Youwen thought of something, Qin Zhenhua, this guy is really too hateful, not social at all, what is he good about, isn't it just in the data room of the factory, and he has read some more information.

Wait, the information?

Du Youwen suddenly thought of something, yes, Qin Zhenhua What does he know, how can he know at once that there is a problem with the casting of his own shell? Didn't he just read a lot of information in the reference room?

Now, we have a problem with the casting process, you can read books, don't I know?

Besides, thinking about Qin Zhenhua's disdainful expression at that time, the words were so clear, didn't any of you open the information ordered in the data room of our factory?

In the data room, maybe there is a corresponding process? Foreigners like to do research, and 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." ”

"Huh, this is an idea?" Zhou Xuejun was obviously surprised.

"Yes, we now have other parts that have been imitated, and the casting of the shell is left, so we can't use too much manpower now, we might as well divide it into two groups, one group of people will start to make molds for casting, and the other group of people, go to the data room to check the information, maybe there will be a harvest, I ask to go to the data room!"

Even if you check the information overnight, it's better than tinkering with molds here, and Du Youwen really doesn't have that kind of craftsmanship.