"Yang Group, come with me, the casting is back. Guaranteed to blow your mind. ”

Yang Hui sat in the office and didn't do anything today, just read there silently, and didn't go to the body project team, just to wait here for good news in several aspects. Although the process cycle of each component is different, the long cycle happens to start trial production in advance, so it is almost good or bad to come back today.

The first one to come back to report the good news was the centrifugal impeller that went to the trial production for the second time, and seeing Zhong Jianshe so happy, Yang Hui finally lowered his heart a little, at least one came back.

Putting down the book that he hadn't read for a long time, Yang Hui followed Zhong Jianshe and walked down, his steps were brisk and sensitive.

"Construction, look at your appearance, this test piece is very good, right?" Knowing that he would be able to see the impeller soon, Yang Hui still couldn't help but ask Zhong Jianshe first.

"Yang Group, it's hard to say to you, I can't describe my mood now, you'll know it later."

The excitement is indescribable, and this is the case for Zhong Jianshe now, this is the first product he designed that could be mass-produced, so he is very excited.

Since there is no way to describe it at this time, then bear with it again, and when you see it below, you will know, now Yang Hui, an old man with an extremely mature heart, is actually as excited as these young people, it seems that youth is contagious.

Came to the front of the box where the impeller was placed, Yang Hui was informed, and it was actually half a box, although it was separated by straw, but there were fifteen or sixteen in this box.

"So much? How many have you done? ”

Hearing that he was asking the question of quantity, Zhong Jianshe grinned and said, "Team Leader Yang, there are a total of seventeen finished impellers, a total of twenty, this time for various reasons, after heat treatment, shaping, anti-rust treatment and rough processing, there are seventeen left." ”

Obviously, the success rate of this time is quite high, in all aspects, the impeller is really more suitable for mass production, pick up an impeller up and down to observe, roughness this needless to say, castings don't think about any roughness, other aspects look good, after the follow-up processing of the impeller, it looks very good, sand holes, these are absolutely none, the shaft hole after the initial processing looks quite good, the finish these can not be seen, but the first glance is good, I can't see the internal problem of the casting, but there is a factory inspection form, and the qualified product is written on it, which means that there is no problem.

"How about these parts, or the senior engineer last time helped us to do it, he is also full of praise for the results this time, saying that this is the highest yield among the various test pieces he has made."

Can it not be high, this impeller is now simplified like this, if it is not high, there will be a problem.

Lower the impeller carefully and separate it with straw to avoid bumping with other impellers. nodded, then smiled and clapped slowly, "Yes, yes, the impeller this time is quite good, or is it a good design by you." ”

I moved my hands and feet, and saw that there was no transportation around here. From the gate of the research institute to the test center, it is said that the yuan is not far, but it is not close. Finally, the heart is horizontal.

"Let's go, there's no cart or anything like that around here, we're going to do manual labor." Saying that, I tried to see if the box was strong, and the result was of course very good, and the materials used to make things were very sufficient in these years.

Seeing that the team leader was about to throw off his arms and work, how dare Zhong Jianshe not move, he was busy with Yang Hui and Yang Hui lifting the box left and right and walking towards the test center, which attracted a lot of attention along the way, and the crab-like posture looked like an inexplicable domineering spirit in it.

On the way to the test center, from time to time someone came to help with the handle, so relying on manpower, I was stunned to carry a box of heavy castings to the test center.

Yang Hui and Zhong Jianjian, who were sweating profusely, looked at each other and smiled, and finally brought them over. This road relied on persistence, and in the cold winter of the military industrial enterprises that followed, it was only by relying on this persistence to get through.

patted the sturdy box, smiled and went to the test center to find someone, last time it was Section Chief Wu who brought him to meet Section Chief Li. This time, he and Zhong Jianjian came, and now it's time to find someone by himself.

"Who are you, who are you looking for?"

Section Chief Li is obviously not very familiar with Yang Hui, who has only met once, and he doesn't remember seeing Yang Hui again.

Now it's time for me to come to someone else's territory, so you should be careful and careful, although Section Chief Wu said that this Section Chief Li is easier to talk to.

"I was Yang Hui last time, and I did the combustion chamber test that time." If you want to do something, you have to show your identity first, which is the most reliable.

"Got it, let's come with Section Chief Wu! Is there a new part coming out this time? When it comes to the small combustion chamber, Section Chief Li can be regarded as remembering.

"Well, our impeller has been made, and we will send it here for testing."

Since he was here to submit for inspection, Section Chief Li picked up the record board on the table and went outside with Yang Hui to see the new parts.

Seeing that Yang Hui called someone who obviously looked like a person in charge, Zhong Jianshe hurriedly sat up from the box and patted his ass to open the box.

No, let's lift it inside! As he spoke, he put down the record board and lifted the box, but it was obvious that it was not lifted, and it felt that the box was still a little heavy.

"It's heavy, how many things are loaded?" After trying it, things are quite heavy, according to common sense, the aero engine cannot be too heavy, and the box is so heavy, it is a possibility, there are a lot of things in it.

"This thing, there are only a batch of impeller casting specimens."

Since Section Chief Li asked, Yang Hui answered truthfully that there was nothing to keep secret anyway.

But these words made this Section Chief Li wonder for a long time, when did the impeller sink so much? Still in a box?

Puzzled looking at Yang Hui and a young man today, the box was lifted inside, and at this time, Section Chief Li suddenly looked forward to it, what kind of impeller it was, so contrary to common sense. An engine component so heavy.

After putting down the box, a large number of scientific researchers were attracted like last time, and they all looked at this heavy big box.

"Come on, unbox."

The box had already been opened by Yang Hui and the others once, and it was easy to open the box now.

The neatly placed castings inside are really disappointing, I thought that such a big, heavy box could have a big guy coming, but I didn't expect it to be a bunch of small impellers in the number.

"Are you sure this is here to test, not the finished product you took?"

When Section Chief Li saw so many neatly stacked small impellers in the box, he felt that there were too many, obviously not like the test pieces used for testing, where were so many used for testing.

Take out an impeller and point to this impeller, "This is it, this time the test piece is designed to be very simple and easy to manufacture, so this time twenty has become a total of seventeen." ”

Hearing that this impeller is so simple, there is such a high success rate for the first time, this is considered to be the interest of Section Chief Li, such a simple design can meet the requirements of the design, turbojet engine for a good compression efficiency, which is not extremely complicated? Don't really see that the impeller is very simple and think that the impeller is simple, the difference between simplicity and simplicity is too great.

Pick up an impeller, pat the grass ash in the middle of the blade, and observe this impeller carefully, I feel that there is nothing special, the only thing to say about this impeller is that it is very simple.

"It's weird, you calculated that this can really work." This was asked.

"Section Chief Li, this calculation is also based on experience, and whether it can be done in the end depends on your test results." How can it be possible to calculate accurate values just by calculating them, such as impeller efficiency, which is calculated based on experience, but empirical formulas are often not reliable, and ultimately depend on test data.

"Okay, let's test it, I also want to see what kind of efficiency this impeller is, this very ordinary guy."

As he spoke, he counted the number of impellers and began to calculate how many impellers were needed for testing. It's not possible to put it all into testing, it's too wasteful.

"Construction, test the list of projects, and make a record for Section Chief Li." Hearing that Section Chief Li was about to start working, Yang Hui hurriedly asked Zhong Jianshe to take out the list.

"Alright, give it to me! Just come with me for an autograph. After looking at the testing items on the list, Section Chief Li took Yang Hui and Zhong Jianshe to the office.