bonanza

Chapter 662 Almost Intact
"Study is a good thing!" Director Jiang nodded, "How about this, I will ask the secretary to send the recommendation letter tomorrow, so don't delay the registration!"

Yang Dongsheng didn't expect Director Jiang to agree so readily.

Director Jiang patted Yang Dongsheng on the shoulder, "Prepare well, EMBA students also have to take the National Unified Entrance Examination for Graduate Students!"

Yang Dongsheng was slightly taken aback, and looked at Director Jiang.

Director Jiang smiled at Yang Dongsheng. The news he just revealed was far more than just an EMBA. These represented the attitude of Shanghai.

Led by Yang Dongsheng, Director Jiang visited the plasma polishing equipment they are developing.

The so-called plasma polishing is to use an electric field to ionize inert gases such as argon into ions, and then bombard the surface of the lens to remove surface atoms to achieve polishing.

Through plasma polishing, the lens can be made to atomic precision.

Plasma polishing is only one of the steps in the manufacture of high-precision lenses. Before that, it has to go through a series of steps such as machine tool milling, small grinding head polishing, and magnetorheological polishing.

None of these steps can be saved. Although the precision of plasma polishing is high, the amount that can be removed each time is also small.

If you rely on plasma polishing, you can't make a single lens in 100 years.

Only when the precision of the previous step is as high as possible, the processing difficulty will be as small as possible when entering the next step.

"We used to only make steamed buns, but now we are forced to grow wheat, and even produce chemical fertilizers and pesticides!" Yang Dongsheng sighed.

"The overall industrial strength of our country is still too poor!" Director Jiang sighed, "I heard that you are still making gas turbines and aero engines?"

"Correct!"

"In the 90s, our country had already introduced a gas turbine technology from Ukraine. Is this duplication of construction?"

"Director Jiang should be talking about UGT-25000?" Yang Dongsheng smiled, "That's right! Gas turbines can be roughly divided into two different technical routes, one is a heavy-duty gas turbine developed following the traditional steam turbine concept, This kind of gas turbine is huge in size, weighs several hundred tons, is equipped with a combined cycle system, has a thermal efficiency of more than 50.00%, and a power of more than 30.00 horsepower. It is usually used in power plants; the other is mostly modified from aero-engines. The gas turbine does not have a combined cycle system, weighs only 25000 to [-] tons, has a thermal efficiency of only [-]%, and a power of less than [-] horsepower, but is small in size and light in weight, and is mostly used in ships. UGT-[-] is a typical marine gas turbine.”

"That's right..." Director Jiang nodded.

"And in terms of gas turbine technology, the gap between Ukraine and the United States is very large! Although UGT-25000 is comparable to General Electric's LM-2500 in terms of power and thermal efficiency, the length of LM-2500 is only 8 meters, and the length of UGT-25000 Reaching 16 meters, the weight is much larger! More importantly, LM-2500 has a double-rotor structure, and UGT-25000 has a three-rotor structure. The simpler the machine, the higher the reliability! UGT-25000 is heavy and complex in structure. There is no advantage in power and thermal efficiency, the two are not the same level of technology!"

A group of people entered Dongsheng Heavy Industry. These gas turbines and engines have been out for many years, and Dongsheng Heavy Industry is progressing very smoothly.

"Is it too complicated to do so many things at the same time?" Director Jiang couldn't help but feel a little worried.

"This is where General Electric is great! The LM-2500 gas turbine and the CFM-56 aero engine look very different, but they use the same core engine, which is derived from the TF-5 engine equipped on the C-39 transport aircraft Yes." Yang Dongsheng said.

After the visit, Yang Dongsheng returned to the company, only to see that the front of the office building was empty, and there was no one around here before.

"When did the people from Shizhai leave?" Yang Dongsheng asked.

"This morning!" Director Li put down his teacup, "I heard that Shanghai expressed dissatisfaction, and people from Guazhou took them all away!"

"It's a pity, I still want them to make trouble for a few more days!"

Yang Dongsheng casually picked up a chicken heart bottle filled with white powder from the table.

The bottle is filled with lithium hydroxide, which is an important raw material for making lithium batteries, and it is also a raw material for making lithium deuteride six.

During the Cold War, the two sides engaged in a nuclear arms race, and the Americans once stored 4.2 tons of lithium hydroxide.

Compared with expensive weapons-grade enriched uranium, lithium deuteride-[-] as a thermonuclear material is very easy to manufacture and relatively cheap.

Moreover, lithium deuteride-90.00 does not need to be used when the purity of uranium and plutonium reaches more than [-]%.

One of the important businesses of Yang Dongsheng's company is the manufacture of lithium batteries. No one doubts that there is such a thing on the table.

Almost half a month after Yang Dongsheng returned to Shanghai, Jason Bourne contacted him again.

"This is what you want!" Jason Bourne handed a piece of writing to Yang Dongsheng.

Yang Dongsheng glanced at it and saw that it started with "the first year of Weiqian", so he handed it over to Director Li's nephew for identification.

Picking up the second picture, the word "Xizhi" is clearly written at the beginning of this picture.

But there is a half-written character in the upper left corner, which looks like a "Shen" character.

"What's going on, why is it only half?" Yang Dongsheng was very dissatisfied.

Director Li's eldest nephew looked at it and said, "It doesn't matter, someone wrote it scribbled!"

"Scribbling? This is Wang Xizhi's handwriting. Someone dares to scribble. Who gave him the courage?"

"Who else? Qianlong!" Director Li's eldest nephew snorted dissatisfiedly, "Look, this "Picture of Autumn Blossoms in Magpie Blossoms" was destroyed even more ruthlessly. Word of mouth!"

"He dared to inscribe on Wang Xizhi's handwriting, who gave him the confidence?"

Jason Bourne walked aside with Yang Dongsheng, "I have one more thing to ask you this time! I have something, do you want to buy it?"

"what?"

"An aero engine - F-110! Almost intact!"

单说F-110航空发动机很多人可能不知道，但是说起F-16、F-15、F-14等战斗机的名字知道的人就多了，这些战斗机有一半使用的是F-110。

Yang Dongsheng knew about the F-110 because when he read the information not long ago, he saw that the F-110 uses the same core machine as the LM-2500 and CFM-56.

前世我们国家的运-20运输机使用了俄罗斯的D-30KP-2型航空发动机，歼-10、歼-11、歼-15、歼-16、歼-20等战斗机也使用了俄罗斯的AL-31航空发动机。

F-110 is an engine of the same level as AL-31, and its thrust, service life, and fuel efficiency are all better than AL-31.

But where did Jason Bourne get the F-110?This is an engine for fighter jets, which is different from the civilian CFM-56.

And Yang Dongsheng noticed that what Jason Bourne said was "almost intact".

(End of this chapter)