Chapter 950

“These are old and difficult problems in the domestic aviation manufacturing industry, and they have not been effectively resolved.” Li Mingshan sighed.

The engine is a big deal to everyone.

It’s not that the national defense science and technology workers don’t work hard, everyone forgets to sleep and eat, doesn’t ask for personal honor, or even personal gains and losses. After decades of work, they haven’t been resolved.

There is no shortcut to technological development.

“Aren’t you going to export Super-7B?” Long Yaohua was worried about this. “The Air Force has no equipment, and now it seems that solving the engine problem cannot be completed in a short time.”

Now just ask it directly.

“We considered this issue when we designed the dual-engine Super-7B before. Using the RD-33 engine, as an export model, the fire control radar uses a common radar, so the detection range and locking range will be much less.” Xie Kai said.

There is no way to hide this.

Single-shot Super-7A does not have much combat effectiveness at all.

Long Yaohua’s face suddenly changed, “What else are you not going to sell?”

When you come up with advanced things, you don’t have to consider the domestic air force to use them first.

“Chief, we will not sell things that endanger national defense security.” Xie Kai said with a smile.

He knew that Long Yaohua was on fire right now.

“Don’t give me hippie smiles here, Zheng Yucheng, Wang Guilin, is this what you mean?” Long Yaohua directly named the two who had been silent.

The two Zheng Yucheng were incomparably wronged. The fighter plane is no longer what they said when they first took over the J-9 project.

Originally, it was said that only one light fighter plane that meets international needs was built. Who knows how to build it, and it has become what it is now.

A group of people stood outside the workshop like this, Long Yaohua’s face was pale, and he didn’t get angry. The 404 person is really swollen now, and he can’t beat him without beating.

“Director, this is really not our intention. Super-7B was originally just an upgraded version of Super-7A. It was divided into two projects in order to prevent those engines from smashing into hands. There is not much aerodynamic layout or anything. The aerodynamic shape of the Super-7B has just completed the wind tunnel test…” Xie Kai can only helplessly explain, “If the Air Force is equipped with such a Super-7B, unless we don’t sell the Super-7A, the performance of the fighter jet will follow Combat capabilities can be evaluated.”

Originally, a project is divided into two. If you want to not leak technical secrets, unless you don’t sell one.

Not for sale?

Can the Air Force’s limited annual funding support it?

The answer is obvious.



Long Yaohua became angry for a while and couldn’t refute it.

“Director, the current situation is that our technical team needs projects to exercise and accumulate experience. At the same time, we must also improve the level of supporting facilities in the process, otherwise we will only be limited to this place in the end. Exporting, this is also helpless. This matter. The country adopts a defensive strategy, and the annual military expenditure is continuously reduced. We can only seek funding from the outside.” Wang Guilin spoke now.

In his tone, he was full of helplessness.

He likes money, but he doesn’t like selling good things.

Without these advanced equipment in the country, 404 would not be what it is today.

The export of light weapons, these things, no matter how large they are, the amount of funds that can be brought is limited.

Just like the high-precision sniper rifles produced by the 404’s firearm design, the price is not cheap. So far, the troops have not purchased any of them because they are too expensive.

A sniper rifle costs 100,000 yuan, while the ordinary 79 sniper and 85 sniper only cost two to three thousand yuan each.

As leaders in charge of the logistics work of the army, it is conceivable how to choose when funds are scarce.

Dozens of snipers holding sniper rifles with less precision, against a sniper holding a high-precision sniper rifle, who can win?(Read more @ wuxiax.com)

The idea of ​​being large and powerful still affects army building, even if it has been disarmed by one million, it has even been completed.

“Okay, okay, let’s get to know the specific problems of aero engines. Then we will have a meeting to discuss how to solve these problems quickly and effectively.” Seeing the depression of the atmosphere, Li Mingshan hurriedly finished the game.

“Yes, chief, let’s take a look at our power plant. Since we took over, we have continued to invest and update the entire plant’s technical equipment, especially high-end processing equipment such as CNC machine tools and vacuum furnaces for powder metallurgy. The best in the country.” Xie Kai also cheeked, and took the initiative to take the leader to the workshop to see the new equipment.

Like a child showing off to his parents.

With the steps, Long Yaohua no longer stalemate, and just walked into the workshop with Xie Kai like this.

Dongfeng Power Plant was originally just an ordinary aero engine production plant. The main engine model produced was turbojet. Just like the 132 plant as the backup plant of Shenfei, this plant was originally a backup of the 606 aircraft engine, mainly for 132 Factory supporting.

Long Yaohua and others are very clear about the original equipment.

Once again, I entered this dilapidated factory and found that it seemed to be in the wrong place.

The plant is still the original plant, but many of the equipment inside has been replaced with brand new ones.

Especially in the foundry that was originally used for melting and recasting, there is almost no such thing as the previous scene of boiling hot when you arrive at the door and you don’t want to go in.

Some white furnaces with a diameter of three or four meters are neatly arranged in the workshop, and each furnace is surrounded by a steel ladder to the top.

“Chief, this is our country’s most advanced vacuum furnace, used for powder metallurgy sintering…” Liao Dongfeng was very ready to come, and when he entered the workshop, he hurriedly introduced the equipment to the head.

“The most advanced in China? Do we produce it ourselves?” Long Yaohua, as the head of the National Defense Science and Technology Commission, naturally understands what powder metallurgy means to the entire military system.

Powder metallurgy, which is an emerging technology, was originally developed for the special materials required for fighter engines.

Metals such as tungsten, molybdenum and nickel have very high melting points. It is almost impossible to melt and cast these high melting point metal materials like ordinary steel smelting. There are not many research units in the world that can melt metals with a melting point of more than 3000 degrees. material.

Only high temperature and high pressure methods can be used to solidify these materials together.

The overall turbine discs, blades, etc. in the turbofan engine are made of powder metallurgy, which not only has high material strength, but also saves raw materials and processing costs.

There are few parts that can be processed on an aero engine.

“No, the most advanced one was brought back from the Soviet Union.” Xie Kai didn’t say much.

With only one sentence, Long Yaohua knew it.

Lao Fang, Zheng Quan, and the others have been engaged in all kinds of urgently needed equipment from the Soviet Union.

Of course, weapons and equipment and related things are not that easy, but there is no problem in getting some basic ancillary equipment.

In the entire workshop, most of the small stoves are made in China, and the ones with the highest technical content are from the Soviet Union.

“This thing is not complicated, but if you want to increase the temperature in the furnace and maintain it, it becomes difficult, especially the pure tungsten dry pot inside. That stuff is worth millions in one bite!” Liao Dongfeng sighed.

It is a pity that domestic production is not available.

In the powder metallurgy workshop, Long Yaohua and others did not stay too much time. From the powder metallurgy raw material workshop to the mechanical processing workshop behind, all this made the big guys’ eyes bright.

Especially in the precision machining workshop, Long Yaohua and the others have seen more than 20 CNC machining centers!

That’s right, more than twenty sets.

All are machining centers, not basic CNC machine tools such as CNC lathes.

“domestic?”

Now that Long Yaohua saw the equipment, he first asked if it was made in China.

He kept asking, but no one laughed at him.

Domestic production means that it can be widely promoted in the country and can be used by all units.

“The three-axis is, but the accuracy is not good, and the processing efficiency is low. We use it for rough machining. The only ones that are really used for finishing are the two 4-axis in the next workshop. Chief, do you want to go in for a look? You can go static, change clothes…” Liao Dongfeng showed his face.

This thing is available nationwide, except for 404, only Dongfeng Power Plant has it.

imported!

Very strong technical performance!

“What did you do?” Long Yaohua shook his head.

The four-axis system, the three-machine department and the five-machine department attach great importance to it, and even the state has included CNC technology as a key technology of 863. Even if the 404 Hongqi Machinery Factory has already produced a four-axis system, the CNC machine tool can be equipped with a CNC system from time to time. solved.

Xie Kai nodded, wondering what Long Yaohua wanted to say.

At this moment, he was also worried that Long Yaohua would continue to settle accounts with him.

“There will be opportunities like this in the future, so we can do more. There are a lot of units in our country that need this stuff.” Long Yaohua said.

Xie Kai nodded. If you can get it, you must get it. I don’t know what happened in Singapore. I went to sell oil and didn’t have time to talk to the people in Muye.

Gao Gang Zhengsan had already negotiated to bring a bunch of technicians to China to build a factory, and he didn’t know if the goods were really planned like this.

There is no bottom line about this, and Xie Kai can’t come up with it.

For these CNC machine tools, the above is very clear that all the things in the Batumi embargo list that can be obtained in the country are through special channels.

Later, I saw the assembly workshop. The working environment inside is no longer the original feeling of disorganization. Each job position has dedicated various tool cabinets, material cabinets, parts, and tools are placed in an orderly manner. , Watching Long Yaohua and the others were so relieved, nodding their heads involuntarily, and they didn’t know when their smiles appeared on their faces.

Even the best to see the turbofan-6 experimental prototype, which is still in the test workshop with white flames and roaring noises, is not as dissatisfied as before.

“Chief, everything is ready now, before the wind. This time I go back, I will go to Minister Shen and ask him to help in the research work…” Xie Kai was in a good mood after they inspected Long Yaohua. At that time, a request was made.

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