Rebirth of Military Workers

Chapter 760

“Pressure 40%! Pressurize and close the mold!”

Originally, the work of a large press did not require such a command. For the first test, the use of abrasive tools to suppress the overall turbine disk was related to the success or failure of the large press, so I had to be so careful.

“Om~”

The working sound of the hydraulic motor is louder. The nickel-based superalloy blank in the middle of the mold, under the condition that the pressure provided by the large press continues to rise, stretches around like a dough.

A puff of white smoke spreads along the edge of the mold to the surroundings. This is when the high temperature on the surface of the blank touches the mold, the high temperature meets cold and the air condenses…

While extending, the dark red iron filings fell off towards the surroundings.

The original hard-to-machine nickel-based superalloy blanks tens of centimeters thick, under the 45,000-ton large press, could not prevent the large press from closing the upper and lower molds, and there was even no pause in the middle.

“Pressure 80%, keep the pressure!”

The pressure rises, the situation in the closed mold is not visible at all, but there is no material extending to the middle gap of the mold because it cannot withstand the pressure.

“How is it!” Zheng Yucheng was as anxious as an ant on a hot pot.

As long as this turbine disc is successfully suppressed and meets the requirements, the turbofan eight engine will progress quickly.

“Wait, it’s useless to be anxious. Seeing this thing is not moving, the material structure in the mold can change a lot.” Shen Hong was also anxious, but patiently explained to Zheng Yucheng.

Xie Kai was a little curious as he listened, “Minister, logically, with such a large pressure, it is possible to refine the grain structure during the pressing process without holding the pressure?”

“Don’t you notice that the diameter of this blank is a bit big?” Chen Mingshan asked Xie Kai.

Xie Kai found out a long time ago.

Although the diameter of the aircraft engine is not small, and the turbine disc inside is not small, the blank is really too big. Logically, it should be a cylinder with a small diameter. The pressure is different and the material is not so tightly pressed together.

“The test machine. As long as it succeeds, the trial production starts and the trial production process is also constantly adjusted. Until the trial production ends and the design requirements are determined to be met, the smaller blanks will be directly pressed without holding pressure. “Chen Mingshan explained.

In order to ensure that the machine does not have a problem, they do not want to waste any piece of material.

If the pressing is unsuccessful, there will be problems with the machine, and the material blanks cannot be used either.

Nickel-based superalloys are extremely expensive in terms of raw materials and preparation costs.

The minimum imported one kilogram is six to seven hundred. People don’t want to buy as much as you want. The domestic ones are only at the cost price, and they are all 480 per kilogram.

Such a rough piece is hundreds of kilograms!

“opened!”

There was another sound of a hydraulic motor, and the closed mold rose slowly, and at the same time it was raised, there was another burst of smoke.

The red color of the blank inside the mold is slightly darker.

“Success?” Zheng Yucheng asked excitedly.

“Don’t worry, wait to take it out and have a look.” Shen Hong was equally excited, but depressed.

Without seeing the finished product after suppression, who can guarantee success?

The huge steel tongs of the crane moved over, slowly clamping out the slightly bleak red blank in the mold, and dropped it to the side.

A group of people excitedly rushed towards the mold that made the air in the entire workshop dry and hot, and radiated high temperatures around it.

In fact, it is still a plate, except that there are raised steps on both sides of the middle, and there is a big round hole in the middle.

A group of technicians gathered around, keeping records of the red blanks, and finally reported the data to Chu Guorong.

Chu Guorong looked at the data, compared the parts blanks, and announced to everyone, “According to the current data, trial production can be carried out. The results of physical and chemical analysis of the internal grain structure will take a few days to come out.”(Read more @ wuxiax.com)

Zheng Yucheng didn’t care about this, but just asked, “Has the big press succeeded?”

“Success!” Chu Guorong smiled and told him affirmatively.

“Success…”

There was a sudden burst of enthusiastic cheers throughout the workshop.

After working hard for so long, I finally succeeded.

“Good! Good! Good!” Minister Shen Hong excitedly said three good times, but said nothing else.

“The wheel of history always keeps rotating forward. Now, it has finally accelerated!” Xie Kai was equally excited. In order to cast this large press, he risked his life to direct the main beam in a high temperature environment. casting……

Now, finally see the results.

The lifespan of the Yunshi will be extended several times; the heart disease problem in the aviation industry will be effectively solved; and even the power system of large naval warships can be improved…

“The success of the large press test machine represents that our technology in this area is mature… The results are gratifying, and I would like to extend my warm congratulations to everyone!” At the celebration party after the test production of the large press machine, Minister Shen Hong personally Host.

“Wow…” There was warm applause.

“I’m probably going to talk about the next thing soon.” Xie Kai sighed.

It doesn’t make people happy for a while.

“Achievements are all from the past. We should base ourselves on the present and look to the future. Comrades, our technology is developing, and foreign technology is also developing, even because we have more experience, more funds, and more development. Hurry…” Shen Hong stopped the applause. “At present, there is a 30,000-ton die forging machine in Southwest Aluminum, plus this 45,000-ton die forging machine, and there are only two. Compared with the manufacturing power, both in quantity and The quality is not a little bit worse,…”

How did the celebration party ended, Xie Kai didn’t know.

Anyway, everyone’s happiness was gone.

He thought there was nothing wrong with himself, but instead informed him to go to the meeting room of the Xinyue Factory for a meeting.

When I went to the conference room, they were all big men, but there was no leader of the Xinyue factory, and the factory director Tang Zhenhua was not present.

Big bosses like Shen Hong, Long Yaohua, Li Mingshan, and Chu Guorong are all in the factory, and Xie Kai keeps guessing about what meetings will be held. You never want them to undertake other projects, right?

“Everyone is here, let’s go directly to the topic.” Shen Hong, who presided over the meeting, said to Chen Mingshan next to him.

Chen Mingshan nodded, his face became serious, “As for the die forging hydraulic press, we now have a unit of more than 40,000 tons; but in the hydraulic press, there is a big gap with the international market. This cannot be solved in a short time. Talking about the situation of free forging presses today, many heavy parts are not suitable for forging by die forging machines, and it is not cost-effective to make molds for one or two parts…”

Xie Kai frowned and looked at Wang Guilin and Zheng Yucheng, and saw that they were also frowning, apparently unaware of it before.

This is boring.

Can’t let them continue to invest money in free forging, right?

“At present, domestic free forging hydraulic presses with a capacity of more than 10,000 tons, Yizhong and Shanghai Heavy Industries each have a 12,000-ton free forging hydraulic press, which are all domestically designed and built. Due to the original domestic technical foundation and manufacturing conditions, they have now entered the end of their life. The rate is getting higher and higher, which seriously affects production… The double-weight 10,000-ton free forging hydraulic press was originally produced in the Czech Republic. The second-hand equipment sold to us by the Soviet Union for some time is now almost unusable unless it is overhauled. Even if it is overhauled, Not to mention the high cost, it is equivalent to remanufacturing, or even higher cost, and the technology is still backward…”

Zheng Yucheng wanted to answer, but Wang Guilin stopped him.

Shen Hong looked at Xie Kai, Xie Kai pretended not to understand what he meant, and cast his gaze elsewhere.

Obviously when 404 is taken advantage of.

Zheng Yucheng and the others wanted to embezzle the funds for the 65,000-ton large-scale press project, and they were not planning to do it anymore.

It’s okay now. The 45,000-ton press has just ended, so they will not only continue to engage in 65,000-ton, but also free forging. The thing is not millions, but tens of millions can be done.

Free forging is different from die forging, and the forging pressure provided is also different. The only thing in common is one word-expensive!

Chu Guorong and others looked at Zheng Yucheng and Xie Kai couldn’t help but get a little angry.

Whose idea is it?

No wonder Zheng Yucheng and Wang Guilin are hiding from Minister Shen Hong.

I immediately stood up and said, “Leaders, the 10,000-ton free forging hydraulic press is indeed very important, especially for the forging of heavy parts. We also support it. Other units want to do it. We also support it, but our 404 is not the Ministry of Finance. …”

Zheng Yucheng can’t talk to Wang Guilin, but Xie Kai is easy to talk to.

There were already many projects, and the pressure on funds was increasing, so they returned the projects to them.

“I just hope to work together… Don’t you plan to build a large forging base in Jiayuguan? Just having a die forging machine is not enough…” Chu Guorong smiled embarrassedly.

“Union? Do we pay for other units to provide technology?” Xie Kai’s words were not at all polite. “Mr. Chu, you don’t know how many gold projects we have!”

Zheng Yucheng said this to Long Yaohua and Li Mingshan.

They didn’t help to block this kind of thing.

Li Mingshan and Long Yaohua looked at each other helplessly. Can Xie Kai’s complaint not be clear to them?

“We need the die forging hydraulic press, we do it ourselves! We have to continue to produce 65,000 tons, that is what we need, we invest money, no comment! But the hydraulic press and the free forging hydraulic press let us come, our 404 unit , Can’t support it!” Xie Kai’s words were hard to hear, “We are not a small treasury of the Ministry of Industry. Let us do whatever projects we want. Even the military leaders did not say that we should stop all countries from doing it for the time being. Pick up all of the items…”

Shen Hong looked at Xie Kai, a wry smile appeared at the corner of his mouth.

He knew that he would be regarded as a bad person.

“Chief, if we have to accept these projects, we can only embezzle funds from other projects… When our funds are not enough to support, 404 is just like before, we should disband…” Zheng Yucheng also stood up. .

When it’s time to refuse, you must refuse.

This old guy is even more exaggerated than Xie Kai, completely threatening.

Not threatening the Ministry of Industry, but threatening Long Yaohua and Li Mingshan.

This kind of thing is really troublesome.

Up to now, the base has basically been decided, it is not particularly necessary, and it is not possible to get the project if it is necessary. It is impossible for a single unit to involve all areas of the national industrial system.