"When we designed the program, we took into account the elastic retraction of the steel plate. Therefore, we designed a certain processing margin. We also studied a lot of steel parameters and refined these parameters according to the differences of each steel plate."
Hu Yong's face was also very excited: "Now it seems that our design is perfect."
"Well, not bad." Qin Tao is also very satisfied. This is only the first experiment, and it has achieved such satisfactory results, which shows that after these years of hard work, our CNC designers have become more and more experienced.
.
There are already independent multi-axis CNC machine tools in China, and now this kind of bending machine has begun to enter the CNC era!
"This is definitely a revolution in our shipbuilding industry!" Zhao Changshui also sighed there. Although he has become the director of the machinery factory here, after all, he is still a shipbuilder. At this time, Zhao Changshui is more optimistic about this machine.
Qin Tao nodded, and then said: "Yes, it is a revolution in the shipbuilding industry. However, this machine has just been developed, and there must be many imperfections. After the successful experiment of this prototype, we will first build one
A large plate bending machine with an area of an ordinary steel plate is placed in our Mingzhou Shipyard. After repeated use, various problems were reported and then modified."
Zhao Changshui nodded: "Okay."
This is the only way for a new machine to go through. It must be tried out first and all possible problems that may arise must be solved. Of course, he didn't know that Qin Tao had another meaning when he said this.
"At the same time, our project must be highly confidential and no secrets can be leaked."
With every innovation in technology, there will be winners and some will be eliminated.
The bending machine invented by Mingzhou Group will greatly increase the speed of shipbuilding, reduce shipbuilding costs, and gain an advantage in competition. At the same time, such a bending machine will also arouse the covetousness of many peers.
Other shipyards also want to improve the efficiency of bending plates and free themselves from heavy manual labor. However, they are unable to make similar products. Now that they have made them, they have to guard against being copied by them.
past.
So, in the first few years, be sure to keep it a secret!
Even brother factories cannot obtain this product. This is an important product that Mingzhou Shipyard has developed and is popular all over the world. In a few years, it will not be too late to promote it to brother units. In the past few years, we have first
try out!
This reason is also very sufficient and others cannot say anything.
"Mr. Qin, we can be stationed in Mingzhou. If there are any problems, we will deal with them as soon as possible." Hu Yong also began to express his position.
"This should not be used. If there are any problems, we will contact you. Now that this bending machine has been successful, you should continue to work hard and continue to build more advanced shipbuilding equipment."
Keep up the good work?
Hu Yong's eyes lit up: "Mr. Qin, please speak!"
"Our domestic CNC shipbuilding equipment still lacks professional plate rolling machines." Qin Tao introduced: "Next, we need to overcome the technical difficulties of the three-roller plate rolling machine. This kind of plate rolling machine must be wide-body.
Steel plates with a width of more than five meters can be processed by rolling the steel plates out of a steel cylinder."
Three-roller plate bending machine!
This is equipment that Mingzhou Shipyard and even domestic shipyards still lack. It is specially designed for special aircraft and is used to build submarines!
If you want a submarine to dive into very deep water, you need a high-strength steel plate that is rolled directly into a cylinder. Therefore, it requires a lot of pressure. For example, in later generations, the largest three-roller plate rolling machine was used to process it.
At that time, the pressure was as high as 8160 tons!
The greater the pressure of this plate rolling machine, the stronger the steel plate that can be processed, and the larger the diameter will be.
Domestic submarines can only build a few thousand tons because the bending machine is not powerful and the processing diameter is too small. Although Lao Maozi's submarine has an underwater displacement of tens of thousands of tons, it uses a double-shell structure with a pressure-resistant shell inside.
It's not big, but it's because their plate bending machine is not powerful.
At present, the most advanced technology of plate rolling machines in the world is in Sweden. Other countries that manufacture submarines all import plate rolling machines from Sweden.
The Kangaroo Country also wanted to build submarines, but they did not have such a plate rolling machine, so they transported rolled steel tubes directly from the United States. As a result, there was a problem during transportation, and several were scrapped. The welded submarines also failed.
It cannot meet the design specifications. The error of this thing cannot exceed two millimeters!
A new generation of nuclear submarines is being built in the country, and the nuclear submarines designed by the Mingzhou Group are even more transcendent. With the current second-hand bending machine obtained from Lao Maozi, we can only build conventional submarines such as the Kilo class.
There is no way to build a nuclear submarine with a larger displacement.
Therefore, after having the plate bending machine, the next difficulty to overcome is the plate rolling machine!
"Mr. Qin, are there any other technical requirements?" Hu Yong asked.
"The maximum pressure of this three-roller plate bending machine is more than 8,000 tons, and the diameter of the steel cylinder processed can reach a maximum of 13.5 meters."
Hu Yong nodded, as if he knew something: "In this case, we can build a submarine with a displacement of 20,000 tons, and we don't need a turtle back."
The displacement of attack nuclear submarines is not very large, and few exceed 10,000 tons. However, the displacement of ballistic missile nuclear submarines is different. In order to be able to carry a large number of missiles, the displacement of such submarines will be rapidly expanded.
If the displacement is large, the casing needs to be large. If the casing is large, the diameter must be large. What should I do with a plate bending machine that is not that big?
Then just turtle it up.
The emergence of the turtle's back was a helpless choice for early ballistic missile nuclear submarines. The ballistic missiles that needed to be launched were large and long, exceeding the diameter of the pressure hull. There was no other way but to protrude.
The turtle's back of the Yankee's Ohio-class nuclear submarine is so small that it is almost invisible. It blends perfectly with the hull of the submarine. That is because it has an underwater displacement of 18,000 tons.
What about domestic ones?
This chapter is not finished yet, please click on the next page to continue reading the exciting content! Although the third design department of Mingzhou Group has only designed nuclear-powered attack submarines so far, of course, in the future, ballistic missile nuclear submarines will also be involved, so
, the displacement will definitely increase, and the corresponding plate bending machine must be owned. Even if it costs billions, this important equipment of the country must be manufactured!
After the inspection of the bending machine project was completed, it was already noon. After having dinner in the machinery factory, Qin Tao did not leave, and then inspected the progress of the lift fan.
This project is directly related to the J-31A project, and Qin Tao attaches great importance to it.
Wang Jinbao introduced to Qin Tao with excitement: "Mr. Qin, after our many contacts, we finally found a domestic manufacturer specializing in aircraft composite brake pads. We use the materials they produce as clutches. After testing, they can meet ten requirements.
About twice the service life!”
For an aircraft, it is absolutely unbearable to have to replace the clutch five times including takeoff and landing. However, for the R&D personnel, this is already a huge breakthrough!
After all, they couldn't solve this problem at all before, not even once. Every time they were combined and separated, they were almost burned instantly.
Qin Tao nodded: "The next step is to optimize your control program and make the combination and separation smoother, which can increase the service life to about twenty times. Then we will wait for the continued breakthrough of domestic friction materials."
When I first saw the French Mirage 2000 braking directly without deploying a drag chute, the country was greatly stimulated and began to develop composite brake pads. Now, I don’t know whether they can be used on aircraft. At least they are provided to our own side.
A convenience.
Of course, there is no best, only better, and they still have a lot of room for development.
"Now that these projects have been completed, it means that we can match the turbofan 15 engine." Qin Tao said: "This is really good news. Next, we need to publicly display our vertical
The takeoff and landing power system is on!”
On the bending machine project, Qin Tao is very cautious and implements strict confidentiality measures, fearing that others will learn from it. As for the vertical take-off and landing power, he wants to publicly display it. This is of course to annihilate the 31A
Wave the flag and strive to get more user investment.
"Of course. Next, our project can be placed in the Aerodynamic Research Institute. They have a special test bed and a turbofan 15 engine. We need to conduct matching experiments with them."
"Of course." Qin Tao nodded: "This is a phased result."
Qin Tao highly affirmed the progress of this project.
This project also has many purposes, one of which is to take the road of the Yankees and make the Yankees have no way to go!
Across the ocean, what's going on with the development of the X-32 and X-35?
Qin Tao was a little curious.
Boeing Company.
"This is the speed of our Boeing! We are far behind our competitors. Even if they laugh at our aircraft as flying toads, we are definitely the first to fly into the sky!"
While other competitors are still working on detailed designs, Boeing's X-32 prototype has been built!
There are many reasons for this. For example, this project of Boeing Company is not a new one. The AVX-70 in the ASTOVL project has already laid the foundation for them. Later, when bidding, the project was just modified.
That's all.
Therefore, they make the fastest progress.
Now, looking at the prototype aircraft that is about to undergo test flight on the runway, everyone is very happy.
The test pilot held his helmet and strode toward the aircraft. Under the gaze of countless people, the aircraft started, taxied, and climbed.
For the first test flight, they did not use a high-end vertical take-off and landing, but taxied to take off like an ordinary fighter jet. After all, their aircraft was out, but the improved engine specially developed by Pratt & Whitney for this project was not yet available.
appeared, they could only use the F-119 engine on the F-22 fighter jet, which did not have enough thrust to provide the power required for vertical takeoff and landing.
"How come its rolling distance is so long?" An Air Force officer present frowned.
"Isn't its low-altitude performance as bad as the F4D?"
Many people have frowned, and the people at Boeing are already sweating profusely. The first big problem of the flying toad has begun to trouble them!
The Flying Toad uses a tailless delta wing structure, which is Dassault's signature layout plan: when the engine is not powerful, this layout can achieve good lift, climb rate, and high-speed advantages.
For the flying toad with a big mouth, this layout can make up for many of its shortcomings. Moreover, the thick delta wing can also store a large amount of fuel. Almost all of the planned nine tons of internal fuel will be stored in the wing.
of.
This even resulted in the wings being unable to fold.
But another trouble with the tailless delta wing has emerged: poor low-altitude performance and poor takeoff and landing characteristics!
This prototype was the first to fly, and its huge flaws have been exposed. Even if it uses advanced fly-by-wire operations, it cannot save its own flaws.
Unless it is changed to a canard layout or a normal layout, no matter which one, it almost means that the entire project has to be started over!
This is not the only technical flaw it has. In the future, more flaws will be exposed.
It was December 1995, and Qin Tao returned to Mingzhou with his wife and children.
The day after he returned, Qin Tao attended the opening ceremony of the nuclear power plant.
If it were a conventional nuclear power plant, it would never be put into commercial operation without three to five years of construction. Thanks to the nuclear power plant in front of you, the planned nuclear submarine reactor was directly transplanted, and almost all final assembly was carried out in the factory.
, and then transported directly by ship.
This chapter is not finished yet, please click on the next page to continue reading the exciting content! Flags were fluttering in the nuclear power plant, colorful flags were fluttering, and Qin Tao was also very excited.
"This represents the beginning of a new era!" Qin Tao stood in front of the microphone, looked at the countless guests, and said excitedly: "The power of the nuclear reactor of our nuclear power plant is 150 megawatts, and the power generation exceeds
Forty megawatts will allow our Mingzhou Group to completely achieve self-sufficiency in electricity consumption. In the future, due to power shortages, many places may have power cuts, but we don’t have to worry because we have our own power station!
"
In the 1990s, industries in various places developed faster and faster, especially in southeastern coastal cities, which also brought a large demand for electricity. In periods of high load, there will even be power cuts.
Although Mingzhou Group has not been hit by a power outage so far, this does not mean that it will not happen in the future. Think about how you can use your own electricity in the future without having to worry about the risk of power outages, and it does not cost any money!
It's just an initial investment. In the end, there will only be maintenance costs for personnel, and these personnel are sent by relevant domestic institutions. Mingzhou Group will only provide a subsidy at most.
This is definitely a good thing.
"Excuse me, is your nuclear power plant safe?" At this moment, someone below said in an unskilled tone.
Of course, a large number of reporters will come to such a major event, and the Mingzhou Group cannot stop it, so among these people, there will be some nitpickers.
Qin Tao looked at him. He was short, yellow-skinned, and could not curl his tongue when speaking. Needless to say, he must be from the island country.
"In the world, nuclear power technology is constantly developing." Qin Tao said: "So far, the two most serious nuclear power accidents in the world were both first-generation nuclear reactors, especially the Chernobyl nuclear power plant accident.
It is artificially caused by amateurs leading experts.”
"Our nuclear power plant has reached the technology of the third-generation nuclear power plant in the world. It is built quickly, has high fuel utilization rate, and is safe and reliable." Qin Tao said: "If you want to worry, you should worry about your third-generation nuclear power plant."
A first-generation nuclear power plant!"
There was laughter all around.
Island countries are severely lacking in energy, so they have launched a large number of nuclear power plant projects. Moreover, because they are island countries, their nuclear power plants are built directly on the seashore and use seawater to dissipate heat.
Usually there is no problem, but if there is an earthquake or tsunami, it may cause huge problems for their nuclear power plant.
These people are actually worried about themselves?
"Our nuclear power plant is absolutely safe and will not cause any problems. We have first-class technology and management experience!" The reporter was anxious and blushed: "Your nuclear power industry has just started and everything is still being explored. I hope you will
We must pay attention to environmental protection and do not do things that damage the world's environment."
"Thank you for the reminder." Qin Tao looked at the guy with contempt on his face: "Our nuclear power plant is an integrated design. During its entire life span, which is from twenty-five to thirty years, it does not need
When replacing nuclear fuel, we will not dismantle it after its life span, but will seal it as a whole. This will avoid any possibility of nuclear leakage. What about you? Your nuclear wastewater storage is almost full.
?Are you planning to pour it directly into the sea water?"
The other party immediately stopped talking.
The island country is vigorously developing nuclear power plants, but it has not considered how to deal with the nuclear wastewater at all. It temporarily stores it in cylinders. When the storage is full, it will threaten the whole world. Give me money, give me land, let me
If you don’t give it to me, I’ll throw it into the sea!
Such a country that has harmed the world's oceans now still has the nerve to accuse the East? The abandoned nuclear materials in the East are buried deep underground and are processed on its own soil, and will not affect other countries at all.
"Your nuclear reactor has such a long life? Doesn't it need to add nuclear materials midway?" Other reporters asked curiously.
"Yes, we have adopted a special design, and this is also the current trend in the world. Nuclear submarines in various countries are pursuing the same life span of reactors and submarines, so as to avoid replacing nuclear fuel halfway through service. Our nuclear technology is in line with the world.
Of course it can reach this level.”
When did Eastern nuclear technology suddenly become integrated with the world? A few years ago, weren't they still in contact with France and wanted to introduce French nuclear power technology?
Everyone is very curious, but this is a commercial secret and Qin Tao will not say more.
"Why doesn't your nuclear power plant have a chimney?" someone else asked.
"Chimney? What does a nuclear power plant need a chimney for? It's not a coal-burning boiler." Qin Tao said disdainfully: "Only the backward nuclear power plants need chimneys, and those with chimneys will use a lot of fresh water and discharge fresh water.
, there is the possibility of causing pollution, we are responsible and will not do such a thing!"
"Now, let's start the nuclear reactor!"
The central control room began to operate. The cadmium rods that controlled the reaction speed were slowly withdrawn. The nuclear reactor began to generate heat, and the cooling water inside began to circulate slowly.
Half an hour later, Qin Tao came to the control computer room.
"The reactor is operating normally and the secondary circuit pressure has reached the rated value."
"Prepare to start the turbine, prepare the generator!"
"Is it time to connect to the grid next?" Listening to the news coming from the control room, someone among the reporters outside asked curiously.
"It shouldn't be necessary. They use a separate circuit."
"No, I heard that DC power transmission is used, and the connection to the grid is very simple."
DC, grid connected?
Everyone is a little curious.
"There's a bulletin board over there, didn't you see it?"
Billboards?
When they rushed over, they saw the illustrations and introductions on the side. It looked really high-end. It was much more complicated than the West that directly generates electricity and then outputs it!
"Awesome, when it comes to high-voltage direct current transmission, they are the best."
"Yes, the relevant components are all produced in their country. The technology in this area has reached the world's top level."
Everyone was sighing with emotion.
"The generator started successfully!"
At this time, the control room was still very tense.
According to Qin Tao's original plan, he directly used a twelve-phase generator and then separated four three-phase electricity to supply different factories. But later, he felt that this was a bit complicated, so he simply made some improvements.
The twelve-phase generator emits a lot of electricity, which is all converted into direct current through rectification, so there is no phase problem. Then it is inverted and converted into alternating current, so that it can be directly connected to the power grid.
For a period of time, the power station was in a trial operation state. The shipyard could not be completely dependent on the power station, otherwise it would be blinded if something went wrong. Therefore, grid-connected power generation solved this problem. Later, it gradually transitioned to the power station.
.
Ma Gong also stayed in Mingzhou temporarily. He needs to take overall responsibility and provide solutions as soon as possible if there is a problem. After all, this twelve-phase generator with a rated power of fifty megawatts is also the first in the country.
!
"This is a moment worth celebrating!" Lao Maozi present said.
As the designer of the entire nuclear power plant project, Krasnopolski had a confident smile on his face. This is already a mature reactor for nuclear submarines. Placing it on land would be overkill and there would be absolutely no problems. As long as
Just strictly control the construction quality. During the construction process of nuclear power plants, he was famously strict and would sternly reject any defective parts.
"Thank you, and thank you to everyone present." Qin Tao said, "You are the heroes of Mingzhou Group!"
The Mingzhou Group's nuclear power plant officially embarked on a new journey on this day. Its commissioning solved the power supply problem of the Mingzhou Group and also reserved qualified power for the next nuclear submarine, even if it is built with a displacement of 20,000
Ton super nuclear submarine, there is no need to worry about not having a suitable nuclear reactor to use!
"No thanks, what we want is the project." Krasnopolski said: "When can our new big shark project start?"