"This hydraulic press was designed by our Huating University and built by our Mingzhou Group." Qin Tao continued to introduce to everyone: "Its maximum downforce exceeds 8,000 tons and can roll steel plates with a thickness of 400 mm.

The width is five meters. This plate rolling machine is composed of mechanical, hydraulic and electronic parts. The electronic part can accurately control the rolling force, and the program was developed by our Huating University."

In terms of factory-school cooperation, Mingzhou Group is also at the forefront. The earliest three-dimensional CNC bending machine was jointly developed by them. Now it has become a good helper in building ships. And now, in terms of plate rolling machines, they

Another breakthrough has been achieved. Without such a big thing, there is no way to build an advanced nuclear submarine. Even if it is built, it will be big on the outside and small on the inside.

Everyone was staring at the plate rolling machine, constantly talking and thinking about it. While everyone was chatting, the first steel plate became more and more curved, and finally, slowly became a ring. The first

The steel plate has been rolled and pressed!

If you count the time, it takes three or four hours to roll a steel plate. This speed is not slow. After all, it is all cold rolled. If it requires hot rolling and repeated heating, it will take even longer time.

.

The rolled steel plate enters the next process: welding.

The huge welding robot arm stretched out, and arc sparks flew.

This scene shocked everyone again.

"We can actually weld fully automatically?"

"Of course, our shipyard produces so many products. If it cannot be fully automated, how much labor will be required? Most welds can be welded automatically, and only a few welds require manual welding." Qin Tao said.

When building liquefied gas ships, Mingzhou Group introduced automatic welding equipment for the first time. After all, manual welding of some special parts of Invar steel is enough. If all welding is done manually, a slight negligence will lead to serious consequences.

A big problem occurs.

After that, automated welding equipment has entered more fields. After all, Mingzhou Group is short of people! There will never be enough skilled welders, even if there are technical schools to continuously train talents, automated welding can reduce labor.

If the quality can be guaranteed, the shipyard will no longer use manual welding for anything that can be welded automatically.

The same goes for submarines, of course.

The formal construction of the submarine began like this. The plate rolling machine rolled out the steel plates and welded them into a ring. Then, the plasma cutting machine cut out several flat plates and stuffed them into the inside of the ring. Several layers inside the submarine.

The deck is welded.

Seeing this efficiency, everyone who comes here is surprised.

"The construction of our 093 submarine is all manual welding, and the construction period is very long. If we have this kind of welding equipment, it can be finalized and put into service at least half a year in advance. Sure enough, science and technology are the primary productive forces!" A leader sighed with emotion.

When you come to Mingzhou Group, you will have a different feeling every time!

Now, when they came to attend the groundbreaking ceremony, they saw the advanced technology of Mingzhou Group, which made them deeply moved.

Modern technology shipbuilding, this is how it is built!

"What you are looking at is just the welding of the internal frame. A lot of the next work can only be done manually." Qin Tao said: "Next, do you want to go and take a look?"

The workshop here only produces nuclear submarines, while the workshop next to it produces conventional submarines.

"The conventional submarine next to it?" Everyone's eyes lit up: "Mr. Qin, is that 039C ready to launch?"

"It still has to wait for a while, but it has basically taken shape. All that's left is to close the front and back. You can take a look." Qin Tao said.

When 039B was born, it immediately amazed the world. In the hands of the navy of the Pyramid State, it played a beautiful trick and attracted the attention of the world.

However, the Eastern Navy is still not satisfied with the performance of 039B. After all, the one for personal use must be better than the one for export!

Under this request, Mingzhou Group came up with the design plan of 039C. The lofty design shocked all the leaders, and then approved the construction.

The construction of conventional submarines also takes time, so it has been until now that the first 039C has finally completed most of the construction work.

There is no outfitting link in a submarine. When various internal equipment are constructed in sections, they must be installed and then welded together.

There are small sections and large sections. For large sections, the submarine is directly divided into three parts: bow, middle, and stern. When the three sections are connected, the submarine is completed.

The Mingzhou Group uses slightly more sections. However, in the previous construction process, each section has been almost built and connected a lot. Now the submarine has been divided into two parts. The front and rear parts only need to be connected.

The submarine is considered complete.

"Since you're here, of course you have to go and have a look!" Everyone was very excited.

"Okay, let's go to our guest house for dinner first. After lunch, everyone will go over to see it in the afternoon." Qin Tao said.

Before they knew it, a morning had passed. Everyone had been in a state of excitement and they didn't even feel hungry. Only when Qin Tao said this did he hear the sound of his stomach growling.

After lunch, everyone went to the conventional submarine production workshop. After entering, they first saw the tail of the submarine, and some people immediately became excited.

"X-shaped tail rudder, this is the first model of our navy!"

"Needless to say, our navy is very small in the world!"

The foreign trade 039B still uses a cross-shaped tail rudder. This kind of tail rudder is the most commonly used. Since the emergence of submarines, this kind of tail rudder has been used. The top and bottom rely on the horizontal rudder surface, and the left and right rely on the vertical rudder surface, just like the aircraft.

Pretty much the same, easy to control.

However, in long-term use, the cross-shaped tail rudder will also have many disadvantages, especially in shallow sea areas. The cross-shaped tail rudder is easy to hit the bottom and be damaged, and the X-shaped tail rudder was developed for this reason.

This chapter is not finished yet, please click the next page to continue reading the exciting content! Compared with the cross-shaped tail rudder, it can not only solve the problem of bottoming out, but also avoid the wake of the control tower, and has advanced performance.

However, it also has a big flaw: it is inconvenient to control.

It has turned an angle of 45 degrees from up, down, left and right. So, when moving horizontally or vertically, which rudder surface should be used and how many degrees should it be deflected?

This requires a computer to calculate!

"It's very difficult to control. Are you sure about it?" a leader asked.

"Of course I'm sure, our fighter plane has a V-shaped vertical tail, and the control principle is similar." Qin Tao said.

The vertical tail of the original fighter plane was vertical, controlling the left and right steering of the aircraft. Later, in order to improve the stealth, the vertical tail was made into a V shape. At this time, controlling the steering of the aircraft required complex calculations. The current X-shaped tail rudder,

It can be considered to be a combination of two V-shaped vertical tails. The control principles are similar and can be transplanted.

Everyone nodded.

"Okay, with this tail rudder, our submarine will be more advanced and more suitable for activities in shallow sea areas. Wait, why can't we see the drive shaft?"

There should be a drive shaft extending from the tail of the submarine. Whether it is a propeller or a pump-jet propeller, a drive shaft is needed to transmit power. Whether it is directly driven or driven by an electric motor, it must be there.

Now, the X-shaped tail rudder you see has no opening at all in the center, so how to drive it?

"You may not have participated in our reporting meeting at that time, so you don't know yet. Our submarine uses a shaftless pump thruster. It only needs to transmit power through cables. The electric motor has been integrated into the pump jet thruster.

, this can completely eliminate the drive shaft and make the noise smaller."

Shaftless pump push!

Many people were surprised when they heard this introduction.

The pump jet propeller is equivalent to adding a package outside the propeller, which can improve the efficiency of the propeller and reduce the noise. Therefore, it is loved by many submarine designers. Seven-blade and nine-blade with large side slope are better than

But pump push.

However, early pumps were still driven by transmission shafts, and even the propellers could be directly replaced to transform old submarines. Now, the 039C manufactured by Mingzhou Group has taken a big step forward and entered the era of submarines.

The era of shaft pumping!

"In this way, if the motor is directly immersed in sea water, won't you be afraid of problems?" Someone expressed concern.

In the past, the motor was plugged into the tail of the submarine, so that it was sealed inside. As long as the sealing problem of the rotating shaft was solved, there would be no water leakage. But now, if it is placed outside, there are many problems.

"We have gone through a lot of testing. There should be no possibility of water leakage during the entire life of the submarine. Our waterproof level is the highest."

Just like cars, if you want to ask which car has the highest waterproof level, it is definitely an electric car. If a fuel car is soaked in water, the most you can do is to disassemble the engine and repair it, and it can still be used. If an electric car is soaked in water, if it leaks, then

People may not have time to run out. Even if they jump out of the car and step into the water, they may still face the risk of being electrocuted.

If you want to avoid such accidents, in addition to avoiding wading in water, you must also do waterproofing work.

The same is true for submarines. With shaftless pumps, of course the waterproofing work must be done well.

After a pause, Qin Tao continued to explain: "You can think of this shaftless pump pushing itself as a small submarine. There is only one motor in the hull of this submarine."

Aren't you afraid of water leakage inside the submarine? Of course you are, so you need to do a good job of protection. The same is true for shaftless pumps.

"Where is this shaftless pump? Can you let us see it?" Everyone was curious.

"We are still assembling it at Huating, and we will install it after the hull is closed," said the person in charge of the site.

"Why didn't you coordinate in advance for such an important thing?" Some people were dissatisfied.

"There is no way, the funding from the Navy has been delayed." Qin Tao said: "If the funding is not in place, we can only delay ordering the pump. After all, this thing is from the outside. If we delay the installation of the inside,

Then the submarine construction work will have to stop."

The person who asked the question suddenly stopped talking.

Qin Tao continued: "Our Mingzhou Group has advanced a lot of funds, but they are all advanced to the aircraft carrier. This submarine can only be as deep as the number of meters."

"Okay, everyone, stop looking around the tail of the submarine. There are many interesting things in front of this big guy." Wu Shengli said, "Let's take a look at the front."

The awkwardness just now was broken, and everyone continued to move forward.

After walking around the tail of the submarine, you can see the front half of the submarine. When they saw this half, everyone exclaimed again.

"What's going on with the submarine's control tower?"

"Isn't the smaller the command tower, the better? Why is the top of the command tower shaped like this, as if it is wearing a hat?"

"Everyone, this is the result of our study of fluid mechanics. The polygonal shape of this control tower can better reduce navigation noise and resistance." Qin Tao introduced to everyone: "Of course, no one will believe it no matter what I say now.
To be continued...