This special machine tool has a maximum diameter of 12.5 meters and can process 160-ton propellers, which is now more than enough for hundreds of thousands of tons of tankers to process marine propellers. [≤ eight [≤ eight [≤ read [≤ book, .▽.o√

Moreover, this set of processing technology programming is also compiled by the Machine Tool Research Institute, and the material formula used in the propeller is also developed by the Machine Tool Research Institute.

In order to adapt to the operation of the long-term seawater high corrosive environment, the Machine Tool Research Institute and the Naval Engineering University jointly developed a special copper alloy to be used as a propeller, after a variety of rigorous tests, the performance of the propeller made of this special copper alloy is fully up to standard.

Moreover, the Machine Tool Research Institute has also mastered the welding process and welding materials of this special copper alloy, which can be regarded as completely overcoming all the technical difficulties of large propellers.

Thanks to the algorithm model of the alloy design model of Liu Fuping experts, now this algorithm has been fully promoted in Huaxing Group Company, and the Machine Tool Research Institute is also on this basis to make this model algorithm more accurate, and now the speed of designing the alloy is very fast, and it is very accurate, and the success rate of the designed alloy is very high.

That is to say, what kind of alloy is needed by Huaxing Group can be quickly designed, and a complete set of alloy preparation technology and processing technology will also be quickly compiled.

The Machine Tool Research Institute mainly compiles this complete set of processes, of course, will not let these technologies lie there and sleep, and many technical patents have been authorized to domestic enterprises to use.

In the propeller processing workshop of the Honghu Shipyard, Yang Jie saw that the huge machine tool was roughing the five-bladed propeller on a huge fixture, and the cutter on the spindle was running precisely against the curved surface of the propeller blade, cutting off the yellow metal chips. ⊙√ Eight ⊙√ Eight ⊙√ Reading ⊙√ Books, .2 ● ≥

Such a set of super-large machine tool machine tool research institute price up to more than 60 million, is now leased to Honghu shipyard use, before the domestic small and medium-sized propellers are built manually, the previous two shifts of workers 24 hours to dry, 17 eight days to complete a set of small and medium-sized propellers, now only need only 3 days to finish, and the number of workers has been greatly reduced.

Now these machine tool technicians have received up to one year of training in the machine tool research institute before they can take up their posts.

Since the Honghu Shipyard has mastered the manufacturing technology of large and medium-sized propellers, the orders have been filled, because there is only such a company in China that has mastered this manufacturing technology, and the technical level is on par with the technical level of the military industrial enterprises that manufacture aircraft carriers in the United States, which is very remarkable.

It is not an exaggeration to say that large marine propellers are black technology in the machining industry, and there are very few countries that can master this technology in the entire Blue Star, and they can be counted on one hand.

Now Honghu Shipyard is not busy just receiving propeller orders, like this super-large propeller a price of tens of millions, Honghu Shipyard can earn millions of dollars for each production of one, last year's shipyard only propeller design and processing revenue reached seven or eight billion, and the profit is very high, which makes Honghu Shipyard the same as the New Year.

The key is that Honghu Shipyard now has such a complete processing technology for heavy equipment and propellers, and it is also a big mountain that stands in the way of the construction of large ships in Huaxia.

Therefore, Yang Jie came to inspect this time, and Honghu Shipyard also welcomed it ceremoniously, and the God of Wealth like Yang Jie can make many companies live a very nourishing life by plucking their roots and hairs, and even some leaders from above may not have paid so much attention to it.

After the shipyard passed the rectification, the shipyard has now become a mixed enterprise, and the local government has supervised the shipyard's shareholding, and the Huaxing Group Company has also invested in the shipyard, and the three parties jointly supervise, and the power of the former military representatives has also been restricted.

Now Honghu shipyard has fully realized the corporatization management, and at the same time carried out equipment and technology upgrades, the shipyard has also transferred a group of technical backbones to the machine tool research institute for further study, several sets of combination punches down, and now the quality control quality of the shipyard has reached a great level.

At the same time, the engine plant of the Honghu Shipyard is now producing high-power fuel cells and permanent magnet motors, and will no longer produce diesel engines in the future.

Now that the power system of the military's new ship design has been replaced with a power system composed of fuel cells and permanent magnet motors, as well as a medium-voltage DC integrated power system, the military is no longer interested in such power systems as diesel power systems and gas turbines.

The advantages of the power system composed of fuel cells and permanent magnet motors in terms of noise, power consumption and volume are too great!

In particular, the military is simply irresistible to the low noise and low vibration level of fuel cells and motors, the key is that the cost of fuel cells and permanent magnet motors has dropped significantly, and the military is naturally fully replaced with this system.

On the morning of this day, Yang Jie also entered the dock of the military port at the Honghu City Shipyard and military representatives to inspect the Yuan-class submarines built in Honghu City.

This outfitted Yuan-class submarine is in the shape of a water drop as a whole, which is very different from the previous model whale head line, and is larger, and the submarine with sound-absorbing tiles glows with a deep black luster in the sunlight, like an incomparably huge black fish quietly docked at the dock.

Chief designer Shi Gang introduced the submarine to Yang Jie at this time.

"Yang Shao, we have installed a large active and passive sonar system in the lower half of the bow, we have upgraded the technology of Russian products, and equipped with broadside arrays, and the hydroacoustic system has been greatly improved compared with the Kilo-class submarines. ”

Yang Jie nodded: "You are developing the towed line array technology, right?"

"Yes, the technology is not mature yet, and it may take four or five years to start using it. ”

Shi Gang said: "Compared with the technology of Kilo-class submarines, our products use fuel cells and permanent magnet motors, which frees up a large part of the space, which is of great help to improve the living environment of the crew." ”

Yang Jie nodded, he knew that the Kilo-class submarine used floating raft shock absorption technology and pipeline vibration isolation technology, and at the same time used the traditional power system, which naturally further compressed the internal space of the submarine and increased the weight.

The Yuan-class submarine uses a five-megawatt fuel cell to provide all the power, and at the same time uses a three-megawatt permanent magnet motor to drive the propeller, which is only one-third of the original power system!

What's more, the noise level of the submarine has been reduced to a very low level, which is already lower than the background noise level of the ocean, and has truly become a black hole in the ocean!

When Yang Jie stepped on the back of the submarine, he stepped on the silencing tile and felt the astringent friction on the soles of his feet, and he couldn't help but stomp his feet a few times. 11