Chapter 225 Titanium Alloy Submarine

"Our Shenzhou floating dock has also arrived, and the time is just right." When Qin Tao got off the huge Kuznetsov, he was pleasantly surprised to find that a huge ship had already parked on the distant pier. On the floating dock, the large characters flying and phoenix dancing on the side are very clear.

   During this period, there was no delay at all, just waiting for the Shenzhou floating dock to start.

Thinking of what happened along the way, Yang Xi was filled with emotion. With Mr. Qin, everything is possible. They successfully visited the entire Kuznetsov and listened to the confrontation outside. Later, the Northern Fleet came to meet him. The warship arrived, and the Americans had to leave angrily.

   Along the way, he has seen too many things. After leaving the nuclear submarine, he did not think that he would have such an opportunity. It is really rare.

  At this time, Yang Xi was feeling emotional while watching Uskimenko walking towards them with a person.

   "Mr. Qin, let me introduce. This is Kanishevsky. He is in charge of the scrap iron north of Kola Port. He will take you there." Uskimenko said.

After getting this heavy aircraft-carrying cruiser back, there are still many follow-up things, so Uskimenko went to work. Before leaving, he personally introduced the person in charge to Qin Tao, which showed his respect for Qin Tao. attention.

   "Okay, thank you." Qin Tao said to Uskimenko, and then looked at Kanishevsky: "Thank you for your hard work, take us to have a look."

  Several people boarded a Lada sedan and proceeded along the Kola Peninsula for an hour before arriving at a desolate pier.

Surrounded by white snow, a dark green train appeared on the flat land. This train was still an ancient steam locomotive, gasping for breath, dragging four flatbed cars away. There is a steel tank, the side is not covered by snow, and the logo of the skeleton can be seen vaguely.

   "Those things..." Yang Xi said in surprise, but didn't continue.

   "I guess, what was transported inside were the things dismantled from the nuclear submarine reactor." Qin Tao said: "These things were transported away, and they should have been buried deep in the ground in a no-man's land, right?"

  Kanishevsky nodded: "Yes, you are right, this train runs every three months..."

Having said that, Kanishevsky also stopped, and he shouted to the driver: "Ivan, you drive the car slower, let's stay away from that guy, you didn't see the extra installation on our car Is your Geiger counter ticking numbers right now?"

   Ivan stepped on the brakes.

   After the train started to leave, it stopped for another three to five minutes before the car continued on the road, passed through the railway crossing, and continued to move forward.

The decommissioned nuclear submarines are like sharks, floating side by side next to the port. It is freezing cold, and the parts of the nuclear submarines out of the water are covered with a thick layer of snow, but the sea water next to them is not frozen. It looks very weird.

   "All the submarines here have had their nuclear reactors dismantled. They are already the safest. Therefore, I suggest you choose scrap iron from here. Your Excellency Uskimenko has explained that we will not treat our good friends badly."

This is also a mistake. If there is no experience of returning from the warship with Uskimenko this time, I guess the old man would strongly recommend the one with a nuclear reactor. After all, they don’t want to deal with nuclear waste. Qin Tao might still You have to accept it, but now, the relationship between the two parties has become more friendly, so the priority is to choose from nuclear submarines that have dismantled their reactors.

   "Is this also a nuclear submarine? Isn't it too small?" Yang Xi pointed to a submarine ahead.

  Yang Xi is a submariner and is very familiar with all kinds of submarines. The submarine in front of him has a very smooth shape, and even the conning tower is perfectly integrated with the submarine hull, which is quite beautiful.

   But it's too small, isn't it? According to visual estimation, it looks like two to three thousand tons. Now even ordinary diesel-electric submarines can mostly reach this displacement. Nuclear submarines, at least five or six thousand tons.

  However, after Qin Tao saw it, he couldn't help but get excited: "If I'm not wrong, it should be a Type 705 nuclear submarine?"

  Kanishevsky nodded: "Yes, it is our second-generation nuclear submarine."

  Yang Xi finally realized: "Titanium alloy..."

  Before he finished speaking, he was stepped on by Qin Tao, so he quickly shut up.

   "This submarine, scrap iron price, we want it!"

   Unexpectedly, I picked up a treasure when I came up, and actually encountered a titanium alloy submarine. Buy titanium alloy at scrap iron price!

  In later generations, titanium alloys have become rotten. Even spectacle frames can be made of titanium alloys, which are light and durable, which is also an advantage of titanium alloys.

Specifically, the density of pure titanium is about 4.5 grams per cubic centimeter, which is only about half that of carbon steel, but the ratio of tensile strength to density reaches 62, and it reaches more than 200 after alloying. The value is only 36.

   That is to say, under the same performance, using titanium alloy to build a submarine can greatly reduce the weight of the submarine itself. Under the same weight, the strength of the submarine will be great, and it can dive into deeper water.

  At the same time, the low magnetic properties of titanium alloy itself can help submarines better hide underwater and avoid detection by geomagnetic detectors. Therefore, in terms of the characteristics of the material itself, titanium alloy is suitable as a manufacturing material for submarines.

  However, apart from titanium alloys used in aerospace, submarines of other countries have never seen titanium alloys.

   The advantages are outstanding, but the disadvantages are even more prominent!

  The first disadvantage is that it is expensive. In the era when this 705-class nuclear submarine was built, the price per kilogram of titanium alloy plate was as high as 14.5 rubles! Not only is the price expensive, but also the processing is complicated, because the ability of pure titanium and titanium alloys to absorb hydrogen, oxygen, and nitrogen increases significantly after high temperature, which eventually leads to obvious embrittlement of welded joints and a serious decline in mechanical properties. Therefore, titanium alloys cannot be welded in the air, and need to be carried out under protection or even in a vacuum environment.

  For titanium alloy welding of aero-engines, welders wear full suits and drill into a fully enclosed welding workshop, just like astronauts. However, it is impossible to build such a large sealed workshop for welding submarines.

   So, soldering is difficult.

  Lao Maozi’s first titanium alloy submarine was Type 661, which took more than ten years to build. And, being an experimental submarine, only one was built.

  Type 705 is the second titanium alloy submarine.

  Nuclear submarines, why only have a displacement of two to three thousand tons? It's not because it has to be made of titanium alloy! It's so expensive, so difficult to solder, and it's too big, how much will it cost and how long will it take?

Lao Maozi also has to count the cost, so this type 705 submarine has an underwater displacement of just over 3,000 tons, which is simply the younger brother of nuclear submarines. When it can only dive two or three hundred meters, its diving depth can reach 400 meters. Although it is incomparable with the 685-type submarine with more than one thousand meters, it is still very powerful in this era. that's it.

The size of the submarine is small, and other components have to shrink. Although the ordinary pressurized water reactor is safe, it is too large. Therefore, it uses the VT-1 lead-bismuth liquid lead-bismuth metal reactor improved from the 661 submarine. , small in size and strong in power, it has successfully allowed this submarine to travel faster than forty knots underwater, even faster than some torpedoes, so when it encounters a blow, it can rely on endurance like the MiG-25 win.

   But the disadvantages are also great. Whether it is titanium alloy or liquid reactor, they are too advanced technologies, and these technologies mean risks.

During the service of the 705 submarine, there were many accidents abroad. For example, the first boat K-64 was found to be cracked in the pressure hull before it was in service in 1971. The reactor cooled and solidified in 1972. It was decommissioned in 1974 and demolished. solved.

  Brothers and brothers K-123 boat suffered nuclear pollution in 1982 due to a leakage accident in the primary circuit of the reactor.

  At the beginning, Lao Maozi built a total of seven submarines of the same model, but none of them lived normally. After they all joined the Northern Fleet, they basked in the sun on the pier all the year round, and could not go out to sea to perform missions at all.

  So, last year, all Type 705 submarines were decommissioned and placed on the dock.

  If it’s another submarine, just throw it here and it’s over. However, the Type 705 submarine is different, it uses a liquid metal reactor!

  What's wrong with this?

   Big problem! Except for mercury, ordinary metals are solid at room temperature. Therefore, after the nuclear reactor of the 705 submarine is assembled, it must be in operation all the time, and the heat inside must keep the metal in the pipeline in a liquid state.

  For other nuclear submarines, just stop the reactor directly. For this kind of submarine, just stop the reactor.

  So, other decommissioned nuclear submarines can be placed here to be exposed to the sun and wind. However, the 705 type is different. After this type of submarine docks at the dock, the reactor must be dismantled and taken away.

  So, it must not have a nuclear reactor, and it has saved Qin Tao a lot of trouble, but just this one is far from enough.

   "Is there any scrap iron of the same model as it?" Qin Tao asked Kanishevsky.

"This K-316 is the first ship to be dismantled. Currently, K-463 is being dismantled, and it will probably take a few days." Kanishevsky glanced into the distance, here Although it is a submarine cemetery, there are still workers working. The lonely dock in the distance is equipped with cranes and other equipment to dismantle nuclear reactors.

Qin Tao nodded: "Then let's wait a few more days, and we will take the two submarines away after they are disassembled." Qin Tao said: "Next, let's see if there are any other suitable scrap iron. "

  Scrap iron price, buy two 705 submarines to go back, this business will make a lot of money, a 705 nuclear submarine uses 600 tons of titanium alloy! Qin Tao is elated.

   In addition to making money, the shape design of this nuclear submarine is also quite good. If you take it back and study it, it may also inspire the designers of nuclear submarines.

  Anyway, Qin Tao doesn’t need it. His Mingzhou Shipyard is not capable of tinkering with things like nuclear reactors, at least for the time being.

This 705-type nuclear submarine has other technologies besides titanium alloy and liquid reactor. Hertzian circuits are quite different, increasing the efficiency of alternating current and reducing the size of various electronic components. You can take it back for research.

   There are also automated attack systems, etc., which are all good.

  My own floating dock is very large, so it is not suitable to carry only two small submarines. Anyway, I have come here to see if there are other scrap iron.

  However, the good luck seems to have run out, and none of the remaining submarines is eye-catching. They are all old first-generation submarines. There is nothing useful inside, just pure scrap iron.

   "I heard that you have a Type 941 submarine. Did an accident happen during the exercise?" Qin Tao couldn't help asking Kanishevsky when he thought of the Typhoon class.

   "Yeah, it was lucky that there was no explosion at that time. The shark drove back to the Severodvinsk Shipyard for repairs."

  Like other nicknames, Typhoon was given by NATO. Lao Maozi called the Typhoon-class nuclear submarine Shark.

Lao Maozi has many shipyards. The No. 444 shipyard in Nikolayev City is well known by everyone because it can manufacture aircraft carriers. However, this shipyard was not ranked among Lao Maozi before building aircraft carriers. . After all, the Baltic Sea was the most important thing in the Tsarist Russia era.

Lao Maozi has two nuclear submarine production plants, the largest of which is the Admiralty Shipyard in St. Petersburg (also known as the Admiral Shipyard, the 194th Shipyard). This factory was established in 1704 and has a long history. After World War II, Just produce all kinds of conventional submarines and nuclear submarines.

   Now the two titanium alloy submarines that Qin Tao wants to buy are the masterpieces of the Admiralty Shipyard.

  In addition to this factory, it is the Severodvinsk Shipyard. The famous Typhoon-class submarine comes from this shipyard. These two are also the only shipyards that can weld titanium alloy nuclear submarines.

   At this time, thinking of the Typhoon-class nuclear submarine, Qin Tao also felt itchy in his heart. He said to Kanishevsky: "I wonder if we have a chance to visit the Severodvinsk Shipyard?"

  Kanishevsky shook his head: "I'm sorry, there are our navy's top secrets there, you can't go."

  Lao Maozi attached great importance to nuclear submarines. Later, when Da Mao was in the most difficult situation, he eliminated a large number of warships, but he still squeezed funds out of his teeth to complete the construction of new nuclear submarines.

   Now, Qin Tao wants to visit the nuclear submarine manufacturing plant, but that is impossible. After all, he is here to collect junk, not to travel, and Kanisevsky has not accepted such a request.

   "Yes, I'm sorry, I was too abrupt, please accept this little gift." Qin Tao said, and took out another gold watch, which was exactly the same as the one given to Uskimenko.

Seeing the gold watch, Kanisevsky's eyes lit up. He put the watch on his ear and listened carefully to the sound inside. Then, he wanted to bite the case of the gold watch with his teeth, but in front of Qin Tao's face was a little embarrassed.

  Since I took something, of course I have to help.

Kanishevsky thought for a while, and then said: "It is impossible to visit the Severodvinsk Shipyard, but there is a Nekhba Shipyard near us. I am very familiar with it, and I can take you in for a visit, where a Type 949 nuclear submarine is currently being repaired."

Don’t even think about the Type 941 Typhoon-class nuclear submarine. After all, the level of secrecy at the Severodvinsk Shipyard is quite high. However, the level of secrecy at the Nekhba Shipyard on the Kola Peninsula is not so high. They are nearby, so they often walk between each other. Kanisevsky is very familiar with that side, and he can take Qin Tao there to experience his eye addiction.

  That's right, it's just an eye craving, and it's impossible to take those submarines back as scrap iron.

  Qin Tao nodded: "Thank you very much."

  You can’t see the typhoon level, but you can also look at the Oscar level. Qin Tao is quite satisfied with this arrangement.

   After all, he still has to wait for another submarine to dismantle the reactor, and then take them away together, so Qin Tao is not in a hurry. He can still go around for a few days.

  The gold watch brought two pieces, and one piece for Kanisevsky in front of him, which can be regarded as spending all his money. I hope he will not let himself down.

  Several people sat in a Lada car and headed for the Nekhba Shipyard.

  Under the aura of countless large shipyards in the Soviet Union, Nekhba Shipyard has always been unknown, but because it is on the Kola Peninsula, it also has unique advantages.

   It is not so much a shipyard as a ship repair yard. If there is a small problem with the warships of the Northern Fleet, they will choose to repair them here.

In the late 1990s, due to the increasing number of nuclear submarines decommissioned by Lao Maozi, the potential risks were also increasing. Therefore, in order to avoid getting burned, several nearby countries contributed money to help Lao Maozi solve the problem of nuclear submarines. The Nekhba Shipyard has also begun to dismantle the decommissioned nuclear submarines. However, the processing speed is still very slow, and some problems occasionally arise.

  The Lada sedan drove into the Neheba Shipyard with ease, even the guards at the gate didn't check it, obviously they were very familiar with this car.

  The car quickly drove to the side of the dock. When several people got off the car, the huge Type 949 nuclear submarine was under construction in the dock.

  The shipyard here does not look as good as the Mingzhou Shipyard, which has not made a fortune. When he saw the scene of construction in the dock, Qin Tao felt even more dumbfounded.

   On the way here, he kept thinking, this Oscar nuclear submarine is different from the titanium alloy submarine, it is very mature! I have never heard of the need to enter the dock for maintenance in 1991. What is going on?

   Now that he saw the construction scene, he realized that the so-called construction is actually to re-paste the fallen sound-absorbing tiles!

As a behemoth with a displacement second only to the typhoon class, it looks like a huge shark. Since anti-ship cruise missiles are arranged on both sides, its cross-section is not the circular cross-section of an ordinary nuclear submarine. The square with four arc transition corners, people can stand on it without worrying about falling.

"This is the second of the 949 nuclear submarine, the Murmansk." Apparently Kanishevsky is very familiar with it, and introduced to Qin Tao: "It has been in service for nearly ten years, and some of the sound-absorbing tiles on it have fallen off, so now it is rebuilt." Paste."

  The nuclear submarine without the sound-absorbing tiles looks very shabby, just like a fish that has lost its scales, and it looks like huge scars one by one.

  In order to pursue a good mute effect, the surface of the submarine must be covered with sound-absorbing tiles to prevent the transmission of sound. However, this thing is not so tightly bonded to the steel shell, so it is common to drop.

   You can’t feel backward just because Lao Maozi’s submarine sound-absorbing tiles fell off. Americans and British nuclear submarine sound-absorbing tiles have been found to be falling off in large areas, and some can even see large areas of rust after falling off. When it comes to sound-absorbing tile technology, Lao Maozi should be the most advanced, after all, they were the first to study it. As for the island country in the east, because they can't figure out the problem of pasting, they simply fix it with screws, which is another way.

  It is normal for submarines that have been in service for nearly ten years to shed some sound-absorbing tiles. Only after the shedding area reaches a certain level do they need to be pasted again.

  Now the surface of this submarine is full of potholes, and even a large area has fallen off. If only the top falls off, it can be operated directly in the port, but the side and bottom are not good, and it must be repaired in the dock.

  Standing on the dock, looking at this huge submarine, Yang Xi's eyes were full of envy.

Ordinary submarines have a small space, so the sailors sleep in hot bunks, because the sailors work in three shifts, and there are always people sleeping on the beds, so they got such a name. If there are guests, they can only go to the torpedo cabin to make a hammock , Even sailors who sleep in hot beds like to live in the torpedo cabin, after all, it is spacious.

  However, this kind of nuclear submarine is not the case. The huge displacement allows it to have a spacious interior space, which can be divided into single rooms and double rooms luxuriously. Even the most ordinary sailors can live in quadruple rooms.

   "Yes, the outer sound-absorbing tiles are easy to paste, but the inner sound-absorbing tiles are not easy, right?" Qin Tao said.

   Laymen watch the excitement, while experts watch the doorway.

  Most of Lao Maozi's submarines are double-hulled. (It seems that titanium alloy submarines are single-hulled?) By the time they developed into Oscar-class nuclear submarines, Lao Maozi’s technology had already been superb. They laid sound-absorbing tiles on the inner shell, and the inner shell is mainly to prevent internal noise leakage. , the outside is to reduce the reflected signal, even, their latest sound-absorbing tiles, like dolphin skin, can also reduce the resistance of water, and the underwater speed is higher.

   At this moment, Qin Tao’s words are also a pun. You take us to see, are you only going to see the work of masons outside? We have to go in and see!

"Yes, the ones inside are difficult, but the ones inside generally don't fall off very much. The large pieces outside are also caused by a scratch." Kanishevsky said: "Now, I bring Go inside and have a look."

  For the price of a gold watch, it is right to bring these people in to have a look. Kanisevsky greeted the construction workers on the dock, and then took Qin Tao and Yang Xi in.

  Yang Xi was extremely excited. After seeing the aircraft carrier, now he wants to see the submarine. This time, he came out at the right time!

In China, this kind of situation will never happen. After all, the country’s confidentiality policy is very strict. If someone dares to bring a friend to visit, it is estimated that they will have to go in and eat corn bread for a few years. Have to eat peanuts.

  However, Lao Maozi's place is too chaotic.

  As long as they give some benefits, they can leak their country's military secrets!

  (end of this chapter)