Chapter 244: Steel pipes with higher pressure resistance
Dr. Bull smiled, and simply shook hands with Qin Feng and the others, it was inappropriate for him to appear on the oil pipeline procurement project, and it was easy to arouse associations from the outside world, but fortunately, there were not many people in the east to receive them, and there were no reporters or anything like that, after the big guy simply exchanged politely, he walked up to the convoy next to him.
When a person of Kamal's level came, of course, customs and other procedures had to be simplified, and when he saw the convoy that greeted him, Kamal was very curious: "This is a Hummer?" ”
"No, it's our warrior car." Qin Feng said: "This kind of car is most suitable for use in desert areas, with strong mobility and stability. ”
The Mengshi car is still in low-speed production, with a monthly output in single digits, and it is mainly used for testing after production, but with the completion and production of the steel plant project, it is time to enter mass production.
Although Yilak fought the eight-year war, impoverished the country, and owed a lot of foreign debts, he spared no effort in developing the army's equipment, and now that he has such an opportunity to show it, of course he cannot let it go.
Therefore, Qin Feng asked Pingwang Motorcycle Factory to drive all the four newly built vehicles over, just to receive guests.
Intrigued, Kamal circled around the car before he sat in, and when he got in, his eyes lit up again.
This interior is very nice!
Everywhere you can see with the naked eye, it is wrapped in leather, which is very soft to the touch, reminiscent of a woman's skin......
"This is a model specially for senior officers, if it is an ordinary car, or mainly steel, it can avoid burning and so on." Qin Feng looked at Kamal's appearance and knew that his design was perfect. The interior of this car was rushed out last night, wrapped in leather, and it is comfortable.
"If it's a special custom, we can also make a longer model, the interior will be more luxurious, and at the same time, no matter what the version, this car can resist small-caliber rifle shots, and the protection is first-class."
After all, this is the foundation of the military vehicle, and it must be bulletproof, after all, it is obviously an extra-large SUV, but the weight is twice as heavy as that of an SUV of the same level, and the extra weight is of course added to the protection.
"Well, yes, yes!" Kamal nodded repeatedly.
Dr. Bull also got into the car and sat side by side with Kamal, while Qin Feng sat in the co-pilot of the car.
"Mr. Qin, how did you make this kind of oil pipeline?" Dr. Bull spoke.
"We have 80,000 tons of hydraulic presses, and we press them out on it."
80,000 tons, pressed out! Just listening to this production process, you know how against the sky!
"No wonder it can withstand the pressure of 300 megapascals, it turned out to be pressed out with an 80,000-ton hydraulic press!" Dr. Bull was very excited: "It can withstand no less chamber pressure than the Barbados cannon, and the range and power will be stronger than the Barbados cannon!" ”
Gilard Bull, a French-Canadian, was born in Ontario, Canada in 1928, and has been a prodigy since he was a child, and he got a doctorate from the University of Toronto at the age of 23, shocking the whole of Canada, the youngest doctor in history!
Dr. Bull has a bright future ahead of him, and when he gets his hands on the blueprints for the Paris Cannon, he finally finds his dream: to build a super cannon and go into space in the easiest way possible!
That's right, all kinds of artillery are made to make money, and Dr. Boole has a dream of aerospace in his heart.
While the world's aerospace elite are trying to develop more advanced rockets and use rockets as a tool to go to space, Dr. Boole is concentrating on artillery, and he believes that it will be cheaper to explore space with cannons.
In this era, many science fiction also have the setting of flying to the moon with cannons, and they will not consider whether astronauts can withstand the overload when the cannon is launched. There are even more brain-opening ones, which directly hollow out the earth and use it as the barrel of a super cannon to launch a super spaceship.
Dr. Bull was at his peak and received a lot of funding, and by the age of '65, he had already begun to implement his plan in earnest, and although there was no way to build a new cannon, he could use the remnants of World War II: naval guns!
He welded two 424 mm cannons together to form a 36-meter-long super cannon, also known as the Barbados cannon because of the experiments in this part of Barbados.
After many tests, this cannon can launch a 90-kilogram warhead into space at an altitude of 180 kilometers, and a 100-kilogram shell can be launched at a distance of 4,000 kilometers if it is attacked from the ground.
The range and power of this cannon are much more powerful than the Paris cannon of the year, but Dr. Boole is still not satisfied, after all, there is no point in hitting a warhead of tens of kilograms and 100 kilograms, he wants to make a bigger cannon and fire heavier projectiles!
Even if a Scud missile has a warhead that weighs a ton, his supercannon is meaningless if it can't fire a projectile that is heavy enough.
However, when Dr. Bull continued his efforts, he was abandoned by the United States and Canada, and began to wander around the world.
As for the reason, it has something to do with Dr. Boole's character, this guy is very extreme, although he can engage in scientific research, but he will not behave in the world, offend all the financial fathers, and want to get funds to research super cannons?
Dr. Bull began to wander around the world, in order to raise money, he developed a 45 times caliber 155 mm cannon, sold it worldwide to make money, and in the late eighties, his talent was finally introduced to the attention of Yirak, after all, Silly Damu also likes super cannons, and there is money, the two sides almost hit it off, and the Babylon cannon project is on the agenda.
Of course, Dr. Bull would not have known that this collaboration would eventually kill him.
If you want to build a super cannon, you need to have a suitable barrel, and the industrial strength of Yilak is very poor, and it is impossible to make such a barrel, they can only order it from abroad. However, the whole world is watching very closely, how can you hide from the sky and get the barrel?
Just when they were worried about this matter, Dongfang sent charcoal in the snow. When the performance index of this thick-walled seamless steel pipe was obtained, Dr. Boole immediately asked to come to the East to have a look! Kamal came along, after all, it costs money to purchase such steel pipes.
At this time, hearing Dr. Bull's excited words, Qin Feng immediately poured a basin of cold water: "Dr. Bull, what are you talking about?" I don't understand, what we provide you with is a high-pressure oil pipeline, which has nothing to do with artillery or anything, our Pacific Group is a private enterprise, and we never make cannon pipes! ”
Dr. Bull blushed, and then his face turned red: "What do you mean by that?" We're here for the barrels, you don't understand? ”
After so many years, this guy's temper hasn't changed at all, he is still so easy to get angry, Qin Feng laughed secretly in his heart, he didn't care, after all, Dr. Bull was still with Kamal. This guy is a good man.
Sure enough, Kamal immediately said on the side: "Dr. Bull, we are not here for the cannon pipe, we are here for the high-pressure oil pipeline, Mr. Qin is right." As long as the parameters meet our requirements, it doesn't matter whether it is an oil pipeline or a gun pipe. ”
Dr. Bull realized that it was difficult to procure suitable equipment from the world, and since he accepted the invitation of Yirak to start developing the Babylon cannon, he had been worried about the procurement of raw materials.
What barrel to worry about yourself, as long as the performance can meet the needs, that's fine!
"Okay, then the high-pressure resistant oil pipeline, this kind of pipeline can withstand 300 megapascals of high pressure, which is already very good, but I don't know, do you have a more high-pressure resistant pipeline? Our...... In a certain section of the pipeline, the pressure may be higher, as long as there are two or three sections that are more resistant to high pressure. ”
Qin Feng laughed secretly in his heart, after being beaten by society, this Dr. Boole should also learn to disguise his emotions, if it is still the same kind of two-pole as before, it is estimated that even Yilak will not stay long, and he will have to be driven away. After all, the two sons of the boss over there are not tolerant of people.
The pressure of 300 megapascals is actually enough, after all, there are only tank guns with high rifle pressure, which need to reach more than 500 megapascals, for example, the famous RH-120 tank gun of the Germans, when firing armor-piercing shells, the internal chamber pressure reached 510 megapascals, which is at the cost of sacrificing life, conventional howitzers, the chamber pressure is more than two hundred, this Dr. Boole wants a barrel with a higher chamber pressure, and only two or three sections are needed, which is obviously to be arranged at the bottom of the barrel.
Although when it comes to the pressure resistance value, the whole cannon is the same, but in fact, different parts of the cannon, the pressure resistance value is not the same, when the propellant has just been ignited, the chamber pressure is the highest, as the shell accelerates forward, the volume of the high-pressure gas behind is getting larger and larger, and the chamber pressure will be smaller and smaller. By the time the barrel is discharged, the chamber pressure is reduced to a minimum.
Therefore, if you look at the shape of the barrel, you can find that many barrels will be thinner the more forward, and the inner diameter cannot be changed, so it is the result of the thinner and thinner walls of the barrel, because the further forward, the lower the bore pressure will be, and it is not so thick.
The front 300 megapascals of bore pressure is sufficient, and if the back can withstand more bore pressure, it means that more propellant can be stuffed, which is Dr. Boole's favorite.
In the field of 155mm howitzers, Dr. Bull made a revolution with a 45-fold barrel, and successfully increased the range of the 155mm howitzer from the previous 18.1 kilometers to 39 kilometers, which sounds very good, in fact, in addition to the higher muzzle velocity brought by the lengthened barrel, it is just an increase in the chamber, an increase in chamber pressure, and a new design of the jujube nuclear bomb, this kind of shell is Dr. Bull's masterpiece, however, no one in NATO likes to use.
Because this kind of jujube nuclear bomb is difficult to process, the cost is high, and it is inconvenient to automatically load, even if Dongfang uses a full set of Dr. Boole's technology, overcomes all kinds of difficulties, and produces the jujube nuclear bomb, which is not used for its own use, but is sold, and it is still a conventional cylindrical ammunition for its own use.
However, for the cannon, if you want to increase the firing range, there seems to be no other way than to increase the bore pressure.
"If we want a higher pressure pipeline, we can only use electroslag remelted steel, which should be able to withstand pressures of more than 500 megapascals, but this steel is expensive and complex to manufacture, and the price of the pipeline will be high."
"Money is not an issue." Dr. Bull said it lightly, and Kamal on the side looked slightly embarrassed.
If it was true that money was not a problem before the war, but after eight years of fighting, Yilak would have been beaten into a poor egg, not only had his foreign exchange reserves been used up, but he also owed 80 billion US dollars in foreign debt, and the only gain was to have a strong army.
They are very interested in the Super Cannon, because this cannon can hit the Kingdom of David, and it can fire all kinds of cannonballs that they want to fire, and if they have mushroom shells in the future, they can also fire this weapon.
But how much does this super cannon cost? If it's too expensive, they probably won't be able to support it.
However, after years of experience, Kamal did not cry directly poor, and the price will be talked about next, first look at the performance.
The car drove into the steel mill and went straight to the tallest plant, because the warehouse outside had not yet been built, so the produced steel pipe was placed directly next to the 80,000-ton die forging press.
Everyone got out of the car and walked into the factory, all of them were stunned by the huge eight-story machine.
"When I was in the United States, I saw their more than 30,000-ton hydraulic press, and this is the first time that this is 80,000 tons." Dr. Bull also sighed: "This is the world's largest tonnage hydraulic press, and even the hardest steel will be kneaded into the corresponding shape under this machine like kneading dough." ”
"Yes, all shapes can be used, and under the action of our special molds, it can also be made into seamless steel pipes, which have been beaten with 80,000 tons of pressure, and the quality is the best in the world."
"That's right, the best in the world." Dr. Boole nodded, as an artillery genius, he knew the various processes of making cannon barrels, however, none of them were as easy as in the East!
"There's a stack of barrels over there...... No, oil pipelines? Kamal asked, pointing to the thick tube on the side.
"Yes." Qin Feng nodded: "Let's go, I'll take you over to have a look." ”
With an inner diameter of 800 mm and a wall thickness of 195 mm, the outer diameter of the entire pipe is more than one meter.
After the cold drawing process, and then through the tempering and calibration processes, the surface of the steel pipe looks silvery, with a metallic color, very beautiful.
Dr. Bull took a deep breath, and at this moment, his gaze became hot.
Even in Barbados, he built nothing more than a cannon of 424 mm caliber, and now, with a barrel with an inner diameter of 800 mm, he can build a super cannon of 800 mm caliber! This cannon can launch hundreds of kilograms of shells into space, and it can also hit tons of warheads for thousands of kilometers!
This cannon barrel is for him!
He walked over and stroked the barrel of the cannon with his hand as if he were caressing the soft skin of a lover, his eyes were full of tenderness, and his heart began to beat violently and involuntarily.
The outer wall is smooth, the inner wall is also smooth, and after going back, as long as it is simply polished, it can be used as a gun barrel, as for the bore pressure that can be withstanded...... It should also be able to meet the standard, after all, it is an 80,000-ton hydraulic press to make it, which is equivalent to directly using 80,000 tons of pressure to come to a self-tightening process.
There are many schemes for rifled guns for small-caliber artillery, with rifling inside, and the shells rotate and fly out, keeping the warhead stable until they hit the target, while large-caliber guns, rifled guns are not suitable, not only is it not easy to engrave rifling, but also because the wear is too great, after hundreds of shells, the rifling is smoothed, so there are more schemes for using smoothbore guns, the super cannon designed by Dr. Boole feels that the speed of the shell flying out is not enough, and he will also design a rocket-boosted shell, and fly out directly with the bullet wing to stabilize it, There is no need to use complex rifling.
Even if you don't have two or three tubes with higher pressure resistance, you can use just these!
"We need ten steel pipes." "The kind of steel pipes with higher pressure values requires three," says Dr. Boole. ”
"If it's ten, we can give you a wholesale price." Qin Feng said: "You should know that the lowest preferential price of this kind of steel in the world is 50,000 US dollars a ton, and our pipe is six meters long, about 2.5 tons per meter, so that one pipe is 750,000 US dollars, and ten pipes are 7.5 million US dollars." ”
Hearing this, Kamal breathed a sigh of relief, they can still afford the money, and it is also an international preferential price, you know, because they can't purchase openly, the price they generally pay is much more expensive than the international standard price, or even two or three times more expensive.
Orientals are still interesting enough.
"However, the electroslag remelted steel you want is much more expensive." Qin Feng said: "The difficulty of manufacturing this kind of steel, you should know, our factory does not produce this kind of steel, it needs to be purchased, the price we produce is at least 500,000 US dollars a ton, so that one pipe is 7.5 million US dollars, three is 22.5 million US dollars, plus the ten pipes, a total of 30 million US dollars, these are FOB prices, we are responsible for transporting to the port, and then the freight will have to be paid by yourself." ”
The remaining three are expensive, and one is equivalent to these ten! The price went from a few million to $30 million! Kamal's face was slightly unsightly, and he looked at Dr. Bull, "Dr. Bull, can we just use this kind of steel pipe?" ”
"No, of course not, we make a super cannon, and the lower half must have a steel pipe with a high pressure resistance!" Dr. Boole immediately shook his head: "The higher the chamber pressure below, the more our propellant can be loaded!" In this way, our shells will be able to hit farther or with heavier warheads! Even mushroom bombs......"