Chapter 82: Firepower is king

"Qin Guan, what do you think about our next-generation tanks?" In the 8640 unit, after dinner, Qin Guan, Zhu Lao and others sat again in front of a large table and started a new conversation.
Zhu Lao looked at Qin Guan with expectant eyes. It was obvious that Major Yang had already communicated with Zhu Lao, and Zhu Lao valued the ideas that Qin Guan put forward.
Moreover, at present, the negotiations for the introduction of Leopard-2 tanks have reached a deadlock. Hansland hopes that Hans will import thousands of vehicles before discussing the issue of technology export. For Hans, it can import up to ten vehicles and lack foreign exchange!
Since Qin Guan can get this American-made Sheridan tank with special functions, can he get a Leopard-2 tank for everyone to study?
It was this idea that Zhu Lao made, but now, Qin Guan has just had the experience, and his thinking has become more smooth.
Industrial system, industrial technology, these developments are the most important, just relying on Qin Guan himself to exchange equipment in the weapon system, maybe, when his system is upgraded to be extremely powerful, he will be able to exchange for a complete system. The equipment of the whole division comes, but now, it is the most important thing to improve the industrial level of one's own side and enable one's own side to be able to produce a large amount of equipment through production.
Thinking of this, Qin Guan had already thought of something.
"For a tank, the most important thing is its firepower." Qin Guan said: "Our next-generation tanks, whether they plan to use 120 mm or 125 mm, are inseparable from the manufacturing technology of the barrel. Among them, electroslag remelting steel and barrel self-tightening technology are the most important."
When it comes to tank guns, these technologies are inseparable.
Electroslag remelting steel is a method of smelting using the resistance heat generated when electric current passes through the as a heat source.
In other words, the purpose of re-smelting steel is to increase the purity of the metal and improve the crystallization of the ingot. The steel remelted by electroslag has high purity, low sulfur content, few non-metallic inclusions, smooth, clean, uniform and dense surface of the ingot, and uniform metallographic structure and chemical composition.
This technology actually existed in the 1950s, and Xiong Guo also had it, but there was no advanced electroslag remelting steel.
The quality of electroslag steel ingots depends on the reasonable electroslag remelting process and the equipment conditions to ensure the electroslag process, and this kind of steel is an inevitable choice for the manufacture of tank guns. Look at later generations and you will know that almost all gun barrels are of this kind of technology.
As for the self-tightening of the barrel, it is to twist the barrel with a hydraulic press or other machinery. Due to the huge torsion force, the inside of the barrel produces a layer of plastic deformation, giving the barrel a huge inward stress. This stress was originally enough to make the artillery. Disintegrated, but because the artillery steel is quite flexible, the artillery was held in place.
This stress tightly pulled the artillery into collapse, but was pulled by the tensile properties of the artillery itself, so there was a high pre-stress inside the artillery, which could reach hundreds of megapascals. When the artillery was launched, the gas not only pushed the ammunition forward inside In addition, there is a lot of force to open the gun barrel. This force is opposite to the prestress inside the barrel, so the barrel self-tightening process greatly improves the gun’s ability to withstand chamber pressure.
Both methods allow the tank barrel to withstand high chamber pressure, and the result is that the shell has greater kinetic energy when it flies.
When Qin Guan proposed these two technologies, Zhu Lao frowned.
Qin Guan did not directly refer to the Leopard-2 tank, but directly mentioned the artillery. After all, for the tank, there is no suitable artillery, everything is useless, without these two technologies, then don't count on production.
The layman looks at the excitement and the insider looks at the doorway. Qin Guan said this and pointed to the most painful place. You said that the armor is not thick enough and the engine is not strong enough. Tank soldiers can tolerate these. Wearing the enemy's tank armor, the tank soldier is still smashing!
"Yes, these two technologies are the most important. However, we may not be able to achieve this level at home." Even though Zhu Lao always advocates self-research and always thinks that foreign help is unreliable, but Zhu Lao also knows that relying on domestic The research and development of one's own level is far away.
"But if we import, we don't have so many foreign exchange reserves, and we don't know where to import from." Zhu Lao said.
It is not easy to introduce these technologies!
"It can be imported from Niu Country." Qin Guan said: "The 105mm rifled gun developed by Niu Country has been used as standard equipment by their entire Western Group."
The 105mm rifled gun was the standard gun of the entire western group in the entire era. It was powerful enough to deal with the threat of the bear country. It was a fairly mature gun.
"We negotiate with Niu Guo to introduce these rifled guns, and at the same time, introduce various processing equipment for the production of these rifled guns, including electroslag remelted steel related equipment for barrels, precision deep hole drills, and high-speed rotary forging equipment for the production of armor-piercing projectiles. Wait, as long as these equipment are available, we will have technical reserves when we study our own new generation of tank guns."
What Qin Guan is talking about now is a historical project in the previous life. The introduction of the 105mm tank gun is not an isolated project, but a very complex system. Relying on this system, the 86-type 100mm smoothbore anti-tank gun, the 89-type 120mm smoothbore anti-tank gun, and the 125mm tank gun are all developed on this basis. Needless to say, tungsten alloy and uranium alloy armor-piercing projectiles .
What we want is a larger caliber tank gun, as a pre-research for the next generation of tanks. Now, looking for the West, looking for the cattle country to introduce the main equipment of active service, and at the same time, it is not an advanced technology 105mm gun. This is difficult. It will be much lighter.
When Qin Guan said that, everyone present nodded: "Yes, this is a good method, but this method still requires us to pay a lot of foreign exchange reserves. Our country has no money!"
I wish the old man a little helpless. The introduction of dozens of guns does not require much foreign exchange. However, if the entire system is to be introduced, the Niu Guoren may not export, or they may open their mouths so that the country cannot bear it. In the end, the project still fails. .
"We can exchange technology." Qin Guan said: "For example, if we use the design drawings of a 1500 horsepower engine for technology exchange, it will be much easier."
Niu Country’s tank artillery technology is good, which can greatly improve it, but Niu Country also has their weaknesses. Look at the challenger tanks of later generations. The Chobham armor makes it weigh more than 60 tons. , But only has its own 1200 horsepower diesel engine. In contrast, Hans State is now 1500 horsepower!