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Whether a battleship's combat effectiveness is good enough, in addition to a strong enough hull, the key is to look at the quality of its main gun. In many cases, the hull must accommodate the main gun and turret in design, which is a principle that giant ship cannonism must abide by...

Naturally, the "Taishan-class" battleship also needs to fully consider these issues. However, the difference is that the initial model of the battleship was the first thing Zhu Bin simulated with a computer after seeing the American battleship. He is not a professional, and there are inevitably many deviations, but they are mainly reflected in the details of some weapons, equipment and power systems.

In general, such as the coordination of the hull, defense standards, stability, structural rationality, etc., they are very advanced. After all, they are masters who have personally modified spacecraft. How to make full use of space, how to ensure structural strength and rationality and coordination to the greatest extent, with the convenience of virtual modeling, relying on experience and continuous repairs on drawings than contemporary ship designers, and even after building one ship, it will improve the efficiency of tens of thousands of tons. It is also very easy to flexibly divide it into hundreds of modules in sections.

But there is one thing that Zhu Bin cannot solve, that is, the research and manufacturing of turrets and main guns, things that are not within their professional scope, and the generation difference is too large. Therefore, in the past four years after the establishment of the Sea Equipment Institute, it has combined the hard work of professionals from Germany, the United States and China, learned from the designs of many countries, combined with their own advantages of metallurgical capabilities and design verification conditions to create a suitable naval gun. Even before the hull was built, the samples were first made and the test began.

Chen Shaokuan and Jiang Baili were of course very eager to see the main weapons and equipment of the battleship in advance. As Zhu Bin arrived in another workshop, he immediately saw a main gun that was carrying out the final rifling work. Standing at the tail of the gun barrel that was more than one person tall. Ishu. The two had to raise their heads to see the whole picture. The 18.7-meter-long steel giant was shocking from the bottom of their hearts!

This was the first time Jiang Baili had a close contact with the most fierce killer weapon in the world. He stretched his head and looked at the rotating and winding rifle inside the cannon barrel that could almost be put into a person. He was stunned and exclaimed: "What a good guy! When such a fierce thing is fired, I really don't know how domineering and powerful it is! Looking at it, there must be about 100 tons, how can we make such a big guy?!"

Chen Shaokuan said with an admiration: "It is never easy to produce this thing. It can be said to be the pinnacle of today's industrial technology!"

You can guess it by looking at the various large equipment in the workshop.

Making giant cannons is really not something that can be done with just a blow, it requires a very comprehensive industrial foundation. It requires sufficient steelmaking and metallurgical manufacturing technology to build a large enough steelmaking furnace and a pure enough alloy, like the cannon in front of you. It weighs 98 tons on its own, and it weighs about 140 tons for manufacturing a crude embryo. This requires at least four electric slag remelting furnaces, two 200 tons day trucks, 300 tons, 1000 tons, 3000 tons, 3000 tons, or even 5000 tons of water pressure forging presses and edge smashers, etc.

With the world's leading metallurgical technology, all special steels and alloys for Guangming Steel Plant use electroslag remelting furnaces to serve, and the alloy quality is much better. It is also very costly to increase the nickel chromium content and dopant trace elements, which enhances the alloy strength again and is already higher in raw materials. Naval guns at the same weight are stronger, have a longer life, and can withstand faster and larger charges of launch.

After the 140-ton crude embryo is milled into a relatively uniform long stick like a dough kneading machine. Annealing and removing stress, cutting off the unnecessary parts at both ends, drilling holes in a large drilling machine, preheating, forging to the designed length, then annealing and removing stress, polishing the outer layer boring and milling the inner wall, and then applying a large three-dimensional heat treatment furnace to perform surface hardening.

These steps are simple, but it is really not easy to do. The large heating furnaces, annealing furnaces, drilling machines, milling machines involved in the middle can only be manufactured in a few countries, and the surface hardening process is basically not out of the box. Like the formula and carburizing process of special armored steel, they are regarded as the treasure of the secret. For example, the laser surface hardening treatment process that Zhu Bin exclusively masters is the only one in the world.

A gun barrel is not a straight tube from beginning to end. In order to withstand the impact of huge amounts of ejected drugs, two casings need to be reinforced on the outer layer, and at least four muzzle casings are required.

After all the processing is strictly followed according to the procedures, they are carefully assembled with the help of a large hoisting machine, that is, several gun barrels are put into one layer by layer. The general manufacturing process uses heating and expansion, and then automatically tightens and squeezes and tightens after cooling. If the technical level cannot guarantee strength, steel wire must be wrapped on the outer layer of the gun barrel. For example, the 410mm main gun of the Japanese "Nagon-class" battleship, and the outside of a gun barrel must be wrapped with steel wire up to 300 kilometers! It is conceivable to produce!

Zhu Bin doesn't have to work so hard here. Electric slag remelting, high-strength alloy materials, better hydraulic forging treatment process, and laser surface hardening treatment, the strength of the barrel is already domineering enough. This is not finished yet. There is more hydraulic self-tightening treatment process than others. Then, each part of the barrel is adjusted in the ultra-low temperature treatment tower and the high-temperature treatment furnace to achieve a higher level of quality, and finally it is socketed and molded.

After that, even if the barrel embryo is built, it is not finished. Then, the outer layer is turned out to be turned out to be standard in the design, and the inner cavity is turned out to be standard in the last time, the bore is carved and the chrome-plated hardened. This is considered the barrel of the barrel is completed.

The total cost of manufacturing such a gun barrel is almost equivalent to a gunboat, and the entire turret weighs thousands of tons, which is equivalent to a large destroyer, but its lifespan is only a few hundred shells, which is so expensive!

Even with the acceleration of many advanced technologies, this specialized cannon production workshop cannot make many pipes in a year. They are mainly responsible for the manufacturing of cannons above 203mm caliber. Most of the small and medium caliber ones have to be manufactured in several other manufacturers.

Chen Shaokuan was not allowed to care about the details. He stared at the giant figure with his eyes and could hardly move his legs. He wished he could carry it up and put it on a turret immediately. He erupted in anger at the ocean.

It took him a long time to remember that it seemed that Zhu Bin asked him if he wanted to see the test shot, and quickly asked again: "Is this the first gun barrel?"

Zhu Bin shook his head: "Of course not, this is the fourth one. The first three have been tested separately. Now they have been installed in three different places and are about to conduct test-firing verification. If you are interested, let's take a look?"

Isn't it too much to see the production line, I can't see the grand occasion when it was launched with my own eyes! Now, as Zhu Bin turned around again, he arrived at the small mountain Chewel Mountain not far from the Giant Tower of Gulouzui. The railway and giant wall around Guzhenkou Bay lead here, and a turret test site was set up on the top of the mountain.

On the top of the mountain less than a hundred meters high, a large open and airy factory towered, facing the sea, facing the open and thick stone foundation, a majestic fort overlooking the water surface, in the center. A 406mm cannon has been installed, and the muzzle points to the Lingshan Island mountain range fifteen kilometers away.

Zhu Bin introduced: "In order to fully test the performance of various cannons, we have established experimental fields here, Langya Taishan and the Xiangzi Gate on the beach, testing the various performance indexes of artillery at ranges of 10 kilometers, 15 kilometers, 20 kilometers and 30 kilometers respectively."

Chen Shaokuan stood in front and looked at the telescope from a distance. He could clearly see five huge targets clearly marked on the hillside of Lingshan Island, about 20 kilometers away. The diameter was estimated to be 50 meters long, and it was very eye-catching. The pits on it were bumpy and scarred, and it was obviously many times that had been bombarded.

A bunch of madmen from the Artillery Design Institute saw that the Minister of the Navy and President Lu University came. I immediately knew that there was a chance to set off the artillery, and more than ten people rushed up. I opened my mouth and rubbed my hands and smiled and suggested: "Are you two leaders here to inspect our artillery research results? It's very simple to know, come and have a shot!"

Why does this sound so obscene and ambiguous? Zhu Bin twitched the corners of his mouth when he was in his forties or fifties, but he didn't shout at all. He waved his hands randomly: "Then let's have a shot and let the two commanders see your work results."

"Okay!" Shen Chongji, the leading domestic top cannon designer, waved his hand, and a group of old, young and young researchers rushed forward, manually calibrating the angle and height of the cannon with all his hands. The shell expert Liu Donglai personally rolled up his sleeves and led several young and strong young men to transport a 1,200 kilogram-free armor-piercing bullet with a small cart, shaking the robotic arm to push the cannon chamber, stuffing three rolls of natural silk-wrapped launchers one after another, closing the latch, each with headphones, staring at Zhu Bin with his eyes.

Zhu Bin's mouth twitched again, and he cursed the young and old people in his heart, and they were so passionate about firing cannons. Don't you think about how expensive this shell is! A serious cannon is 10,000 taels of gold! I dare not say that even such solid test shells cost 5,000 dollars! And a complete version of the grenade costs at least more than 10,000 dollars. How expensive is it to fire a fucking sound!

However, when it comes to this, he has to grit his teeth and hold on. He can't lose the price in front of the two bosses, right? He personally divided the earmuffs for the two of them and hid far away in a room with thick bulletproof glass dozens of meters away. Seeing that everyone was hiding in the bunker, a small flag was raised outside to warn the passing ships, and then Shen Chongji shouted: "Let's fire!"

Chen Shaokuan's fingers trembled, and he suddenly pressed the electric switch. The thick gun barrel butt sank down. With a loud "boom" sound, the entire mountain seemed to have hit a huge hammer with a thousand tons, and it suddenly shook. People in the cover "buzzed" in the heads, as if they were hit out of thin air, and their brains were shocked to pieces and their hearts stopped beating!

The steel cart that supported the giant cannon fell for more than ten meters. With the giant hydraulic buffer and pulling spring, a piece of air visible to the naked eye rippled like water waves under the hanging hill, a piece of sand and dust was hung down by the gun wind to the sky!

The huge flame rushed out more than ten meters away, and the slender armor-piercing bullets, which were much taller than adults, whistling out, as if a train passed through a tunnel at a high speed, pulling out a deafening roar, soaring into the sky and rushing towards the mountain wall twenty kilometers away at nearly three times the speed of sound!

Half a minute later, I saw a huge round target bursting out of smoke and dust on the distant mountain wall. On the other hand, the rake wall built with 500mm thick steel plate pierced a large hole as thick as a water tank!

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