In the outer space of the earth, here in the space smelting plant of Galaxy Technology Group, an asteroid that has just been mined from an asteroid has been transported.

Soon, the light continued to converge on the asteroid, the asteroid became dazzling, the temperature rose sharply, and a large amount of metals rich in the asteroid began to melt out.

Half a day passed, and all the metal in the asteroid melted into a huge ball of water, standing quietly in space.

A series of mechanical arms began to clamp pieces of various pure metals to continuously add to it, and at the same time, mechanical arms began to stir continuously, so that these metal liquids were more fully fused together.

Space smelting technology is becoming more and more mature, and it has been able to smelt a variety of steel according to the needs of customers, but this time, the smelted steel is really too special.

The construction of the dragon-class spacecraft 'Emperor Wu of Han' has officially begun, and the headquarters of Galaxy Technology Group has issued official documents to all subsidiaries, research institutes and research institutes of Galaxy Technology Group.

More than 100,000 scientists and engineers were selected to jointly complete the construction of the 'Emperor Wu of the Han Dynasty', which shows the importance that Qin Yi attaches to this dragon-class spacecraft.

There are many core difficulties in building a dragon-class spaceship, such as a powerful anti-gravity engine, a nuclear fusion reactor, and a gravity generating device.

But there is another very inconspicuous, but equally important, thing that is also a difficult point, and that is the keel.

The keel doesn't seem to have any technical content, and the Qinglong-level spaceships on the side of the Galaxy Technology Group have already built many of them, and they have already been very experienced in building the keel, so it stands to reason that there should be no difficulty.

But in fact, on the contrary, the construction of this keel stumped scientists.

The 'Emperor of Han' spaceship is a dragon-class spaceship, and its mass will exceed 100 million tons by design, which is the largest spaceship ever built by mankind, and it is also the most massive spaceship.

100 million tons of mass, many people will say, this asteroid does not have a mass of hundreds of millions of tons, what is strange about this, there should be no difficulty.

But an asteroid is an asteroid and a spaceship is a spaceship.

Asteroids are solid, not to mention 100 million tons, even 10 billion tons, 10 billion tons are nothing, but once the mass of the spaceship reaches hundreds of millions of tons, because its interior is empty, it also means that it needs to have a strong keel to support it.

In particular, this dragon-class spacecraft will also be equipped with a gravity generator, and the core of the nuclear fusion reactor here, where the gravity is very amazing, although scientists can control its influence as much as possible.

However, this will still put a huge pressure and test on the overall structure of the spacecraft and the keel of the spaceship, and the design and arrangement of this keel cannot be copied from the keel design of the Qinglong-class spaceship.

It had to be redesigned, from the keel material, the structure of the keel, the design and arrangement of the keel, and the placement of the core components on the spaceship, etc., all of which needed to be rebuilt and redesigned.

With a huge mass of hundreds of millions of tons, this has extremely strict requirements for each keel on the spacecraft.

What's more, the engine installed on the dragon class spaceship is more powerful than the engine of the Qinglong class spaceship, and the thrust it has is even more terrifying.

Strong strength means strong support, which is even more demanding for the keel, without a strong enough keel, the ship's engine is enough to tear the ship apart.

The mechanical arm is still stirring the huge metal liquid, and all kinds of pure metal blocks are constantly transported by the mechanical arm, and then melted away and fused into a large metal liquid ball.

A large piece of gold, weighing dozens of tons, emits a charming light and color under the refraction of the sun, but soon, the gold is melted away and becomes a small water ball, and then the small water ball is slowly integrated into the huge metal liquid ball.

The mechanical arm is constantly shortening, the sunlight is constantly changing, the inside of the liquid metal ball is constantly flowing, and all kinds of metals begin to fuse perfectly with each other, gradually forming a new alloy material - obsidian material.

Obsidian material is a new type of alloy specially researched by the Institute of Materials Science of Galaxy Science Research Institute, which has a characteristic, that is, it is expensive and requires a certain proportion of gold.

The use of gold to study emerging alloy materials is also a new discipline that is now emerging, gold used to be very expensive, even if there are gold-related alloy materials, no one will be stupid to use gold to make alloy materials, the cost is too expensive, there is no competitiveness at all.

But now it is different, with the vigorous development of the asteroid belt mining industry, more and more gold is mined from the asteroid belt, and the global gold price is falling again and again.

The use of gold in the industrial field is more valuable than its use as a symbol of wealth, and a variety of gold-related alloys are constantly being studied.

This obsidian material is one of the most representative materials.

This material is lightweight, hard, and supportive, making it ideal for use as the keel of spacecraft, especially for dragon-class spaceships.

The keel of the Qinglong-class spaceship is enough to use general alloy materials, and the keel of the dragon-class spaceship must use special alloy materials to ensure the overall strength and support of the keel, so as to support the huge mass of the dragon-class spaceship.

"If we were to build a spaceship that was bigger than a dragon-class spaceship in the future, what material would we use for this keel?"

In the smelting plant, Ren Qing, the head of the Materials Science Research Institute of the Galaxy Science Research Institute, asked Yang Hongyan beside him.

"I don't know, this spacecraft is getting bigger and bigger, the mass is getting bigger and bigger, the power is getting stronger and stronger, and the requirements for the keel are getting more and more."

"I guess we'll need degenerate materials in the future."

Yang Hongyan thought for a while and said, he came here this time, he also wanted to see in person whether the material of this keel could pass the test, the keel is the core of a spaceship, and it is also the thing he is most concerned about now.

The keel of the spaceship has been trapping everyone's progress for several months, although the boss Qin Yi didn't say anything, but he still remembers the first time the boss raised money with him, which shows that Qin Yi attaches great importance to this matter.

"Degenerate material?"

"I've been researching degenerate materials, and my boss has given me a lot of information, but until now, there's still no way to study it."

When it came to degenerate materials, Ren Qing couldn't help but frown.

The life of the Institute of Materials Science is not easy, and the various research institutes of the Galaxy Science Research Institute will ask him for any new materials they need.

For example, building spaceships, building anti-gravity engines, etc., the materials required are different, and there are many requirements, so that the materials research institute has been in a high-pressure state.

This time to build the 'Emperor Wu of the Han Dynasty' spaceship, starting from the manufacture of the core anti-gravity engine, Ren Qing's was often annoyed by the Yang Hongyan in front of him.

The thrust of this dragon-class spaceship is so powerful that if there are no strong enough materials to make it, the powerful force will tear the engine apart.

Finally got the matter of engine materials, and now Yang Hongyan has come to urge the keel material again, the requirements of this keel are also very many, to withstand the mass of hundreds of millions of tons, and to be able to withstand the strong pressure released by the powerful engine of the spacecraft, the burden of building the keel material has fallen on his shoulders again.

Ren Qing can't wait to be able to study the degenerate materials now, once there are degenerate materials, I don't care if you are an engine, or you have to build a keel, or if you want to build a billion-ton or 10-billion-ton spaceship, I can send you away with all kinds of materials.

"Take your time and don't rush, at present, we don't need degenerate materials for the time being, but we will definitely use them in the future, not to mention anything else, just the engine and keel of this spaceship, we will definitely use degenerate materials in the future."

Yang Hongyan smiled and said.

Looking outside, at this time, part of the huge liquid metal ball has begun to cool and solidify, and the mechanical arm has begun to clamp this part of the cooled and solidified part and slowly shape.

The Dragon-class spaceship is a spaceship used for interstellar navigation and interstellar colonization, and in terms of design, it is very large, with a length of more than 10 kilometers, a height of 3 kilometers, and a width of more than 5 kilometers.

For such a large spaceship, in addition to the special requirements for the material, each keel must be made of a single cast as much as possible to increase its load-bearing capacity.

As the mechanical arm drags, the front part has completely cooled and solidified, but the back part is connected to the metal liquid ball, and the metal liquid is slowly dragged out of the huge metal liquid ball.

After a few hours, a huge golden rod appeared in the void, this long golden hoop rod, it was just the embryo of the keel, and a spaceship came and dragged it to the side of the Dragon's Lair Space Factory.

The Dragon's Nest Space Factory will further process it, using the whole casting to process it into a keel, and each keel needs to be customized separately from smelting to shaping and processing.

PS: Ask for tickets, all kinds of ~~