Superman, the Man of Steel, female, 6 years old!

Naturally, the cost is so low.

Only then can it support Anna and her team’s large-scale outer space farm in the future, as well as the super plan of a giant space city.

You know, if things don't go well in 20 years...

The giant space farms and space cities needed on Earth to provide for human life require more than just one or two.

At the very least, there must be tens of thousands of them.

point.

Therefore, these plant warships can only serve as a supplement to human food production and living space at most. The more than 4000 artifact-class warships cannot all be wasted and only used as future immigration ships or living spaces for humans.

So what if the cost of raw materials on Earth cannot be brought down in the end?

That would mean selling out all of humanity. They wouldn't be able to build... thousands of space farms and an unknown number of giant space cities in the future.

And the even larger Dyson sphere, or the future Dyson ring project, which aims to provide energy for all mankind's space cities and farms...

When the cost is impossible, it is naturally out of the question for humans.

So the final cost cannot be accurate to the cent. Under the supervision and optimization of the great actuary Anna, all raw materials and costs must be controlled to the accuracy of 0.001 cents to meet her final requirements.

……

……

After Anna's mine started operating, other raw materials and her own customized machines were naturally transported in continuously through the vine-version space gate.

Although there is no air in outer space, there is no need to worry about oxidation and rust.

However, in addition to the outer shell and the main body, Anna also has planting trays, internal frames, space station tracks and pipes inside the space farm. These things still need to be treated with the most stringent anti-rust and anti-corrosion treatments.

However, even on these space station-level things, Anna did not use high-end materials such as high-grade stainless steel or aerospace titanium alloys.

Her basic idea for building this space farm was to use the cheapest and most readily available steel and alloys for everything, and to make everything as cheap as possible.

After ensuring that the space farm can operate normally, all that is needed is the simplest structure and raw materials.

Anyway, she is not going to build a five-star hotel or a luxury flagship store in space, and future humans will not live in the farm while it is used for planting and daily maintenance.

So when it comes to rust and corrosion prevention, all you have to do is spray a layer of graphene anti-rust coating on the outermost layer of ordinary steel.

Yes, Anna's solution is to cover the outer layer of ordinary steel and alloys with a layer of graphene to prevent them from rusting and corrosion.

Even the outer shell of the space farm, where there is no need to worry about rust, is covered with a layer of graphene to increase strength.

You should know that as a versatile nano-level material, after spraying a layer of graphene on the surface of steel, in addition to increasing the strength, it can also achieve the point where the steel will not rust even if it is placed in salt water for a month.

The raw materials of graphene are very cheap for Anna, so it goes without saying how to deal with the rust and metal corrosion problems on the farm.

The difficulty here is actually the problem of large-scale production of graphene that has stumped scientists.

Anna wants to use graphene to spray the inner walls and frames of the space farm, so the amount she will need in the future will not be a small number.

However, after Anna's breakthrough in nanorobot technology, this problem instantly found the best solution.

When making artificial diamond quantum cores, Anna's machine enables Kanna-chan and herself to produce at the atomic level at a speed of 687 billion nanorobots every 100 seconds.

So after so many days.

After removing the parts in the super machine that only Anna could use, whose internal temperature reached 1 million degrees, and then removing the extremely high-pressure components with millions of atmospheres of pressure.

After retaining only the atomic manipulation function, the interface of the quantum computing core and the specially customized nanorobot printing program were added.

Anna’s latest version of production equipment, specifically designed for printing single layers of graphene, has just been released.

Because this machine does not need to control dangerous temperatures of 1 million degrees, nor does it have the super-high pressure used to artificially grow diamonds, the usage restrictions of this machine, which is only used to produce graphene, are very low.

If it is connected to the quantum core, people like Saikawa, Kanna-chan, and Thor can operate this machine very conveniently.

If it is connected to the quantum computer for ordinary people externally, then although the operation is very complicated and the efficiency is not very high, after the software is gradually improved, even ordinary people like Kobayashi and Takitani can use it.

And the software program that specifically allows this machine to produce graphene...

Naturally, when the task was released on the cloud platform, it was one of the first batch of software and algorithms that were conquered by programmers to complete the task.

Not to mention, in addition to the diamond quantum core, Anna has also installed an artificial intelligence diamond core on this machine.

Therefore, this latest version of the machine for producing single-layer graphene can now even perform unmanned automated production like the machines and trucks in the mines.

As long as there is sufficient supply of raw materials and energy, it can continuously produce the graphene needed by Anna and others.

Chapter 328 Metal Smelting Factory (I)

Although Anna's machine can only produce a single product, single-layer graphene.

But this machine, with its internal quantum core, artificial intelligence core, and the nanorobots on its production line, has a production capacity of...

It has also reached the point where graphene products made of a single layer of carbon atoms can produce 1000 square meters per minute.

Taking Anna's regular hexagonal barrel-shaped space farm with a side length of 400 meters and a length of 1000 meters as an example, such a machine would need more than 90 hours to produce a single layer of graphene material covering the entire inner and outer walls of the farm.

But of course, things can't be calculated like this.

Each layer of graphene is only 0.335 nanometers thick, so one or two layers are enough to prevent rust and corrosion. However, when it comes to increasing strength, Anna will not just cover the steel shell with one or two layers.

At the very least, she has to spray 1 mm thick graphene on the shell, which means that it has to reach the legendary level where an elephant can stand on a pencil and dance on it without breaking.

This 1 mm thickness of graphene is equivalent to nearly 300 million layers of graphene.

Moreover, as a universal material that has reached the nanoscale, graphene has more than just these two functions.

Therefore, Anna’s latest version of the machine for producing single-layer graphene will naturally not be just one or two.

Basically, just this one, in the smelter used for the space farm next to the mine, Anna prepared thousands of such machines and transported them over through the space gate.

Moreover, these one thousand machines are only limited by Anna's current insufficient production of nanorobots and the shortage of some customized high-precision parts.

Of course, Anna felt that the production of the first version of the machine was not high enough, so she only produced a thousand units as a trial.

Otherwise, it can be understood with simple mathematical calculations. It takes 90 hours for one of her machines to cover the entire farm, so the graphene produced by a thousand machines will take 324 seconds to cover the entire farm.

This seems like it will be quick...

But you have to know that the amount of graphene Anna needs is to cover the entire farm more than 300 million times.

If we only need to produce a thousand machines like this, it will take more than 30 years.

So this production capacity of one thousand graphene production machines...

For Anna's needs, it can only be used for experiments and single-layer graphene material applications.

If she wants a graphene shell one millimeter thick, it would be a miracle if she really only uses a thousand machines with this production capacity.

So as soon as these machines were finalized, Anna immediately started manufacturing the new generation of graphene production machines.

When the ultra-high purity graphite ore powder and the one thousand machines are transported through the space gate to the smelter next to the mine, it means that Anna's first space farm shell metal plate is about to be offline.

And when the first space farm began to be built in the Earth's synchronous orbit, it was time for Anna to leave.

Of course, it is impossible to install those 300 million layers of graphene now.

Before her new machine came out, except for the one or two metal plates used for experiments that could reach 300 million layers, Anna's graphene coating in other places would only hover around ten or eight layers.

……

……

The iron ore production capacity of the iron ore that Anna obtained free mining rights is similar to that of the Seshen Iron Mine in South Africa. After she used the smart mine and artificial intelligence, in addition to the maintenance of the Ark reactor, she also replaced parts for machines and mine trucks.

Anna's current mine can process about 67 tons of raw ore every day.

In this super open-pit iron mine, which is about 15 kilometers long and 5 kilometers wide, Anna explored it with a quantum perspective and found that it contains about 20 billion tons of iron ore that can be mined with her current technology.

Based on the average grade of the ore here reaching 60%, if this mine is fully mined, Anna can build about 48 giant space farms.

Of course, if production capacity is not increased, it will take more than 8 years to mine all the reserves. And this 20 billion tons of reserves is also for Anna herself.

For companies like Rio Tinto and Vale, with their technology, they can only detect about 12 billion tons of reserves in the mine.

Furthermore, with their capabilities, they can only mine approximately 6 million tons of the 12 billion tons of iron ore. If they dig deeper into the earth, these companies will face losses and exponentially increased mining difficulty.

Moreover, the transportation to this mine is very inconvenient.

Even if they wanted to build a railway, given the complex geographical conditions along the route, current mining technology, the cost of railway construction, and the current iron ore prices...

It is a fantasy for ordinary mining giants to recover their costs within ten years.

Such a useless cost and economic benefits are naturally the main reason why Anna was able to obtain the free mining rights here so easily.

However, after Anna's mine went online, she no longer had any transportation problems, mining difficulties, or salary and security issues for various experts and workers, so she naturally had no problem managing such a large area.

So when the first car of iron ore was delivered.

Anna had already started her cheating metal smelting factory next to the mine.

This smelting plant does not have a blast furnace for steelmaking, nor does it have the factory buildings of various traditional steel companies or pipelines for transporting oxygen and cooling water.

All the ore smelting, as well as the final shaping and quenching work, are carried out in a super-large quantum furnace.

It's similar to the quantum furnace Anna used to smelt those scrapped cars in the magic building.

However, the super furnace in this smelter is larger in size, has stronger firepower, is more violent in operation, and has the most other added functions.

The most basic manifestation is the super huge furnace that Anna installed in the valley. Its volume reaches 1.2 cubic meters, which is twice the size of the world's largest blast furnace.

Furthermore, the iron ore smelting capacity has reached an astonishing 60 tons per day, which is 46 times more efficient than those 6000 cubic meter super blast furnaces in human countries.

Chapter 329 Metal Smelting Factory (II) Quantum Furnace

Unlike those blast furnaces that still use oxygen top blowing and coke to smelt iron, Anna's quantum furnace is equipped with the core of a quantum computer, tens of thousands of artificial intelligence cores, and Anna's largest and most complex quantum channels and various quantum models engraved in the blast furnace.

This blast furnace is smelting iron ore.

No coke reduction is required, and no gas or oxygen is used for smelting.

There is no need to use the electricity from the Ark Reactor for auxiliary power supply. This electricity is used to supply quantum computers and artificial intelligence cores.

When Anna's furnace smelts steel, it directly separates carbon dioxide gas from the air and obtains carbon atoms to be mixed into the steel from the separated carbon dioxide.

After the ratio is determined, molten steel can be directly produced from the furnace after adding a single iron ore. It is not even the molten iron in the blast furnace of those steel companies.

Moreover, the smelting process of producing pure molten steel is even similar to that of a blast furnace, and it can produce steel continuously for 24 hours.

The temperature inside the furnace can even reach hundreds of thousands of degrees under the energy bombardment of the super quantum channel and other energy-gathering arrays.

After the iron ore is sent into the furnace, all the iron ore will be instantly crushed by the intense energy bombardment and instantly vaporized under the high temperature.

Just a few alchemical magic circles that Anna learned from the magic book were enough to remove the oxygen atoms and other impurities in the vaporized iron ore gas like a sieve.

Then, all they had to do was mix the carbon atoms separated from the carbon dioxide into this pure gaseous iron. Finally, they used the magic of the quantum model to conduct heat and cool it down, transferring the heat from the gaseous iron through the quantum model of the furnace for recycling...

Then the new hot molten steel that has "cooled" down from the gaseous state can be discharged from the discharge port at the bottom of the furnace.

The entire process, from ore to furnace, doesn't even take more than two minutes.

The speed of this "magic refining" where everything is completed instantly is the solid basis for Anna's super furnace to process all the iron ore in the entire mine in one day.

And this giant furnace that is as big as a hill.

This is also the quantum or magic machine that Anna is most satisfied with and most successful in this world, except for the quantum computer.

……

In fact, like all mines, the iron ore mined from the ore deposit cannot be thrown into the furnace to make steel as soon as it is dug out.

In any case, it contains impurities such as soil and stones.

However, the removal of impurities after mining, as well as the steps of ore dressing and ore washing, are all completed in a super large ore pre-processing center next to the mine.

All the machines inside are also new combinations of sensors and artificial intelligence cores.

These equipment and machines are certainly not cheap. Most of Anna's billion dollars were spent on the mine and the ore pre-processing center, and each of the items inside weighs dozens or even hundreds of tons.

However, because Anna did not need the three guarantees and transportation provided by those manufacturers, Anna was able to spend only so much money and also purchased a lot of peripheral parts for the super furnace that did not cost her much money.

Therefore, when the mined iron ore is transported into the furnace, it is all pre-processed iron ore with a grade of about 64%, just like other steel mills.

Moreover, below the molten steel discharge port, she also set up an assembly line specifically for hot rolling processing of steel.