Since Renault became the Lord of the tidal islands, a series of crises in the territory, such as food crisis, energy crisis, housing crisis and so on, have been solved by Renault one by one, but one has never been solved.

Not only has it not been solved, but it has become more and more serious.

It''s steel!

Weapons need steel, machine tools need steel, and construction machinery also need steel. The hot magic engine newly developed by Rune Research Institute is a big consumer of steel.

The whole engine is a huge metal lump that weighs several tons. In addition to the gearbox, propeller and transmission shaft, a single system will consume more than 10 tons of steel.

Therefore, the territory''s steel is in a hurry.

Some time ago, in order to build the power system of Odin, not only the stored iron ore was consumed, but also Renault melted off some unimportant metal products. As a result, there was still not enough steel.

Just as Renault was about to organize her men to venture out to sea, the consul asked about the gap in the steel. She patted her chest and said, "give it to me!"

Then the consul called all the civil servants together and held a short meeting to mobilize all the people to buy metal products from the leaders.

When the civil servants visited the civilians door to door and sincerely stated the current difficulties of the territory, the civilians gave generously, and many people even donated their cooking pots.

When the civil servants repeatedly refused, the civilians were very generous to say: nothing! We can share a pot with several families.

In a short period of time, the government office moved 20 tons of steel.

This surprised Renault.

Miss consul, however, was indifferent. She also said that if she was given another day, the administrative department could get more steel, conservatively estimated to be more than 40 tons!

As the chief executive, the young girl deals with civilians almost every day. She deeply understands the prestige of the Lord and the government office in the minds of the people.

Let everyone have enough meat to eat, spare no effort in disaster relief, help civilians repair damaged houses, and even build wooden houses for the victims. These things have made Reno''s reputation among the civilians to worship!

So when civil servants came to the door for help for the first time, the civilians responded enthusiastically.

And the birth of the first thermal magic engine, to use the word "smash the pot and sell iron" to describe, it is not too much.

After Odin finished the final modification, the Lord didn''t even plan to do the test, so he took his men to Tiejia island.

Because there is a rare open-pit iron mine on the island!

To be exact, more than 95% of Tiejia Island, with a total area of more than 35 square kilometers, is open-pit iron ore.

Just pick up a few stones on the island, they are all high-grade iron ore, with iron content of more than 65%.

Not only that, it is said that some people have gone into the water for simple exploration, and there is a huge ore vein extending for tens of kilometers under the water.

Further away, no one will explore, because there is no need. The existing iron ore on the island has been used for many years. Even if it is explored in other places, it will not be mined. Why bother?

Isn''t it full?

It is not polite to say that Tiejia island is an iron island to the letter!

What are the iron ore reserves on the island?

Renault has not made a detailed survey, but according to the available data, the reserves are extremely Extremely Amazing.

The iron ore on Tiejia island alone is as high as 10 billion tons!

At least!

According to taste calculation, more than 7 billion tons of steel can be refined!

When Renault came to this conclusion, he was not only very happy about the choice of "farming in the tidal islands", but also very happy that he didn''t give up and insisted on searching when his life and death in Elon were uncertain.

Just this super iron ore, which can last for 100 years, is worth all the tickets.

As soon as the magic boat full of island protectors arrived at a black beach, Muse began to drink and urge the team members to get off the boat.

Then he issued a series of orders, arranged for some people to build fortifications, another part of the people led by Ronald, responsible for the guard, the beach immediately busy.

Ronald was obviously a little nervous because there was a very difficult creature on the island, which was more restrained from magic air guns than the black iguana on the island.

At his request, the sentinel team members were ready to fire at any time with magic air guns in their hands.

Before long, Renault landed on the beach leisurely. Seeing the strange color of the beach, he could not help squatting down and grabbing a handful of gravel to observe carefully.

The sand is bigger than ordinary sand, and its surface is slightly rough. It seems that the tide is hard to polish them.

In addition, the heavier weight than ordinary gravel fully indicates that they are actually gravel like iron ore.It''s really an island of iron ore, and there are sand beaches made of iron ore. the alien world is really a world full of miracles.

The black sand indicates that they are black iron ore with higher iron content, namely Fe3O4.

On the earth, almost all black iron ore is magnetite, and without exception, they have strong magnetism, but in the alien world, strange things happened, magnetite actually lost its magnetism!

Moreover, Renault has never heard of such a thing as a magnet, and people from other countries do not even know what "magnetism" is.

Although I don''t know what the reason is, it''s obvious that this is what magic can do. The alien magnetite has been degaussed.

This also brought Renault a huge trouble: electricity, no more!

What else can we use to generate electricity when the magnet is gone?

Does love generate electricity?

At the same time, all the science and technology trees related to electricity can''t grow.

Renault was sad for a long time when he first learned the terrible fact that "there is no magnet in the alien world".

Perhaps Renault is one of the most unlucky ones among the successive crossing armies on earth.

A world without electricity is too sad.

Because the computer is gone

Mobile phone, also gone

Ai Qing will make movies, and there won''t be any more

Well, unless you do it yourself.

Worse than him is the liberal arts student''s passer-by, because even if there is electricity, they can''t send it out, ha ha ha

Unless there are non scientific means.

Power generation is not as simple as you think. Do you really think that you can get electricity by making a magnetic field with a bunch of magnets and then cutting the magnetic field with a copper wire?

How naive!

this is just the way to play in the lab. The most important thing is to light up a poor light bulb and look at it in a strange way. It will make woodlouse laugh and get rid of it. It will be one hundred and eight thousand miles away from the actual use of the large scale.

The principle of power generation is very simple, that''s right, but in the end, everything has to fall on the mechanical equipment. To make a set of reliable power generation equipment, we need to light up a huge pre technology tree.

As a mechanical dog majoring in thermal energy and power engineering, Renault has taken professional courses in thermal power generation and visited large-scale thermal power plants. He knows how difficult it is to produce a set of large-scale thermal power generation equipment.

A single large steam turbine represents hundreds of years of technology accumulation.

Thermal power is really difficult. What about hydropower?

The core equipment of hydropower generation is Hydrogenerator. Its structure is simpler than that of steam turbine, but it can not be easily manufactured by anyone.

Not to mention the blade of this material, process requirements are very high parts, a single cast iron shell, it is not simple.

Isn''t casting casting liquid metal into a cavity? How difficult can it be?

Is that true?

Of course not!

Casting is not so simple. It''s difficult to cast large and complex parts.

Take sand casting as an example, sand for making sand mold is not any sand. In order to ensure the formability, special binder must be added to the sand.

With sand and binder, what kind of sand mold you want, what kind of sand mold you can make?

Of course not!

Making sand mold is a rigorous craft. If you don''t play with sand for several years, I can guarantee that you can''t squeeze the simplest sand mold well, and you don''t want to take a look at the things poured out.

Sand mold design is also very particular.

When casting pouring, the molten metal flows into the cavity from the pouring port, and the gas runs out from the special exhaust port.

It looks simple, doesn''t it?

Is it that simple?

Of course not!

If the structure of the cavity is complex, can you ensure that all the gas can be discharged in time?

Once there is any residual gas, defects such as "shrinkage cavity, sand hole" will be formed on the surface of the casting after the metal melt is cooled.

In other words, what you get is not a casting, but a sieve disguised as a casting.

Do you know what a sieve is?

It is the sieve in "the sea, you are all water; the sieve, you are all holes"!

So the location of the exhaust port is very important.

Special attention should also be paid to the flow and cooling of molten liquid in the cavity.

Uneven flow, over!

Shrinkage cavity and sand hole are coming again.

Uneven cooling, over!

I''m telling you, there''s a crack inside this time. What you''re doing is not a casting, it''s a bomb, you know?

It''s a special time bomb. I don''t know what''s going to blow up people''s faces.

So the position of pouring port is also very important.

Speaking of this, do you still think that casting is to pour molten liquid into sand?

Although every generation of mechanical dogs on the earth has a few feet, dull eyes, and boring words, they are in the middle and lower levels of the contempt chain, no matter in economic status or social status, but the wisdom of this kind of "canine" can not be underestimated.Renault would have been hiding in a corner where no one could find him if he didn''t have the divine manufacturing ability of "read power" and could go through all the manufacturing problems without reason.

Well, by the way, I''ll have a baby and raise pigs with Angela.

You can also let mousse help with the children. You have to find something for the retired elderly, right?

Even more dare not boast Haikou, say what save all mankind, kill all black orcs and so on "bullshit".