"Huh! Nothing! Wang Lei shrugged: "My mouth is bald!" We say business...... business, business! What did you ask me for before, so mysterious! ”

Wang Lei felt that he was still being affected by Ouyang Yue's dream instrument, before he spent a few months in order to change some of the different tones, grammar, and words brought from a thousand years later, but he didn't expect Ouyang Yue to spend one night to make him finally get rid of the habit that he had finally changed.

Seeing that Wang Lei doesn't explain what "well-off" is, Yu Yang doesn't plan to ask further, although he has not been in contact with Wang Lei for a long time, but he has gradually become accustomed to some of Wang Lei's strange words and actions that pop up from time to time, and he now almost instinctively attributes these habits to Wang Lei's background of growing up in the United States.

Ignoring Wang Lei's nonsense, Yu Yang took out a map from his arms and pointed to a location on it: "A few days ago, I heard that the steel mill was going to operate independently, and I talked to President Hu, and I knew that the raw materials after the steel mill were also purchased by themselves. It just so happens that there is an iron mine near our county seat! You see right here, not far from Ping'an County, before the Japanese were mining, after the liberation of Ping'an County, this mine was temporarily idle, I wanted to send people to continue mining, but our location is inconvenient, after the devil blocked the surrounding roads, we dug out and could not be shipped out in large quantities, so I am idle and hope that your steel mill can buy the iron ore here, I guarantee that the price will not be higher than the arsenal! ”

"Iron Ore?!" Wang Lei was a little surprised: "What iron ore?" ”

"Hematite!"

"What!" Wang Lei was taken aback.

Hematite, an oxide mineral belonging to the trigonal crystal system, is the main mineral form of iron oxide. Because the iron content is up to 70%. It is mainly smelted from hematite. Wang Lei didn't expect that there would be such a rich iron ore near Ping'an County. And more importantly, a kind of associated ore in hematite is exactly what Wang Lei needs now, "What is the bauxite content in it!" ”

However, Yu Yang's answer made Wang Lei a little disappointed, "There is some bauxite, but the distribution is relatively scattered, and there is not much mining value." And we simply do not have the technology and equipment to refine aluminum now! ”

Bauxite, also known as bauxite or bauxite, is mainly composed of alumina, which is hydrated alumina containing impurities and is an earth-like mineral. White or off-white, brownish yellow or light red due to the presence of iron. The density is 3.45g/cm3, the hardness is 1~3, opaque and brittle. Extremely difficult to melt. Insoluble in water, soluble in sulfuric acid, sodium hydroxide solution. It is mainly used for smelting aluminum and making refractory materials.

And it is also an important material for aircraft manufacturing. Due to the attraction of the earth, the lighter the mass of the aircraft, the better. The lighter the plane, the higher, faster, and farther it flies, and the greater the load. Aluminum is a light metal with a specific gravity of about 2.7, so for a long time, most of the skin of the aircraft was pressed with aluminum alloy, as well as the front receiver, aircraft frame, ribs, etc. Aluminum alloy materials account for about 50%-70% of aircraft materials.

Although after the end of the electrification era, titanium alloy has completely become the main material of aircraft. However, aluminium was still the main material for some time after the Second World War. And the planes during World War II were mainly covered with aluminum, of course, these are relatively advanced aircraft. Aluminum in the Soviet Union had a poor base and could only be made of wood, but aircraft like the Il-2 still had built-in armor plates, as well as British mosquito bombers.

Wang Lei asked Yu Yang about bauxite this time, just to prepare raw materials for future aircraft manufacturing, although Wang Lei has more suitable titanium alloys and carbon alloys, and even lighter alloys used in spacecraft. But Wang Lei is still ready to use aluminum or aluminum alloy as the main material this time, it's not that he doesn't want to come up with other alloy technologies, but with China's weak industry, if you want to fully master the mining of titanium has been refined, I'm afraid it won't work for a year or two. Wang Lei can't wait a few years, so Wang Lei will choose aluminum as the main material.

However, now the arsenal has a pitiful lack of aluminum reserves. Although in the 19th century, the Danish chemist Oster used dilute potassium amalgam to react with aluminum chloride to separate the metal aluminum, but for a period of time after that, aluminum was enjoyed by the imperial aristocracy. The French Emperor Napoleon III used aluminum forks at banquets; The King of Thailand used aluminium bracelets. It was not until Siemens improved the generator in the 70s of the 19th century, with cheap electricity, and later with the discovery of electrolytic aluminum, that the price of aluminum fell.

Although the price of aluminum is not so outrageous these days, China's weak industrial and power base has directly contributed to the low or no production of aluminum in China. Therefore, the vast majority of aluminum in the arsenal now comes from abroad, and the problem is that almost all ports and terminals in China are now almost controlled by the Japanese, and it is completely impossible to import aluminum in large quantities. But now if you want to make an airplane, the current aluminum reserves of the arsenal are estimated to be only enough to build an airplane wings, so Wang Lei will give birth to his own idea of producing aluminum, whether it is a large-scale geothermal generator that has just been built in the arsenal or a thermal power plant in Ping'an County, the power of electrolytic aluminum has reached the conditions, and now it is almost ore.

That's why Wang Lei asked Yu Yang about bauxite, and when he heard Yu Yang say this, Wang Lei smiled: "Technology and equipment are not a problem, as long as there is a mine." Because I'm going to build an aircraft factory, I need a lot of aluminum! ”

The matter of the aircraft factory is not a matter of secrecy, and in the absence of air supremacy, it is completely impossible to build an airport and an aircraft factory and still want to keep it secret, and Wang Lei did not think about keeping it secret.

"What !!" Wang Lei's seemingly casual words startled Yu Yang, and he stood up suddenly: "What are you talking about!! ”

Wang Lei patted the table lightly: "Don't be impatient!" Isn't it just an aircraft factory, what's all the fuss! ”

"What's all the fuss!?" Yu Yang almost jumped up: "This is an airplane!" Plane! If we had a plane, the little devils would dare to come! ”

"That's it! All right! Wang Lei pressed his hand hard: "Now the construction of airports and factories will take at least 3 months, and there are too many things involved in aircraft manufacturing, and it will take at least a few months for our workers to be fully familiar with it, that is to say, our aircraft will be in the sky next year, and the aircraft manufacturing also needs someone to pilot, and a qualified flight accelerator cannot be trained in a few months, let alone a fighter pilot." Are you thinking about it now to take back air supremacy from the little devils! ”

"Uh, I'm sorry! I'm out of shape! Yu Yang finally calmed down, and he sat back in his seat: "But is it appropriate for you to tell me this?" This ......, this should be considered your top secret! ”

"You're not an outsider, are you?" Wang Lei stared at Yu Yang's eyes, seeing that Yu Yang's expression was getting more and more serious, as if he was ready to guarantee something, Wang Lei said unhurriedly: "Okay!" Let's put aside the plane for now, and let's move on to the mine, and I don't have a problem with what you said. However, you still tell Hu Lao about the specific details, he is now the director of the steel mill. The other is bauxite, no matter what the quality is, I still hope that you can provide a batch to the arsenal, and the price is a little higher! ”