"I remember that gold-titanium alloy was not this color." Ye Fan looked at the pale gray piece of metal on the ground, and immediately frowned.

Gold-titanium alloy, which is an alloy made of 99% gold and l% titanium, and its color looks close to pure gold, is also known as ninety-nine gold, and is labeled "990".

The purest gold-titanium alloy, that is to say, a gold-titanium alloy produced in full accordance with the ratio of gold and titanium, can only be produced by military enterprises.

Private enterprises on the market, even if the steelmaking industry has reached the pinnacle, it is completely useless.

Gold titanium alloy must be produced according to the ratio of 99% gold and 1% titanium.

However, at present, the proportion of gold in private enterprises on the market can only be controlled at 88.7% at most, the proportion of titanium is 0.75%, and the rest are impurities, and the structure of only gold and titanium is not completely achieved.

Although this proportional deviation is negligible, if it is used in rocket engines, or even missile engines and aircraft engines, it is good that there are no problems, and if there is a problem, it is definitely a complete calf.

The gold and titanium alloy in front of him is gray, which is completely unreasonable.

"Hehe, boss, this is the disguise of those ghosts, if it is as golden as gold, how can it be smuggled here?" Lin Wei suddenly smiled.

Lin Wei beckoned to the workers, and soon, a worker took out a bucket of sulfuric acid from the side and took protective measures on the side.

"Boss, stand back, don't splash, this thing is very corrosive." Lin Wei said as he instructed the workers to pour a bucket of sulfuric acid onto the surface of the gold-titanium alloy.

"Whew!!"

When a barrel of sulfuric acid is poured down, its camouflage material is corroded at once, and the gray color gradually fades, leaving only a brilliant gold.

"Golden Legend!" Looking at the gold and titanium alloy in front of him, Ye Fan suddenly thought of this stalk in the game at this time.

No wonder the gold in the game is so awesome, I didn't expect such a big lump of gold in real life to be even more dazzling than in the game.

"Yes, this is the gold-titanium alloy, let's leave it for now, and when the intelligent robot is assembled, it will be melted." Ye Fan nodded and spoke.

"When will the ion engine arrive?"

"I'll be there tomorrow afternoon, and there will be a few suitcases mixed with a batch of steel." Lin Wei took out a small notebook and replied.

Ye Fan also nodded lightly.

The ion engine is just a colloquial term, and its full name is "plasma jet propulsion engine".

The ion engine is a real high-tech thing, and it takes all kinds of high-precision and cutting-edge machinery and all kinds of high-end engineers to build it.

Anyway, today's Datang Heavy Industry's scientific and technological strength is unable to manufacture this thing, after all, to manufacture a product, it requires relevant industrial chains, related industrial machine tools, and various equipment.

For example, the most basic computer processor I9-9900K, even if the drawings and production steps are all made public, there are still only a few companies in the world that can make it.

Don't look at Ye Fan's previous creation of a quantum computer, but all the core parts inside the quantum computer, such as quantum transistors or something, are all secretly purchased from abroad in large quantities.

The processing and manufacturing of Datang Heavy Industries is just based on the core parts, making them into parts that can be installed modularly.

Its basic core components still come from laboratories in countries such as Amejian, as well as some high-end suppliers.

And this ion engine is also a high-end thing, and even if you know the drawings and design principles, you can't make it without an industrial base, so you can only buy it.

Amejian started research and development on the ion engine in 2007 and only produced more than 20 samples in 2017, most of which have been reimbursed in various tests.

An ion engine is about the size of a palm, and its principle of operation is to convert a large amount of electrical energy into a large number of charged ion streams, so as to eject the charged ion stream through a complex electromagnetic field to form a thrust.

Not only was the engine lightweight, but it was also a palm-sized engine that could produce power comparable to that of a Boeing 747 airliner, but research on ion engines was shelved and abandoned.

There's no other reason than because the power consumption of this thing is so.

After all, an ion engine can only be driven by the electricity of almost a power station, and it is not much faster than an aero engine in terms of speed.

Before the current battery industry, or micro-controlled nuclear fusion, this ion engine was a pile of scrap metal.

After all, Amejian's think tank is not a fool, and it invested tens of billions of dollars into it, but the engine was made smaller, and the thrust was not bad, but each engine had to be connected to a superconductor wire, and each wire had to be tied to a power station to generate full power!

So at that time, this ion engine almost made Amejian's think tank half angry, all the relevant research teams were disbanded, and the remaining samples after the test were also thrown into the warehouse to eat ashes.

It is precisely because of this ion engine that even if it is built, it is useless, and even if all the technology is made public, no one can build it except for the relevant research team, so the control is also lax.

However, even if the control is loose, this thing is stored in the warehouse of a small military base, and I don't know what means the black market on the other side of the ocean used to get hold of this thing.

It's just that the price of this ion engine is also very expensive, only six ion engines, and the black market actually offered a price of 600 million.

may also be the so-called "starving to death of the bold", no one can ignore this generous bonus, even some famous gods in the industry, who have done this vote, can basically spend the rest of their lives in glory.

It is estimated that this is also the reason why the ion engine can be obtained so quickly.

Otherwise, it is really impossible to get it, so you can only open a relevant industrial chain to build it yourself.

But if you do it in this way, even if Ye Fan has the technology given by the system, it can save a lot of theoretical and scientific research costs, and it is completely insufficient to invest in this high-end technology industry chain without tens of billions of dollars.

So in the eyes of others, Ye Fan is already a successful person and a wealthy person.

But Ye Fan himself thinks that he is still a poor man, after all, he needs money to do everything in scientific research, and he can't even buy equipment without a little money.