Bright Sword starts with the grenade flat.

Chapter 324 Asteroid Crisis

But on Blue Star, the energy density of hydrogen fuel cells is still very advantageous compared to the energy density of ordinary solid-state batteries.

After all, although the oxygen content on the Blue Star's surface has dropped to less than 15%, it is no longer enough to support normal human activities.

However, there is no problem with this oxygen driving hydrogen fuel cells. Therefore, the energy density of hydrogen fuel cells on the Blue Star surface is still very high, reaching 15 kilowatts per kilogram, which is fifteen times that of ordinary solid-state batteries.

So Liu Qi, who still had no idea about the micro-nuclear fuel cells in radiation, had to install a hydrogen fuel cell backpack on his radiation armor, which contained a large amount of liquid hydrogen and a reactor for generating electricity.

There is no way to increase the battery life of the hydraulic-powered mecha. Although the power of the hydraulic-powered mecha is much greater than that of the servo-powered mecha, this also means that its power consumption is much greater than that of the servo-powered mecha.

There is no way. To walk, a servo-powered mecha only needs to control the servo motors on its two legs. But for a hydraulic-powered mecha, whether it is walking or moving its fingers, it needs to start the large motor of the power core to supply the hydraulic power core. Provides pressure, so its energy consumption is naturally not small.

Time flies very fast, and a year has passed in the blink of an eye, and Liu Qi's hydraulic power mecha has also been fully improved. First of all, the original high-pressure hose that conveys hydraulic power was directly replaced by a metal pipe.

There is no way that high-pressure rubber hoses have limited pressure resistance and are not very cold-resistant. They are easily cracked by freezing when working at low temperatures for a long time.

In addition, Liu Qi also redesigned the hydraulic power core so that it can reach higher pressure. You must know that when Liu Qi had not entered the Mecha Research Institute, he had not yet developed the cutting-edge technology of Blue Star. Not very understanding.

But now Liu Qi has increased the hydraulic pressure ten times because the material is strong enough. In other words, the strength of one finger can reach three tons.

This kind of power coupled with the hardness of the mecha's fingers can naturally easily deform the corners of ordinary alloy tables.

Maybe you don't have much idea about these pressures. Let's take a very simple example. The pressure represented by one MPa is about ten kilograms of force exerted on an area of ​​one square centimeter.

This kind of hydraulic pressure is actually similar to the working pressure of the hydraulic cylinder of a civilian excavator. However, after Liu Qi entered the Mecha Research Institute, he saw that the yield pressure of top high-strength alloys can actually reach more than ten times that of civilian materials. After that, he naturally understood that if his hydraulically powered mecha was made of these high-strength materials, it would naturally be able to withstand greater pressure.

Therefore, the pressure of the hydraulic-powered mecha designed by Liu Qi is 30 MPa, and the area of ​​the hydraulic cylinder that drives the finger joints is one square centimeter. In this way, the power of one finger of the hydraulic-powered mecha can reach three meters. A hundred kilograms of strength.

Therefore, when designing the pressure, it was not designed too high for fear that the material would not be able to withstand it, so the pressure of the hydraulic cylinder was set at 30 MPa.

Of course, there is more to it, because the area of ​​the hydraulic push rod of the mecha arm is not one square centimeter, but ten square centimeters. In this way, the ultimate force that the two arms can achieve is sixty tons. If the hydraulic press is given If the arm hydraulic cylinder on the armor is thicker, it will not be impossible to lift something weighing a hundred tons.

It is simply impossible to put such an ability on a servo-powered mecha, because even if the torque is increased by a reducer, the servo motor cannot reach this level.

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"Captain Qiu, this is the director of the Mecha Research Institute. Take a look at the test video of the second-generation hydraulic mecha sent by Liu Qisu!" Liu Xiu, who was thinking about how to deal with the asteroid crisis, heard what Hao Xiaoxi said. Liu Qi, who couldn't think of any good solution, clicked on the video sent by Hao Xiaoxi.

In the video, Liu Qi personally entered a hydraulic-powered mecha that looked different from the original mecha, and then easily lifted the bed of a mining truck.

Liu Xiu still knew the weight of the cargo bucket of this mining truck. Its dead weight reached fifty tons, but its carrying capacity could reach two hundred and fifty tons!
And Liu Xiu felt funny watching this mecha, which was only two and a half meters tall and weighed less than a ton, lift something fifty times its own weight.

But then Liu Xiu thought about Hao Xiaoxi and asked:

"The materials used for such a mecha should be quite expensive! Can it be mass-produced to replace the mechas used by rescue personnel on the ground?"

That's right, the first thing Liu Xiu thought of for this kind of mecha was a mecha used for rescue. You must know that it is not a very safe thing to mine mining trucks on the surface to transport stones to serve as fuel for planetary engines.

Because most of the surface is covered with ice, but the ice in some places is not very strong, it is common for mining trucks to overturn, but it is not so easy for a rescue crane to get there.

And if the surface rescue team can be equipped with this kind of mecha, it will be much easier for them to rescue an overturned mining truck.

Because such a hydraulic mecha can serve as many professional rescue tools, but it is a pity that Hao Xiaoxi’s next words broke Liu Xiu’s idea. Hao Xiaoxi shook his head and said:

"According to the use of the mecha materials Liu Qi sent, this kind of mecha cannot be popularized on a large scale because it uses high-strength special alloys and is very difficult to manufacture. With today's technology, It’s not yet mass-produced, so it can only be used on a small scale! And the rare metals needed to make high-strength special alloys are not easy to find on Blue Star!”

Liu Xiu nodded after hearing Hao Xiaoxi's words. After understanding that it was indeed difficult to popularize such a powerful mecha, he thought for a while and said to Hao Xiaoxi:

"Xiao Xi, please tell Liu Qi that since high-strength special alloy mechas cannot be mass-produced, we can produce ordinary mechas, but the strength requirements can reach ten tons and can carry out cold weather operations on the surface for a long time. , In addition, the high-strength special alloy mecha is required to be changed to a space version, and it is required to have the ability to fly short distances in space!”

That's right, the mechas Liu Xiu asked Liu Qi to mass-produce were naturally used by the surface law enforcement rescue team, because there are about six or seven people in a surface rescue team, so as long as there are several people working together with this kind of mecha, it can A large mining truck that overturned can be saved.

As for the space version of the high-performance mecha with certain space maneuverability that Liu Xiu later requested, it was actually prepared to deal with the asteroid belt.

You must know that after the Blue Star reaches the orbit of Mars, it must pass through an obstacle if it wants to solve the orbit of Jupiter, and this obstacle is naturally the asteroid belt.

It is located between the orbit of Mars and the orbit of Jupiter, and its distance from the sun is 2.13 astronomical units. There are more than half a million asteroids in this orbital zone.

(End of this chapter)