Military Technology

As the lander successfully landed on the landing site of the Zhihai Lunar Surface Scientific Exploration Station, relevant follow-up work began immediately.

In fact, Yu Chengwu, Zhou Xiangming and the others did not celebrate for too long. Because for them, it is far from the time to celebrate, because they have only completed half of this mission. Now they have only sent the spacecraft's lander to the moon, and next they have to send the world-famous golden meteorite core As well as transporting the collected lunar resource samples back to Earth, this process is equally arduous, so the pressure on the shoulders of Yu Chengwu, Zhou Xiangming and all technical team members is still there. Although it has weakened a little, as long as the mission is not over for one day, this pressure will remain It will keep weighing them down, preventing them from completely letting go.

According to the mission arrangement, the landing point of this lander is in the northeast of the entire landing site, so it is relatively close to the Zhihai Lunar Surface Scientific Research Station.

The reason why we took the risk and chose such a close landing site was to facilitate the transportation of the gold meteorite core and samples. Of course, it also facilitates the transportation of related parts and materials carried on the lander.

First, what Yu Chengwu and the others had to do was to unload the cargo and materials carried on the lander, and then transfer them to the material warehouse of the Zhihai Lunar Surface Scientific Exploration Station for storage through two engineering transport vehicles.

This is one of the supporting projects of the entire research station, which is the material warehouse. It is actually a large building printed using a lunar 3D printer. It's just that unlike the rough construction of the research station, the purpose of that building is not to store some materials, goods, equipment, etc.

Therefore, its internal structure is not very different from the main building of the scientific research station. First of all, its internal shape is very much like an isosceles trapezoidal structure, like an upside-down rice bucket.

The top is small, the bottom is large, it has a flat top, and there is no sliding door in front.

The outside is a hollow structure, and a 3D printer is used to print flat small floor tiles. The reason why there is no integrated floor printing is because the warehouse mainly stores some goods and equipment, few of which are small and heavy goods and equipment. It is difficult for those goods and equipment to press the ground well, so the small floor of the general shop is Blocks of floor tiles facilitate early maintenance.

Even if the floor tiles are damaged in the early stage, they cannot be replaced and repaired in time. But it must be printed as a whole-body floor. If it is damaged, it will be damaged and repaired.

The foamed insulation material is stored in a liquid state in a low-pressure tank. When it is ejected from the nozzle, it will expand rapidly due to changes in pressure.

Spray the layer of foam insulation material evenly on the inside of the package to form an insulation layer with a gap of less than ten centimeters. It is like foam. It is very heavy but does not have a bad insulation effect.

Therefore, the design team covered the inner facade of the material warehouse with a layer of lunar soil up to 40 centimeters thick.

The work is only technically difficult and the risk is extremely low. The golden meteorite core, as the core target of this mission, contains inestimable scientific value. At the same time, it is also the focus of scientific research institutions in various countries, and the importance of its dangerous transportation is self-evident.

The entire sliding track is actually made of materials from the bottom of the original lunar cargo transport spacecraft lander. The small door is also made of some of the following materials. The welded combination becomes a hollow excuse. The outside of the small door is filled with insulating foam. and lunar soil, thereby achieving a thermal insulation effect.

Especially before returning to Earth and landing, if the package must be sealed, it will be very difficult to be contaminated by the earth's environment. This will slightly affect the composition analysis of the gold meteorite star core, thereby affecting the advancement of scientific research work.

As the cargo under the lander was unloaded and transferred to the material warehouse, Hu Yanjie and Zhou Xiangming's focus turned to the next important task - transporting the gold meteorite core and lunar resource samples back to Earth.

Of course, just that layer of metal film is enough. Next, a layer of low-molecular polymer material must be wrapped under the metal film to protect that layer of metal film and also weaken the entire package.

The subsequent foaming insulation material foamed due to contact with air, while the foaming material used in the gold meteorite star core package used air tubes to reverse foaming, so the process and reaction process A little more upscale.

In addition, the material warehouse is actually an earth-covered building. In order to prevent the internal temperature of the material warehouse from being too high, it is also to be able to withstand the absolute zero inside and keep warm during the hot lunar night.

And that layer of lunar soil is also made of very fluffy powdered lunar soil. On the one hand, it is of course to maintain the fluffiness of the soil covering the entire inner surface, which is more conducive to keeping warm. In addition, it can also minimize the weight of the entire vertical surface. The weight of the covering soil ensures the stability of the entire building.

Even some equipment, such as lunar rover, lunar soil 3D printer, detector, etc., will be parked outside the warehouse for the winter.

Next, a layer of foam insulation material needs to be sprayed inside that layer of low molecular polymer material. That layer of foam insulation material is actually the same as the foam insulation we sprayed under the rocket body, including the Walker spacecraft return module. Cold materials are similar, but some are not the same.

In this way, the golden meteorite star core will receive a layer of protection to prevent it from being polluted by the outside environment.

In addition, in order to ensure that the temperature outside the material warehouse remains relatively constant, a special cooling device is also installed outside the material warehouse, which uses electric power to cool the outside to ensure that it remains cool during the lunar night. , the temperature outside the material warehouse is too high to prevent some goods and equipment from being frozen by the high temperature.

In addition, the low-molecular polymer material does not have a certain cold insulation ability, so as to avoid the low-temperature burning caused by slow landing in the small atmosphere and its impact on the core of the gold meteorite.

As for the small doors of the entire material warehouse, they are also designed in a general way. It is actually a small horizontal sliding door that uses a lower and upper slide rail.

In fact, according to such protection standards, the material warehouse is not enough to accommodate people. It's just that it doesn't have an airlock, and the outside is not depressurized, so it can only be used to store cargo, supplies and equipment.

After installing the golden meteorite core into the landing ascent, the golden meteorite core must first be packaged. First of all, we need to use the ordinary packaging material that was shipped, which is not actually a metal film. We use that metal film to wrap the entire golden meteorite core, and then use ordinary tape to seal all the gaps under the metal film, so that The gold meteorite star core is completely wrapped outside the metal film.