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 only sent the spacecraft's lander to the moon, and then
Next, we have to transport the world-famous golden meteorite core and the collected lunar resource samples back to the 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.
Some, but as long as the mission is not over for the day, this kind of pressure will keep pressing them, preventing them from completely relaxing.
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 is to facilitate the transportation of the golden 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 have to do is 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 this material warehouse. It is actually a large building printed using a lunar soil 3D printer. It is just that unlike the research station building, which is so rough, the purpose of that building is to use
Store some supplies, goods, equipment, etc.
Therefore, its interior structure is not very different from the main building of the scientific research station. First of all, its interior 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 the front.
The outside is a hollow structure, and a 3D printer is used to print small, flat floor tiles. The reason why there is no integrated floor printing is because that warehouse mainly stores some goods and equipment, few of which are small and heavy.
For cargo equipment, it is difficult to press the ground well, so small floor tiles are usually laid to facilitate early maintenance.
Even if the floor tiles are damaged in the early stage, they cannot be replaced and repaired in time. But if it is printed as a full-body floor, if it is damaged, it will be damaged and repaired.
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 entire sliding track is actually made of materials from the bottom of the original lunar cargo transport spacecraft lander, which are spliced together. The small door is also made of some of the following materials, and the welded combination becomes a hollow excuse. The outside of the small door is filled with cold-insulating foam.
and lunar soil, thereby achieving a thermal insulation effect.
That work is of low technical difficulty and extremely low risk. As the core target of this mission, the gold meteorite core contains immeasurable scientific value. At the same time, it is also the focus of scientific research institutions in various countries, and its dangerous transportation is
The importance is self-evident.
Even some equipment, such as lunar rovers, lunar soil 3D printers, detectors, etc., will be parked outside that warehouse for the winter.
The foamed insulation material is stored in a liquid state in a low-pressure tank. When it is sprayed out from the nozzle, it will expand rapidly due to changes in pressure.
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
Be simpler.
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.
As for the small door of the entire material warehouse, it is also designed in a general way. It is actually a horizontal sliding door using a lower and upper slide rail.
In this way, the golden meteorite star core cannot 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 installed outside the material warehouse, which uses electric power to cool the outside, ensuring that during the hot lunar night,
The temperature outside the material warehouse is too high to prevent some goods and equipment from being frozen by the high temperature.
Especially before returning to the earth and landing, if the package must be sealed, it will be contaminated by the earth's environment, which will affect the analysis of the composition of the gold meteorite core, thus affecting the progress of scientific research work.
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.
In fact, according to such protection standards, the material warehouse has not yet been occupied by qualified personnel. It only depends on whether it has an airlock and whether the outside is depressurized, so it can only be used to store goods and materials and equipment.
As the cargo under the lander was unloaded and transferred to the material warehouse, Yu Chengwu and Zhou Xiangming's focus turned to the next important task - dangerously transporting the gold meteorite core and lunar resource samples back to Earth.
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 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.
After loading the golden meteorite core into the landing descender, the golden meteorite core must first be packaged. First, the packaging material must be used after being shipped, which is not a metal film. Use that kind of packaging material.
The metal film wraps the entire gold meteorite star core, and then uses a piece of tape to seal all the gaps under the metal film, so that the gold meteorite star core is completely wrapped outside the metal film.
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 capsule.
Cold materials are similar, but some are not the same.
Therefore, the design team designed to cover the inner facade of the material warehouse with a layer of lunar soil up to 40 centimeters thick.
