Military Technology

The permanent scientific research station, compared to this inflatable inflatable moon short-term commercial scientific research station, is of course a long-term building, so its operating life will naturally be much longer.

　　 As he said, Wu Hao swiped the folding screen under his hand, and the big screen immediately displayed a bird's-eye view of the original lunar scientific research station.

"If you want to build a permanent lunar commercial scientific research station solely by transporting materials and materials from the earth, the efficiency is too low, and the cost is very high, it is definitely not cost-effective. Such a permanent lunar commercial scientific research station is not a business. Even if the country wants to bear it, it is very difficult.

　　 So the best way is to make full use of the moon’s existing resources and use local materials to build this permanent lunar commercial research station. "

　　 This idea experts did not feel any surprise, because the use of local materials and the use of lunar resources to build a lunar scientific research station can be said to be one of the more economical and more reliable solutions in the academic circle. Therefore, everyone was not surprised that Wu Hao and the others adopted this construction plan, but felt that it was more reasonable.

And Wu Hao went on to say: “In addition to some metal element mineral resources and the helium three resources that we humans are very eager to obtain, among the lunar resources that we have proven, the largest content in the lunar soil is probably quartz and basalt. Got it.

　　 And our materials for building a permanent lunar commercial scientific research station mainly focus on these two substances.

Whether it is basalt particles or quartzite particles, which are relatively hard and stable, they can be said to be very good building materials. Therefore, we believe that the high-temperature dissolution characteristics of quartz can be used to combine these two materials and press them into bricks under high pressure and high temperature. , Such bricks are more suitable for some foundations, paving materials such as the pavement outside the cabin of the scientific research station.

　　 Of course, it is also possible to use these bricks to build some houses. But in comparison, we have better materials. "

　　 Better material? The people present were puzzled.

　　 Yes, better materials. Wu Hao nodded and said: "This is glass. Use quartz sand to make glass, and then use glass as the main building material for our permanent lunar commercial scientific research station."

grass?

　　 Experts and leaders started to discuss it. Obviously, everyone had different opinions on Wu Hao's choice of this material to build a permanent lunar commercial research station.

　　 Is it possible to make glass on the moon? Zou Huanyi Zou Lao asked Wu Hao.

　　 Facing everyone's gaze, Wu Hao smiled and slid the transparent tablet under his hand, then showed a new picture, and then introduced to everyone.

　　Of course, we have already begun to verify this technology, and we have made very good progress in the laboratory. Wu Hao said with a smile: "It can be said that it is still very difficult to manufacture glass in the vacuum environment of the lunar surface in the harsh environment. Therefore, we cannot use our current conventional glass production methods, at least not in the initial stage.

　　 So how to make glass on the moon, we thought of an excellent plan. "

　　 said that Wu Hao deliberately sold it, and paused for a while, until everyone began to look curious, he then continued: "Why can't we print these glasses out."

print it out?

　　 The meeting room suddenly became noisy, and one of the experts in his fifties asked him: "You mean 3D printing technology."

Wu Hao smiled and nodded: "Yes, 3D printing technology. At present, 3D printing technology is mature. We can now use various consumables to print various products and models. Down to some toys, as large as airplanes and rockets. Some important parts and so on.

So why can’t we apply this technology to the moon? Melt the quartz sand on the moon into pure glass consumables, then put these glass consumables into a special 3D printer, and then dissolve them into liquid glass at high temperature again. It is printed into the required glass shape through a special printing nozzle.

　　 Then, these printed glasses are assembled and assembled to build a glass lunar capsule. "

　　 Talking, Wu Hao swiped his foldable screen, and a video was played on the big screen.

　　"This is a recorded video of the glass printed by our self-developed 3D glass printer in our laboratory. Please see it.

　　 We put these initially dissolved glass consumables into this 3D glass printer. The small electric furnace on the printer can quickly heat the glass to 1,600 Baidu to form liquid glass. At this moment, these liquid glasses are just like liquid juice, with very good fluidity. The liquid glass is introduced through the heating tube, flows into the special nozzle, and then 3d printing is used to print such a piece of glass. "

"In the initial stage, because the technology is not mature enough, the glass we printed is actually not transparent, but the surface layer is not flat. And there will be some bubbles in the glass. This is the trachoma produced during printing. Printing on the moon is in a vacuum state, and air bubbles are not allowed, but such trachoma pores will definitely affect the quality of the glass, thereby bringing safety hazards.

　　 Therefore, after our continuous experimentation and improvement ~www.readwn.com~, the quality of the glass products we print out has been improved a lot.

　　Look, this is our latest printed glass. Not only the surface is very smooth, but it also doesn't have the previous printing layer patterns. This also makes the glass very transparent, and there are no trachoma and bubbles on it. Such glass is very suitable for the construction of lunar warehouses in permanent lunar commercial scientific research stations. "

　　 Looking at the light reflected on the 70-80 cm square transparent glass shown in the video, the experts and leaders who watched nodded one after another. The glass printed by this 3D glass printer is good, but can such glass really be used to build scientific research stations? Is it safe?

　　 How thick can this kind of glass be printed? An expert asked.

　　 Wu Hao smiled and replied: "The thickest can reach two centimeters."

In response to his answer, the expert nodded slightly, but was still a little worried: "The thickness of two centimeters is not bad, but if you want to withstand the huge pressure inside and outside the field, as well as the various radiations of the universe, I am afraid it is still It's a bit weak. And if such a large glass breaks, the consequences would be disastrous."

　　 What the expert said, the other experts here nodded in agreement. Indeed, in everyone’s perception, glass is a fragile product. When glass is used to make scientific research stations, the first thing everyone thinks about is whether it is really safe. And as the expert said, once such a large glass breaks, it will cause a devastating blow to the astronauts and scientists living in the scientific research station, so we have to be cautious.