Regarding Jiang Hongwei's happiness troubles, Lin Dong didn't think too much. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 info He directly asked He Dongcheng to recruit another group of people in China, and then sent a group of mining personnel from the previous reserve over - at the same time, the pressure on personnel is a bit great to mine the metal Taihe gold mine.

Of course, the people who asked to come this time were very positive. Because two of the employees were hit by stray bullets, they went back to China to recuperate, but they were recuperated with five-figure medical expenses, bonuses and full pay!

The other injured security guards also recuperated with full pay. This time, as long as the security guards who participated in the war and the reserve members who took the initiative to apply, as well as the stretcher members, each person will be rewarded with 10,000 yuan, and the outstanding performance will be double or even triple!

After the news of such a high bonus reached the country, many of those who did not come over regretted it, and they just went around the battlefield and got such good treatment, who wouldn't want to go? Besides, in order to set up a model, Changying Group directly took a lot of photos and sent them back to China, and publicized the heroic security guards and mining personnel in the process of participating in the war this time.

"Mr. Lin, this is the first batch of metal powder!"

Mining is a series of processes that are originally very water-intensive. There is a great shortage of water here in Afghanistan, especially in the area that Lin Dong is looking for, and it is very difficult to find a suitable water source.

Even the drinking water in the camp was found by digging wells - the Taha tribe had water, but that small water source needed to supply tens of thousands of people to drink, and it was not very abundant, but fortunately there was an underground water source in a relatively deep underground place. What is lacking on Lin Dong's side, that is, there is no shortage of machinery, there is no problem in drilling wells, and the water quality is good.

But if this water is used for mining and beneficiation, it is a bit more difficult.

Of course, this is not difficult for Lin Dong, dry beneficiation is really not a thing for Lin Dong. However, it is not a metal block that is formed, but a metal powder. And the purity is not very high.

Of course, in fact this is already enough. These metal powders are sent back to China, where they are further processed to form ingots, which are then sent to metallurgical plants to be processed into the required alloys for further processing.

Lin Dong looked at the metal powder sent by Xia Guangcheng, which was different from the metal ingot formed in his memory, the metal powder had a little silver ash, but he immediately "recognized" that this was indeed the metal he was looking for this time! The explanation of the baht in Chinese characters was originally a very small unit of measurement, so there will be an idiom that the baht must be compared.

However, the baht here refers to the current grayish-white, but actually bright white metal, which is very small on the earth, which is one of the reasons why the word "baht" is named.

But that's where nature wonders, and while there are very few mines of this metal anywhere else in the world, it's here in Afghanistan that there is one mine that is of very high quality.

Just like the rhenium metal mentioned above, there is no pure metal ore found in the world, but later rhenium metal was found in the four northern islands, and later in the South China Sea - this is what Lin Dong told Ji Bing. It should have been discovered more than a dozen years later.

The characteristics of this metal baht are more obvious, high temperature and high pressure resistance, corrosion resistance, and the coating is formed with baht on the surface of the metal, which can resist the erosion of various cosmic rays, and is a very excellent space material.

Because it was a metal that was discovered later, it had not been applied at all now, and if it weren't for Lin Dong having this information in his mind, he would not have found this mine here.

In parallel space, this mine was discovered by French geologists, but because of geographical relations, the ownership of this mine was finally given to Lao Mei. Huaxia still paid a high price to buy a very small part of the metal from Lao Mei, which is quite a lot in the asteroid belt, but there are no large mines found on the earth for many years in later generations.

Of course, in this life, Lin Dong doesn't care so much, there are more good things on this earth, and there are more good things occupied by Lao Mei, and Lin Dong doesn't have a little psychological burden at all when he does this kind of thing!

Truckloads of supplies were pulled to the camp, and a considerable part of them were sent to the Taha tribe, which made the elders of the Taha tribe really appreciate the trustworthiness of the Changying Group.

Moreover, the day after the Taha tribe got the road construction permit, Lin Dong began to purchase materials, bid for the construction team and apply for various procedures through the Changying Group. Because it is a special case, within a month, the first truckload of materials for road repair has been pulled to the port, ready to pass the customs and then start building the road!

With the construction speed of Huaxia, it is conceivable that this section of hundreds of kilometers of asphalt road may not take too long to be completed!

Lin Dong did not wait for the whole line to be completed, and after staying in the camp for half a year, he returned with the first batch of security guards and mining employees, and returned with them, as well as about ten tons of metal baht powder that had been initially processed.

According to Lin Dong's calculations, these rough-processed metal baht can eventually get about five tons of metal baht. But even these five tons, for now, are enough for the Changying Group to last for more than a decade - the most important role of the baht is to be processed into alloys and then applied to spacecraft. Pure metals, on the contrary, cannot fully reflect their role.

In the operation room of Tengjiao Group, Xu Xiaofeng looked depressed: "Obviously, I have experimented with the data in the laboratory, but once I reach the stage of simulation experiments, I can't resist radiation and high temperature, and the existing materials have almost been tried, do you have to wait until Mr. Lin comes back?" ”

Now, under the guidance of Liu Zongyi, he has successfully completed the engine manufacturing of small aircraft, and passed the verification, and successfully applied it to a domestic production of small aircraft.

But Xu Xiaofeng is obviously not satisfied, and now Changying Group has given him such great support, which makes him have a stronger idea of studying space engines.

However, although the current space engine is not a particularly sci-fi technology, it is very difficult to find engine materials that require high temperature, high pressure, corrosion resistance, and the ability to freely shuttle back and forth in the sky.

Xu Xiaofeng has tested a lot of materials, and there will always be problems of one kind or another.

Space engines, sure enough, are not so easy to study!

Now Huaxia, Lao Mei and Lao Maozi all have corresponding technologies, but the degree of secrecy of that technology is equivalent to the core secrets of the state, and as far as Xu Xiaofeng is concerned, these technologies are not very perfect, and they are only applied to large probes, space shuttles and space stations, and do not meet his requirements for the technology applied to aerospace aircraft.

Yourself, you have to continue to work hard!

ps: Thank you for the monthly ticket support of the book friend lushaitan1 and the son of Chinese studies, and thank you for your subscription and recommendation votes! Monday started again, keep up the good work! (To be continued.) )