#记录我的2024#
In the development of continental aviation, there is such an obscure but extremely important profession, that is, gunpowder engraver.
I believe that friends who have watched this year's Chinese New Year movie "Me and My Fathers" have a preliminary understanding of the profession of gunpowder engraver, but in fact, the profession of gunpowder carver was originally more risky in the movie, so let me reveal the mystery of the profession of gunpowder carver.
The CCTV program "Craftsman of the Great Country" brutally exposed the true face of the gunpowder engraver
In the movie "My Father and Me", there is a plot that pays tribute to the gunpowder carver, and the gunpowder carver played by Zhang Ziyi in the movie works very seriously, holding the knife tightly in his hand, and there are fine beads of sweat on his forehead.
It's a pity that the assistant is a newcomer and has not yet developed a cautious character, so he accidentally touched the knife in Zhang Ziyi's hand, but such a small act led to such an irreparable consequence as the sudden detonation of high-risk fuel.
There are many people who have commented in the barrage when they see this scene in the movie, which is too exaggerated, but I have to criticize the publishers of these statements for being too ignorant.
It is not an exaggeration to say that a small mistake can lead to irreparable consequences for gunpowder carvers, and the slightest disturbance in the work of gunpowder carvers is a life-threatening matter for them.
Gunpowder carvers are a little-known profession whose daily job is to carve out the fuel needed to launch rockets to ensure that they can soar into the sky.
This work requires extraordinary care, once the amount of fuel engraving deviation may lead to the rocket can not fly accurately, in order to ensure accuracy, the staff of the gunpowder engraver usually wear gloves and use special engraving knives.
It's just that for the gunpowder carver himself, long-term exposure to flammable substances is easy to cause a blasting accident, but for the development of the motherland's aviation industry, every gunpowder carver practitioner has a resolute face, and they all choose to do it for the future of the motherland without hesitation. Regardless of whether such a profession will last forever, their spirit of sacrificing their lives for the sake of the motherland is worthy of the awe of all Chinese people.
In order to let future generations remember the unsung heroes who have contributed to the motherland, and in order to let the people of the world see our Chinese "craftsmen", CCTV has launched a program called "Chinese Dream: Great Country Craftsmen", and the program team invited many great "great country craftsmen", including Xu Liping, a senior gunpowder carver in the mainland.
Xu Liping has made great achievements in the field of gunpowder engraving, and he is a serious worker and an extraordinary skill, and he is able to control the dose error of difficult-to-mix solid fuels to less than 0.3 mm.
In order to better carry out the work of fuel engraving and improve the overall work efficiency in the field of solid gunpowder engraving, Xu Liping has launched nearly 30 sets of special tools for gunpowder engraving after accumulating many years of work experience. Xu Liping's inventions have greatly improved the efficiency of fuel carvers who have just started to practice, and also encouraged the vigorous development of the fuel carving field in mainland China.
In the program of "Chinese Dream: Great Country Craftsman", the program team started with an interview with Xu Liping, introducing the great and highly sacrificial profession of gunpowder carver to the public.
Although Xu Liping is still very young, his expression is full of maturity and stability that does not belong to this age, he faced the camera and calmly opened his mouth to introduce the unknown side of gunpowder carving to the public in front of the TV series.
"Gunpowder is a very dangerous, extremely unstable substance, once accidentally ignited, it will burn very quickly in a short period of time, and its power is also very large, it can level the gunpowder carving room in an instant, once the staff encounters such an accident, there is almost no possibility of survival. Accidents are common in such an employment environment, including in our own positions. ”
Xu Liping was so calm as usual when he said these terrifying words. Presumably, he has already learned to put aside the province of trouble in his day-to-day work, and only has the safety of the motherland in his heart, and has no personal gains or losses.
In this program of "Great Country Craftsman", Xu Liping answered for us as movie audiences why the gunpowder carver played by Zhang Ziyi in the movie "My Father and Me" will live and die in an instant, that is because the properties of solid fuel contained in solid rockets are very complex.
It contains a variety of mixtures, and gases, tools and materials are extremely dangerous. Therefore, in the movie, when the assistant of the gunpowder engraver accidentally touches the knife used for engraving, it will stir up a thousand waves with one stone, leading to tragedy.
Knowing that solid fuels are so dangerous, does the mainland have to use solid fuels?
I believe that many people about the central news will remember the feat of the mainland in June this year, in June 2023, the mainland successfully launched the rocket Lijian 1, behind such a world-renowned craftsman like Xu Liping is indispensable.
At this time, some people will ask, why is the mainland obsessed with using solid fuel? Like Musk, who uses liquid fuel to make rockets, can't it launch hundreds of rockets into the sky a year?
In fact, this is not due to the fact that the continent's technology is not up to standard, but that solid fuel and liquid fuel themselves are two categories, and for the continental aviation field, both solid fuel and liquid fuel are indispensable.
The mainland can also use liquid fuel to produce very good rocket results, for example, the continent's Long March series is made of typical liquid fuel. Solid fuel is suitable for providing propulsion to a rocket during the initial take-off phase, and can be used as a booster to send the rocket into space, although the risk of rocket builders coming into contact with solid fuel is correspondingly greater.
As a highly fluid substance, liquid fuel can be used as a lubricant for rockets, which can be used to fill the material gaps in the gunpowder fuel, save unnecessary rocket production costs, and liquid fuel can also adjust the combustion power of solid fuel with materials to avoid the situation that the thrust is too strong or too weak, so as to ensure the flight rate of the rocket and meet the various needs of rocket launchers.
In addition, the rocket may stall during flight, and liquid fuel is needed to play a role. Liquid fuel can circulate in the rocket to achieve the effect of re-ignition, and the firepower of the rocket can be flexibly adjusted, and can be recycled many times to save energy.
It can be seen that solid fuel and liquid fuel have their own advantages and disadvantages, although solid fuel is very dangerous in carving, but it still has its unique irreplaceability, liquid fuel is more flexible, solid fuel is more efficient, the continent will work together in the aerospace field, is to meet a variety of needs in the actual situation.
Not only the aerospace field needs to have a place for solid fuels, but also the status of solid fuels in the fields of national defense, military, and scientific research is also very important.
For example, in the production of missiles, solid fuel has a stronger blasting capability than the safer liquid fuel, and when faced with a dangerous situation, as soon as the enemy comes into contact with a missile made of solid fuel, the missile will be quickly detonated, so as not to give the "thieves" who want to covet the precious territory of the mainland to take advantage of it. As a result, solid fuels will also be preferred in some cases.
The United States has long ceased to use solid fuels?
Most of the countries in the world that have mastered rocket launch technology insist on choosing both solid and liquid fuels, as do the mainland, and both fuels are developed together.
But those who have learned about the international military field know one thing, the United States never uses solid fuel to make rockets. Is there any hidden meaning in this? Could it be that the United States no longer needs manpower to carve gunpowder fuel?
In fact, it is. The reason is that the United States has successfully invented and mastered the fuel 3D printing technology, and it is no longer necessary to use manpower to engrave solid fuel.
Although the United States is trouble-free, but in terms of accuracy and handling of emergencies, the mainland believes that the profession of gunpowder engraver is far from being easily replaced by scientific and technological means, once the fuel is alienated after contact with the air, 3D printing technology can not accurately remove excess tissue, or someone needs to be on the side around the clock for testing.
Each of these gunpowder carvers, who work intensively in relatively confined spaces with large quantities of high-risk fuels every day, are the unsung heroes who have pushed China's aerospace industry to flourish.
In fact, the mainland is also actively researching and introducing 3D printing technology on fuel, although the current 3D printing technology does not have the conditions for large-scale promotion, but I believe that with the vigorous development of our great motherland.
One day, the mainland will be able to improve the current dangerous practice of gunpowder carvers, and ensure the safety of the lives of the builders who have made great contributions to the motherland to the greatest extent, instead of just being a "sung hero" who sounds lofty and majestic, but in fact has no substantial benefits.
I wish our prosperous motherland more and more considerable progress in the field of science and technology, and I hope that all gunpowder carvers can avoid the rapid changes of gunpowder.
Although rocket carvers are great, I still hope that one day such a high-risk profession as gunpowder carver will disappear from the career planning of Chinese as soon as possible, be replaced by more advanced technology, and eventually become a historical mark in the development process of the world.
Due to the rules of the platform, you will only be recognized as a fan if you have more interaction with me. If you like my articles, you can click "Follow" and receive the article push as soon as you become a fan.