Xu Liping's deeds
1. acceptance speech
Every time I drop my knife, I can hear my heartbeat. There can't be a moment on the powder. This is really a close call. Strategic missiles, manned space flight, and every weapon of a big country cannot be separated from you. Just like the knife in your hand, it has been forged for 26 years. You are a craftsman, you are a great craftsman.
2. Character stories
Xu Liping, senior technician of 74 16 Factory of the Fourth Research Institute of China Aerospace Science and Technology Corporation. Since 1987 entered the factory, it has been micro-shaping the missile solid fuel engine propellant. If you use a knife on gunpowder, you may generate sparks if you are not careful, which may lead to combustion and explosion. At present, powder forming is a difficult problem all over the world and cannot be completely replaced by machines. The strength of cutting depends entirely on the judgment of the workers themselves. Whether the powder surface accuracy is qualified or not directly determines the accurate range of the missile. 0.5 mm is the maximum permissible error of solid motor powder surface accuracy, while Xu Liping's hand-carved powder surface error is less than 0.2 mm, which is perfect. In order to eliminate potential safety hazards, Xu Liping also designed and invented more than 20 kinds of powder shaping tools, two of which were patented by the state, and one was named "flat knife" by the company. Due to years of carving gunpowder in one posture and the sequelae of gunpowder poisoning, Xu Liping's body became tilted to one side and his hair lost more than half. For 28 years, he carved gunpowder at great risk and was known as "a great country craftsman".
There are less than 20 people in China who can do this extremely dangerous job, the best of which is Xu Liping.
Xu Liping is engaged in the molding of rocket solid fuel engine powder, which is called carving powder. This technology is a worldwide problem and cannot be completely replaced by machines. The cutting strength depends entirely on the workers' own judgment, and the precision of powder surface directly determines whether the missile can achieve accurate range on the predetermined orbit. A little carelessness in operation will produce sparks, which will trigger the instantaneous explosion of high-energy gunpowder.
"People require 0.5 mm or 0.2 mm. If we can't shovel the required thickness with this knife, the product may be scrapped." Xu Liping said.
1989, there was a problem with a key engine in China, and the filled powder needed to be stripped. Xu Liping volunteered to join the commandos. "It can be said that our factory drilled into the powder pile for the first time in history, and the amount of medicine dug was particularly large."
In the engine shell full of gunpowder, there is only one operator lying and kneeling. I dig medicine very carefully with a wooden shovel and a copper shovel, and I can only dig four or five grams at a time. High tension and lack of oxygen make people work for more than ten minutes at a time. "I can hear my heart beating except the rustling of shoveling medicine." Xu Liping recalled.
In the extremely difficult two months, Xu Liping and his teammates dug up more than 300 kilograms of drugs and successfully ruled out the engine failure. But because I kept a posture for a long time, my legs could hardly walk after work.
Xu Liping can't remember how many times he has completed such a dangerous task. In order to eliminate potential safety hazards, Xu Liping invented and designed more than 20 kinds of powder molding tools, two of which were patented by the state, and one was named "flat knife" by the company.
Twenty-eight years later, Xu Liping is no longer young. At the same time, all the workers who entered the factory have left or jumped ship. Only Xu Liping has been insisting. Someone asked him why, and he said, "Someone has to do dangerous work!" "
Xu Liping's character story
Xu Liping, male, born in June, 1968, from Liyang, Jiangsu, Han nationality, junior college. Since 1987 joined, he has been working in Xi 'an Aerospace Chemical Power Plant, and now he is the team leader of this position.
In 2008, he was awarded a space technology expert by China Aerospace Science and Technology Corporation. 20 12 won the national technical expert, the aerospace fund award, and the top ten moving figures of the Fourth Academy of Aerospace; 20 13 was elected as the "moral model" of Shaanxi national defense industry office system; 20 14 was elected as the first most beautiful astronaut of China Aerospace Science and Technology Corporation; 20 14 was awarded the honorary title of "Shaanxi Good Man" in August in Shaanxi Province.
For 28 years, Xu Liping has been sticking to the post of repairing the powder surface of solid rocket motor, that is, "working in the explosive pile". He takes a sharp knife every day and cuts a shovel in the solid rocket engine fuel. In nearly 10000 days and nights, he practiced his professional responsibility.
Love for the post
"Shaping" refers to the fine repair of propellant surface in rocket engine. At the end of last century, a national key engine that was about to be debugged in the Fourth Aerospace Institute was stuck. In order to ensure the development progress, thoroughly find out the reasons and reduce the loss of millions of yuan, the expert group of the Fourth Academy of Aerospace made a difficult decision after repeated argumentation: dig drugs on the spot and investigate and repair them! At that time, Xu Liping, who was less than 2 1 year old, volunteered to join the drug-digging commando.
Not to mention the high risk of the operation itself makes people feel a strong sense of tension. The narrow operation space where only one operator is allowed to lie down and kneel down, and the toxic pungent smell emitted by the propellant in the machine are all serious challenges to every commando. High tension and lack of oxygen make everyone work only 10 minutes at a time, and Xu Liping always insists on working 5 or 6 minutes more. You can only dig 4 to 5 grams of propellant at a time. It is in this difficult persistence that Xu Liping and his teammates dug up more than 300 kilograms of propellant with extraordinary courage for more than two months, and the engine was successfully tested after repair!
Beating heart
In recent years, with the progress of technological innovation, advanced NC forming technology has gradually entered the field of vision of powder surface forming technology. Xu Liping, the head of the plastic surgery team in 2005, devoted himself to the installation, debugging and experiment of the first plastic surgery machine in the factory. By studying the safety device of shaper, he put forward more than 20 reform suggestions, such as modifying chip suction device and installing interlocking device, and improved the safety guarantee system of equipment. And self-taught the operation and control knowledge of plastic surgery machines, and undertook the core task of plastic surgery programming. Through unremitting efforts, he gradually explored the molding parameters suitable for various burning rate propellants, and designed special molding tools with special profiles, which won two national patents and filled the gap in the industry.
In the continuous exploration and practice, Xu Liping is diligent in thinking and summarizing, and his papers and QC reports have won many awards in the hospital and factory; Under his leadership, the team completed more than 30 technological innovations; Compiled a number of teaching materials, such as "Plastic Machine Training Textbook". Among the seven apprentices he trained, two became the backbone of the team, two became national technicians, and the rest were the production backbone of the team.
On the occasion of celebrating the 50th anniversary of China's space solid enterprise, the central mainstream media interviewed Xu Liping. When he told the interviewer a little-known but touching story about their post of drug surface plastic surgery, the reporter was deeply moved. This is an unpretentious space worker, who silently contributes to the realization of the ideal of serving the country by space.
Xu Liping's deeds aroused enthusiastic response from the society.
After the news that Xu Liping, a senior technician of China Aerospace Science and Technology Corporation, was elected as the person of the year in Touching China 20 15 came out, it had a warm response inside and outside the space in recent days.
Once the news about Xu Liping's election was released by Guan Wei of China Aerospace Science and Technology Corporation, the number of hits exceeded 10,000 in just a few days, and the number of likes exceeded 400.
Many astronauts forwarded the news on WeChat and other media and exchanged their views on human deeds. "For decades, I have devoted myself to the brink of death every day, which is admirable!" "The more selfless, the more fearless; The more common, the greater. Like Xu Liping, a great craftsman who touched China! "
Many people have realized the value of the space spirit from Xu Liping: "For many years, astronauts have been seldom publicized by the mass media because of their special occupations. I sincerely hope that this platform can be widely publicized, so that the aerospace spirit has a long history and touched China! "
People from the Fourth Hospital, which lives and works in Shaanxi Province and Xu Liping, also expressed their opinions and praised them. They are proud that they and Xu Liping are both from Shaanxi and astronauts from the Fourth Academy.
Someone commented on WeChat: "Are you and I used to this era? Little people? A live role? Are you not surprised or unhappy? That day. However, Xu Liping, like a jasmine flower in spring, quietly bloomed in the corner and suddenly touched us? Spring of spirit? . Let's follow the example of Xu Liping around us and make Qian Qian a millionaire? Xu Liping? Let's fly into space together and win. "
Others said, "Knowing, mastering, worshiping and fearing skills, Xu Liping showed a thorough and pure pursuit and spirit of artisans. His silent, ordinary post, deep ambition to serve the country; In less than a second, we strive for the perfection of creation. Because of the persistence of an idea and the persistence of a lifetime, the weapons of the country have been engraved in all the cuts, and the backbone of the nation has been propped up bit by bit. "
In addition, on CCTV and other media, netizens were moved by Xu Liping's deeds and expressed their admiration for his dedication and good wishes for China's space industry.
Many people have left messages saying that astronauts in mysterious posts like Xu Liping are far away from their daily lives, but their professionalism and work silently reflect the core values of socialism, which is more touching and injects extremely valuable positive energy into the whole society.
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