Xu Liping, male, born in 1968, is the leader of the solid fuel surface shaping team of the aerospace engine of the 7416 factory of the Fourth Research Institute of China Aerospace Science and Technology Corporation, and a national senior technician and aerospace special technician.
Since joining the workforce in 1987, he has been engaged in the extremely dangerous micro-shaping of solid power fuel surfaces of space engines, known as "working in explosive piles".
Over the past 30 years, Xu Liping has been praised as a "big country craftsman carving gunpowder" for his exquisite skills, professional attitude and dedication, and has been awarded and awarded the "Top Ten Moving Figures", "Three Qin Models", "China Skills Award", "National May Day Labor Medal", and "Moving China" Figures in the 50 years of aerospace solid power industry. On March 30, 2017, the Central Propaganda Department awarded Xu Liping the honorary title of "Model of the Times". On December 27, 2017, he won the "Great Country Craftsman Award" of the 12th Aerospace Laurel Awards.
In September 2019, he won the 7th National Moral Model Nomination Award. On September 25, 2019, Xu Liping was awarded the personal title of "The Most Beautiful Strivers".
That year, her mother sent her son as a craftsman
Decades of perseverance stem from a bloodline inheritance that has been deeply rooted in the heart since childhood.
Xu Liping's parents are both astronauts, from following his parents around when he was a child to taking up a job after completing his studies.
He witnessed the take-off of China's airlines with his eyes, and used his hands to boost the heavy weapons of one big country after another straight into the sky.
Xu Liping's mother, Wen Rongshu, was an old astronaut and the earliest employee of the plastic surgery workshop of China's solid rocket engine production base.
In the 1960s, wen Rongshu responded to the call for the construction of the country's third line, successively traveled in Sichuan and Inner Mongolia, and finally entered the depths of the Qinling Mountains, making a small screw in the national aerospace industry.
In 1987, at the age of 19, Xu Liping graduated from technical school and also joined the aerospace army.
Since entering the factory in 1987, Xu Liping has been micro-shaping the gunpowder of the missile's solid fuel engine.
The solid-fuel engine is the heart of strategic and tactical missile equipment and a key component in launching rockets from manned spacecraft.
It is manufactured in thousands of processes, one of the most demanding processes is the micro-shaping of the engine's solid fuel.
Carving solid fuel, that is, gunpowder, is extremely dangerous, and the slightest accidental spark can cause combustion or even explosion.
The mother knew best how dangerous it was to carve gunpowder, but she still gave advice to her son: Go to the workshop where I worked.
She probably knew that the space that was best for her son to display his talents was there.
Sometimes, support is undoubtedly the deepest love.
Although he was fully prepared in his heart, the first lesson of entering the factory still surprised Xu Liping.
Just arrived at the workshop, the master Wang Anmin took him to see an ignition test, the roar of the scene, the roar of the flames, the kind of mushroom clouds that rose up, and he was stunned at that time.
Xu Liping: "I was really stunned, because I really didn't expect it to be so dangerous." ”
This class left Xu Liping with a lifetime of memories.
From then on, he secretly told himself that to avoid danger, the only way to avoid danger was to be bold and careful, and to practice the knife in his hand...
"The world's first knife"
Moving a knife on gunpowder and accidentally rubbing out a spark may cause a burning explosion.
At present, gunpowder plastic surgery is a problem all over the world and cannot be completely replaced by machines.
The strength of the knife depends entirely on the workers themselves to judge whether the accuracy of the medicine surface is qualified, which directly determines the precise range of the missile.
For 28 years, he risked great dangers to carve gunpowder and was hailed as a "great country craftsman".
An extremely dangerous job, less than 20 people in China can do it, and the best of them is Xu Liping.
In order to practice hand kung fu, when the workers are resting and chatting, Xu Liping keeps thinking and practicing how to use force, how to get off the knife, comparing the basic skills of cutting, cutting, shoveling, etc., figuring out the amount of cutting, cutting angle, cutting strength, arm soreness is not put down, and when the post operation is more meticulous, humbly ask for advice.
Xu Liping did not know how many knives had been broken, his hands were getting more and more felt, and the smoothness of the medicinal surface was getting higher and higher.
Later, with a touch of his hand, he knew how to trim the medicinal surface that met the design requirements, and the products he had shaped maintained a 100% pass rate.
He is recognized as a "shaping knife", the maximum error allowed for the shaping accuracy of the solid propellant medicine surface is 0.5 mm, and the maximum error of his plastic products is definitely not more than 0.2 mm, and the thickness of an A4 paper is perfect!
Choosing a plastic surgery position means choosing to be in the company of danger.
The particularity of micro-shaping of the medicinal surface requires that when operating, there are no more than two people in the workshop.
Every time you put on the protective gear and start working, only the eyes are watching, the hands and knives are moving, and there must be no negligence or omission.
In the summer, the plant is sweltering and unbearable, and the special smell of the propellant attracts a large number of mosquitoes, which has a great impact on the operation.
In winter, a long position will numb the frozen hands, and you can only put them on the heat to bake, and then pick up the knife again.
Due to the long years of carving gunpowder in one posture and the sequelae of gunpowder poisoning, Xu Liping's body became tilted to one side, and most of his hair fell out.
Xu Liping once said: "People require 0.5 mm or 0.2 mm, and if our knife can't shovel the required thickness, it may cause the product to be scrapped." ”
Such a dangerous task, Xu Liping can no longer remember how many times to complete.
In order to eliminate potential safety hazards, Xu Liping invented and designed more than 20 kinds of pharmaceutical surface shaping tools, two of which have obtained national patents, and one is also named "Liping Knife" by the unit.
Foolproof is the norm for astronauts
"As long as a small steel ball is rolled up the medicine surface for half a meter, these highly sensitive medicines will be ignited." Its combustion temperature is as high as thousands of degrees. ”
The job of Xu Liping's team is to repair the shovel and shovel on the medicinal surface with a metal knife every day.
It is almost "working in a explosive pile", and its danger can be imagined.
Xu Liping said: "Looking back, the first mission is still vividly remembered. ”
In 1989, the development of China's key strategic model engines entered the stage of tackling tough problems.
An engine about to be tested found a large area of debonding doubts, in order not to affect the subsequent development progress, the expert group decided to dig the drug on the spot.
This means that the "shaper" has to drill into the narrow drug column of the engine filled with more than a dozen tons of gunpowder and it is difficult to turn over, dig out the filled gunpowder little by little, and look for the problem area.
The difficulties are conceivable and the dangers are self-evident.
At that time, however, almost at the same time as the instructions of the superiors, a drug digging commando team with an average age of thirty years old was formed.
Xu Liping was 21 years old that year, the youngest player.
The strong and pungent smell of solid fuel in a small space has made people dizzy and nauseous.
And they could only dig little by little with a small shovel on their knees and half lying down.
In order to prevent strong friction caused by excessive force, dig up to four or five grams of medicine at a time.
In such a highly stressful state and hypoxic working environment, in order to ensure safety, it is stipulated that each person must come out and re-enter each time he works inside for up to ten minutes.
In this way, like ants gnawing on bones, for more than two months, more than 300 kilograms of propellant were dug out, and the cause of the failure was finally successfully found.
When the news of the complete success of the repaired engine ground interview car came, the commando teammates hugged and cried with excitement.
In the winter of 2005, in order to find out the quality problems of a key model engine, it was urgent to drill holes and samples in specific parts of the engine, and Xu Liping, who was skilled in technology, took the initiative to provoke this heavy responsibility.
It was a cold winter, the space inside the engine was small, the operation was inconvenient, and it could only wear thin clothes to drill into the engine to operate.
Even so, Xu Liping was still sweating profusely in the murky air.
He kept drilling in and out of the engine, measuring, sampling, adjusting the equipment, and the pungent smell made him have a headache and could not eat, but he still did not stop working.
Due to Xu Liping's accurate judgment and operation, the predetermined samples were accurately removed and the fault was successfully found.
As long as the organization and the task requires, he will not hesitate to be 100% reliable and 100% successful, which is his strong commitment to the country and the cause.
Today, when the Shenzhou spaceship travels through space, when the beautiful myth of Chang'e Jade Rabbit is truly "staged".
When Zhu Ri and the battlefield lit up the circle of friends of the Chinese people and ignited the pride of the sons and daughters of China.
Xu Liping also felt more deeply proud of being an astronaut.
Their work has been recognized by the highest level of the motherland, and behind them is the support and praise of the vast number of compatriots!
On the road to chasing dreams, he is a "big country craftsman"
Now Xu Liping is no longer young, and at the same time, the workers who have entered the factory have left or changed their posts, only Xu Liping has always insisted, and someone asked him why, he said: "Dangerous posts always have to be done by someone!"
A working posture for many years, coupled with the irritation of gunpowder, made Xu Liping's body tilt to one side, his legs were thick and thin, and his hair fell out a lot.
In addition to worrying about the danger of his post, the family is more distressed.
His wife sometimes advised him that you worked so hard, for the sake of me and your son, and put yourself in a safe position.
Xu Liping's answer every time is, wait until the work of this piece is done.
Nearly 30 years have passed. Xu Liping's family of 11 people, in addition to the three children who are still in school, 8 people are astronauts.
Like him, my brother worked in a dangerous position and suffered extensive burns in a work accident.
Despite this, his mother, Wen Rongshu, remained a supporter of the brothers' work.
As the earliest employee of the plastic surgery workshop of the aerospace solid engine production base, the mother silently gave the brothers the greatest care and support.
Now Xu Liping, in addition to doing a good job of work safety and meticulous work, is more worried about how to let more young people quickly grow into technical backbones.
He filled the amateur schedule: writing training materials, sorting out personal skills, organizing technical research...
While patiently and hand-in-hand teaching the young people of the team how to hold the knife, get off the knife, and use force, they will draw next to the engine whenever they have free time, or hold a bunch of mechanical books to write and draw, summarize and think about the essentials of work and work experience.
He taught the experience and skills he had learned over decades of exploration and mastery to young workers without reservation.
Tell them the story of the strict and meticulous and refined predecessors of the space industry, and tell them that the explosion of the Challenger and the failure of the launch of the launch vehicle may be the effectiveness of a sealing ring or the missing installation of a screw.
He led the team staff to research, improve and innovate together, and carried out two-way training in manual and mechanical plastic surgery technology, so that all members of the group mastered the plastic surgery method of combining manual plastic surgery and mechanical plastic surgery, and completed more than 30 technical innovations.
The plastic surgery team he served as the team leader has been awarded the "Gold Medal Team" of the factory and the hospital, named "Xu Liping Skill Master Studio" by China Aerospace Science and Technology Group Corporation, and awarded the "Youth Safety Production Demonstration Post" in Shaanxi Province.
Of the seven apprentices trained by him, two have served as the deputy leaders of key teams, two have become national technicians, and the others have also become the backbone of production.
Every time you drop the knife, you can hear your own heartbeat.
You have carved a small amount of gunpowder, and there can be no difference.
Strategic missiles, manned spaceflight, and every weapon of a great power are inseparable from you.
It's like a knife in your hand, forged in twenty-six years.
You are a craftsman, you are a craftsman of a great power.