[Strugglers are Youthful Frontline Story] Meng Fandong: To ensure quality, "one rib" is necessary

　　At 9 p.m., in the crane debugging area of ​​XCMG Heavy Machinery Co., Ltd., a crane was still being debugged overtime.

Under the bright working lights, the long arm of the crane appears more and more "slender".

　　After an unknown amount of time, a young man with clothes covered in lubricating oil crawled out from the tail of the crane's long arm.

"It's all fine." He said to his colleague next to him, a smile on his face - "Never let go of any detail," and he did it again.

　　These cranes have long been ordered for export, and after testing and debugging, they will board a large freighter and transport them to Canada.

The young man who climbed out from the tail of the long arm was named Meng Fandong, a crane debugging technician of XCMG Heavy Machinery Co., Ltd. In the three years since he arrived at the workshop, the cranes he debugged have not had a single failure.

　　In front of Meng Fandong, his eyes were focused, and his gestures were not in a hurry.

Who would have thought that he was not yet 22 years old.

　　Meng Fandong's calmness stems from his five-year fitter training at XCMG Technician College.

"Two sets of workpieces must be practiced every day, and it takes about 12 hours. The most important thing for a fitter is the hand feel. The limit of manual machining accuracy can reach 1/20 of the diameter of a hair, so you must be strong and skillful when grinding." In order to polish Good for every workpiece, Meng Fandong often rubs his hands without knowing it, the calluses on his hands grow and fall off, and the cracks in the tiger's mouth are getting longer and longer.

　　During school, Meng Fandong got the nickname of "one tendon".

In the second year of his training in the school's "Fitter Elite Class", because the data value was not accurate to three decimal places, a double dovetail concave-convex matching workpiece was loose during assembly.

At 2 o'clock in the morning, he made a new set of workpieces, and the accuracy of the matching gap was less than 0.02mm.

　　Back to the dormitory is more than 3 o'clock in the morning.

The classmates laughed at him: "You are fighting for your life!" Meng Fandong muttered: "In order to realize your dream as soon as possible, why not fight?"

　　What is Meng Fandong's dream?

Since he entered XCMG Technician College at the age of 15, he has been with these "iron lumps" day and night, and he wants to become a technical master in the fitter industry.

　　"One tendon" is not only reflected in training, but also brought to work.

　　Not long after his internship at XCMG, Xu Ruiquan, the master of the workshop, took Meng Fandong to debug a new product that was exported abroad.

Master Xu said: "The screen shows a sudden change in the signal. But this situation only occurred once in the entire debugging process, and it may be very difficult to troubleshoot hidden dangers."

　　Meng Fandong said nothing, climbed into the tail of the 11-meter-long crane boom to find out.

This is a very narrow space with a diameter of about 1.2 meters and a telescopic oil cylinder in the center. Meng Fandong, who is 1.75 meters tall, can't turn his body, so he can only ride on the oil cylinder, curled up and inspected.

　　Once, twice, three times... On the fifth day, Meng Fandong climbed into the tail of the crane's boom for the eighth time. He finally discovered the hidden danger: the cylinder pin arm position detection switch was two millimeters away from the exact position.

Meng Fandong immediately adjusted the distance of the detection position and screwed the metal sensor in by two millimeters to eliminate the hidden danger.

Master Xu showed a gratified smile on his face: "The fitter industry needs this kind of craftsman spirit of 'one tendon'!"

　　Meng Fandong is a caring person.

He recorded the errors or key points that were easy to occur in the process of debugging the crane, and sorted them into 10 sets of small test papers, so that the new debugging staff of the company could quickly find the solution to the problem.

Today, new employees treat these exam papers as a treasure trove.

　　On October 16, 2021, in Chengdu International Expo City, the scene of the 7th National Staff Vocational Skills Competition was brightly lit.

The vise on the field is 10 cm higher than the one he usually trains for. Meng Fandong adapts while processing.

Line drawing, drilling, and marking, strictly follow the steps and requirements of the usual training, and be meticulous.

In the weather of 13 degrees Celsius, beads of sweat dripped onto the workbench.

　　6 hours to come!

Meng Fandong delivered a rotating assembly workpiece with an accuracy of 0.01 mm and a combination of 7 parts.

　　What is the concept of 0.01 mm?

Equivalent to 1/6 of the diameter of a hair.

The referees were amazed.

The 4 judges held up Meng Fandong's works and checked them repeatedly under the light: "Exquisite craftsmanship, perfect!" In this national competition where experts gathered, Meng Fandong won the fitter group championship.

　　With the belief that "guaranteeing quality requires 'one tendon'", Meng Fandong and his colleagues cooperated to overcome various technical problems.

He has successively participated in 3 key research projects including weight interchangeability and reduction of ultra-early pressure adjustment feedback, which has greatly improved the safety of the debugging process and product consistency; the QC quality improvement project he participated in to reduce product gyration and shaking was awarded 2021 The first prize of the annual National Machinery Industry Excellent Quality Management Team Activities Achievements.

　　"Product is character, quality is life." This is Meng Fandong's declaration on the quality of his work. He will continue to sharpen his skills and break through himself to realize his life dream of becoming a technical master.

(Reporter Su Yan of this newspaper)