The First Phase Of The "Golden Welder" Welding Service Skills Training Of Lingong Heavy Machinery Concluded Successfully

The first phase of the "Golden Welder" welding service skills training of Lingong Heavy Machinery concluded successfully

In the field of mining equipment maintenance, welding technology plays a decisive role in the service life and safety of the equipment. The riveting and welding of super-heavy components such as mining mill end covers and ring gears determines whether the service team can fulfill its promise of "response at any time". This time, Lingong Heavy Machinery brought together welders from service providers across the country for training, abandoning false practices and focusing on one thing only: to enable you to develop excellent skills in real fault scenarios.

Theoretical in-depth study of the core points of anchoring mining machine welding

Mine carts and mining excavations used in mines are subjected to head-to-head contact with stones and ores all year round. Cracking of the frame and wear and tear of structural parts are as common as daily occurrences. Once the welding work fails to meet qualified standards, it will be difficult for the equipment to operate normally in the mining area. Even if it only lasts for one day, the owner will suffer losses of hundreds of thousands. The training course conducted this time did not preach some vague theoretical content, but directly brought out the typical failure cases that have appeared in the market in the past year.

Veterans who have been working as lecturers for more than ten years abandoned the clichés in the books, took the actual damaged parts, pointed to the cracks on them, and explained to the students that the reason for the cracks at this location is a material problem or a stress problem, which electrode should be used during welding, and what value should the current be adjusted to. The students listened and recorded at the scene, and they fully understood the difficult and complicated diseases that they had been unable to deal with in the past.

Practical training and reenacting scenes to hone your skills

Although understanding the theory is not enough to complete it, but if you don't do it well in practice, it is equivalent to zero. There is a real mine car frame placed in the training venue. There are fractures of longitudinal beams and misalignment of cross beams that are usually seen in repair shops. They are now reproduced as they are. The students were divided into groups and then took turns to perform operations. From grinding and beveling to layered welding, each step had to be completed by themselves.

There is a master from the mining area of ​​Inner Mongolia who has been engaged in welding work for eight years. He thinks that his skills are quite good. However, during the process of simulating frame splicing, flaws eventually appeared. The instructor stopped immediately on the spot, pointing out that his technique was too fast, which resulted in insufficient penetration. Afterwards, the parameters were adjusted again. After the adjustment, the weld seam formed by the second welding was obviously full and even. This method of immediate error correction was more effective than the half-year exploration he had to do on his own.

Strict inspection: each weld must pass three levels

The completion of welding is not considered the end. Each weld must undergo three different levels of inspection. The first level is the appearance. The person responsible for instructing and imparting knowledge used a flashlight to illuminate Lingong Heavy Machinery one by one. The first phase of the "Golden Welder" welding service skills training came to a successful conclusion. All the so-called slag inclusions, welding nodules and uneven and neat forming conditions were recorded. The next step is internal quality, using professional inspection and measuring equipment to check for invisible texture gaps and small holes.

The third level is a test of mentality. The instructor puts everyone's welded test pieces together for comparison, displaying the good and bad quality ones, so that everyone can check the differences by themselves. A young welder discovered that the test piece he was welding had cracks, and his face turned red on the spot. However, it was precisely this ruthless on-site teaching method that made him remember the key point that the current needs to be reduced by ten amps during vertical welding.

Two-way empowerment of service providers and OEMs to grow together

The trainees who came this time are all the elite backbones of service providers across the country. After they return, they will rivet and weld super-heavy components such as mining mill end covers and ring gears , and they must take on the responsibility of passing on the technology to local teams. Lingong Heavy Machinery not only provides training venues and instructors, but also builds technical files for each service provider to record each person's areas of expertise and projects to be improved.

After the training, all trainees’ mobile phones were added to the technical support group. In the future, when encountering difficult problems in the mining area, you can take videos at any time and send them to the group, and the manufacturer's engineers will provide guidance online. This model of continuous technical support makes service providers feel that they have a strong technical support behind them.

The training effect of data speaking can stand verification

After five days of training, all trainees passed the theoretical examination and practical assessment. What is more critical is the change in the data. During the preliminary test before the training, only 60% of the personnel could successfully weld qualified test pieces at one time. By the time of graduation, this proportion reached 98%. There was a student who passed the test after welding more than a dozen times. When he was about to leave, he specifically asked for a piece of test piece and took it back as a souvenir, claiming that he wanted to remind himself at all times to know where the standard was.

A week after these students returned to the mining area, SDLG conducted a follow-up visit. The data shows that the rework rate of the welding repairs they handle, such as the riveting and welding of super-heavy parts such as mining mill end covers and ring gears , has been reduced by 70% compared to before the training. Feedback from owners also stated that the equipment operating cycle after repairs was significantly extended.

The golden sign depends on every weld to polish it

In the workshop of Lingong Heavy Machinery, there is a slogan like this, which reads: "Leaders who do not value product quality will step down, and workers who do not value product quality will be laid off." Moreover, this sentence is also applicable in the service field. Welding service skills training is not just a formality, but it is about engraving this quality awareness into the bones of every service personnel.

Although mining equipment maintenance has never been the kind of work that people can deal with easily, it is precisely the careful welding of the welds and the proper elimination of faults that make "always online" more than just a slogan. When every weld can withstand the severe test of the harsh environment of the mining area, the trust of the brand will naturally be established.

Under such extreme working conditions as mines, what do you think is the most difficult technical link to overcome during equipment maintenance? You are welcome to share your experience and opinions in the comment area, and give a like so that more peers can see this article, communicate together and make progress.