News Details

Amidst the splashing yellow arc and the clanging sound of metal collision, the Wylton Dazhou Mechanical Maintenance Class held a skill competition focused on the hard power of "steel tailors". Six maintenance workers competed under the technical requirements of "single-sided welding and double-sided forming" (a rigorous process that requires welding only from one side but forming both sides at once) for the prefabrication of the first phase HRS steam injector pipeline. This assessment is not only a comprehensive test of the skills of the maintenance team, but also an important training ground for the elite forging team and reserve technical service talents in Wylton Dazhou.

Practical Quenching: The True Chapter of the Millimeter Controversy

A 310 stainless steel pipe with a diameter of 1800 × 1500mm is lying still at the workstation, waiting for the precision carving of the "steel tailors". Participants are required to complete the flat welding base and cover operations within 150 minutes. The internal and external forming errors of the weld seam must be strictly controlled within 0.2mm, and there must be no defects such as weld beads, pores, slag inclusions, etc. on the surface. The final formed weld seam must have uniform texture and consistent width, like mechanical carving.

With the whistle of the chief examiner Zou Xuebao, players such as Chen Gaojian, Zhao Qiang, and Li Zhou quickly entered the state. They held a welding gun and accurately cut into the seam at a 75 degree angle. The welding rod moved flexibly between the 2.5mm gap, and the molten pool produced silver ripples. The thermal expansion coefficient of 310 stainless steel is 1.5 times that of carbon steel, and the welding line energy must be precisely controlled within 12kJ/cm. ”Chen Gaojian explained the technical essentials to the evaluation team while operating.

Assessment height simulates various extreme working conditions on the production site - welders may need to climb up and weld, or bend down to weld on the side wall, challenging difficult welding movements from multiple angles. Despite the harsh environment, all six contestants completed the welding task within the specified time, demonstrating solid adaptability.

Strict evaluation: 0.3mm quality red line

The evaluation team uses non-destructive testing agents to conduct comprehensive inspections of the welds. The excess height of the weld must be controlled within 0-2mm. If there is slag inclusion or porosity of 0.3mm or more on the outer surface, it is judged as unqualified. ”The assessment team holds a handheld measuring instrument and strictly compares the standards to ensure accurate scoring. In the end, although all six sets of welded components had minor process defects, Chen Gaojian took the lead with an average score of 66 points.

Using exams to promote learning: Starting from the advancement of elite soldiers

This assessment is not only about looking in the mirror to find gaps, but also about tightening screws to promote improvement. There is still room for improvement in our welding skills, and we must strengthen targeted special training and deepen research on various welding processes, "said the person in charge of the machine repair team at the summary meeting. It is reported that Wylton Dazhou will continue to promote the "practical assessment+high-intensity training" mechanism starting from this assessment. By increasing the frequency of skill competitions and improving the difficulty of training, it will continue to consolidate the construction of talent echelon and provide more "technical pioneers" for external technical services.

Behind this welding assessment is Wylton Dazhou adherence to the "craftsman spirit" and vivid practice of the technical concept of "striving for excellence and perfection". Pursuing perfection in the slightest detail and honing craftsmanship in the flickering arc light - this team of "steel tailors" is starting from assessment and constantly climbing towards the pinnacle of technology.