In the rustle, his breathing was extremely light and slow, with the welding torch in his hand, and he seemed to be caught by a magnet. He was Song Kai, the welder of Offshore Oil Engineering Co., Ltd. More than 20 technological innovations, a total of more than 40,000 meters of welds, longer than the Beijing Second Ring Road, 100% of the welding pass rate in many difficult projects, handle welding, dioxygen welding, submerged arc welding, argon Proficient in everything like arc welding, this dazzling report card belongs to Song Kai.

Not afraid of tigers

Thirteen years ago, 24-year-old Song Kai came to CNOOC Engineering. With tenacity and years of learning skills, Song Kai not only won the second place in the second "Jacques Cup" International Welding Competition, but also taught himself Become a good hand for gouging rework.

The BOG (flash steam) recondenser for the Hainan LNG (liquefied natural gas) project is the first large and thick-walled dual-grade stainless steel equipment in China. In the project, he successfully developed the submerged arc welding technology of large thick-wall stainless steel, realized the efficient welding of large-thick stainless steel materials, and introduced the plasma gouging technology into the hole-opening technology. In the BOG project alone, more than 300,000 yuan was saved, the construction period was shortened by 10%, and the welding qualification rate was 100%.

The space is closed and the heat is hard to deal with. Song Kai never seems to be affected. The welding hands are always so steady, and the welding seams are always smooth and tidy.

When someone asked him what experience he had worth sharing, he said that the most important thing is calmness: "Your heart controls your hands. If you try to figure out how to make the weld more perfect every time, you will find that electric welding is actually very interesting. "

In 2020, the first domestic production of underwater central manifold project with a water depth of more than 1500 meters, the smallest pipe diameter is only as thick as a finger, and the wall thickness is only 2 mm. Every less than 1 meter is densely covered with dozens of welds. . Each weld must not only complete 360-degree welding, but also accept the most stringent inspection standards. In the case of special materials, difficult welding, and high inspection requirements, Song Kai took the initiative to explore and test the practical technology during the day, and consult the relevant theoretical knowledge at night, and finally found out the appropriate welding parameters to increase the qualification rate. To more than 95%.

Over the past 13 years, Song Kai has accumulated a wealth of practical experience. He likes welding, just as simple as children like their beloved toys. Khan Di knows this affection, this state of mind, Welding knows. Editor/He Yuting