Ship Welder Feng Wenhu: Every Weld is the Guarantee of the Highest Quality
- With his excellent welding technology, Feng Wenhu often evaluates various processes together with the construction law department
Feng Wenhu, winner of the National May 1st Labor Medal, senior technician of Guangzhou Shipyard International Electric Welder.
Feng Wenhu, winner of the National May 1st Labor Medal and a senior technician for ship electric welders of China Shipbuilding Corporation Guangzhou Shipyard International, said: "Most of the welded steel structures that are usually seen by electric welders are stationary, and ships will continue to move at sea. It is bumpy, and at the same time, it has to load tens of thousands of tons and hundreds of thousands of tons of goods to ride the wind and waves at sea. Therefore, the requirements for the quality of the welds are higher, and no defects are allowed.”
Feng Wenhu recalled his experience in practicing welding skills. "Every day after get off work, I would pick up some leftovers to practice welding techniques. When I first started practicing, I was not very good at avoiding the arc of electric welding, and I was often shot in the eyes. At night, my eyes would feel as uncomfortable as needles and hurt. I couldn’t sleep all night.” He bought a lot of related books and began to teach himself theoretical knowledge, and successively obtained several certificates at home and abroad.
In the more than ten years of his career, the deck welding of Xinguanghua, the largest semi-submersible vessel in China, is the most difficult project Feng Wenhu has encountered.
"The thickness of the deck reaches 60 mm, and its weld seam is as thick as an adult's wrist, which is particularly prone to welding defects, which puts forward more stringent requirements for the welder's skills." After repeated research, Feng Wenhu and the team The members creatively proposed to use the cold welding method for welding, that is, stop immediately after welding a small section of the weld, and then hit the workpiece with a hammer to release the application. After the weld is completely cooled, the welding is performed. This method is equivalent to a minimally invasive technique in surgical operations, which can minimize the heated area at the weld and complete the emergency repair.Editor/Ma Xue