US Patent Issued to Tianjin University on Oct. 14 for "High-heat-input combined welding method for thick-walled high-strength steel" (Chinese Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,440,927, issued on Oct. 14, was assigned to Tianjin University (Tianjin, China).

"High-heat-input combined welding method for thick-walled high-strength steel" was invented by Lianyong Xu (Tianjin, China), Yongdian Han (Tianjin, China), Zhaowei Xue (Tianjin, China), Lei Zhao (Tianjin, China) and Kangda Hao (Tianjin, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A high-heat-input combined welding method for thick-walled high-strength steel includes following steps. First, a steel plate to be welded is machined into an asymmetric double-sided V-groove, with a depth of a front groove ranging from 30 mm to 40 mm. Then, electrogas welding is used to f...