MANUFACTURING LARGE-SIZED BEDS BY CONSUMABLE-NOZZLE ELECTROSLAG WELDING

摘要

PWI in collaboration with Novo-Kramatorsk Machine-Building Works (NKMZ company) continues improving electroslag welding technology. This work provides a description of the technology of consumable-nozzle electroslag welding in manufacture of large-sized beds with butts of 420-460 × 2200-2380 and 940-1120 × 1040-1250 mm cross-section. Machine time shortening almost 2 times was achieved. Welded joints of large-sized cast-welded billets of beds for high-capacity mills are characterized by high quality.