Study on technology and performance of submerged arcwelding for ultra-fast cooled X80 steel
To carry out submerged arc welding test of pipeline steel efficiently, the relationship between weld area, groove size and welding seam size was established, so that the heat input for once shaping of submerged arc welding could be predicted.The double-wire submerged arc welding was performed with JH-WGX2 wire and CHF101 flux, and the heat inputs of two welded sides were 25 kJ/cm and 30 kJ/cm respectively.The strength, toughness, bending property and hardness of the welded joint could meet the technical requirements.Especially, the toughness of various locations in heat affected zone was high, and KV2 at-20 ℃ was over 177 J.
once shapingultra-fast coolingX80 steelproperty of welded joint
NETL
NSTL
万方数据
维普
