1.The oil soil,moisture,Iron rust and other foreign substances must be removed from the welding joint.
2.It is better to use direct current.
3.The weldng flux must be baked under 300-350℃ for 2 hours.
Chemical Coposition of HJ431(%)
Mechanical Properties of the Deposited Metal With Wire EM12
Impact absorption rate Akv
SJ101 is a kind of fluoride-alkaline-type slag-serial sintered flux,mesh 10-60. it has great capacity of sulphur removal,phosphor removal and anti-rust.The technology has good performance,easy to deslag and with fine appearance of weld,even in the narrow gap of deep slope entrance. The metal welding seam has good plasto-toughness,with low diffusion of hydrogen and fine cold and heat crack resistance.