Effect of Process Parameters on Corrosion Resistance of Steel Structure Coating
The explosion spraying tests of Q345 steel using different spraying distances and the ratio of O2 and C2 H2 were carried out, and electrochemical corrosion tests and 240 h neutral salt spraying corrosion tests were carried out, too. The experimental results show that when the spray distance is in the range of 120 mm to 210 mm and the ratio of O2 /C2 H2 Q345B is in the range of 0.8 to 1.2, the mass loss of Q345B steel structure explosion spray coating first decreases and then increases; the corrosion potential first decreases and then increases; the corrosion resistance of Q345B steel structure sprayed layer first increases and then decreases.