What are the characteristics of steel plate surface pretreatment

Shot blasting derusting:
Shot blasting can not only remove rust and oxide scale quickly and accurately, but also clean the steel plate evenly after shot blasting pretreatment, showing uniform roughness, which can improve the adhesion of coating and prolong the service life of coating.

Improve the fatigue strength and corrosion resistance of the steel plate:
During shot blasting, the steel plate surface is strengthened by weak shot impact, which improves the fatigue strength and anti-corrosion ability of the material, and eliminates the internal stress of the weld; meanwhile, the hull and other parts are subject to strong shot blasting during the overall rust removal of shot blasting, which will expose the hidden cracks on the steel plate or the excessive corrosion of the shell plate, and can play a role in overall inspection of the shell quality.