NEWS

Contatto

Il grado di contaminazione superficiale

Il grado di contaminazione superficiale è definito in ISO 8501-1.Sa 2,5 è necessario per la maggior parte dei processi di rivestimento che è possibile con la gamma QGB di sistemi di sabbiatura.

gradi di rust                                   qualità di preparazione

STANDARDMETHODDESCRIPTION OF FINISH
Sa 1Light blast cleaningWhen viewed without magnification, the surface shall be free from visible oil, grease and dirt, and from poorly adhering mill scale, rust, paint coatings and foreign matter.
Sa 2Thorough blast cleaningWhen viewed without magnification, the surface shall be free from visible oil, grease and dirt and from most of the mill scale, rust, paint coatings and foreign matter. Any residual contamination shall be firmly adhering.
Sa 2,5Very thorough blast cleaningWhen viewed without magnification, the surface shall be free from visible oil, grease and dirt and from mill scale, rust, paint coatings and foreign matter. Any remaining traces of contamination shall show only as slight stains in the form of spots or stripes.
3Blast cleaning to visually clean steelWhen viewed without magnification, the surface shall be free from visible oil, grease and dirt and shall be free from mill scale, rust, paint coatings and foreign matter. It shall have a uniform metallic color.


NEWS

Contatto