FIELD: protection of surface of ingots from gas saturation. SUBSTANCE: method comprises operations of preparation of ingot surface and application of metallic coating onto said surface by electric are spraying of aluminium wire. In this case, coating with thickness of 0.1-0.3 mm is formed for one pass of metal spray gun at through porosity of not greater than 6-8%. Aluminium content in coating material is at least 90-93%, and strength of adhesion with ingot surface is at least 30-50 MPa. Method makes if possible to obtain reliable protection of ingots from gas saturation due to decreased through porosity of coating. EFFECT: more efficient protection method. 2 cl, 4 dwg, 2 ex, 2 tbl
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