Surface treatment method, stainless steel component, x-ray tube, x-ray tube device, manufacturing method of stainless steel component, and manufacturing method of x-ray tube

Abstract

This disclosure describes a surface treatment method for producing a film with a high radiation rate that can be used in a vacuum, offering low cost and minimal environmental burden. A surface treatment method according to the present disclosure includes a sandblasting treatment step of performing a sandblasting treatment on a surface of stainless steel, and a greening treatment step of performing a greening treatment on the surface after the sandblasting treatment step, in which a surface roughness Ra of the surface after the greening treatment step is 0.70 μm or more and 1.00 μm or less. A stainless steel component according to the present disclosure is a stainless steel component in which a greening treatment is performed on a surface after a sandblasting treatment step, in which a surface roughness Ra of the surface after the greening treatment step is 0.70 μm or more and 1.00 μm or less.

Dependencies are inferred from the claim text.