| 摘要 |
<p>Even when the flow of a dopant, a dopant oxide, an amorphous material in a furnace into an exhaust pipe is continued for a long period of time, the suppression of unfavorable phenomena of the fixation of them onto the internal surface of an exhaust member and the formation of an amorphous layer can avoid cleaning work, which requires a large man-hour, and can finish the cleaning work simply in a short time. When the surface, to be treated, of an exhaust member such as an exhaust pipe is formed of an iron and steel material, the surface to be treated is plated with chromium having a higher chemical activity than iron. Alternatively, when the surface to be treated in an exhaust member such as an exhaust pipe is formed of an iron and steel material, the surface to be treated is plated with fluororesin-added electroless nickel.</p> |
