Invention Grant
US09238863B2 Method for blackening white fluoride spray coating, and fluoride spray coating covered member having a blackened layer on its surface 有权
黑色氟化物喷涂的黑化方法,氟表面涂层覆盖件,表面具有黑色层

Method for blackening white fluoride spray coating, and fluoride spray coating covered member having a blackened layer on its surface
Abstract:
This invention is to provide a fluoride spray coating covered member having excellent resistance to halogen corrosion and resistance to plasma erosion and displaying identification symbols such as letters, numeric characters, graphic, pattern, firm name, serial number and so on. In the invention, one or more implanting gases selected from fluorine-containing gas, oxygen gas and inert gas are ion-implanted onto a white fluoride spray coating formed on a surface of a substrate, whereby at least a part of the surface of the white fluoride spray coating is changed into a black color to form a black ion-implanted layer.
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