PLASMA SPRAYING METHOD FOR TITANIUM OXIDE POWDER ONTO SUBSTRATE, PLASMA SPRAYING DEVICE FOR TITANIUM OXIDE POWDER ONTO SUBSTRATE AND PRODUCT HAVING PLASMA SPRAYED COATING

摘要

PROBLEM TO BE SOLVED: To provide a plasma spraying method for titanium oxide powder onto a substrate in which titanium oxide sprayed coating is directly plasma- sprayed onto a high temp. weak substrate such as metallic foil and a plastic film without interposing a binder and titanium oxide sprayed coating the bactericidal performance of active oxygen is formed on the substrate, to provide a plasma spraying device for titanium oxide powder onto a substrate and to provide a product having plasma sprayed coating. ;SOLUTION: The plasma flame 14 of a gaseous mixture G at least composed of gaseous argon and gaseous nitrogen is jetted at a high speed from the plasma flame jetting hole 5 of the main body 1 of a plasma nozzle, anatase type titanium oxide powder is jetted from a spot hole 7 for anatase type titanium oxide powder provided proximately to the outlet of the plasma flame jetting hole 5, and the coating 9 of anatase type titanium oxide having photocatalytic function is spray-formed on the surface of a substrate 8.;COPYRIGHT: (C)1999,JPO