| 摘要 |
<p>The present invention makes it possible to prevent ignition due to friction between a feedstock powder and a delivery tube. This thermal-spraying device is provided with the following: a storing means (20) that stores the feedstock powder (10) and has a payout port (21) that pays out said feedstock powder; an ejector (30) that suctions the feedstock powder (10) from the payout port (21) via the flow of a pressurized carrier gas and mixes said carrier gas with the feedstock powder to produce a mixture; and a spraying means (40) that sprays the mixture produced by the ejector (30). This thermal-spraying device sprays and combusts said mixture to form a fire-resistant composition. At least part of the inner channel surface of a delivery tube (33) in the ejector (30) comprises a resin or rubber.</p> |
