| 摘要 |
PURPOSE: To simply estimate the temp. distribution of the thermal spraying face at a low cost and to optimize the thermal spraying conditions by thermal- spraying the surface of a thermosetting or thermosoftening plated film provided on the surface of parts and thereafter measuring the hardness of the plated film. CONSTITUTION: On the surface 2a of a base material 2 to be thermal-sprayed in parts 1, a plated film 3 constituted by a thermosetting or thermosoftening material is formed. Next, the surface 3a of the same plated film 3 is thermal- sprayed to form a sprayed coating 4. After that, the hardness of the same plated film 3 is measured. Based on the same hardness measured value, from the correlation between the heat treating temp. and hardness, the temp. distribution in the thermal spraying face is estimated. In accordance with the same temp. distribution, thermal spraying conditions such as thermal spraying distance or the like are optimally decided so as to prevent deterioration in the tight adhesion, excessive oxidation or the like in the sprayed coating.
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