| 摘要 |
<p>Provided is a powder coating method such that it is possible to form, by means of a thermosetting powder coating material, a coating film exhibiting excellent adhesion and surface properties. Specifically disclosed is a powder coating method which involves: a heating step for heating a spring member (21); a coating step for attaching a thermosetting powder coating material (20a) on the surface of the spring member (21) once the surface temperature (T) (°C) of the spring member (21) reaches Tf-20=Tf+20 (wherein Tf represents the temperature (°C) at the thermosetting powder coating material (20a) has finished setting); and a setting step for setting the attached thermosetting powder coating material (20a). During the setting step, the surface temperature (T) (°C) of the spring member (21) when setting is completed is preferably Ts+30=T (wherein Ts represents the temperature (°C) when the thermosetting powder coating material (20a) begins to set).</p> |
