| 摘要 |
<p>A two-step metallic coating process using a bell-shaped, rotary atomiser, wherein in the first step the peripheral speed of the atomiser is within the range of 39 to 65 m/s (15,000 to 25,000 rpm for a 50mm atomising head), and in the second step the peripheral speed of the atomiser is lower than in the first step and within the range of 21 to 39 m/s (8,000 to 15,000 rpm). The reduction rate of the non-volatile (NV) value is 3 to 6% in the second step. The amount of paint ejected from the atomiser, shaping air pressure, and coating speed are maintained at the same values during both steps.</p> |
