Rotary atomizer for particulate paints

  • US 8,141,797 B2
  • Filed: 02/22/2006
  • Issued: 03/27/2012
  • Est. Priority Date: 01/25/2001
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of atomizing a metallic based particulate paint using a bell cup, wherein the bell cup includes a central flat portion leading to an overflow surface providing substantially laminar flow at a spray edge, and a deflector having a rear surface substantially parallel to the central flat portion and a generally conical surface substantially parallel to the generally conical surface of the bell cup, the method comprising:

  • atomizing the metallic based particulate paint by rotating the bell cup at approximately 60,000 to 80,000 rpm with a paint flow not exceeding 250 ml/min and a shaping air flow not exceeding 200 L/min, such that 80% of the droplets are within a 8-50 micron size deviation;

    wherein a diameter of the spray edge is between approximately 63 millimeters and approximately 75 millimeters.

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