- 专利标题: COATING SYSTEM AND METHOD FOR E-COATING AND DEGASIFICATION OF E-COAT FLUID DURING E-COAT
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申请号: US18319130申请日: 2023-05-17
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公开(公告)号: US20230287592A1公开(公告)日: 2023-09-14
- 发明人: Gunjan Agarwal , Sundaresan Avudaiappan , Christopher Lillywhite
- 申请人: Tesla, Inc.
- 申请人地址: US TX Austin
- 专利权人: Tesla, Inc.
- 当前专利权人: Tesla, Inc.
- 当前专利权人地址: US TX Austin
- 分案原申请号: US16769211 2020.06.02
- 主分类号: C25D5/20
- IPC分类号: C25D5/20 ; B05D7/16 ; C25D3/02 ; C25D7/00 ; C25D21/12 ; C25D13/22
摘要:
A coating system includes an electrocoat (e-coat) bath having an e-coat fluid with a first amount of dissolved gases, a plurality of ultrasonic transducers mounted on at least two sides of the e-coat bath, a carrier frame and control circuitry. The control circuitry is configured to control a trajectory of a metal part dipped in the e-coat bath using the carrier frame, control the plurality of ultrasonic transducers to direct a plurality of acoustic waves at a defined ultrasonic operating frequency and at a first intensity to cause a plurality of localized pressure drops in the e-coat fluid, the first amount of dissolved gases is reduced or removed as bubbles from the e-coat fluid of the e-coat bath based on the directed plurality of acoustic waves, and increase the first intensity of the directed plurality of acoustic waves over a defined time period to accelerate dispersion of an e-coat pigment.
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