公开(公告)号：US11692278B2

公开(公告)日：2023-07-04

申请号：US16769211

申请日：2018-12-07

申请人： Tesla, Inc.

发明人： Gunjan Agarwal ,  Sundaresan Avudaiappan ,  Christopher Lillywhite

IPC分类号： C25D13/22 ,  C25D5/20 ,  B05D7/16 ,  C25D3/02 ,  C25D7/00 ,  C25D21/12

CPC分类号： C25D5/20 ,  B05D7/16 ,  C25D3/02 ,  C25D7/00 ,  C25D13/22 ,  C25D21/12

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.

公开(公告)号：US20230287592A1

公开(公告)日：2023-09-14

申请号：US18319130

申请日：2023-05-17

申请人： Tesla, Inc.

发明人： Gunjan Agarwal ,  Sundaresan Avudaiappan ,  Christopher Lillywhite

IPC分类号： C25D5/20 ,  B05D7/16 ,  C25D3/02 ,  C25D7/00 ,  C25D21/12 ,  C25D13/22

CPC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.

公开(公告)号：US20210172083A1

公开(公告)日：2021-06-10

申请号：US16769211

申请日：2018-12-07

申请人： Tesla, Inc.

发明人： Gunjan Agarwal ,  Sundaresan Avudaiappan ,  Christopher Lillywhite

IPC分类号： C25D5/20 ,  B05D7/16 ,  C25D21/12 ,  C25D3/02 ,  C25D7/00

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.