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Numerical Investigation of Electrostatic Spray Painting Transfer Processes for Vehicle Coating

Universidade Da Beira Interior-Mohammad Reza Pendar, Jose Pascoa
Published 2019-09-16 by SAE International in United States
In this study we examined numerically the electrostatic spray transfer processes in the rotary bell spray applicator, which is this case implemented in a full 3D representation. Instead of an experimental approach [Stevenin et al., 2015, Fluids Eng., 137 (11)], here an algorithm implemented and developed for this simulation includes airflow, spray dynamics, tracking of paint droplets and an electrostatic modularized solver to present atomization and in-flight spray phenomena for the spray forming procedure. The algorithm is implemented using the OpenFOAM package. The shaping airflow is simulated via an unsteady 3D compressible Navier-Stokes method. Solver for particle trajectory was developed to illustrate the process of spray transport and also the interaction of airflow and particle that is solved by momentum coupling. As the numerical results in this paper indicates dominant operating parameter voltage setting, further the charge to mass ratio and air-paint flow rate deeply effect the spray shape and the transfer efficiency (TE). The spin of the bell forced the paint to fall off from the bell edge into the high-velocity airflow. By increasing…
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Designing Sensors for Hazardous Environments

  • Magazine Article
  • TBMG-35196
Published 2019-09-01 by Tech Briefs Media Group in United States

Some of the most common applications for hazardous duty sensors are in the oil and gas industry. Rotary encoders are frequently used to provide crucial feedback about moving machinery on the rig. Flammable agents are common in applications near the wellbore, so most electrical components on the rig require special hazardous area certification. Hazardous duty sensors are also used in applications such as paint spray booths because of the volatiles coming off the paint; grain silos because the dust environment is very explosive; chemical factories; explosives factories; and believe it or not, for cosmetics because the very fine powders that are used are highly explosive.

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AEROSPACE STANDARD PROTECTIVE COVER, CONNECTOR RECEPTACLE, REVERSE BAYONET COUPLING

AE-8C1 Connectors Committee
  • Aerospace Standard
  • AS95234/11
  • Current
Published 2019-08-27 by SAE International in United States
No Abstract Available.
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CONNECTOR RECEPTACLE, REVERSE BAYONET COUPLING, DUMMY STOWAGE

AE-8C1 Connectors Committee
  • Aerospace Standard
  • AS95234/12
  • Current
Published 2019-08-27 by SAE International in United States
No Abstract Available.
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Chemical Treatment for Aluminum Alloys Low Electrical Resistance Coating

AMS B Finishes Processes and Fluids Committee
  • Aerospace Material Specification
  • AMS2474E
  • Current
Published 2019-06-25 by SAE International in United States
This specification establishes the engineering requirements for producing chemical-film coatings on aluminum and aluminum alloys and the properties of such coatings.
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Heat Resistant Aluminized Paint

AMS G8 Aerospace Organic Coatings Committee
  • Aerospace Material Specification
  • AMS3604A
  • Current
Published 2019-06-11 by SAE International in United States
This specification establishes requirements for a heat resistant aluminized organic coating with sufficient corrosion and erosion resistance for the finished substrate.
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Aircraft Deicing Vehicle - Self-Propelled

G-12E Equipment Committee
  • Aerospace Standard
  • ARP1971D
  • Current
Published 2019-02-13 by SAE International in United States
This SAE Aerospace Recommended Practice (ARP) covers requirements for a self-propelled, boom-type aerial device, equipped with an aircraft deicing/anti-icing fluid spraying system. The unit shall be highly maneuverable for deicing all exterior surfaces of commercial aircraft, of sizes agreed upon between purchaser and manufacturer, in accordance with AS6285. The vehicle shall be suitable for day and night operations.
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Powder, Plasma Spray 50 (88WC - 12Co) + 35 (70Ni - 16.5Cr - 4Fe - 4Si - 3.8B) + 15 (80Ni - 20A1) Three-Component Mixture

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5792B
  • Current
Published 2018-10-10 by SAE International in United States
This specification covers a blend of tungsten carbide-cobalt aggregate, a nickel alloy, and a nickel aluminum aggregate in the form of powder.
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Magnetic Particles, Nonfluorescent, Wet Method, Oil Vehicle, Aerosol Packaged

AMS K Non Destructive Methods and Processes Committee
  • Aerospace Material Specification
  • AMS3043E
  • Current
Published 2018-08-31 by SAE International in United States
This specification covers nonfluorescent magnetic particles in the form of a mixed, ready-to-use suspension in an odorless oil vehicle and packaged in aerosol cans.
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Remover, Epoxy Paint Acid-Type, Thickened

AMS J Aircraft Maintenance Chemicals and Materials Committee
  • Aerospace Material Specification
  • AMS1376B
  • Current
Published 2018-08-23 by SAE International in United States
This specification covers a paint remover in the form of a liquid.
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