Paint Your Wagon. Phil Merrifield European Product Manager Atomisation Steve Mannouch Application Specialist R&D Engineering

Transcription

1 Paint Your Wagon Phil Merrifield European Product Manager Atomisation Steve Mannouch Application Specialist R&D Engineering

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4 What We Do Develop, manufacture and market, premium level systems and equipment which coat or improve surfaces.

5 The History of For over 120 years the DeVilbiss philosophy has been finding innovative solutions to spray finishing problems. Founded in 1888 when Toledo, Ohio physician Dr. Allen DeVilbiss combined a bulb, some tubing and the base of an oil can to create the first atomizer for health care. DeVilbiss is now the leading supplier of spray finishing equipment to the industrial and automotive refinish markets. DeVilbiss has maintained its commitment to innovative technology by establishing itself as a team of experts who thoroughly understand the intricacies of the finishing process, the equipment design needed for achieving the highest quality finish. DeVilbiss is widely recognized for the development and introduction of the first Compliant spray guns, which greatly reduce overspray and VOC s into the environment

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7 The History of Specialized in high quality, innovative products for paint, mastic and adhesive handling applications. Our expertise and knowledge comes from a long history in the field of paint circuit equipment. Dating back to 1890 when Joseph Binks introduced the first cold-water paint spraying machine. Our BINKS PCE products are utilized predominantly in the automotive OEM and Tier 1 supplier market. Today, you can find Binks equipment in every industry around the world.

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9 The History of Ransburg, the acknowledged leader in electrostatic painting processes. Harold Ransburg developed the first electrostatic application system in 1940 with the introduction of Ransburg No1. Further developments through the 50s and 60s lead to Ransburg achieving material transfer efficiency levels of up to 98%. Significant reductions in overspray, resulting in dramatic cost savings and reduced VOC emissions in a wide range of applications, in many different industries. Today Ransburg is a global brand which plays a vital role in the Finishing Brands. Ransburg is acknowledged as the market leader in the design and manufacture of electrostatic equipment. Its cutting edge technology has lead to the development of rotary atomizers like bells and discs.

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11 Atomisation Design Ingredients Volume Velocity

12 Air Atomisation Air Atomisation Equipment Conventional High Volume Low Pressure Compliant High Efficiency Velocity Velocity Velocity

13 Air Atomisation Basics Face Holes = Stabilisation, Cleaning & a little Secondary atomisation To get the brush spray pattern shape normally wanted we need to compress the cone Speed Difference and Turbulance between Air and Fluid Jets creates Atomisation Natural Divergence of the Air Stream creates a conical round spray pattern shape Fluid Tip Centre Hole = Fluid Stream Horn Air Jets = Compression & Shaping Annular Orifice = Atomising Air

14 Computational Fluid Dynamics CFD

15 Air Atomisation (Advanced)

16 Droplet size & Distribution Quantity Size

17 Airless (Hydraulic) Atomisation Outer Housing Velocity Tungsten Carbide Fluid Tip Typical fluid orifice size to Typical fluid pressure 1000 to 6000 psi FLOW RATE

18 Airless (Hydraulic) Atomisation Sheet Ligaments Droplets

19 Add a little Air % reduction in Fan Length will depend upon: Viscosity, Nozzle size Pattern length, Fluid Pressure, Solids Content, Air Pressure and more Typical fluid orifice size = to Typical Fluid Pressure = 500 to 4000 psi

20 What about Electrostatic? Ransburg Ransflex Series LP Turbine Electrostatic hand Gun Systems Ransburg Vector Series LP & HP Classic Electrostatic hand Gun Systems Ransburg Vector Series LP & HP Cascade Electrostatic hand Gun Systems

21 Electrostatics in Action

22 Centrifugal Atomisation Velocity

23 Electrostatic Atomisation - - Velocity

24 Paint Your Wagon Phil Merrifield European Product Manager Atomisation Steve Mannouch Application Specialist R&D Engineering