Clean Manufacturing Technology: CO2-Powered Production

Presenter: Irvin Loza (Hitachi High Tech), David Jackson (CleanLogix, LLC) | Date: 04/04/2019

CO₂ Processing is Sustainable ManufacturingCPU® - CO2 Processing Units

Sustainable Manufacturing

Lean and green CPU® Powered manufacturing processes minimize negative environmental impacts, conserve energy and natural resources, are safer for employees, communities and consumers, and are economically sound.

CO₂ Technology Transforms ManufacturingCO2 technology incorporates dry cleaning, cooling and/or lubricating capability into virtually any manufacturing process, which has a profound and positive impact on the production processes and lines

CO2 technology changes six different aspects of a manufacturing operation:

• Transforms virtually any manufacturing process

• Reduces the generation of many forms of manufacturing wastes

• Addresses many different types of surface contamination in the form of physical matter, chemical, and thermal energy

• Performs many different types of process functions

• Adapts to production tools and lines in many different and unique ways

• Achieves different measures and levels of quality

Let’s count the many ways

What is CO₂?Many different manufacturing agents (and capabilities) in one chemistry

• Carbon dioxide (CO2) is a simple linear molecule comprising one carbon atom bounded by two oxygen atoms.

• CO2 is commercially obtained as a gaseous by-product from manmade and natural production processes.

• CO2 is non-toxic, non-corrosive, non-flammable and is an integral part of the basic carbon cycle in nature.

• CO2 can exist as a gas, solid, liquid, supercritical fluid, or plasma, depending upon the pressure, temperature and energy applied.

• CO2 is a versatile and multi-faceted manufacturing agent; performing as a precision spray or immersion cleaning solvent, a surface modification agent, and a cooling-lubricating machining fluid.

Solid

Liquid

SupercriticalFluid

Particle-PlasmaAblation

CO₂ CleaningAdaptability to Process – Lower Waste – Better Quality, Faster

• Improved productivity for:• Complex hardware• Higher performance standards• Difficult-to-remove contaminants

• More adaptive to production lines, tools, and robots.

• Increased selectivity

• Increased material compatibility

• Dry processing

CO₂ MachiningFaster Machining – Longer Tool Life

• Higher productivity for:• Harder materials• Composite materials• Abrasive materials• Low TC materials

• More adaptive to production lines, tools, and robots

• More dry/near-dry cooling-lubricant options• Smoother surfaces• More tool options and longer tool life• Dry processing

Manufacturing ValueYield – Productivity – Less Waste – Environmental Quality

Increased Yield Reduces part rejects, improves cleanliness, lowers process variability, improves surface finishes, or improves end-product performance…

Increased Manufacturing Productivity Reduces manpower, provides faster cutting, reduces cleaning process steps, provides longer tool life, and adapts easily to conventional assembly tools and automation processes…

Lower Manufacturing WasteReduces energy, water, space, and labor inputs…

Increased Environmental QualityEliminates solvents and waste cleaning by-products, air pollution, and permitting tasks and pollution abatement facilities…

WETPROCESSING

(PCD machining WC-Co)

Video

Example Factory Utilization SchemesCapital Intensive, complex, space

consuming

Example Factory Utilization SchemesCPU-powered process – Lean, Cost & Environmentally Sustainable

Spray Generators

CO2 Purification & Booster

CO₂ Leverages Waste, which is CashCO2 Technology Recovers Lost Cash Flow

Actual Customer Example

CO₂ Processing Units (Spray)CPU® CO2 Composite Spray Systems

• Over 20 years of commercial product-applications development

• Unique dry CO2-based processing technology in a compact module

• Integrate into virtually any standard or custom production tool or line

• Provide in-situ dry cleaning, surface treatment, process temperature control and cooling-lubrication

• Customizable, re-configurable and modular design

CPU® – CO2 Processing Unit

CPU® Powered SystemCPU® Spray System Scheme

CPU® Powered SystemCPU® Spray System Scheme

The Remarkable CO2 ParticleCleans – Cools - Lubricates

• Behaves like a hydrocarbon solvent: δT = 18 MPa1/2

• Impact phenomenon: ablation and phase change:(solid->gas, solid->liquid->gas)

• Can be modified with plasmas, liquids, solids, vapor-phase additives

• Very soft material: Hardness = 0.3 Hm (8 Hv)

• Particle size: ranges between 0.5 to 500 microns (adjustable between fine-to-coarse)

• Surface impact: particle shear stresses to 60 MPa or greater Octahedron

CO2 Composite Spray™Multi-Phase CO2 Particle-Air-Additive Spray System

CO2 Composite Spray™ Technology20+ years in development

1995 2000 2015

StabilityEconomy

PowerAdaptability

U.S. Patent 5,725,154• Pulsed CO2 particle

production using a capillary condenser

• CO2 particle acceleration using heated compressed air

U.S. Patent 7,451,941• Continuous CO2

particle injection

• CO2 particle size control

U.S. Patent 9,221,067• Micronized CO2

particle production

• LightSPEC™ spray quality monitoring technology

Thank You!

Hitachi High Technologies America, Inc.Global CO2 Solutions Provider

Irvin Loza, Sales Account ManagerIndustrial Solutions DivisionEmail: co2@hitachi-hta.comOffice: (847) 273-4359Cell: (847) 217-1749

For more information, please visit http://www.cleanlogix.com

CleanLogix LLCCorporate Office

David Jackson, Presidentdavid.jackson@cleanlogix.comOffice: (661) 430 6768Cell: (661) 803 0546

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