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CO2 Mechanics Blog

Practical knowledge, tools, tips and techniques for developing and implementing innovative CO2-enabled clean manufacturing processes, products, and production lines.

    • SUBJECTS

      • Forward

      • Scope And Objectives

      • The Co2 Backstory

      • Co2 Processing Technology

      • Co2 Processing Units

      • Contamination Control

      • Manufacturing Waste Minimization

      • Environmental Health Worker Safety

      • Co2 Application Profiles

      • Clean Solution Innovation Process

    • CO2 DATA

      • Co2 Properties

      • Co2 Diagrams

      • Co2 Safety And Health Data

      • Co2 In The News

    • GLOSSARY

      • Technical Terms

      • Blog Icons

      • How To Use This Blog

      • Copyright Notice

    • VIDEOS

      • Corporate Videos

      • Process Videos

      • Product Videos

    • AUTHOR

      • Author Bio

      • Dedications

    David Jackson

    David Jackson
    David Jackson, aka The CO2 Guy, is Founder and President of CleanLogix LLC and Clean Imagineering LLC, based in Santa Clarita, California. David’s companies work in partnership to manufacture and distribute synergistic clean manufacturing products and services for precision cleaning, hard machining, thermal control, value extraction, precision drying, sample testing, process fluids supply and management, and smart manufacturing. David also serves as Clean Manufacturing Consultant to Hitachi High-Tech, Japan, to develop and deploy Hitachi-brand CO2 enabled precision cleaning and metalworking fluid products (clean solutions) for high-volume and high-reliability product manufacturing. David began his career as group head of precision cleaning and contamination control at Hughes Aircraft Company in the 1980’s. There he developed the first CO2-based precision cleaning techniques as chlorofluorocarbon (CFC) solvent replacement processes for use in the production of advanced aerospace communications and warfare devices. David holds a Bachelor’s Degree in Chemistry, has authored or co-authored numerous technical articles and presentations, and has been issued more than 40 patents worldwide. David has developed and commercialized more than twenty clean manufacturing products utilizing environmentally-safe and renewable chemistries including CO2, hydrogen peroxide, ozone, bio-based hydrocarbons, and atmospheric plasma. Over the past 35 years, David’s unique expertise and innovations have provided numerous Fortune 100 and 500 manufacturing companies worldwide with cost- and performance-effective tools to improve product quality, increase productivity, reduce manufacturing waste, lower cost of production, and improve the environmental quality in their factories. • Renewable Chemistries for Precision Cleaning, Machining Processes, and Value Extractions • Centrifugal, Microwave, and Ultrasonic-Assisted Cleaning and Extraction Processes • Cleaning, Cooling, and Lubrication Processes using Solid, Liquid, Plasma, and Supercritical CO2 • Non-contact Surface Analysis Methods • Atmospheric Plasma Surface Treatment Methods • Manufacturing Waste Minimization Assessments • Cleaning Process Development and Cleanliness Validation • 3D Product Design and Fabrication • PLC/iPC Control Panel and Software Development • Robotic Process Automation • Contract Cleaning Services • Smart Manufacturing Consulting

    Recent Posts

    CO2 Processing Technology 2.2.3.2.3

    Bondability

    CO2 Technology Improves Bondability

    A manufactured product may require component surfaces to be joined using methods such as gluing, welding, soldering, and coating. The ability of a surface to be cohesively or adhesively joined or bonded to another surface is termed bondability.

    CO2 in the News 07.27.20

    All About Extracting CBD With CO2 Extraction

    There are several procedures involved in making CBD products

    CO2 in the News 04.23.21

    Perseverance rover converts CO2 into oxygen on Mars for the first time

    MOXIE produced five grams of oxygen, equal to 10 minutes of breathable oxygen for astronaut carrying out normal activity

    CO2 Processing Technology 2.2.3.2.2

    Wettability

    CO2 Improves Surface Wettability

    A manufactured product may require component surfaces to provide fast and uniform spreading and contact of applied (liquids) adhesives, coatings, paints, sealants, underfills, or molten metals. The ability of surface to be wetted by another substance is termed wettability.

    CO2 Application Profile

    CO2 MQCL for Titanium Machining

    Atmosphere. Optimized.

    Introduction

    The past century has witnessed significant advancements in cutting machines, cutting tools, machine controls, processing materials, and cooling-lubrication chemistries. However, surprisingly very little has changed with regards to the application of coolants and lubricants during machining – the machining atmosphere.

    CO2 Processing Technology 2.2.3.2.1

    Cleanability

    CO2 Improves Surface Cleanliness in Different Ways

    A manufactured product may require components to have a certain maximum level of surface contaminants such as particles and oils to enable wetting, bonding, or machining operations, or to enable assembly, testing, or functional performance of the product. The ability of surface to be cleaned to a pre-determined and desired cleanliness level, efficiently and without damage to the surface or product, is termed cleanability.

    CO2 Processing Technology 2.2.3.2

    Surface Transformations

    CO2 Changes Surfaces in Different Ways

    The most practical and unique aspect of COprocessing technology is its ability to transform the chemical and physical nature of a manufactured surface, selectively or non-selectively, and in many different ways. Example surface transformations include dirty-to-clean, hot-to-cool, low surface free energy-to-high surface free energy, high outgassing-to-low outgassing, and non-polar-to-polar.

    CO2 Processing Technology 2.2.3.1

    Contaminant-Constrained Manufacturing Systems

    Surface Contamination Constrains Manufacturing

    Manufacturing systems comprise numerous processes and apparatuses needed to fabricate a product. In addition, manufacturing systems require inputs such as space, energy, materials, labor, and time. Processes include wire bonding, hard metal turning, precision assembly, adhesive bonding, welding, and inspection, among many other examples.

    CO2 Processing Technology 2.2.3

    CO2 Processing System

    Problem-Opportunity-Solution

    The CO2 processing system comprises three components, as follows:

      • Problem: a manufacturing system comprising a manufacturing apparatus and process (i.e., machining, bonding, assembly, fastening, testing) and a manufactured product (i.e., hardware, subassembly, workpiece, substrate) which is constrained in one or more ways by one or more contaminants (product or tool) present before, during, or following the manufacturing process.

    CO2 Processing Technology 2.2.2

    CO2 Processing Technology Overview

    CO2 as a Solvent, Coolant, and Lubricant

    It has been known for more than 80 years that CO2 behaves in a manner similar to an organic “solvent” when compressed to liquid-like densities and as an organic “solute” when compressed into and mixed with another organic solid or liquid. Examples include CO2 plasticization of polymers such as low density polyethylene (LDPE) and solid CO2 mixed into and complexed with cold hydrocarbon solvents. CO2 modifies the physical and chemical properties of solids and liquids having similar cohesion energies, for example expanding organic solvents to reduce viscosity and increasing permeability of gases into polymers.

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