Carbon dioxide

From GAWDAwiki

Carbon dioxide (CO₂) is created when two oxygen molecules form covalent bonds with a carbon molecule. It may be produced through combustion, respiration or decomposition of organic materials.^[1]

Scottish chemist and physician Joseph Black first identified carbon dioxide in the 1750s.^[2]

See also: carbon dioxide hose, carbon dioxide tank

Applications

CO₂ is commonly used as a shielding gas in welding operations. This process is known as Metal Active Gas (MAG) welding (as opposed to Metal Inert Gas, or MIG, welding) since CO₂ is an active gas. It is typically used when welding carbon and low-alloy steels ranging from 16 gauge (0.059 inch) to 1/4 inch (6 mm) or heavier. The process results in deeper penetration and slightly more spatter than similar processes using argon or argon mixtures.^[3]

References

1. http://www.wisegeek.com/what-is-carbon-dioxide.htm
2. http://www.welding-technology-machines.info/arc-welding-processes-and-equipments/co2-welding.htm
3. http://www.lenntech.com/carbon-dioxide.htm

Spec Sheets

Click the following links to view spec sheets about carbon dioxide.

• SuperFlash Adjustable Shielding Gas Mixer

White Papers

Click the following links to view white papers about carbon dioxide.

• Air Liquide: Applying Lean to Welding Operations

Brochures

Click the following links to view brochures about carbon dioxide.

• Tristar Welding Supply Company Brochure