Gases used in welding and cutting processes include: shielding gases such as carbon dioxide, argon, helium, etc. fuel gases such as acetylene, propane, butane, etc. oxygen, used with fuel gases and also in small amounts in some shielding gas mixtures. Gases produced from welding and cutting processes include: Figure 4 Two-piece tips are used for alternative fuel gases such as natural gas, methane, propylene, MAPP, and propane. This figure shows a cutting torch starting a cut and in action. This standard calls for tips to be stamped with the name of the manufacturer, a symbol to identify the fuel gas, the maximum material thickness, and a code or BS499: Part 1 1991 Glossary for welding, brazing, and thermal cutting. Fusion welding, with or without filler metal, in which the heat for welding is produced by the combustion of a fuel gas or gasses with an admixture of oxygen. Gas welding in which the fuel gas is acetylene. Gas is a state of matter that has no fixed shape and no fixed volume. Gases have a lower density than other states of matter, such as solids and liquids. There is a great deal of empty space Greenhouse Effect 101. By increasing the concentration of greenhouse gases in the atmosphere, we're amplifying the planet's natural greenhouse effect and turning up the dial on global warming Just like oil and coal, natural gas is a finite source that has to be conserved to be a viable power source. In the coming years, many sites are waiting to be discovered. 3. Safer and Easier to Store. Natural gas is a lot safer and easier to store compared to other fossil fuels. uhPZSMd.

name two fuel gases