oxyfuelbrænding

Oxyfuelbrænding, also known as oxy-fuel combustion, is a combustion process that utilizes pure oxygen instead of air as the oxidizer. This substitution significantly alters the combustion characteristics compared to traditional air-fuel burning. When pure oxygen is used, the flame temperature is considerably higher, as the absence of inert gases like nitrogen means less energy is absorbed as heat. This increased temperature leads to a more efficient transfer of heat to the workpiece.

The primary benefits of oxyfuelbrænding include its ability to achieve very high temperatures, leading to faster cutting and welding speeds. It also produces a cleaner flame with fewer emissions, particularly nitrogen oxides (NOx), because there is no nitrogen in the combustion air to react at high temperatures. The concentrated heat and reduced flame volume allow for more precise control in various industrial applications.

Common fuel gases used in oxyfuelbrænding include acetylene, propane, natural gas, and hydrogen, each offering different flame characteristics and temperature capabilities. Acetylene, for example, produces one of the hottest flames achievable with oxyfuel processes, making it ideal for cutting and welding steel. The process is widely employed in metal fabrication, welding, cutting, brazing, and other thermal processes across industries such as manufacturing, construction, and repair. The equipment typically involves oxygen and fuel gas cylinders, regulators, hoses, and a torch or burner designed to mix the gases and produce the flame.