Brazing welding involves joining materials using a filler metal that melts at a temperature below the melting point of the base metals. The choice of gas used in this process can significantly impact the quality and efficiency of the brazing.
5 Common Options Explained
1. Acetylene
Acetylene is a commonly used fuel gas in brazing welding. It provides a high flame temperature, making it ideal for various applications.
2. Propane, Natural Gas, and Propylene
These gases are also used as fuel in brazing welding. They are often chosen for their availability and cost-effectiveness.
3. Exothermic Hydrogen Atmosphere
In controlled atmosphere brazing, an exothermic hydrogen atmosphere is commonly used. This mixture of hydrogen (H2) and carbon monoxide (CO) helps reduce surface oxides on soft or low carbon steels.
4. Dissociated Ammonia
Dissociated ammonia, a mixture of hydrogen and nitrogen, is particularly useful for brazing stainless steel or other nickel alloys. It enhances the wetting properties of the base material.
5. Vacuum Brazing
In vacuum brazing, the process is performed at high temperatures and in a vacuum environment. This method is effective for removing hydrogen gas from materials like stainless steel and ensures a clean brazing process.
Continue Exploring, Consult Our Experts
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