Summary

This document provides safety guidelines for brazing procedures. It covers topics such as wearing appropriate personal protective equipment (PPE), using the correct tools and techniques for igniting and controlling the oxy-acetylene torch, as well as maintaining equipment. It emphasizes the importance of proper joint preparation and cleaning.

Full Transcript

Brazing Safety Tips - Safety Guidelines - Wear appropriate PPE, welding gloves, flame resistant closing, safety glasses or shield. - Ignite the torch with a striker, not an open flame source. - A before O, or up you go. Ignite oxy-acetylene torches with the acetylene gas, once ig...

Brazing Safety Tips - Safety Guidelines - Wear appropriate PPE, welding gloves, flame resistant closing, safety glasses or shield. - Ignite the torch with a striker, not an open flame source. - A before O, or up you go. Ignite oxy-acetylene torches with the acetylene gas, once ignited, introduce oxygen until the flame is as desired. - Keep acetylene and oxygen cylinders in the upright position. Prevent assemblies from falling while being transported in a vehicle. - Keep acetylene and oxygen cylinders secured in storage and in use. - Do not store empty gas cylinders at the work site overnight unless necessary. - Use the proper regulators to control gas pressures. Inspect regulators regularly for damage or wear. - Protect gas hoses and replace worn or damaged hoses. Replace hoses annually. - Protect torch assemblies, replacing them if wear or damage occurs. - Store torch tips where they will not be damaged. Protect the connection end as well as the tip end. - Always use the appropriate size of torch tip for the brazing job. The flame should be blue, not lifting from the tip. The flame should surround the joint being soldered or brazed and not extend beyond the joint. - Thoroughly clean joints and parts to be brazed. Do not touch the area after cleaning. Prevent cleaning materials and dirt from entering tubing, fittings and parts being brazed. - Use the correct brazing rod and temperature for the job. - Minimize the use of brazing rod. Excess brazing material may flow into the tubing and interfere with refrigerant flow. Cut open brazed practice joints to see the degree of brazing material penetration; adjust your techniques accordingly.

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