Final answer:
To remove welding flux from a piece of aluminum that has been gas welded, use a stiff brush or scraper to remove loose flux, clean with a solvent, and rinse with water.
Step-by-step explanation:
To remove welding flux from a piece of aluminum that has been gas welded, follow these steps:
- Use a stiff brush or scraper to remove any loose and excess flux from the surface of the aluminum.
- Clean the aluminum with a solvent such as acetone or isopropyl alcohol to remove any remaining flux residue. This can be done using a cloth or brush soaked in the solvent.
- Rinse the aluminum with clean water to remove any solvent residue.
By following these steps, the welding flux can be effectively removed from the gas welded aluminum.