Tuesday, January 12, 2010

Stick Weld Cast Iron

Stick Weld Cast Iron


Cast iron is renowned for its strength. Despite this, it occasionally breaks. If you have a leaky cast iron bathtub, or a piece of cast iron cookware with a crack in it, you can repair it using a shielded metal arc welding (SMAW) welder, also known as a stick welder. Does this Spark an idea?


Instructions


1. Make sure that the area on the object where you are welding is clean. Use a wire brush to clean off any dirt or oil.


2. Use the welder to slowly preheat the area you want to weld. Hold the welder approximately half an inch away from the surface.


3. Heat the nickel rod with the welder. Hold the tip of the rod over the crack, allowing the nickel to drip into the crack until it forms into a short bead.


4. Once you've laid a bead of nickel, peen it by hitting it with the hammer. Continue peening until it is flat. This evens out the stresses.


5. Repeat steps 3 and 4 until you have filled the crack.


6. Cover the area with a flame retardant blanket so it cools slowly.

Tags: Cast Iron, Stick Weld, Stick Weld Cast, Weld Cast, Weld Cast Iron