How Do You Repair Cast Iron Without Welding?
Cast iron is a strong, durable, and inexpensive material that is frequently used in a variety of home, commercial, and industrial settings. Despite its strength, cast iron is brittle, and can break easily. Cast iron that is dropped or subjected to other sudden forces can crack or break, and large temperature changes can also cause parts to break. Welding, a repair technique often associated with metals, is difficult to perform on cast iron. However, brazing can be used to create strong repairs in broken cast iron parts. Like welding, brazing uses heat to apply a filler material to connect two parts together. However, brazing uses less heat than welding, and the base material is not allowed to melt. The filler material is like a glue that coats the cast iron parts and bonds them together. Step 1 Select a filler rod based on the application. Filler rods for cast iron brazing are generally nickel or brass, and may or may not contain flux. Some fabricators use a separate powder or paste fl