Welding Iron Fix. Stick welding is a complex welding method. To weld cast iron stick welding is the preferred method and you dont need any Oxy acetylene torch for it.
Now use a grinder to ground the crack in the cast iron so that a cross-section is formed in a U-shape. This will add an extra layer of plastic between the main cracks and will result in a stronger joint. To weld cast iron stick welding is the preferred method and you dont need any Oxy acetylene torch for it.
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Raise the temperature of the broken part of cast iron. Cast iron is difficult but not impossible to weld. So before using heat torch put the broken piece into the oven as it helps to increase the temperature gradually. Such techniques include brazing the use of epoxy putty and the use of cold metal stitching.