Welding�Machine Operator, Thermit

Operates thermit welding machine to join metal components...

Operates thermit welding machine to join metal components, such as crankshafts, ship stern frames, machine parts, and railroad and craneway rails. Aligns and secures parts in holding fixture. Cuts gap in parts parallel to joint, using gas torch. Places wax pattern and mold box around gap. Places gate and riser patterns into specific positions. Pulls plug to automatically pour specified amount of thermit material into mold box. Ignites kerosene preheater to melt wax and dry mold, using gas torch. Places powder on thermit material and ignites compound, using gas torch, to start thermit welding reaction. Breaks mold, using handtools. Cuts off gates and risers, using gas torch.