What should the torch height be above the top of the head of the rail for a standard 1" weld for an Orgo system?

In thermite welding, the torch height is crucial for ensuring the proper flow of the molten weld metal and achieving a strong bond. For a standard 1" weld in an Orgo system, the recommended torch height above the top of the rail is specifically set to 1-3/8 inches. This height allows for the optimal adjustment of the flame to maintain a consistent and controlled melting process while ensuring that the heat is evenly distributed across the surfaces being joined.

Setting the torch at this height facilitates the necessary preheating of the steel surfaces before the thermite reaction begins. The slightly elevated position helps in avoiding excessive heat loss to the surrounding environment and helps manage the overall temperature more effectively. If the torch is positioned too high or too low, it can lead to inadequate heating or inefficient melting, potentially compromising the structural integrity of the weld.

Understanding this specific height for the torch is critical for achieving the desired quality and performance characteristics in thermite welds, making it an essential aspect of the welding procedure.