In Orgo-thermite welding, what is packed to ensure proper alignment?

In Orgo-thermite welding, proper alignment is critical to the success of the weld. The bottom of the base is packed to ensure that the alignment of the components being welded is maintained throughout the process. Packing the bottom helps secure the workpieces in place, preventing any movement that could affect the quality of the weld or lead to misalignment while the thermite reaction occurs.

This meticulous packing ensures that the molten metal produced from the thermite reaction flows correctly into the joint area, creating a strong and reliable weld. It also helps to withstand the intense heat generated during the reaction, ensuring that everything remains stable during the welding process.

In contrast, while the tip of the mold, the head riser, and the crucible play roles in the overall thermite welding setup, they do not primarily serve the purpose of ensuring alignment. Each part has its function, but focusing on the bottom of the base is essential for achieving effective weld alignment.