bottom pouring

metallurgy

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June 17, 2026

Quick Summary

Bottom pouring is a method used in metallurgy to solidify liquid steel by pouring it into molds. In this process, multiple ingot molds are arranged on a large bottom plate. These molds are connected to a feeder tube via pipelike runners. The feeder tube receives molten steel from a ladle and directs it to fill all the molds simultaneously from the bottom up. This technique is advantageous as it prevents the splashing that can occur with top pouring. The system is often automated, with the bottom plates being movable for efficient workflow. Porosity, a common issue in castings, can be caused by incomplete feeding during solidification or by gas-forming impurities in the molten metal.12

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Pouring procedures
In a different procedure, called bottom pouring, as many as six ingot molds stand on a single large and thick bottom plate with several pipelike refractory runners installed on its top surface. These runners connect the molds to a refractory-lined, funnel-shaped feeder tube, which receives liquid steel from the ladle…
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In a different procedure, called bottom pouring, as many as six ingot molds stand on a single large and thick bottom plate with several pipelike refractory runners installed on its top surface. These runners connect the molds to a refractory-lined, funnel-shaped feeder tube, which receives liquid steel from the ladle…
Read More