Cast Iron Stave Coolers for Blast Furnace
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cast iron stave coolers
A cooling plate for a metallurgical furnace comprises a cast cooling plate body made of a ferrous metal and at least one steel cooling pipe cast in the cooling plate body. A metallic jacket is provided on the outer surface of the steel cooling pipe in the cooling plate body. The metallic jacket has a thickness in the millimeter range and is made from a metal selected from the group consisting of copper, copper alloys, nickel and nickel alloys.
The cooling plate, the steel pipes are protected by a thick metallic jacket, which is believed to act as a physical barrier to carbon diffusion. In other words, the thickness of the metallic jacket is such that it is very improbable that carbon from the liquid ferrous metal, generally cast iron, will reach the steel cooling pipe.