Magnesia, chrome-corundum castables and ramming mixes for copper, aluminum, zinc and lead smelting furnaces.
Non-ferrous smelting furnaces endure severe slag and melt attack, mostly in alkaline conditions. The company supplies magnesia ramming mixes, chrome-corundum castables and SiC wear linings for copper reverberatory, aluminum melting and zinc-lead furnaces, resisting alkaline slag and washing for lining and repair work.
Typical kilns in this industry — click each to see its specific problems and solutions
The copper bath zone suffers matte penetration and slag attack; magnesia-chrome bricks with copper staves are the mainstream solution.
View Problems & Solutions →Cell sidewall SiC bricks face electrolyte attack and sodium penetration, tied to cell life and energy efficiency.
View Problems & Solutions →Zinc kiln linings suffer zinc vapor penetration and ring formation; phosphate bricks and chrome-corundum bricks are common.
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Magnesia-alumina spinel castable is an alkaline monolithic refractory made of fused magnesia and alumina-magnesia spinel, offering excellent slag resistance and thermal shock resistance for steel ladle and hot metal ladle working linings.
Chemical composition MgO≥55%
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Magnesia castable is made from sintered magnesia as aggregate and fines, offering high MgO content, strong resistance to basic slag and high refractoriness. It is ideal for steel ladle slag lines, LF refining furnaces and tundishes.
MgO content≥ 85%
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Chrome-corundum castable incorporates Cr₂O₃ (3-8%) to form viscous slag films at high temperature that block penetration. 1750℃ max service, outstanding resistance to non-ferrous slags.
Max. Service Temp.1750℃
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SiC wear-resistant castable with SiC≥50% aggregate offers extreme hardness and erosion resistance to 1600℃. High thermal conductivity promotes slag-coating self-protection. For CFB boiler cyclone barrels and cones, loop seals, copper flash furnace cones, launders and elbows under heavy wear.
Max. Service Temp.1600℃
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Dry vibratable mix is placed by vibration without water or baking. MgO≥90%, 1750℃ max service; it self-sinters on first heat into a dense working lining.
Max. Service Temp.1750℃
Learn More →Rotary activation furnaces, Shaft (Slep) furnaces and carbonization furnaces — with the refractory lining supplied and installed by the same team.
See activation furnaces →Application cases & castable solution practice
Local roof burn-through and cracking was repaired by hot-repair ramming plus gunning seal, cutting repair cost by about 60% and extending roof life for one more campaign.
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