The ceramic tunnel  furnace, operational for over six months, has been frequently exposed to flames and affected by temperature gradients. Incompletely burned CO reacts with the lining bricks, causing structural changes in the refractory material. Simultaneously, low-melting-point phases formed by chemical reactions reduce the material's thermal and mechanical properties, leading to plastic deformation of the vault bricks. This deformation results in the sinking and collapse of the double-layer vault in the firing zone of the ceramic tunnel  furnace, posing a threat to the  furnace's structural integrity.

Our company's non-destructive cutting technology, combined with ceramic welding technology, successfully addressed the issue of the large arch in the tunnel  furnace.