Corrosion of refractories: development of a laboratory test

In the scope of refractories the characterisation of its behaviour faced wi th slag corrosive attacks that can appear during service has a great signif icance. However, satandarized laboratory tests for this characterization ar e not generally accepted by manufacturers and users of these refractories. The present report shows the development works for an inmersion type corros ion test. This test keeps the samples continuously moving inside the melt s lag bath in order to accelerate (never modifying) the corrosion mechanisms, since this motion avoids the generation of a "non-active" slag zone all ar ound the samples. The results of the first proofs show the suitability of this test as a labo ratory test. It allows to achieve high corrosion levels in a very short tim e. Also, the ability for testing several samples simultaneously allows to g et comparative results with high rapidity and reliability.