Along with the installed thickness, the type of concrete and the demoulding time, the external temperature is a variable to take into consideration when we define when to demould the lining. We analyze how it influences the setting time of the refractory castable In many occasions, we are in a hurry to remove the mould after the installation of a refractory castable.
A production shutdown is an opportunity to inspect, repair and prepare the lining of the facilities: pre/post shutdown guidelines for induction, channel and aluminium furnaces and ladles.
From a refractory point of view we can present solid and liquid sinterings, each with its advantages and disadvantages that are subject to the need/experience/knowledge of the client.
Guiding this 4R paradigm (Reduce-Reuse-Reinvent-Recycle) by adding one more R, 5R being this fifth Reeducate in the steel and refractory sector we enrolled in 2 projects with the help of European funds within the LIFE programme with leading companies in several related sectors.
The elimination of water from the refractory material must be progressive and carried out at a controlled speed determined by the characteristics of the product, the quantity, the thickness and the thermal profile of the lining to be dried.
Following are some of the advantages of phosphate-bonded refractory products.
Electric arc furnace roofs and treatmeant ladles have an important role in the steel-making process. They are lined with bricks and/or castings and, depending on the size of the furnace, may or may not be refrigerated by water.
The main advice is periodic maintenance. They are the best prevention. With this in mind, there are three main points that will help us.
Corundum formation and its subsequent destruction of the furnace lining can be a constant worry to the maintenance department. The picture below is all too common of a reality in a typical Aluminium Foundry. The following conditions facilitate corundum formation: • Excessive free silica in the ref ...
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