The role of metals in refractory mortar materials
Plastic phase forming:Under the action of stress, the lattice of the metal will slip, which has the characteristics of plasticity.Will be introduced into the refractory mortar material, relative to the hard inorganic material particles,It will exert the characteristics of plastic forming in the molding process, which is not added metal sample preparation in density under the same high pressure molding.
Acceleration of sintering:The effect of metals on refractory mortar materials can be attributed to two factors.One, the introduction of the formation of metal forming plastic phase can improve the density of the billet, shorten the distance between the particles, reducing the need for energy diffusion in the process of burning;Second, the melting point is generally lower than the refractory mortar material, it can be in the low temperature liquid, viscous flow capillary formation of liquid phase and its accelerated migration rate and the shrinkage of the body atoms, promotes the Sintering Densification Process.　　
Improved toughness:The metal by crack bridging, crack deflection and crack barrier mechanism to improve the toughness of the composites.
When the cracks extend to the metal material and the substrate material interface, because the ductility of metal particles, crack the stress of the crack will be stretched, the surface stress exerts a bridging,On the one hand, it can prevent the crack opening and reduce the intensity factor of the crack tip, and the plastic deformation occurs with the opening of the crack, which consumes the energy of the crack tip and plays the role of toughening.
Resistance to oxidation:Because of its excellent thermal shock resistance and slag resistance due to the existence of carbon, carbon composite refractory mortar material has the defects of easy oxidation. Once the carbon is oxidized, its advantages will be lost.In order to make full use of the advantages of carbon composite refractories, it is often used to add the appropriate additives to improve its oxidation resistance.The performance of metal O2 and CO and lively, easy reaction has been in refractories used as antioxidant, commonly used antioxidants are al, Si, Mg and the corresponding alloy etc.
In situ reaction to generate non oxide:The metal into refractory mortar material, in the firing process, formation of nonmetallic reinforcing and toughening phase with the gas composition of raw materials or around the reaction, can improve the substrate at room temperature and high temperature performance and thermal shock resistance effect. At present, this technology has been widely concerned.
From above we can know,the metal added to the refractory mortar material, the mechanical properties and oxidation resistance of refractory mortar materials have played a positive role.This indicates that they have wide application prospect in refractories. With the continuous breakthrough in the continuous development of science and technology and science, will continue to optimize the performance of metal composite materials, its application scope will be further expanded.

Taurus Refractory ramming mass Factory mainly engaged in professional manufacturer of development, production and sales of the refractory mixture such as melting copper, aluminum and zinc furnace lining. And supply castable refractory for copper smelting, ramming mass for molten copper,fire clay,refractory mortar, refractory cement ,refractory mixture, refractory concrete and silica sand for copper smelting.
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