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Refractoriness is different from melting point, melting point is the balance temperature that materials reach to melting point which is between solid and liquid crystal, however, refractoriness is a process in which the solid phase of the material is gradually dissolved in the liquid phase and finally is melted with the increasing temperature.

Refractoriness of zircon brick refers to the property that refractory’s multiphase reaches to a specific softening degree when at high temperature without any load, which shows the ability of resistance to high temperature. It is a basic scale to measure the ability of resistance to high temperature and basic technical index to show its high temperature property. Meanwhile, refractoriness is an important index to judge whether this refractory product is suitable to buyer’s high temperature furnace. One thing we need to know is that only if the refractoriness of Inorganic non metallic materials up to 1500℃ can be called refractory material.

The chemical and mineral composition, distribution and combination of each phase have a decisive influence on refractoriness of refractory, such as zircon brick. All kinds of impurities can seriously reduce the refractoriness, so it is pretty important to improve the purity of raw material and strictly control the content of impurity.

However, in actual application, besides the high temperature, refractory is also corrosive by other impurity, working environment is quite complicated, so refractoriness is used as a reference, and can not be more accurate data.

Zhengzhou Sunrise Refractory Co., Ltd. is mainly engaged in the research and development of refractory products. Sunrise can provide zircon brick which has passed the ISO international certified. Over 30 years producing and marketing experience, with reliable quality, competitive price and prompt delivery, Sunrise has established long-term business and cooperation relationship with many customers in different countries and regions. For any further information, Contact us, we will do our best to help you.