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发明公开
CN103755359A 一种Al2O3-Cr2O3耐火制品的磷熏蒸制备方法 有权

一种Al2O3-Cr2O3耐火制品的磷熏蒸制备方法
摘要：
本发明属于耐火材料领域，主要涉及一种Al2O3-Cr2O3耐火制品的磷熏蒸制备方法。所述的Al2O3-Cr2O3耐火制品中含有P2O5成分且P2O5占制品总质量的0.8%~5%；所述的Al2O3-Cr2O3耐火制品，P2O5成分的加入方式为坯体烧成中采用磷熏蒸的工艺；所述的Al2O3-Cr2O3耐火制品中P2O5成分在制品中存在梯度分布，由制品表面向内部P2O5成分递减。本发明使Al2O3-Cr2O3耐火制品中具有所需的P2O5成分，改善Al2O3-Cr2O3耐火制品的微观结构，提高制品抗熔渣侵蚀性和抗熔渣渗透性等，进而提升Al2O3-Cr2O3耐火制品的使用性能和使用寿命。
摘要（英）：

The invention belongs to the field of refractory materials, and mainly relates to a phosphorus fumigation preparation method for a refractory Al2O3-Cr2O3 product. The refractory Al2O3-Cr2O3 product contains 0.8 to 5 mass percent of P2O5, wherein P2O5 is added in a way that a phosphorus fumigation process is adopted during the firing of a green body, forms gradient distribution in the refractory Al2O3-Cr2O3 product, and is progressively decreased from the surface to the inside of the product. According to the method, the refractory Al2O3-Cr2O3 product contains required P2O5, so that the microstructure of the refractory Al2O3-Cr2O3 product is improved, the slag erosion resistance, slag permeability and the like of the product are improved, the service performance of the refractory Al2O3-Cr2O3 product is further improved, and the service life of the refractory Al2O3-Cr2O3 product is prolonged.

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