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High-temperature-resistant phosphate bonded castable
The invention discloses a high-temperature-resistant phosphate bonded castable which is prepared from the following raw materials in percentage by mass: 55-65% of white corundum powder, 25-35% of tabular corundum powder, 5-6% of aluminum dihydrogen phosphate powder, 2-5% of alumina powder and 0.25-1.25% of magnesia. An original formula is improved, white corundum and tabular corundum are used as base materials, the particle size distribution of main raw materials is improved, alumina powder is adopted to replace silica fume in the same proportion, magnesia is added, the adding amount of the alumina powder is controlled, and the working temperature is increased; and the limitation that the use temperature of the product is limited by a binding agent and can only work within 1200 DEG C is broken, the problem that the mechanical strength of the slag line position in the furnace is reduced due to over-temperature work is solved, and the service life of the product is prolonged.
本发明公开一种耐高温的磷酸盐结合浇注料，以质量百分比计，其原料由以下组分组成：白刚玉粉55～65%，板状刚玉粉25～35%，磷酸二氢铝粉5～6%，氧化铝粉2～5%，镁砂0.25～1.25%。在原有的配方基础上进行改进，以白刚玉和板状刚玉做基料，对主原料粒度分布改进，采用氧化铝粉同比例代替硅灰及加入镁砂，并控制氧化铝粉加入量，提升其工作温度；打破产品的使用温度受限于结合剂只能在1200℃以内工作的限制，避免炉内渣线位置因超温工作机械强度降低的问题，延长产品的使用寿命。
High-temperature-resistant phosphate bonded castable
The invention discloses a high-temperature-resistant phosphate bonded castable which is prepared from the following raw materials in percentage by mass: 55-65% of white corundum powder, 25-35% of tabular corundum powder, 5-6% of aluminum dihydrogen phosphate powder, 2-5% of alumina powder and 0.25-1.25% of magnesia. An original formula is improved, white corundum and tabular corundum are used as base materials, the particle size distribution of main raw materials is improved, alumina powder is adopted to replace silica fume in the same proportion, magnesia is added, the adding amount of the alumina powder is controlled, and the working temperature is increased; and the limitation that the use temperature of the product is limited by a binding agent and can only work within 1200 DEG C is broken, the problem that the mechanical strength of the slag line position in the furnace is reduced due to over-temperature work is solved, and the service life of the product is prolonged.
本发明公开一种耐高温的磷酸盐结合浇注料，以质量百分比计，其原料由以下组分组成：白刚玉粉55～65%，板状刚玉粉25～35%，磷酸二氢铝粉5～6%，氧化铝粉2～5%，镁砂0.25～1.25%。在原有的配方基础上进行改进，以白刚玉和板状刚玉做基料，对主原料粒度分布改进，采用氧化铝粉同比例代替硅灰及加入镁砂，并控制氧化铝粉加入量，提升其工作温度；打破产品的使用温度受限于结合剂只能在1200℃以内工作的限制，避免炉内渣线位置因超温工作机械强度降低的问题，延长产品的使用寿命。
High-temperature-resistant phosphate bonded castable
一种耐高温的磷酸盐结合浇注料
XU YING (author) / ZHANG GUANGMING (author) / GUO RUNLAI (author)
2023-01-31
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Sol-bonded high-temperature high-strength wear-resistant castable and application method thereof
| European Patent Office | 2020