Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to the technical field of refractory materials, and in particular, relates to a machine-pressed carbon-free ladle brick containing a composite binding agent and a preparation method of the machine-pressed carbon-free ladle brick. The ladle brick comprises the following raw materials in percentage by weight: 15-30% of tabular corundum with the particle size of more than 3 mm and less than or equal to 5 mm, 15-30% of tabular corundum with the particle size of more than 1 mm and less than or equal to 3 mm, 10-25% of tabular corundum with the particle size of more than 0.088 mm and less than or equal to 1 mm, 5-15% of fused corundum powder with the particle size more than 0 mm and smaller than or equal to 0.088 mm, 10-20% of activated aluminum oxide micro powder, 3-12% of spinel micro powder, and 3-7% of a composite binder. According to the invention, the composite binder is added into the raw materials, so that better bonding strength and a good mixing effect are achieved, the volume density of a formed green brick is greatly improved, the porosity is obviously reduced, and the green brick has good high-temperature strength, thermal shock stability, erosion resistance and long service life.
本发明涉及耐火材料技术领域，具体是一种含复合结合剂的机压无碳钢包砖及其制备方法，该钢包砖包括按重量百分比计的以下原料：3mm＜粒度≤5mm的板状刚玉15～30％；1mm＜粒度≤3mm的板状刚玉15～30％；0.088mm＜粒度≤1mm的板状刚玉10～25％；0mm＜粒度≤0.088mm的电熔刚玉粉5～15％；活性氧化铝微粉10～20％；尖晶石微粉3～12％；复合结合剂3～7％。本发明的原料中加入复合结合剂，具有较好的结合强度，非常好的混料效果，成型后砖坯的体积密度有很大提高，气孔率明显降低，而且具有较好的高温强度、热震稳定性、抗侵蚀性能和使用寿命。
The invention relates to the technical field of refractory materials, and in particular, relates to a machine-pressed carbon-free ladle brick containing a composite binding agent and a preparation method of the machine-pressed carbon-free ladle brick. The ladle brick comprises the following raw materials in percentage by weight: 15-30% of tabular corundum with the particle size of more than 3 mm and less than or equal to 5 mm, 15-30% of tabular corundum with the particle size of more than 1 mm and less than or equal to 3 mm, 10-25% of tabular corundum with the particle size of more than 0.088 mm and less than or equal to 1 mm, 5-15% of fused corundum powder with the particle size more than 0 mm and smaller than or equal to 0.088 mm, 10-20% of activated aluminum oxide micro powder, 3-12% of spinel micro powder, and 3-7% of a composite binder. According to the invention, the composite binder is added into the raw materials, so that better bonding strength and a good mixing effect are achieved, the volume density of a formed green brick is greatly improved, the porosity is obviously reduced, and the green brick has good high-temperature strength, thermal shock stability, erosion resistance and long service life.
本发明涉及耐火材料技术领域，具体是一种含复合结合剂的机压无碳钢包砖及其制备方法，该钢包砖包括按重量百分比计的以下原料：3mm＜粒度≤5mm的板状刚玉15～30％；1mm＜粒度≤3mm的板状刚玉15～30％；0.088mm＜粒度≤1mm的板状刚玉10～25％；0mm＜粒度≤0.088mm的电熔刚玉粉5～15％；活性氧化铝微粉10～20％；尖晶石微粉3～12％；复合结合剂3～7％。本发明的原料中加入复合结合剂，具有较好的结合强度，非常好的混料效果，成型后砖坯的体积密度有很大提高，气孔率明显降低，而且具有较好的高温强度、热震稳定性、抗侵蚀性能和使用寿命。
Machine-pressed carbon-free ladle brick containing composite binding agent and preparation method of machine-pressed carbon-free ladle brick
一种含复合结合剂的机压无碳钢包砖及其制备方法
29.06.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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