A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to chromium-free low-silicon stuffing sand which comprises the following components in percentage by weight: 97-99% of brown fused alumina or bauxite with the particle size of 1-0.1 mm; 1-3% of one or more of a sintering agent, albite, potassium feldspar or silica powder, and the particle size is 200-320 meshes. According to the chromium-free low-silicon ladle filler sand, SiO2 in the components is less than or equal to 10%, so that the influence of the ladle filler sand on the purity of molten steel can be reduced; and moreover, the stuffing sand is chromate-free, so that the pollution to the environment is reduced.
一种无铬低硅引流砂，其成分重量百分比为：棕刚玉或铝矾土，97～99％，其粒度为1～0.1mm；烧结剂，钠长石、钾长石或硅微粉中的一种或多种，1～3％，粒度为200～320目。本发明所述无铬低硅引流砂的成份中SiO2≤10％，可以减少引流砂对钢水纯净度的影响；而且，引流砂无铬化，减少对环境的污染。
The invention relates to chromium-free low-silicon stuffing sand which comprises the following components in percentage by weight: 97-99% of brown fused alumina or bauxite with the particle size of 1-0.1 mm; 1-3% of one or more of a sintering agent, albite, potassium feldspar or silica powder, and the particle size is 200-320 meshes. According to the chromium-free low-silicon ladle filler sand, SiO2 in the components is less than or equal to 10%, so that the influence of the ladle filler sand on the purity of molten steel can be reduced; and moreover, the stuffing sand is chromate-free, so that the pollution to the environment is reduced.
一种无铬低硅引流砂，其成分重量百分比为：棕刚玉或铝矾土，97～99％，其粒度为1～0.1mm；烧结剂，钠长石、钾长石或硅微粉中的一种或多种，1～3％，粒度为200～320目。本发明所述无铬低硅引流砂的成份中SiO2≤10％，可以减少引流砂对钢水纯净度的影响；而且，引流砂无铬化，减少对环境的污染。
Chromium-free low-silicon stuffing sand
一种无铬低硅引流砂
2024-10-25
Patent
Electronic Resource
Chinese
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