A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to steel ladle chromium-free stuffing sand which comprises the following components in percentage by weight: 97.5-98.5% of titanium calcium aluminate with the particle size of 1.2-0.1 mm; and 1.5-2.5% of a sintering agent, namely potassium feldspar and/or silica powder. According to the chromium-free ladle filler sand for the steel ladle, the titanium calcium aluminate is adopted as the main raw material to produce the ladle filler sand, and compared with chromium ladle filler sand, the influence of the ladle filler sand on the purity of tundish molten steel can be greatly reduced; moreover, the titanium calcium aluminate is an industrial by-product, the price is lower than that of the main raw material chromite of the current chrome stuffing sand, and the cost advantage is achieved.
一种钢包无铬引流砂，其成分重量百分比为：钛铝酸钙，97.5～98.5％，粒度为1.2～0.1mm；烧结剂，钾长石和/或硅微粉，1.5～2.5％。本发明所述钢包无铬引流砂，采用钛铝酸钙为主原料生产引流砂，与铬质引流砂相比，可以大大减少引流砂对中间包钢水纯净度的影响；而且，钛铝酸钙是工业副产品，价格低于目前铬质引流砂的主原料铬铁矿，具有成本优势。
The invention relates to steel ladle chromium-free stuffing sand which comprises the following components in percentage by weight: 97.5-98.5% of titanium calcium aluminate with the particle size of 1.2-0.1 mm; and 1.5-2.5% of a sintering agent, namely potassium feldspar and/or silica powder. According to the chromium-free ladle filler sand for the steel ladle, the titanium calcium aluminate is adopted as the main raw material to produce the ladle filler sand, and compared with chromium ladle filler sand, the influence of the ladle filler sand on the purity of tundish molten steel can be greatly reduced; moreover, the titanium calcium aluminate is an industrial by-product, the price is lower than that of the main raw material chromite of the current chrome stuffing sand, and the cost advantage is achieved.
一种钢包无铬引流砂，其成分重量百分比为：钛铝酸钙，97.5～98.5％，粒度为1.2～0.1mm；烧结剂，钾长石和/或硅微粉，1.5～2.5％。本发明所述钢包无铬引流砂，采用钛铝酸钙为主原料生产引流砂，与铬质引流砂相比，可以大大减少引流砂对中间包钢水纯净度的影响；而且，钛铝酸钙是工业副产品，价格低于目前铬质引流砂的主原料铬铁矿，具有成本优势。
Chromium-free ladle filler sand for steel ladle
一种钢包无铬引流砂
2024-10-01
Patent
Electronic Resource
Chinese
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