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A platform for research: civil engineering, architecture and urbanism
Steel ladle low-carbon working lining brick
The invention discloses a steel ladle low-carbon working lining brick, which is prepared from the following raw materials in percentage by weight: 50 to 70 percent of corundum particles, 2 to 10 percent of magnesia particles, 15 to 22 percent of corundum fine powder, 2 to 6 percent of magnesium oxide micro powder, 1 to 5 percent of activated aluminum oxide micro powder, 0.5 to 3 percent of graphite powder, 0.2 to 0.5 percent of silicon carbide powder, 1 to 3 percent of lanthanum oxide powder, 0.4 to 0.7 percent of metal aluminum powder, 0.2 to 0.5 percent of metal titanium powder and 4 to 9 percent of aluminum-calcium slag powder. The preparation method comprises the following steps of firstly, mixing all the raw materials except the aluminum-calcium slag powder, performing dry pressing to obtain a green brick, putting the green brick into a graphite crucible of which the length, width and height of an inner cavity are greater than those of the green brick by 5%, and wrapping the graphite crucible with heat-insulating fiber cotton, and pouring the molten liquid-state aluminum-calcium slag powder into the graphite crucible, quickly covering the graphite crucible with a fiber plate cover, naturally cooling to room temperature, and removing the graphite crucible to obtain the finished product steel ladle low-carbon working lining brick. The steel ladle low-carbon working lining brick prepared by the invention does not need to use a resin binder, is environment-friendly and does not cause pollution to the environment.
本发明公开了一种钢包低碳工作衬砖，是由原料50～70wt%的刚玉颗粒，2～10wt%的镁砂颗粒，15～22wt%的刚玉细粉，2～6wt%的氧化镁微粉，1～5wt％的活性氧化铝微粉，0.5～3wt％的石墨粉，0.2～0.5wt％的碳化硅粉，1～3wt％的氧化镧粉，0.4～0.7wt％的金属铝粉，0.2～0.5wt％的金属钛粉，4～9wt%的铝钙渣粉制备而成：首先将除铝钙渣粉外的所有原料混合后干压成砖坯后放入内腔长、宽、高尺寸均比砖坯的尺寸大5%的石墨坩埚内，并在石墨坩埚外包裹隔热纤维棉；将熔融成液态的铝钙渣粉浇注到石墨坩埚内，并迅速盖上纤维板盖，自然冷却至室温后脱除石墨坩埚，即得到成品钢包低碳工作衬砖。本发明制备的钢包低碳工作衬砖无需使用树脂结合剂，环境友好，不会对环境造成污染。
Steel ladle low-carbon working lining brick
The invention discloses a steel ladle low-carbon working lining brick, which is prepared from the following raw materials in percentage by weight: 50 to 70 percent of corundum particles, 2 to 10 percent of magnesia particles, 15 to 22 percent of corundum fine powder, 2 to 6 percent of magnesium oxide micro powder, 1 to 5 percent of activated aluminum oxide micro powder, 0.5 to 3 percent of graphite powder, 0.2 to 0.5 percent of silicon carbide powder, 1 to 3 percent of lanthanum oxide powder, 0.4 to 0.7 percent of metal aluminum powder, 0.2 to 0.5 percent of metal titanium powder and 4 to 9 percent of aluminum-calcium slag powder. The preparation method comprises the following steps of firstly, mixing all the raw materials except the aluminum-calcium slag powder, performing dry pressing to obtain a green brick, putting the green brick into a graphite crucible of which the length, width and height of an inner cavity are greater than those of the green brick by 5%, and wrapping the graphite crucible with heat-insulating fiber cotton, and pouring the molten liquid-state aluminum-calcium slag powder into the graphite crucible, quickly covering the graphite crucible with a fiber plate cover, naturally cooling to room temperature, and removing the graphite crucible to obtain the finished product steel ladle low-carbon working lining brick. The steel ladle low-carbon working lining brick prepared by the invention does not need to use a resin binder, is environment-friendly and does not cause pollution to the environment.
本发明公开了一种钢包低碳工作衬砖，是由原料50～70wt%的刚玉颗粒，2～10wt%的镁砂颗粒，15～22wt%的刚玉细粉，2～6wt%的氧化镁微粉，1～5wt％的活性氧化铝微粉，0.5～3wt％的石墨粉，0.2～0.5wt％的碳化硅粉，1～3wt％的氧化镧粉，0.4～0.7wt％的金属铝粉，0.2～0.5wt％的金属钛粉，4～9wt%的铝钙渣粉制备而成：首先将除铝钙渣粉外的所有原料混合后干压成砖坯后放入内腔长、宽、高尺寸均比砖坯的尺寸大5%的石墨坩埚内，并在石墨坩埚外包裹隔热纤维棉；将熔融成液态的铝钙渣粉浇注到石墨坩埚内，并迅速盖上纤维板盖，自然冷却至室温后脱除石墨坩埚，即得到成品钢包低碳工作衬砖。本发明制备的钢包低碳工作衬砖无需使用树脂结合剂，环境友好，不会对环境造成污染。
Steel ladle low-carbon working lining brick
一种钢包低碳工作衬砖
HOU HUIFENG (author) / HUANG AO (author) / HOU ZHENDONG (author) / WANG JUNCHAO (author)
2021-08-24
Patent
Electronic Resource
Chinese
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