A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Ramming material for ferrosilicon ladle and preparation method of ramming material
The invention relates to the field of refractory materials, in particular to a ferrosilicon ladle ramming material which comprises 75-85 parts of aggregate, 10-18 parts of powder, 0.5-5 parts of anti-erosion agent and 0-2 parts of binding agent. Wherein the aggregate comprises silicon-carbon composite particles, each silicon-carbon composite particle comprises a porous graphite core and further comprises silicon dioxide used for filling and coating internal pores and the outer surface of the graphite core, and the surface and the internal pores of the carbon core are uniformly loaded with a boron compound. According to the ramming material for the ferrosilicon ladle, through reasonable configuration of the aggregate and the powder, the compactness of the ramming material after forming can be effectively improved. Meanwhile, silicon-carbon composite particles are introduced into the aggregate, so that the high-temperature resistance and the volume stability of the ramming material are further improved, meanwhile, the wettability between the ramming material and molten metal is poor, slag iron can be effectively prevented from being attached and permeating, and the service life of the ramming material is prolonged.
本发明涉及耐火材料领域，尤其涉及一种硅铁包用捣打料，其包括：骨料75~85份、粉料10~18份、抗侵蚀剂0.5~5份以及结合剂0~2份；其中：所述骨料中包括硅碳复合颗粒，其包括多孔的石墨质内核，还包括用于填充以及包覆石墨质内核内部孔隙以及外表面的二氧化硅，所述碳质内核的表面以及内部孔隙中均匀负载有硼化合物。本发明中的硅铁包用捣打料其通过骨料以及粉料之间的合理配置，能够有效提升捣打料在成型之后的致密性。同时，在骨料中引入硅碳复合颗粒，使得捣打料的耐高温性能以及体积稳定性进一步提升，同时其与熔融金属之间的浸润性较差，使得其能够有效防止渣铁的附着以渗透，延长了使用寿命。
Ramming material for ferrosilicon ladle and preparation method of ramming material
The invention relates to the field of refractory materials, in particular to a ferrosilicon ladle ramming material which comprises 75-85 parts of aggregate, 10-18 parts of powder, 0.5-5 parts of anti-erosion agent and 0-2 parts of binding agent. Wherein the aggregate comprises silicon-carbon composite particles, each silicon-carbon composite particle comprises a porous graphite core and further comprises silicon dioxide used for filling and coating internal pores and the outer surface of the graphite core, and the surface and the internal pores of the carbon core are uniformly loaded with a boron compound. According to the ramming material for the ferrosilicon ladle, through reasonable configuration of the aggregate and the powder, the compactness of the ramming material after forming can be effectively improved. Meanwhile, silicon-carbon composite particles are introduced into the aggregate, so that the high-temperature resistance and the volume stability of the ramming material are further improved, meanwhile, the wettability between the ramming material and molten metal is poor, slag iron can be effectively prevented from being attached and permeating, and the service life of the ramming material is prolonged.
本发明涉及耐火材料领域，尤其涉及一种硅铁包用捣打料，其包括：骨料75~85份、粉料10~18份、抗侵蚀剂0.5~5份以及结合剂0~2份；其中：所述骨料中包括硅碳复合颗粒，其包括多孔的石墨质内核，还包括用于填充以及包覆石墨质内核内部孔隙以及外表面的二氧化硅，所述碳质内核的表面以及内部孔隙中均匀负载有硼化合物。本发明中的硅铁包用捣打料其通过骨料以及粉料之间的合理配置，能够有效提升捣打料在成型之后的致密性。同时，在骨料中引入硅碳复合颗粒，使得捣打料的耐高温性能以及体积稳定性进一步提升，同时其与熔融金属之间的浸润性较差，使得其能够有效防止渣铁的附着以渗透，延长了使用寿命。
Ramming material for ferrosilicon ladle and preparation method of ramming material
一种硅铁包用捣打料及其制备方法
ZHU GUOPING (author) / WANG LIWANG (author) / WANG QI (author) / ZHU YUPING (author) / LI XINMING (author) / PENG JINGJING (author) / FANG LIHUA (author)
2022-04-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Ramming material for steel ladle and preparation method thereof
| European Patent Office | 2021
| European Patent Office | 2023