Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a forsterite tundish slag blocking wall castable and a preparation process thereof. The tundish slag blocking wall provided by the invention is prepared from the following raw materials in parts by mass: 25-35 parts of forsterite, 25-35 parts of regenerated magnesium spinel particles, 1-10 parts of quartz sand, 10-25 parts of fine powder, 2-5 parts of a dispersing agent, 3-5 parts of silica powder, 0.1 part of organic fibers and 0.1 part of a retarder. In order to solve the problem of cracks of magnesium products and the problems of fragmentation, bulging, collapse and the like in use, the characteristics of high melting point, low thermal expansion coefficient, high thermal shock resistance and high erosion resistance of the native olivine and the quartz sand are utilized, and a method of adding silica powder as a binding agent is adopted; the tundish slag blocking wall which is low in cost, good in thermal shock resistance stability, high in qualified rate and capable of obviously improving the cracking condition is prepared.
本发明公开了一种镁橄榄石中间包挡渣墙浇注料及其制备工艺，本发明提供的中间包挡渣墙由以下质量份的原料组成：镁橄榄石25～35份、再生镁尖晶石颗粒25～35份、石英砂1～10份、细粉10～25份、分散剂2～5份、硅微粉3～5份、有机纤维0.1份、缓凝剂0.1份。本发明为解决镁质产品裂纹问题及使用中存在的碎裂、鼓肚、垮塌等问题，利用原生橄榄石和石英砂熔点高、热膨胀系数低、热震稳定性高、耐侵蚀性高的特性，采取添加硅微粉作结合剂的方法，制备了成本低廉、耐热震稳定性好、合格率高、开裂情况改善明显的中间包挡渣墙。
The invention discloses a forsterite tundish slag blocking wall castable and a preparation process thereof. The tundish slag blocking wall provided by the invention is prepared from the following raw materials in parts by mass: 25-35 parts of forsterite, 25-35 parts of regenerated magnesium spinel particles, 1-10 parts of quartz sand, 10-25 parts of fine powder, 2-5 parts of a dispersing agent, 3-5 parts of silica powder, 0.1 part of organic fibers and 0.1 part of a retarder. In order to solve the problem of cracks of magnesium products and the problems of fragmentation, bulging, collapse and the like in use, the characteristics of high melting point, low thermal expansion coefficient, high thermal shock resistance and high erosion resistance of the native olivine and the quartz sand are utilized, and a method of adding silica powder as a binding agent is adopted; the tundish slag blocking wall which is low in cost, good in thermal shock resistance stability, high in qualified rate and capable of obviously improving the cracking condition is prepared.
本发明公开了一种镁橄榄石中间包挡渣墙浇注料及其制备工艺，本发明提供的中间包挡渣墙由以下质量份的原料组成：镁橄榄石25～35份、再生镁尖晶石颗粒25～35份、石英砂1～10份、细粉10～25份、分散剂2～5份、硅微粉3～5份、有机纤维0.1份、缓凝剂0.1份。本发明为解决镁质产品裂纹问题及使用中存在的碎裂、鼓肚、垮塌等问题，利用原生橄榄石和石英砂熔点高、热膨胀系数低、热震稳定性高、耐侵蚀性高的特性，采取添加硅微粉作结合剂的方法，制备了成本低廉、耐热震稳定性好、合格率高、开裂情况改善明显的中间包挡渣墙。
Forsterite tundish slag wall castable and preparation process thereof
一种镁橄榄石中间包挡渣墙浇注料及其制备工艺
20.09.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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