Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-cost SiAlON-SiC-MgO composite refractory material and preparation method thereof
The invention relates to the technical field of refractory materials, in particular to a low-cost SiAlON-SiC-MgO composite refractory material and a preparation method thereof, and the preparation method comprises the following steps: (1) raw material pretreatment; (2) mixing: weighing the fused magnesite processing waste, the bauxite tailing fine powder, the crystalline silicon cutting waste subjected to calcination pretreatment and industrial AlN powder according to a mass ratio, and then carrying out ball milling for 5-10 hours in a high-energy planetary ball mill by taking ethanol as a ball milling medium at the rotating speed of 300-500r/min to form a mixed raw material; (3) molding: adding a binder with the mass content of 3-8% into the uniformly ball-milled mixed raw material, and pressing under 100-200MPa to obtain a green body; (4) drying; and (5) high-temperature carbon burying sintering. The SiAlON-SiC-MgO composite refractory material is prepared by taking industrial wastes and tailings as main raw materials and adopting a one-step process carbon burying solid-phase reaction method, the densification degree is higher, and the comprehensive performance is better.
本发明涉及耐火材料技术领域，尤其涉及一种低成本SiAlON‑SiC‑MgO复合耐火材料及其制备方法，包括以下步骤：(1)原料预处理；(2)混料：将电熔镁砂加工废料、铝矾土尾矿细粉、煅烧预处理的晶体硅切割废料和工业AlN粉按质量比进行称量，然后在高能行星球磨机中以乙醇为球磨介质，于300～500r/min转速下球磨5～10h，形成混合原料；(3)成型：向球磨均匀的混合原料中添加质量含量3％～8％的粘结剂，在100～200MPa下压制成生坯；(4)干燥；(5)高温埋碳烧结。本发明以工业废料和尾矿为主要原料采用一步工艺埋碳固相反应法制成SiAlON‑SiC‑MgO复合耐火材料，致密化程度更高，综合性能更佳。
Low-cost SiAlON-SiC-MgO composite refractory material and preparation method thereof
The invention relates to the technical field of refractory materials, in particular to a low-cost SiAlON-SiC-MgO composite refractory material and a preparation method thereof, and the preparation method comprises the following steps: (1) raw material pretreatment; (2) mixing: weighing the fused magnesite processing waste, the bauxite tailing fine powder, the crystalline silicon cutting waste subjected to calcination pretreatment and industrial AlN powder according to a mass ratio, and then carrying out ball milling for 5-10 hours in a high-energy planetary ball mill by taking ethanol as a ball milling medium at the rotating speed of 300-500r/min to form a mixed raw material; (3) molding: adding a binder with the mass content of 3-8% into the uniformly ball-milled mixed raw material, and pressing under 100-200MPa to obtain a green body; (4) drying; and (5) high-temperature carbon burying sintering. The SiAlON-SiC-MgO composite refractory material is prepared by taking industrial wastes and tailings as main raw materials and adopting a one-step process carbon burying solid-phase reaction method, the densification degree is higher, and the comprehensive performance is better.
本发明涉及耐火材料技术领域，尤其涉及一种低成本SiAlON‑SiC‑MgO复合耐火材料及其制备方法，包括以下步骤：(1)原料预处理；(2)混料：将电熔镁砂加工废料、铝矾土尾矿细粉、煅烧预处理的晶体硅切割废料和工业AlN粉按质量比进行称量，然后在高能行星球磨机中以乙醇为球磨介质，于300～500r/min转速下球磨5～10h，形成混合原料；(3)成型：向球磨均匀的混合原料中添加质量含量3％～8％的粘结剂，在100～200MPa下压制成生坯；(4)干燥；(5)高温埋碳烧结。本发明以工业废料和尾矿为主要原料采用一步工艺埋碳固相反应法制成SiAlON‑SiC‑MgO复合耐火材料，致密化程度更高，综合性能更佳。
Low-cost SiAlON-SiC-MgO composite refractory material and preparation method thereof
一种低成本SiAlON-SiC-MgO复合耐火材料及其制备方法
MA BEIYUE (Autor:in) / YUAN XIAOZHOU (Autor:in) / FU GAOFENG (Autor:in) / YING ZIWEI (Autor:in)
26.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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