Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Sintering molding process of refractory material
The invention discloses a sintering molding process of a refractory material. A proportional mixture of magnesium oxide, silicon carbide, boron carbide, aluminum nitride or silicon nitride of which the particle size is less than 1 mm is used as a matrix; a proportional mixture of alkali-resistant clay, calcined bauxite and cordierite with three different particle sizes is used as an aggregate; a proportional mixture of perlite, vermiculite and foamed aluminum oxide with the particle size of 1-3 mm is used as a light filler and mixed with a two-component binding agent, carbon material modifiedphenolic resin is added into the binding agent, the two-component binding agent is added in two times for mixing, and a refractory material green body is pressed after mixing is completed; and three-stage heat treatment is carried out on the refractory material green body, and natural cooling is carried out to room temperature along with the furnace to obtain the finished product. The prepared refractory material has excellent thermal shock property and compactness, so that the material has the characteristic of stable crack propagation, the compactness and thermal shock property of the product are improved, and the mechanical property is also improved.
本发明公开了一种耐火材料的烧结成型工艺，其利用粒径＜1mm的氧化镁、碳化硅、碳化硼、氮化铝或者氮化硅的比例混合物作为基质；利用具有三类不同粒径的耐碱粘土、煅烧铝土矿、堇青石的比例混合物作为骨料；利用粒径为1~3mm的珍珠岩、蛭石、泡沫氧化铝的比例混合物作为轻质填料通过双组份的结合剂进行混合后制备，其在结合剂添加有炭素材料改性的酚醛树脂，并将双组份的结合剂分两次加入进行混料并在混料完成后压制成耐火材料生坯，耐火材料生坯进行三段式热处理后随炉自然冷却至室温即得成品。本发明制得耐火材料具有优良的热震性能和致密性，使得材料具有稳定裂纹扩展的特征，使得产品的致密性和热震性能得到了提升，力学性能也得到了提升。
Sintering molding process of refractory material
The invention discloses a sintering molding process of a refractory material. A proportional mixture of magnesium oxide, silicon carbide, boron carbide, aluminum nitride or silicon nitride of which the particle size is less than 1 mm is used as a matrix; a proportional mixture of alkali-resistant clay, calcined bauxite and cordierite with three different particle sizes is used as an aggregate; a proportional mixture of perlite, vermiculite and foamed aluminum oxide with the particle size of 1-3 mm is used as a light filler and mixed with a two-component binding agent, carbon material modifiedphenolic resin is added into the binding agent, the two-component binding agent is added in two times for mixing, and a refractory material green body is pressed after mixing is completed; and three-stage heat treatment is carried out on the refractory material green body, and natural cooling is carried out to room temperature along with the furnace to obtain the finished product. The prepared refractory material has excellent thermal shock property and compactness, so that the material has the characteristic of stable crack propagation, the compactness and thermal shock property of the product are improved, and the mechanical property is also improved.
本发明公开了一种耐火材料的烧结成型工艺，其利用粒径＜1mm的氧化镁、碳化硅、碳化硼、氮化铝或者氮化硅的比例混合物作为基质；利用具有三类不同粒径的耐碱粘土、煅烧铝土矿、堇青石的比例混合物作为骨料；利用粒径为1~3mm的珍珠岩、蛭石、泡沫氧化铝的比例混合物作为轻质填料通过双组份的结合剂进行混合后制备，其在结合剂添加有炭素材料改性的酚醛树脂，并将双组份的结合剂分两次加入进行混料并在混料完成后压制成耐火材料生坯，耐火材料生坯进行三段式热处理后随炉自然冷却至室温即得成品。本发明制得耐火材料具有优良的热震性能和致密性，使得材料具有稳定裂纹扩展的特征，使得产品的致密性和热震性能得到了提升，力学性能也得到了提升。
Sintering molding process of refractory material
一种耐火材料的烧结成型工艺
LI SHANPING (Autor:in) / LI XIN (Autor:in)
23.02.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
POWDER MOLDING MATERIAL, SINTERING MOLDING AND METHOD FOR PRODUCING SINTERING MOLDING
| Europäisches Patentamt | 2021