Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to the technical field of refractory materials, and especially relates to a basic refractory material for coreless induction furnaces. The basic refractory material comprises thefollowing raw materials in percentage by weight: 60-80% of natural magnesia, 5-15% of fused quartz, 1-6% of boric acid or boric anhydride; 1-5% of phenolic resin, 5-10% of zirconia, and 5-15% of calcium oxide, wherein the natural magnesia is composed of a plurality of natural magnesia with different particle sizes, and the mass percentages of the natural magnesia with different particle sizes relative to the total mass of the natural magnesia are as follows: 35-50% of silica sand with the particle size of 0-1mm, 20-40% of silica sand with the particle size of 1-3mm, and 20-50% of silica sandwith the particle size of 3-6mm. The natural magnesia with different granularities is mixed according to a certain proportion, and a proper amount of additives and a binding agent is added into the natural magnesia, the corrosion resistance, permeation resistance and shock cooling and heating resistance of the furnace lining are improved, the prepared furnace lining is good in compactness, low inporosity and small in thermal expansion coefficient, and the service life of an induction circuit is prolonged.
本发明涉及耐火材料技术领域，尤其涉及一种无芯感应电炉用碱性耐火材料，包括以下重量百分比的原料，天然镁砂60~80%，电熔石英为5~15%，硼酸或硼酐为1~6%，酚醛树脂1~5%，氧化锆5~10%，氧化钙为5%~15%，其中所述天然镁砂由多种不同粒径的天然镁砂组成，各粒径天然镁砂相对天然镁砂总量的质量百分比分别为：粒径为0~1mm的硅矿砂为35~50%，粒径为1~3mm的硅矿砂为20~40%，粒径为3~6mm的硅矿砂20~50%。本发明采用不同粒度的天然镁砂按照一定的比例混合，并在天然镁砂中加入适量的添加剂和结合剂，提高炉衬的耐腐蚀性，抗渗透性和抗急冷急热性，使制得的炉衬致密性好、气孔率低、热膨胀系数小，提高感应电路的使用寿命。
The invention relates to the technical field of refractory materials, and especially relates to a basic refractory material for coreless induction furnaces. The basic refractory material comprises thefollowing raw materials in percentage by weight: 60-80% of natural magnesia, 5-15% of fused quartz, 1-6% of boric acid or boric anhydride; 1-5% of phenolic resin, 5-10% of zirconia, and 5-15% of calcium oxide, wherein the natural magnesia is composed of a plurality of natural magnesia with different particle sizes, and the mass percentages of the natural magnesia with different particle sizes relative to the total mass of the natural magnesia are as follows: 35-50% of silica sand with the particle size of 0-1mm, 20-40% of silica sand with the particle size of 1-3mm, and 20-50% of silica sandwith the particle size of 3-6mm. The natural magnesia with different granularities is mixed according to a certain proportion, and a proper amount of additives and a binding agent is added into the natural magnesia, the corrosion resistance, permeation resistance and shock cooling and heating resistance of the furnace lining are improved, the prepared furnace lining is good in compactness, low inporosity and small in thermal expansion coefficient, and the service life of an induction circuit is prolonged.
本发明涉及耐火材料技术领域，尤其涉及一种无芯感应电炉用碱性耐火材料，包括以下重量百分比的原料，天然镁砂60~80%，电熔石英为5~15%，硼酸或硼酐为1~6%，酚醛树脂1~5%，氧化锆5~10%，氧化钙为5%~15%，其中所述天然镁砂由多种不同粒径的天然镁砂组成，各粒径天然镁砂相对天然镁砂总量的质量百分比分别为：粒径为0~1mm的硅矿砂为35~50%，粒径为1~3mm的硅矿砂为20~40%，粒径为3~6mm的硅矿砂20~50%。本发明采用不同粒度的天然镁砂按照一定的比例混合，并在天然镁砂中加入适量的添加剂和结合剂，提高炉衬的耐腐蚀性，抗渗透性和抗急冷急热性，使制得的炉衬致密性好、气孔率低、热膨胀系数小，提高感应电路的使用寿命。
Basic refractory material for coreless induction furnace and preparation method thereof
无芯感应电炉用碱性耐火材料及其制备方法
LI BING (Autor:in)
23.06.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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