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A platform for research: civil engineering, architecture and urbanism
Unfired magnesia carbon brick as well as preparation method and application thereof
The invention belongs to the technical field of refractory materials, and relates to an unfired magnesia carbon brick as well as a preparation method and application thereof. The unfired magnesia carbon brick comprises the following components of: 2% to 6% of C, 87% to 92 % of MgO, 1% to 5% of SiO2, 1% to 3 % of CaO and 1% to 3 % of Al2O3. In actual production, the unfired magnesia carbon brick provided by the invention is used in a VOD steel ladle, so that the consumption of a refractory material of the steel ladle can be reduced, the service life of the steel ladle is prolonged, the number of vacuum smelting furnaces of the steel ladle is increased to 15 from 3, the service life of the steel ladle is increased to 80 furnaces from 28 furnaces, meanwhile, the production cost is reduced, and the purity of molten steel is favorably controlled. The unfired magnesia carbon brick comprises carbon, magnesium oxide, silicon dioxide, calcium oxide and aluminum oxide in specific quantities, the components are simple and easy to obtain; and when the unfired magnesia carbon brick is used in the VOD steel ladle, the erosion resistance, oxidation resistance and thermal shock resistance of the steel ladle can be remarkably improved.
本发明属于耐火材料技术领域，具体涉及一种不烧镁碳砖及其制备方法和应用。该不烧镁碳砖的组分包括2‑6%C、87‑92%MgO、1‑5%SiO2、1‑3%CaO和1‑3%Al2O3。在实际生产中，将本发明提供的不烧镁碳砖用于VOD钢包中，可以减少钢包耐火材料的消耗，延长钢包的使用寿命，实现了钢包真空冶炼炉数由3炉提高至15炉，钢包包龄由28炉提高至80炉，同时降低生产成本，有利于控制钢液的纯净度。本发明不烧镁碳砖的组分包括特定用量的碳、氧化镁、二氧化硅、氧化钙和氧化铝，组分简单，易得，将其用于VOD钢包中可以显著提高钢包的抗侵蚀性、抗氧化性和抗热热震性。
Unfired magnesia carbon brick as well as preparation method and application thereof
The invention belongs to the technical field of refractory materials, and relates to an unfired magnesia carbon brick as well as a preparation method and application thereof. The unfired magnesia carbon brick comprises the following components of: 2% to 6% of C, 87% to 92 % of MgO, 1% to 5% of SiO2, 1% to 3 % of CaO and 1% to 3 % of Al2O3. In actual production, the unfired magnesia carbon brick provided by the invention is used in a VOD steel ladle, so that the consumption of a refractory material of the steel ladle can be reduced, the service life of the steel ladle is prolonged, the number of vacuum smelting furnaces of the steel ladle is increased to 15 from 3, the service life of the steel ladle is increased to 80 furnaces from 28 furnaces, meanwhile, the production cost is reduced, and the purity of molten steel is favorably controlled. The unfired magnesia carbon brick comprises carbon, magnesium oxide, silicon dioxide, calcium oxide and aluminum oxide in specific quantities, the components are simple and easy to obtain; and when the unfired magnesia carbon brick is used in the VOD steel ladle, the erosion resistance, oxidation resistance and thermal shock resistance of the steel ladle can be remarkably improved.
本发明属于耐火材料技术领域，具体涉及一种不烧镁碳砖及其制备方法和应用。该不烧镁碳砖的组分包括2‑6%C、87‑92%MgO、1‑5%SiO2、1‑3%CaO和1‑3%Al2O3。在实际生产中，将本发明提供的不烧镁碳砖用于VOD钢包中，可以减少钢包耐火材料的消耗，延长钢包的使用寿命，实现了钢包真空冶炼炉数由3炉提高至15炉，钢包包龄由28炉提高至80炉，同时降低生产成本，有利于控制钢液的纯净度。本发明不烧镁碳砖的组分包括特定用量的碳、氧化镁、二氧化硅、氧化钙和氧化铝，组分简单，易得，将其用于VOD钢包中可以显著提高钢包的抗侵蚀性、抗氧化性和抗热热震性。
Unfired magnesia carbon brick as well as preparation method and application thereof
一种不烧镁碳砖及其制备方法和应用
LI YUZHANG (author) / LI WEIJIE (author) / XIAO QINGHAI (author)
2022-01-18
Patent
Electronic Resource
Chinese
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