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本文用热力学原理分析了Si-Mn氧化物还原的热力学条件,并根据其热力学分析结果,对水雾化Si-Mn钢粉采用热塑性树脂涂层,在高纯氮气氛中进行脱氧的新工艺研究。使水雾文Si-Mn钢粉在1280℃,1330℃温度下保温120分钟后,其含氧量由3060P.P.M左右降至300P.P.M以下。同时测定了在还原脱氧过程中,不同的树脂用量与还原后钢粉中含氧量之间的关系。解决了含Si Mn等难还原元素水雾化钢粉非真空脱氧问题。
In this paper, the thermodynamic principle of Si-Mn oxide reduction thermodynamic conditions were analyzed, and according to the results of their thermodynamic analysis of water-atomized Si-Mn steel powder coated with a thermoplastic resin, high-purity nitrogen in the deoxygenation of new technology research . The water mist Si-Mn steel powder at 1280 ° C, 1330 ° C temperature for 120 minutes, the oxygen content from 3060P.P. M or so down to 300P.P. M or less. At the same time, the relationship between the amount of resin and the oxygen content in the steel powder after reduction was determined during the reduction and deoxidation process. Solve the problem of non-vacuum deoxidation of water-atomized steel powder containing Si Mn and other refractory elements.