论文部分内容阅读
我们针对氧化铝物料的难熔性,作了熔剂的选择、配比及熔融温度的试验。文献采用二种方法分解试样;2克氧化铝以2.8克碳酸锂、6.2克硼酸于1000℃熔融一小时。高压闷罐法:1.0克试样以7.3毫升盐酸(比重1.19)在250℃温度下放置16小时。文献以焦硫酸钾分解试样,我们经实验,认为处理试样的时间长、即使应用现代新的分解技术“高压闷罐法”至少为3.5～4小时,不能满足日常生产需要。为此进行了试验: 一称取氧化铝试样0.5克数份,分别以1.8克碳酸钠和1.2～1.3克硼酸混合均匀,在860～1000℃
We for the refractory alumina material, made flux choice, ratio and melting temperature test. The literature uses two methods to decompose the sample; 2 g of alumina is melted with 2.8 g of lithium carbonate, 6.2 g of boric acid for one hour at 1000C. High pressure boring method: 1.0 g sample with 7.3 ml of hydrochloric acid (specific gravity 1.19) at a temperature of 250 ℃ for 16 hours. The literature decomposition of potassium pyrosulfate sample, we have the experiment, that the treatment of the sample a long time, even with the application of modern new decomposition technology “high pressure boring pot method ” at least 3.5 to 4 hours, can not meet the daily production needs. To this end were tested: a weighed 0.5 grams of alumina sample number of parts, respectively 1.8 grams of sodium carbonate and 1.2 to 1.3 grams of boric acid mixed at 860 ~ 1000 ℃