Determining silicon in alloys of the boron - silicon - carbon system

Conclusions We developed a method for determining the total silicon in alloys in the system boron-silicon-carbon, based on calculating the quantity of silicon by the gravimetric method with preliminary distillation of the boron with a solution of methyl alcohol saturated with hydrogen chloride.Translated from Poroshkovaya Metallurgiya, No. 2 (74), pp. 105–106, February, 1969.     

低碳和超低碳含铝系列钢硅含量的控制

采取合理控制含铝系列钢出钢碳含量、使用硅含量低的合金、改进脱氧合金化制度、规范钢包和真空室的管理、使用镁质涂料中包和规范大包换包操作等措施,杜绝含铝系列钢因硅含量出格而改判.     

微碳硅铁中碳的分析技术研究

硅铁作为冶金行业中的一种重要原料,主要作为中间合金用于铸造和合金冶炼时添加剂、脱氧剂等,随着新工艺、新技术及新材料的不断发展,对其中碳元素的要求及分析技术也越来越高.     

Durability of silicon carbide in complex stressed state

Summary A method has been evolved for experimental investigation of cermets at high temperatures in a complex stressed state.It is shown that durability of components made of the material investigated, and working in these conditions, cannot be assessed by strength criteria applicable to failure at normal temperatures.An equation was found for the limit curve of a silicon carbide cermet at 1250°K which agrees well with experimental data in the range of stressed states investigated.     

应用红外碳硫仪测定碳化硅中总碳、游离碳及碳化硅

碳化硅是一种常用的脱氧剂,在炼钢过程中主要用于脱氧以提高钢水的内在质量.碳化硅日常分析项目主要有碳化硅、游离碳及总碳,一般采用GB/T3045-89中规定的分析方法,分析过程繁琐、分析时间长,应用于生产过程中批量检验不能很好的满足要求.本文对碳化硅的分析方法进行了试验和探讨,应用红外碳硫分析仪测定碳化硅中的总碳量和碳化硅量进而计算出游离碳的量,其重现性和再现性均较好.