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MainApplicationFieldsofGoldandCurrentStatus
ofDevelopment
Li Yin'e, Jiang Ting, Ma Guang, Jia Zhihua, Zheng Jing(Northwest Institute for Nonferrous Metal Research，Xian 710016，China
Abstract: The main application fields of gold and its alloy are reviewed, which are respectively jewelrys, brazing filler metals, elec-trical contact materials, electronic industries, dentals, medicines, high-tech products and so on. Research and development status
of gold in these application field are also presented. Keywords: gold; application; present situation
Biography: Li Yin'e, Senior Engineer, Northwest Institute for Nonferrous Metal Research, Xi'an 710016, P.R. China,
Tel: 00862986224473,Email:emc@cnin.com 专利信息（I）
专利名称：铝锆铬质耐火球专利申请号：200810300324.1 公开号：CN101219905
申请日：2008-02-02 公开日：2008-0716
专利申请人：柳州钢铁股份有限公司
一种铝结铬质耐火球的制备方法。其特点是耐火球组分质量分数)包括：高铝矾土熟料65%~85%，错英石 5%~15%，含Cr,0,物料0.5%~6%，锆刚玉0%~10%，α Al,0，微粉0%~10%，粘土3%~8%，粘结剂2%~5%。耐火球成品含Al,0,75%~85%，Zr0,3%~9%，Cr;0,0.3%~
3%，其余为原料中所含SiO，及其它物质。优点是：体积密度高，热容量大；体积密度≥2.85g/cm，显气孔率≤ 20%，可使进高炉热风温度达到1150℃：强度高，抗热震性能好；耐压强度≥30kN/球，抗热震性（1100℃，水冷)≥7次；在使用过程中不粉化破损，满足所有高炉球式热风炉的技术要求，特别适用于高炉球式热风炉的中温段和低温段；抗化学侵蚀性强，荷重软化温度高；荷重（100N/球)软化温度≥1550℃；使用过程相互不粘连、不变形；寿命长，可与炉龄同步，并可以重复使用。