Sintering preparation of porous sound-absorbing materials from steel slag  

利用钢渣烧结制备多孔吸声材料（英文）

作　　者：孙朋[1] 郭占成[1] 

机构地区：[1]北京科技大学钢铁冶金新技术国家重点实验室,北京100083

出　　处：《Transactions of Nonferrous Metals Society of China》2015年第7期2230-2240,共11页中国有色金属学报（英文版）

基　　金：Project(2011AA06A105)supported by the National High-tech Research and Development Program of China

摘　　要：Porous sound-absorbing materials were prepared from steel slag using waste expanded polystyrene（EPS） particles as pore former.The influences of the experimental conditions such as fly ash content,sintering temperature,sintering time,and pore former addition on the performance of the porous sound-absorbing materials were investigated.The results show that the porosity of the specimens can reach above 50.0%;the compressive strength and average sound-adsorption coefficient of the sintered specimens are above 3.0 MPa and 0.47,respectively.The optimum preparation conditions for the steel slag porous sound-absorbing materials are as follows：mass fraction of fly ash 50%,waste EPS particles 3.6 g,sintering temperature 1100℃,and sintering time 7.5h,which are determined by considering the properties of the sound-absorbing materials,energy consumption and cost.以废聚苯乙烯颗粒为造孔剂制备钢渣多孔吸声材料,研究粉煤灰添加量、烧结温度、烧结时间和造孔剂掺加量对钢渣多孔材料性能的影响。实验结果显示,该方法制备的多孔吸声材料的显气孔率达到50.0%以上;材料抗压强度和平均吸声系数分别达到3.0 MPa和0.47以上。综合考虑材料性能、能源消耗和生产成本,较优的制备条件如下:粉煤灰添加量50%、废聚苯乙烯颗粒质量3.6g、烧结温度1100℃和烧结时间7.5h。

关 键 词：steel slag porous sound-absorbing material noise reduction coefficient POROSITY compressive strength 

分 类 号：TB34[一般工业技术—材料科学与工程]