含硼改性剂对铸造用铝磷酸盐无机粘结剂热硬砂性能的影响  

Effect of Boron-contaning Modifier on the Properties of Heat-cured Aluminum Phosphate Inorganic Binder-bonded Sand

作　　者：夏露[1] 张友寿[1] 黄晋[1] 

机构地区：[1]湖北工业大学机械工程学院,湖北武汉430068

出　　处：《铸造技术》2007年第11期1428-1430,共3页Foundry Technology

基　　金：湖北省教育厅资助项目(B200514004);湖北省科技厅资助项目(2005ABA056)

摘　　要：研究了含硼改性剂对铝磷酸盐粘结剂理化性能及热硬砂性能的影响。结果表明:含硼改性剂可有效提高铝磷酸盐热硬砂型(芯)的干强度和较低湿度下的抗吸湿性;随含硼改性剂的增加,粘结剂的密度、粘度增大,稳定性下降。The effect of boron-containing modifier on the properties of aluminum phosphate binder and heat-curing sand mold are studied. It is revealed that the compressive strength and the humidity resistance of aluminum phosphate heat-curing sand molds in low humid air are improved by adding the boron-containing modifier into the binder. The density and viscosity increase and the stability decrease with the increasing the boron-containing modifier.

关 键 词：铝磷酸盐粘结剂 热硬化 含硼改性剂 粘度 抗吸湿性 

分 类 号：TG223[金属学及工艺—铸造]