铸造水玻璃砂粘结性能研究新方法  

A New Method for the Investigation of Binding Properties of Silicate-sand

作　　者：肖波[1] 徐正达[1] 王秀萍[1] 曹伟[1] 张洪海[1] 黄乃瑜[1] 

机构地区：[1]华中理工大学,华中理工大学材料系

出　　处：《湖北工业大学学报》1995年第S1期6-9,14,共5页Journal of Hubei University of Technology

摘　　要：用高新纳米测试技术──多功能模块式扫描探针显微镜（ＳＰＭ）成功地测定出了微波硬化水玻璃膜和ＣＯ２硬化水玻璃膜的纳米微观形貌和胶粒大小．同时，还用透射电镜研究了微波硬化水玻璃和ＣＯ２硬化水玻璃胶粒尺寸，补充和证明了多功能模块式扫描探针显微镜的测试结果．纳米微观形貌的图象显示：微波硬化的水玻璃表面光滑，胶粒细小，胶粒排列密集；而ＣＯ２硬化的水玻璃表面粗糙，胶粒租大，胶粒排列松散．从而揭示了微波硬化水玻璃砂强度高的原因，为铸造粘结剂材料性能的研究开拓了新方法．In this paper, The nanometer-appearance and the particle size of the sodium silicate gels cured by microwave energy and by CO2 process are measured by Scanning Probe Microscope (SPM ). The pictures of nanometer-appearance show that, The microwave cured sodium silicate has much smoother surface, Smaller particle size and more compact of distribution of the particles thanthat of CO2 gassing process. This is the reason why the microwave cured sodium silicate-sand has very high core strength. In this investigation a new research method for the properties of foundry binders has been developed.

关 键 词：水玻璃砂 粘结强度 微波硬化 纳米微观分析 

分 类 号：TQ177.4[化学工程—硅酸盐工业]