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海冰与不锈钢材料冻黏特性的实验研究
谭 蔚1, 高晓冲1, 于真真1, 杨小刚1
天津大学, 天津市膜科学与海水淡化技术重点实验室
摘要:
利用自行设计制作的实验夹具, 在拉伸试验机上进行试验, 着重研究了温度及材料结构形态对海冰与不锈钢材料之间冻黏强度的影响规律。结果为: 由于表面卤水的存在, 海冰冻黏强度低于淡水冰冻黏强度, 海冰与不锈钢材料的冻黏强度随冻黏温度降低而增大; 且材料的结构形态对冻黏强度有着显著影响, 柔性介质可有效防止冻黏。研究结果为海冰离心分离设备的工业化设计及工艺操作条件的优化提供了可靠依据。
关键词:  海冰  冻黏  强度
DOI：
分类号:
基金项目:“十一五”国家科技支撑计划课题(2006BAB03A03)
Freezing adhesive characteristics between stainless steel and sea ice
Abstract:
Adhesion of sea ice to material surface is a major factor that impacts centrifugation of sea ice. We measured thefreezing adhesive strength between sea ice and stainless steel at different temperatures with lab-made fixtures and rally testing machine. We found that the existence of brine in the surface of sea ice reduced the strength of the freezing adhesive and, with the increase of temperature, the strength of the freezing adhesive between sea ice and stainless steel material decreased. In addition, the structure of the material affected the freezing adhesive. The results provide a reliable basis to design sea ice centrifuge equipment and optimize operation conditions.
Key words:  sea ice  freezing adhesive  strength
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