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水基磁流体滑动轴承热弹流润滑分析 被引量:1
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作者 史修江 王优强 《轴承》 北大核心 2013年第1期32-35,共4页
利用考虑热效应的Reynolds方程,对不同载液磁流体滑动轴承进行热弹流润滑数值分析。探讨了载液和磁粉体积分数对磁流体滑动轴承弹流性能的影响。结果表明:酯基H01磁流体滑动轴承的压力峰最小,膜厚和弹流温度最大;烃基E03磁流体滑动轴承... 利用考虑热效应的Reynolds方程,对不同载液磁流体滑动轴承进行热弹流润滑数值分析。探讨了载液和磁粉体积分数对磁流体滑动轴承弹流性能的影响。结果表明:酯基H01磁流体滑动轴承的压力峰最小,膜厚和弹流温度最大;烃基E03磁流体滑动轴承的压力峰最大,膜厚和弹流温度最小;水基A01磁流体滑动轴承的压力峰、膜厚和弹流温度均在前两者之间;随着磁粉体积分数增大,水基磁流体的弹流润滑膜膜厚不断增大,压力无明显变化,弹流温度不断升高。 展开更多
关键词 水基磁流体 滑动轴承 热弹流温度 载液 fe3o4磁粉
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Synthesis of Fe_3O_4 Magnetic Powder from Spent Pickling Liquors 被引量:1
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作者 Xingyao Wang Feifei Lv 《Transactions of Tianjin University》 EI CAS 2018年第1期45-50,共6页
Spent pickling liquors pose a serious environmental problem in most industrialized countries, mainly owing to their corrosive properties and their ferrous iron and hydrochloric acid content. In this paper, spent pickl... Spent pickling liquors pose a serious environmental problem in most industrialized countries, mainly owing to their corrosive properties and their ferrous iron and hydrochloric acid content. In this paper, spent pickling liquor was used as an inexpensive raw material to prepare Fe304 magnetic powder via an oxidation method. Being able to recover the dissolved iron from spent pickling liquors would not only salvage a valuable material but also render the effluent environmentally benign. The structure of the Fe_3O_4 magnetic powder was characterized by X-ray diffraction. The morphology and size were characterized by scanning electron microscopy and transmission electron microscopy. Their magnetic properties were tested at room temperature by a vibrating sample magnetometer. In addition, the saturation magnetization of Fe_3 O_4 products can be further enhanced to 96.1 emu/g after purification. 展开更多
关键词 SPENT PICKLING LIQUoR fe3o4 magnetic powder oXIDATIoN
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