New Results Regarding Cavitation Behavior of Polymers Modified with Anorganic Substances Coated on Bronze Surfaces
New Results Regarding Cavitation Behavior of Polymers Modified with Anorganic Substances Coated on Bronze Surfaces
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关于青铜表面涂覆的无机物质改性聚合物空化行为的新结果
DOI：
10.37358/mp.18.3.5051
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发表时间：
2018-09
影响因子：
0.8
通讯作者：
L. Micu;I. Lazăr;A. Cîrciumaru;I. Bordeasu;L. Pîrvulescu;M. Hluscu
中科院分区：
文献类型：
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作者：
L. Micu;I. Lazăr;A. Cîrciumaru;I. Bordeasu;L. Pîrvulescu;M. Hluscu
由于具有机械耐蚀、耐化学腐蚀、耐磨料侵蚀等特点，在不同流体动力条件下的设备和装置中得到了广泛的应用。在这些应用中，有保护受空化压力的流体机械器官的表面，如液压机的转子和阀门。因此，研究的目的是扩大这些部件的使用范围，并保护其他不易受空化应力的部件表面。本文研究了在船用和内河船舶螺旋桨用青铜铸件表面涂覆改性聚合物层的性能。试验在蒂米什瓦拉波利特尼察大学空化实验室的标准压电晶体振动设备上进行。对设备的破坏强度远远大于船舶螺旋桨、水轮机或离心泵产生的任何空化涡。与未覆盖聚合物层的表面和覆盖HVOF复合材料层的表面相比，所获得的结果表明，这些表面的电阻增加，这意味着这些表面的开采时间增加。
Due to mechanical resistance characteristics, chemical corrosion and abrasive erosion resistance, the polymers are more widely used in equipments and installations that are exploited in different fluid hydrodynamic conditions. Among these applications there is the protection of surfaces of hydromechanic organs stressed by cavitation, like in hydraulic machines rotors and valves. Consequently, the research aimes the extension of using these and protection of other components surfacess hardly streesed by cavitation. The research in this paper points toward the behavior of modified polymer layer, coated on surfaces of bronze used in casting the propellers of maritim and river ships. The tests were performed in standard piezoceramic crystal vibrating equipment within Cavitation Laboratory of Politehnica University of Timisoara. The damaging intensity of equipment is much greater than any cavitational vortex, created by ship propeller, hydraulic turbine or centrifugal pump. The obtained results, compared to both recorded on uncovered surfaces with polymer layer and recorded on surfaces covered with HVOF composite materials layers, show an increased resistance that implies the increased exploiting duration of those surfaces.