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不研磨法更换气门及气门座
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作者 丛丽娟 韩淑艳 《农机使用与维修》 2003年第4期21-21,共1页
气门及气门座是发动机中极易磨损的零件,对发动机性能影响较大.气门及气门座磨损后,大多采用更换新件的方法.
关键词 发动机 不研磨 更换技术 气门 气门座
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辛伐他汀片的含量测定中研磨对含量结果的影响 被引量:1
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作者 韩后良 王依健 秦丽丽 《医学信息(医学与计算机应用)》 2014年第8期449-449,共1页
目的:探究辛伐他汀片的含量测定中研磨对含量结果的影响。方法高效液相色谱法。结果在辛伐他汀片含量中,研磨与不研磨所得含量结果的相对偏差会差3%~5%。结论辛伐他汀片在含量测定过程中,取20片研磨称取测定含量的结果与不研磨而是直接... 目的:探究辛伐他汀片的含量测定中研磨对含量结果的影响。方法高效液相色谱法。结果在辛伐他汀片含量中,研磨与不研磨所得含量结果的相对偏差会差3%~5%。结论辛伐他汀片在含量测定过程中,取20片研磨称取测定含量的结果与不研磨而是直接称取测定含量的结果比较时,研磨的结果偏低。 展开更多
关键词 高效液相色谱法 辛伐他汀片 含量 研磨 不研磨
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Steel Valve Plate Grinding
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作者 Dij ana Nadarevic Mirko Sokovic 《Journal of Mechanics Engineering and Automation》 2013年第4期251-256,共6页
In the optimization of the process of steel valve plate grinding, it is necessary to take into consideration different processing parameters. This paper is going to describe the production of a steel valve plate with ... In the optimization of the process of steel valve plate grinding, it is necessary to take into consideration different processing parameters. This paper is going to describe the production of a steel valve plate with the focus on flat-grinding. It is also going to present the method of choosing grinding wheels and parameters, as well as their impact on the processing quality parameters (roughness, surface flatness and seat width). The optimization of the grinding process ensures acceptable quality of the final product applying the smallest possible changes in parameters at non-uniform quality levels of the tools. Here we have to make sure that the machining process is acceptable in terms of processing cost as weIl. We are going to use the G-factor as the efficiency indicator for different tools. 展开更多
关键词 Valve plates flat-grinding G-FACTOR
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