【摘要】 搭建了高温气冷堆燃料装卸系统提升段石墨球磨损性能研究的实验平台,研究了10 MW高温气冷堆(HTR-10)堆用石墨球在氮气气体输送条件下与不锈钢提升管的摩擦磨损性能,重点考察了石墨球输送速度对其磨损率的影响。结果表明:石墨球在不锈钢提升管中的磨损与石墨球的输送速度存在明显的线性关系,速度越高磨损率越大;石墨球的磨损属磨粒磨损,磨损以硬质不锈钢表面粗糙峰对石墨材料的切削作用为主,磨损率较大。更多还原

【Abstract】 Experimental platform for the research of graphite ball wear behavior under elevating process with HTGR fuel handing system was built.In the experimental platform a series of experiments on the wear behavior of graphite ball made by 10 MW High-temperature Gas-cooled Reactor(HTR-10) fuel element matrix graphite material(A3) were carried out under the conditions of nitrogen pneumatic conveying.The effect of feeding velocity on the wear rate of graphite ball was focused on.The results show that there is an obvious linear relationship between the wear rate and the feeding velocity of graphite ball elevated in the stainless steel fed tube,and the wear rate increases with the feeding velocity.The wear of graphite ball is abrasive wear under the experimental conditions,and the wear mainly is caused by the cutting action of peaks of hard stainless steel surface roughness to the graphite materials.更多还原