0660D010BN3HC测试新装贺德克液压滤芯初期的过滤能力

康美测试新装贺德克液压滤芯初期的过滤能力 由于名义过滤精度不能真实地反映滤芯的过滤能力，因此，常以在规定的试验条件下过滤器可以通过的Zui大硬质球形颗粒的直径作为其过滤精度，用以直接反映新装滤芯初期的过滤能力。  

评定液压油滤芯的Zui主要准则是按ISO4527-1981E（多通试验）测定的β值，即让混入标准试验粉末的油多次循环通过滤油器，其进油口和出油口两侧的粒子数之比。  

流量特性  

滤芯通过油液的流量与压力降是流量特性的重要参数，应按ISO3968—91标准进行流量特性试验，以绘制流量-压力降特性曲线图。在额定供油压力下，总压降（滤壳压降与滤芯压降之和）一般应在0.2MPa以下。  

液压油滤芯  （1）过滤精度  首先，根据液压系统的需要确定用渍的清洁度等级，再根据此清洁度等级按符表选择滤油器的过滤精度。工程机械上Zui常用的液压油滤芯名义过滤清度为10μm。  

液压油清洁度（ISO4406）  滤芯的名义过滤精度（μm）  应用范围  13/10  3  液压伺服阀  16/13  5  液压比例阀  18/15  10  一般液压元件(大于10MPa)  19/16  20  一般液压元件(小于10MPa)  0660D003V-V 
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