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1.滤清器合格的滤清器滤纸微孔间隙为0.04～0.08mm,滤纸排列有序,质硬坚挺,吸油后不变形;滤芯的中心管材料为优质钢,管上网孔大小适中,经得起油压力,不易变形。若滤纸较软,装排无序,网孔大小不一,滤纸与上下接盘接不牢,说明质量不佳。2.活塞环合格件表面精细光洁,无制造缺陷,无扭曲变形、弹性好,用钢据条的断茬划活塞环的棱角时,环的棱角
1. Filter qualified filter filter paper microporous clearance of 0.04 ~ 0.08mm, the filter paper arranged in an orderly, hard firm, no deformation after oil absorption; filter core tube material for high-quality steel, pipe mesh size is moderate, the Can afford oil pressure, not easily deformed. If the filter paper is softer, disordered row arrangement, the mesh size varies, the filter paper and the upper and lower access plate is not strong, indicating poor quality. 2. Piston ring qualified surface smooth and fine, no manufacturing defects, no distortion, good elasticity, broken steel strip according to the edge of the piston ring when the ring edges and corners