基体孔隙率对汽车腻子打磨用网格砂默许磨削性能的影响规律  

Effect of back porosity on net abrasives for grinding car putty

作　　者：翟建昌 孟霞 傅桂华 ZHAI Jianchang;MENG Xia;FU Guihua(Zibo Riken MT Coated Abrasives Co. , Ltd. , Zibo 255086, Shandong, China)

机构地区：[1]淄博理研泰山涂附磨具有限公司,山东淄博255086

出　　处：《金刚石与磨料磨具工程》2020年第4期65-69,共5页Diamond & Abrasives Engineering

摘　　要：网格砂基体孔洞的数量会影响有效磨削面积,从而影响网格砂的磨削性能。以不同孔隙率的聚酯网格布为基体,经过预处理、底胶、植砂、复胶工序制备网格砂。通过打磨汽车腻子,观察在磨削过程中网格砂磨削面的堵塞情况,并测试其磨削面的粗糙度,探讨基布的孔隙率对网格砂磨削性能的影响。结果表明:粗粒度磨削优选孔隙率为30%的网格基体,细粒度磨削优选孔隙率为20%的网格基体。The number of holes in the net sand affects the effective grinding area,which affects the grinding performance of net sand.Polyester mesh cloth with different porosities was used as the backing of net sand,which was produced into net product after pre-treatment,the first layer resin,electrostatic coating,and the second layer resin.We study the influence of net backing cloth porosities in sanding car putty by observing clogging status during sanding,testing roughness of surface,and charaterizing the clogging condition of grid grinding surface through scanning electron microscope.The results show that for coarse grit sanding,the best porosity is 30%,and for the fine grit,the best porosity is 20%.

关 键 词：涂附磨具 网格布 孔隙率 网格砂 汽车腻子 

分 类 号：TG74[金属学及工艺—刀具与模具]