Some tips for using diamond grinding wheels
How to repair the groove of the diamond grinding wheel The diamond grinding wheel is expensive. If the groove appears in the process, it should be repaired in time to prolong the service life. However, how to repair the groove appearing on the diamond grinding wheel? Xinzheng Linfa Abrasives Co., Ltd. Tell our customers how to repair diamond grinding wheels;
Firstly grind the refurbishing tool with a grinding wheel, each time moving the overlapping surface to 1/3 to 1/2 of the width of the grinding wheel, and then feeding the knife one by one, taking 140# as an example, advanced 0.005, blunt to crisp sound, face jump to face Level, then enter 0.01 and repeat the sound, face inspection, and then proceed to 0.015, 0.02, 0.025, 0.03 until crisp, flat, no trembling, indicating rounding and sharpening. The size of the larger refining tool should be adjusted according to the grinding wheel size. The coarser the particle size, the larger the grinding amount! Note: It can be applied to the circumference of the diamond grinding wheel with oily singular pen in advance. When the ink trace disappears completely, it means that the rounding work is completed. There is a staining condition during grinding, that is, the sand can be sharpened by hand, so that the grinding wheel can resume the cutting function! 3 After the rounding with the centrifugal brake brake, it must be sharpened with white sand. 4 diamond and boron nitride grinding wheel once on the machine, unless the wear is completed, it is better not to remove.
How to improve the mechanical strength of diamond grinding wheel In order to improve the heat resistance and mechanical strength of phenolic resin bonding agent in diamond grinding wheel, in the preparation process of resin grinding tool, the purpose of modifying phenolic resin is achieved by adding various fillers. . For example, adding copper powder can improve the heat resistance of the resin; adding zinc oxide, chromium oxide and the like can improve the mechanical strength of the resin; adding soft materials such as flaky graphite and molybdenum disulfide to improve the resin bond grinding The grinding performance has a good improvement. However, an effective method for improving the performance of the phenolic resin is to add a modifier of the organic substance, which may be because the organic substance is more compatible with the phenolic resin in terms of material structure and surface properties than the inorganic substance.
Polyimide resin is a kind of resin with better heat resistance. The use of polyimide resin as binder to prepare diamond grinding wheel first appeared in the United States, and then it was promoted worldwide. Its larger feature is the grinding wheel. It has good thermal stability and can be used at 250 °C for a long time. It has much higher durability than phenolic resin bond grinding wheel and is often used for loading and grinding of superabrasive grinding wheels. Epoxy resin has good water resistance and strong adhesion, but its heat resistance is low. It is usually mixed with phenolic resin or polyimide resin during the preparation of abrasive tools without reducing the resistance of the material. On the basis of heat, the bond strength of the resin binder can be increased. Polyurethane-based resins are also low in heat resistance, but the abrasives produced by them have high strength and are generally suitable for light grinding.
More relevant diamond grinding wheel tips can be found at: http://liangzhaoming.glass.com.cn/
Bubble Fabric,Yarn Dyed Fabric,Cationic Fabric,Solid Dyed Fabric
CHANGXING YONGXIN IMPORT AND EXPORT CO.,LTD , https://www.cxyxfabric.com