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Thin liquid flow grinding

Compared with the extrusion grinding method, v this is a kind of lower viscosity, almost to the ink state of a medium, with a certain flow rate through the jet hole, to achieve the purpose of grinding holes, deburring and hole chamfering. This is a device developed by DYNETICS. The medium of this processing method is a low viscosity naphthenic mineral oil, and a certain amount of additives to change the flow, and then add 400 to 1200 particle size of emery. The medium must have sufficient viscosity to maintain a uniform and consistent distribution of abrasive particles at low shear rates. At high shear rates, when entering the orifice, the viscosity must be reduced to allow it to flow through the orifice at high speeds, similar to the flow of diesel oil. The pressure range in the process is 0.35 ~? OMpa: 2.8MPa is commonly used. Medium temperature 25 0.2℃. Because of the low viscosity and low wear of the medium, the flow meter can be directly used in the medium channel to accurately detect the flow rate of the workpiece in real time, so it is easier to achieve strict flow control than the extrusion grinding process.