Abstract
Extrusion grinding machining (EGM) has become a key technology in the post-processing of micro-hole in the injector nozzle. In this paper, the pure slurry prepared from organic bentonite and the pure slurry after adding abrasive as experimental objectives, and the correlation performance has been carried out. Results showed that both pure slurry and slurry abrasive have good shear thinning characteristics, belong to pseudoplastic non-Newtonian fluid, and their rheological properties obey the power-law model. The pure slurry after stirring and shearing can restore the reticular structure in a short time, which proves that it has excellent thixotropy and meets the conditions of circulating processing of grinding fluid. In addition, the pure slurry and slurry abrasive also have good sedimentation stability, suspension capacity, and dispersion properties.
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