Immersion method of isostatic pressing graphite

The invention discloses a dipping method of isostatic pressing graphite, which is characterized in that dipping is performed after pore channel dredging is performed twice, so that a dipped product is obtained. During primary pore channel dredging, dust and gas existing in pore channels are flushed out through pressurization of deionized water, and meanwhile, the pressurized deionized water can flush away some thin obstacles in the pore channels to further dredge the pore channels; moreover, in the process of drying the deionized water, liquid water becomes water vapor and is blown out from the holes, so that residual gas and dust in the hole channels can be further cleaned; in cooperation with the negative pressure pumping-nitrogen filling-negative pressure pumping process during secondary pore channel dredging, the pore channels are further dredged, residual moisture in the primary pore channels can be removed, deionized water is used as a cleaning agent, the cost is effectively reduced, the pore channel dr