Alumina ceramic integrated hot press molding machine and working method thereof

An alumina ceramic integrated hot press molding machine, comprising a pressing device and a hot pressing device which are fixed on a rack, wherein the hot pressing device is located below the pressing device, a stirring device is disposed inside the hot pressing device, and a hot pressing mold is disposed above the hot pressing device;

• the pressing device enables one path of high-pressure air to act on the hot pressing mold, and enables another path of high-pressure air to enter the hot pressing device, so that a slurry flows into a cavity of the hot pressing mold;
• wherein the pressing device comprises threaded connecting rods on both sides of a lifting frame, a piston pressing rod and a return spring disposed in a lifting frame pressing rod stroke cavity, and a flange surface end cover disposed on a lug boss of the lifting frame, the lifting frame is fixed on the threaded connecting rods, a high-pressure air pipe is connected with the flange surface end cover, and high-pressure air is divided into two paths through an air valve and flows out at the same time, wherein one path of air flows to the piston pressing rod stroke cavity on the lifting frame through the high-pressure air pipe, so as to push the piston pressing rod to tightly press the hot pressing mold;
• the stirring device is configured to stir the slurry inside the hot pressing device, so that alumina blanks are more evenly distributed in the slurry;
• temperature detection components for detecting a temperature of internal oil and a temperature of the slurry at a slurry outlet are respectively disposed inside the hot pressing device, and power of an electric heating device is adjusted and controlled in real time according to the temperatures detected by the temperature detection components, so as to achieve a purpose of accurate temperature control;
• and
• the electric heating device and a thermocouple are disposed above a grouting pipe near a position where the slurry outlet is formed, so as to accurately control the temperature of the slurry at the slurry outlet.