Square super-long special ceramic rod forming die

The utility model relates to a square super-long special ceramic rod forming die which adopts an isostatic pressing forming mode to form a ceramic rod, a square-barrel-shaped silicon rubber case and a square-barrel-shaped die shell which are arranged in the die are used for forming the square super-long ceramic rod, the square-barrel-shaped silicon rubber case is sleeved with the square-barrel-shaped die shell after being filled with ceramic powder, and the square-barrel-shaped silicon rubber case is sleeved with the square-barrel-shaped die shell. During isostatic pressing forming, isostatic pressing liquid exerts pressure on the side face of the square-barrel-shaped silica gel sleeve from the pressure equalizing holes of the square-barrel-shaped mold shell and exerts pressure on the two ends of the square-barrel-shaped silica gel sleeve through the high-elastic plugging sleeve, and therefore the periphery of ceramic powder can be evenly pressed, and serious density difference is avoided. The ceramic rod is