新能源汽车的快速兴起带动了锂电池的发展，锂电池负极材料的设国产一般需要用到石墨坩埚产品，这就让石墨坩埚生产设备的需求量开始增加。山东众友设计生产了一款石墨坩埚成型液压机，三梁四柱式结构，采用粉末成型工艺，配合模具可以加工各种规格直径的石墨坩埚。
According to the material, specification, diameter and density of graphite crucible, Shandong Zhongyou can customize 1000 tons, 1500 tons, 2000 tons, 2500 tons, 3000 tons and other different tonnages of graphite crucible forming hydraulic press. Compared with the traditional production process, it has the advantages of simple process, short production cycle, high yield and efficiency, low labor intensity, less molding moisture, low crucible shrinkage and porosity, and high product density.
直径200-400mm的石墨坩埚一般使用315吨、400吨、630吨液压机加工，直径500-800mm则采用1250吨、1500吨、2000吨液压机加工，直径大于800mm使用2000吨、3000吨液压机进行加工。
Among so many graphite crucible forming hydraulic presses of different tonnage, the high purchase rate is 2000 tons, which can press ordinary graphite crucibles with a diameter of about 500-600mm, and large-diameter graphite crucibles with a diameter of less than 1000mm. It can not only press cylindrical crucibles such as graphite crucibles, clay crucibles, silicon carbide crucibles, but also press ten-hole plum blossom crucibles for one-time molding.
Graphite crucible molding is to place the graphite crucible mixture into the mold and start the graphite crucible molding hydraulic press. When the slider decelerates for a certain distance and approaches the workpiece, the pressure in the upper cavity of the master cylinder will be determined by the pressing load. The pressure in the upper cavity of the master cylinder will continuously increase, and the output flow of the variable pump will automatically decrease accordingly. When the pressure in the upper chamber of the master cylinder reaches the set pressure of the pilot relief valve, the output flow of the pump is all over the valve, and the slider will stop moving at this time. The main cylinder can complete the basic working cycle of rapid downward movement, deceleration pressing, pressure holding delay, pressure relief return and stop (any position), and complete the molding production of graphite crucible.