Patent ID: 7351048
Filing Date: 2008-04-01
Classification: B22F,B30B

Abstract:
1. A powder press for the production of pressed articles of powder-shaped pressing material comprising: a female mould plate; at least two upper plungers; at least one hydraulic cylinder for the upper plungers; at least one position sensor for the upper plungers; a controlling means for the upper plungers; at least two bottom plungers; a separate hydraulic cylinder for each of the bottom plungers; at least one position sensor for the bottom plungers; a controlling means for the bottom plungers; and a force sensor for each of the hydraulic cylinders; wherein: the female mould plate has at least two female moulds and at least two female die bores, the at least two upper plungers co-operate with the female moulds and the female die bores, respectively, the at least two bottom plungers co-operate with the female moulds and the female die bores, respectively, and each of the separate hydraulic cylinders for the bottom plungers are capable of independent actuation from each other, and are capable of applying different magnitudes of force from each other, and apply the force at different positions and, each of the female die bores are capable of being filled with different amounts of powder.