| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for producing a powder laminate where a powder is uniformly laminated by one or more layers to the thickness direction; to provide a method for producing a sintered compact having a reduced deformation volume and high working precision without depending on the thickness of the sintered compact by subjecting the powder laminate to compacting and sintering; and to provide a system of producing a sintered compact where a sintered compact such as a metal base of a cutting blade and a cutting blade having high working precision is continuously sintered. <P>SOLUTION: Raw material powders and a solvent are measured, they are mixed and stirred in a mixing-stirring tank installed directly above an injection nozzle, so as to produce a slurry. Thereafter, the slurry is injected from the injection nozzle toward a target into the inside space of a cylindrical cover. After the injection of the slurry, heating is performed in the middle of a process, and forced to dry. Based on the measured result of the thickness in the powder laminate which is laminated after powdering before its arrival, a lamination is formed on the target moving in accordance with the fed-back lamination pattern, so as to produce a powder laminate having a prescribed thickness. The obtained powder laminate is subjected to a high efficiency pressurizing-electric heating sintering process, so as to produce a sintered compact. <P>COPYRIGHT: (C)2007,JPO&INPIT |
