| 摘要 |
PURPOSE:To enable the honeycomb molding die being complicated in its construction to be produced efficiently by burning the molding made in such a manner that a ceramic material powder is molded and a number of regularly arranged bottomed holes are opened on the mold as well as a number of slits communicating to the bottomed holes are formed on the opposite side surface of the hole opened surface. CONSTITUTION:The molding 1 is contained with, e.g., 1wt.% of polyvinyl alcohol binder to 3mol% Y2O3.97mol% ZrO2. The holes 4 are opened by drill-work in a staggered form to the disc-shaped molding 1 after the compression powder molding and a number of slits 5 are formed in intersecting at right angles on the lines connecting each center of the holes 4 at the surface 3 opposite to the hole opened surface of the die. Next, the obtained molding is raised in the temperature by 10 deg.C per hour from the room temperature and held for two hours at the point of reached 800 deg.C, afterwards, raised in the temperature by 100 deg.C per hour and held for two hours at the point reached 1,500 deg.C, after that, lowered the temperature by 100 deg.C per hour and cooled. |
