| 摘要 |
PROBLEM TO BE SOLVED: To provide a breaker plate for molding a molded body by an extrusion molding machine using a body consisting of a ceramic material, suppressing cracks in the extrusion direction of the molded body generated in drying or firing the molding body thereafter, and an extrusion molding machine using the same. SOLUTION: The breaker plate 5 has a plurality of through-holes 12 serving as a passage of the body of the extrusion molding machine 1 manufacturing the molded bodies using the body consisting of the ceramic material. Openings of the through-holes 12 disposed at the outermost sides have a shape of a long hole 12b along a contour of the molded body. Few parts of joined surfaces of the body where resin and moisture easily moving in the body easily gather are formed on the surface of the molded body corresponding to the body having passed through the long holes 12b, reducing the risk of causing density difference, and the cracks in the extrusion direction of the molded body caused on the surface of a dried body or a sintered body can be suppressed, when the molded body shrinks by elimination of the resin or moisture by the heat received in the later processes of drying and firing. COPYRIGHT: (C)2011,JPO&INPIT |
