| 摘要 |
PURPOSE:To provide a nozzle which enables extrusion molding of a porous plate such as ceramic porous plate by cutting a lattice-shaped grooves on the undersurface of a nozzle plate while introduction holes are bored on the top thereof communicating with straight portions of the lattice-shaped grooves except for intersections to ensure an even and undeviated flow of an extrusion material to the lattice-shaped grooves. CONSTITUTION:Lattice-shaped grooves 1 are cut on the undersurface of a nozzle plate 3' and introduction holes 2 are bored on the top thereof communicating with straight portions 1b of the lattice-shaped grooves 1 except for intersections 1a. Then, the sectional area (m) of the introduction holes 2 is made larger than the sectional area (n) of the lattice-shaped grooves 1 involved in the introduction holes 2. |
