US 7,758,790 B2 · Method and device for producing corrugated sheet material

Abstract

A method of stably producing a ceramic sheet with good quality, where the tip portions of convex parts constituting numerous wrinkles on the surface of the ceramic sheet are not in contact with each other, and concave parts are open. To produce the ceramic sheet, clay is placed on the upper surface of a stretched rubber sheet, and the upper surface of the clay is covered by a surface layer made from a material that burns when the clay is baked. The rubber sheet is contracted to form wrinkles on the upper surface of the clay and the surface layer. The clay is baked and the surface layer is made to disappear by burning to obtain the ceramic sheet. Thus, the surface layer prevents the tips of the convex parts constituting the wrinkles from being in direct contact with each other.

Claims14

Dependent claims

A manufacturing method for a corrugated sheet material, the method comprising:

(a) placing a first material on a top surface of a stretched-out elastic supporting film;
the first material comprising a raw material hardenable into the corrugated sheet material
(b) covering a top surface of the first material with a surface layer comprising a second material, the second material comprising a deformable material;
(c) contracting the supporting film to wrinkle the top surface of the first material and the surface layer;
and
(d) then hardening the first material into the corrugated sheet material, and
(e) removing the second material from the first material to expose the corrugated sheet material having numerous wrinkles on at least a top surface the corrugated sheet material.

4 more elements

Dependencies are inferred from the claim text.

Method and device for producing corrugated sheet material

Life of this patent

Method and device for producing corrugated sheet material

Life of this patent

Abstract

Claims14