PAN MADE FROM POTTERY FOR ELECTROMAGNETIC COOKER, AND ITS MANUFACTURING METHOD

PROBLEM TO BE SOLVED: To make a pan made from pottery for an electromagnetic cooker have a structure, which has sufficient strength thermally and mechanically. SOLUTION: A central projection 4-1, a middle ring-like projection 7, and a circumference ring projection 3-1 are made to the external bottom 2 of the pan, and notches for stopping missing of a filler agent is attached to the root of each projection. A thin ring-like metal plate is stuck on the bottom of the pan between each projection. An weak adhesive is applied to their surfaces, a filler agent 22 of the quality of the same material system of the pan is filled up on it, and it is burned after further, applying a glaze 24 on it. Baking gasifies the adhesive, and some crevices are made between the metal plate and the wall of the side of the filler agent projections. The power generated by expansion and contraction of the metal plate becomes not to be applied to the circumference, by these crevices.