The invention discloses a preparation method of a far-
infrared ceramic liner for an electric rice
cooker. According to the preparation process, a low-expansion
spodumene-based
ceramic liner body is firstly prepared, wherein the
ceramic liner meets rapid cooling and rapid heating in the range of 500 DEG C-20 DEG C, and the water
absorption rate is less than 0.5%. The preparation process of the ceramic liner body comprises the steps of mixing and ball-milling; mud squeezing; mud stirring; rolling and forming;
drying; trimming; and firing, then
glaze firing with a low-expansion inner
glaze, and
coating with an ordinary
coating outside to obtain the ceramic liner. The far-
infrared ceramic liner for the electric rice
cooker, prepared according to the preparation method disclosed by the invention, can be widely used for replacing aluminum liners of the electric rice cookers; the ceramic liner has the advantages that the surface which is in contact with foods is environment-friendly and durable, and the ceramic liner has a far-
infrared radiation function after being heated; when the ceramic liner is used for cooking rice and other foods, a certain through
heating effect is realized, so that the heating of the rice is uniform and thorough, and the rice has relatively good shape, taste and fragrance.