Method for producing a domestic appliance plate and domestic appliance device having a domestic appliance plate

Abstract

A method for producing a domestic appliance plate from a starting mixture. In order to provide a domestic appliance plate having a high resistance to thermal shock, good thermal insulation, and advantageous mechanical properties, at least magnesium silicate hydrate, kaolinite, calcined kaolinite, and aluminum oxide are used for the starting mixture.

What is claimed is: 
     
         1 . A domestic appliance device, comprising a domestic appliance plate made from a starting mixture comprising at least magnesium silicate hydrate, kaolinite, calcined kaolinite and pure aluminum oxide. 
     
     
         2 . The domestic appliance device of  claim 1 , wherein the domestic appliance plate is a hob plate. 
     
     
         3 . The domestic appliance device of  claim 1 , wherein the domestic appliance plate has a mass fraction of 12% to 16% magnesium oxide, 30% to 35% aluminum oxide and 52% to 57% silicon dioxide. 
     
     
         4 . The domestic appliance device of  claim 1 , wherein a substantial part of the domestic appliance plate comprises a cordierite crystal phase. 
     
     
         5 . The domestic appliance device of  claim 1 , wherein the domestic appliance plate has a density between 1.8 g/cm 3  and 2.4 g/cm 3 . 
     
     
         6 . The domestic appliance device of  claim 1 , wherein the domestic appliance plate has a thermal shock resistance of at least 300 K. 
     
     
         7 . The domestic appliance device of  claim 1 , further comprising a protective layer, surrounding the domestic appliance plate at least partially. 
     
     
         8 . The domestic appliance device of  claim 1 , wherein the starting mixture includes ball clay to increase plasticity. 
     
     
         9 . The domestic appliance device of  claim 1 , wherein the starting mixture includes high-purity synthetic cordierite. 
     
     
         10 . The domestic appliance device of  claim 1 , wherein the starting mixture includes at least one member selected from the group consisting of fireclay cordierite, aluminum titanate, and coloring agents. 
     
     
         11 . The domestic appliance device of  claim 1 , wherein the starting mixture is kneaded to a homogeneous paste. 
     
     
         12 . The domestic appliance device of  claim 11 , wherein the homogeneous paste is extruded to form a green sheet. 
     
     
         13 . The domestic appliance device of  claim 12 , wherein the green sheet includes components joined by a sintering process.