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

Patent metadata

Field	Value
Publication number	US-10080430-B2
Application number	US-201113992782-A
Country	US
Kind code	B2
Filing date	Dec 14, 2011
Priority date	Dec 21, 2010
Publication date	Sep 25, 2018
Grant date	Sep 25, 2018

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.

First claim

The invention claimed is:

1. A method for producing a domestic appliance plate comprising:
a) providing a starting mixture of components comprising magnesium silicate hydrate, kaolinite, calcined kaolinite, and pure aluminum oxide;
b) forming a green sheet from the starting mixture; and
c) sintering the green sheet at an elevated temperature such that at least two of the components are joined together by heat.

2. The method of claim 1 , further comprising adding ball clay to the starting mixture to increase plasticity.

3. The method of claim 1 , further comprising adding high-purity synthetic cordierite to the starting mixture.

4. The method of claim 1 , further comprising adding to the starting mixture at least one member selected from the group consisting of fireclay cordierite, aluminum titanate, and coloring agents.

5. The method of claim 1 , wherein prior to step b), kneading the starting mixture into a homogeneous paste.

6. The method of claim 5 , wherein step b) comprises extruding the homogeneous paste into the green sheet.

7. The method of claim 1 , wherein the elevated temperature ranges from 1200° C. to 1400° C.

8. The method of claim 1 , wherein the components are present in an amount of at least 50 wt. % based on the total weight of the starting mixture.

9. The method of claim 5 , wherein the components are present in an amount of at least 50 wt. % based on the total weight of the homogenous paste.

10. A method for producing a domestic appliance plate comprising:
providing a starting mixture of components comprising magnesium silicate hydrate, kaolinite, calcined kaolinite, pure aluminum oxide, and cordierite;
sintering the mixture of components at a sintering temperature that is above the melt temperature of the cordierite.

11. The method of claim 10 , wherein the starting mixture is a homogenous paste.

12. The method of claim 11 , wherein the components are present in an amount of at least 50 wt. % based on the total weight of the homogenous paste.

13. The method of claim 10 , wherein the sintering temperature ranges from about 1200° C. to 1400° C.

Assignees

• Bunuel Magdalena Miguel Angel
• Caballero Lopez Miguel Angel
• Ejarque Esteve Sara
• Ester Sola Francisco Javier
• Fernandez Lozano Jose Francisco
• Ferrando Molinos Fidel
• Garcia Jimenez Jose Ramon
• Damaso Martin Gomez
• Planas Layunta Fernando
• Bsh Hausgeraete Gmbh
• Bsh Home Appliances Corp

Inventors

• Buñuel Magdalena Miguel Angel
• Caballero López Miguel Angel
• Ejarque Esteve Sara
• Ester Sola Francisco Javier
• Fernandez Lozano Jose Francisco
• Ferrando Molinos Fidel
• Garcia Jimenez Jose Ramon
• Martin Gomez Damaso
• Planas Layunta Fernando

Classifications

• C04B35/195 Primary

  Alkaline earth aluminosilicates, e.g. cordierite {or anorthite} · CPC title

• A47B77/08 Primary

  for incorporating apparatus operated by power, including water power; for incorporating apparatus for cooking, cooling, or laundry purposes · CPC title

• C04B2235/3463

  Alumino-silicates other than clay, e.g. mullite · CPC title

• C04B2235/5436

  micrometer sized, i.e. from 1 to 100 micron · CPC title

• C04B2235/3418

  Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint · CPC title