Heating appliance covered with a self-cleaning coating and production method thereof

A technology for self-cleaning coatings and household appliances, applied in heating methods, coatings, household stoves, etc., can solve the problems of increased coating costs and heating household appliances, and achieve excellent adhesion and excellent catalytic activity Effect

Active Publication Date: 2013-08-07
SEB SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, said self-cleaning coatings exhibit the disadvantage that large amounts of platinum group metal oxides are required in the outer layer to properly achieve a satisfactory level of catalytic activity, the consequences of which are in particular a significant increase in the cost of the coating and thus ultimately lead to heating The cost of household appliances has increased significantly

Method used

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  • Heating appliance covered with a self-cleaning coating and production method thereof
  • Heating appliance covered with a self-cleaning coating and production method thereof
  • Heating appliance covered with a self-cleaning coating and production method thereof

Examples

Experimental program
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Effect test

example 1

[0132] PdO / CeO on enamel media according to the invention 2 First example of double coating

[0133] The clean soleplate of the iron is made of enamelled aluminium, resting on a thick medium made of aluminum and used as a heat source to limit temperature variations as much as possible.

[0134] The assembly is heated to 300°C in an oven. The base plate, together with the medium, is placed under infrared radiation for a few seconds until the surface temperature reaches between 300°C and 350°C.

[0135] Dissolve cerium nitrate in water. The aqueous cerium nitrate solution was then sprayed onto the base plate using an air gun. Next, a layer is deposited having a thickness of approximately 50 nm to 100 nm measured according to the RBS method described above.

[0136] After applying the inner layer, the soleplate is heated in an oven to 250°C and then placed under infrared radiation for a few seconds at a temperature between 280°C and 350°C.

[0137]Spray the nitric acid-stabi...

example 2

[0144] PdO / Y on enamel media according to the invention 2 o 3 Second example of double coating

[0145] The clean soleplate of the iron is made of enamelled aluminium, resting on a thick medium made of aluminum and used as a heat source to limit temperature variations as much as possible. The assembly is heated to 300°C in an oven. The base plate, together with the medium, is placed under infrared radiation for a few seconds until the surface temperature reaches between 300°C and 350°C.

[0146] Yttrium nitrate is dissolved in water. The aqueous yttrium nitrate solution was then sprayed onto the base plate using an air gun. Next, a layer is deposited having a thickness of approximately 50 nm to 100 nm measured according to the RBS method described above.

[0147] After applying the inner layer, the soleplate is heated in an oven to 250°C and then placed under infrared radiation for a few seconds at a temperature between 280°C and 350°C.

[0148] Spray the nitric acid-sta...

example 3

[0155] (PdO+Y on the enamel medium according to the invention 2 o 3 ) Example of a single layer coating

[0156] The clean soleplate of the iron is made of enamelled aluminium, resting on a thick medium made of aluminum and used as a heat source to limit temperature variations as much as possible.

[0157] The assembly is heated to 250°C in an oven. The base plate, together with the medium, is placed under infrared radiation for a few seconds until the surface temperature reaches between 280°C and 350°C.

[0158] Yttrium nitrate was added as a dopant to a hydrated palladium nitrate solution stabilized with nitric acid and sprayed onto the substrate using an air gun. A layer is then deposited having a thickness measuring approximately 50 nm to 100 nm according to the RBS method described above.

[0159] After applying the outer layers, the assembly was rebaked at 500° C. for four minutes under infrared radiation.

[0160] An iron soleplate is obtained, the self-cleaning co...

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Abstract

A heating appliance including a metal substrate, at least a part of which is covered with a self-cleaning coating including at least one oxidation catalyst selected from the platinoid oxides, and at least one dopant of said oxidation catalyst selected from the rare-earth oxides. The self-cleaning coating is a bilayer coating including: an inner layer at least partially covering the metal substrate and including the dopant; and an outer layer in contact with the ambient air and including the oxidation catalyst. Also provided is a method for producing such a heating appliance.

Description

technical field [0001] The present invention relates generally to heating appliances or appliances intended to be heated in use, including self-cleaning coatings. Background technique [0002] The term "heating household appliance" is understood to mean any household appliance, article or appliance within the meaning of this patent application, which, during its operation, reaches a temperature at least equal to 65°C (which is the minimum reheating temperature), And preferably to a temperature at least equal to 90°C. The household appliance is able to reach its operating temperature by special means, for example, by means of a heating base integrated into the appliance and equipped with heating elements, or by external means. It relates in particular to soleplates of irons, cooking appliances, ovens, grills and cooking appliances. In these heating appliances, such as some iron soleplates or cooking utensils, the ease of use and efficiency exhibited depends inter alia on th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06F75/38F24C15/00C23C18/12
CPCC23C18/1258F24C15/005D06F75/24D06F75/38F27D5/0006C23C18/1291C23C18/1295C23C18/1225C23C18/1216
Inventor 丹尼斯·芭枸
Owner SEB SA
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