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Magnetic-conductive composition, electromagnetic heating cooker, preparation method of electromagnetic heating cooker and cooking device

A coating composition and composition technology, applied in the field of cooking equipment and magnetically conductive coating composition, can solve problems such as complex process, high cost, and low electromagnetic heating power

Active Publication Date: 2018-12-28
FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned process is more complicated and the cost is higher, or only inlaying 430 stainless steel sheets at the bottom cannot solve the problem of the high-position double-bottom stainless steel plate of the pot body, and its electromagnetic heating power is relatively small

Method used

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  • Magnetic-conductive composition, electromagnetic heating cooker, preparation method of electromagnetic heating cooker and cooking device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] (1) Soak the outer surface of the aluminum alloy pot (thickness 2.5mm) in an aluminum hydroxide solution with a temperature of 60°C and a concentration of 40g / L for about 3 minutes, then wash with water and dry to remove oil, and then use ethanol Rinse the outer surface of the aluminum alloy pot for about 10 minutes to degrease to obtain a clean surface;

[0052] (2) The magnetically conductive coating composition (containing 70.42% by weight of iron alloy powder (the iron content is 98% by weight, the carbon content is 2% by weight, and the average particle size is 20 to 40 μm) and 29.58% by weight of nickel powder, wherein iron: The mass ratio of nickel is 7:3) cold spraying is carried out on the clean surface of the pot body to form a magnetic layer. The cold spraying conditions are: the working gas is nitrogen, and the nitrogen speed is 1m 3 / min, the spraying pressure of cold spraying is 4MPa, the spraying temperature of cold spraying is 300 ℃, the spraying distanc...

Embodiment 2

[0056] (1) Soak the outer surface of the aluminum alloy pan body (thickness 2mm) in an aluminum hydroxide solution with a temperature of 70°C and a concentration of 40g / L for about 3 minutes, then wash with water and dry to remove oil, and then use acetone to Rinse the outer surface of the aluminum alloy pot for about 10 minutes to degrease to obtain a clean surface;

[0057] (2) The magnetically conductive coating composition (containing 80.81% by weight of iron alloy powder (the iron content is 95% by weight, the Mn content is 5% by weight, and the average particle size is 20 to 40 μm) and 19.19% by weight cobalt powder, wherein iron: The mass ratio of cobalt is 8:2) cold spraying is carried out on the clean surface of the pot body to form a magnetic layer. The cold spraying conditions are: the working gas is nitrogen, and the nitrogen speed is 1m 3 / min, the spraying pressure of cold spraying is 4MPa, the spraying temperature of cold spraying is 300 ℃, the spraying distance...

Embodiment 3

[0061] (1) Put the outer surface of the 304 stainless steel pot (thickness 1mm) in an aluminum hydroxide solution with a temperature of 50°C and a concentration of 45g / L for about 3 minutes, then wash it with water and dry it to remove oil, and then use acetone to degrease the aluminum Rinse the outer surface of the alloy pot for about 10 minutes to degrease to obtain a clean surface;

[0062] (2) The magnetically conductive coating composition (containing 70.42% by weight of iron alloy powder (98% by weight of iron content, 2% by weight of silicon content, and an average particle size of 20-40 μm) and 29.58% by weight of 304 stainless steel powder, wherein iron : The mass ratio of 304 stainless steel is 7:3) Cold spraying is carried out on the clean surface of the pot body to form a magnetic layer. The cold spraying conditions are: the working gas is air, and the air speed is 2m 3 / min, the spraying pressure of cold spraying is 1MPa, the spraying temperature of cold spraying ...

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Abstract

The invention relates to the field of magnetic-conductive coatings of cookers, and discloses a magnetic-conductive composition, an electromagnetic heating cooker, a preparation method of the electromagnetic heating cooker and a cooking device. Based on the total weight of the composition, the magnetic-conductive composition comprises, by weight, 70-85% of iron alloy and 15-30% of additive, whereinthe content of iron in the iron alloy is, by weight, 95% or above, and the additive is selected from at least one of nickel, cobalt 304 stainless steel. A magnetic layer is formed on the outer surface of a cooker body prepared from a non-magnetic material or a weak magnetic-conductive material by using the magnetic-conductive coating so that the cooker can have the electromagnetic heating function; in the heating process, the cooker has a stable resistance value, and the stability of the electromagnetic heating power is improved.

Description

technical field [0001] The invention relates to the field of magnetically conductive coatings for non-magnetic or weakly magnetic pots, in particular to a magnetically conductive coating composition, an electromagnetic heating pot, a preparation method thereof, and cooking equipment. Background technique [0002] Materials such as aluminum alloy and 304 stainless steel are widely used in household electrical appliances, but the electromagnetic heating function of these non-magnetic or weakly magnetically permeable pans is not ideal. [0003] When the existing pots using the above materials are used for electromagnetic heating, the method of explosive welding is mostly used to compound 430 stainless steel with magnetic permeability on the outer surface of the aluminum pot to obtain Al / 430 stainless steel composite pots, or High pressure is used to inlay 430 stainless steel sheets on the bottom of the heated aluminum alloy, so that the magnetic 430 stainless steel plates can f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47J36/02A47J36/04A47J27/00A47J27/086C23C24/04
CPCA47J27/00A47J27/086A47J36/027A47J36/04C23C24/04
Inventor 李康曹达华李兴航杨玲李洪伟屈雪平
Owner FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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