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Cooking utensil and preparation method thereof

A technology for cooking utensils and cooking chambers, which is applied in the field of utensils and can solve the problems of poor non-stick effect of silicone coatings, sticking back, non-stick coatings are not wear-resistant, etc.

Pending Publication Date: 2022-06-21
WUHAN SUPOR COOKWARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these three kinds of coatings have non-stick effects, they all have obvious defects: the non-stick coating of fluorine coatings is not wear-resistant, you cannot use a shovel for cooking, and you cannot use steel wool or scouring pads to clean them. Hazardous substances, the non-stickiness decreases after wear; the non-stick effect of ceramic coatings is worse than that of fluorine coatings, and the long-lasting non-stickiness is not good. Generally, the coating is easy to fall off after 3 to 6 months of use; the non-stick effect of silicone coatings is also worse than that of fluorine coatings. The color tends to turn yellow or gray after exposure to high temperature or open flame, and the hardness decreases under high temperature, which is prone to "stick back" phenomenon
It can be seen that the persistent non-stick property of cooking utensils is relatively poor at present

Method used

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  • Cooking utensil and preparation method thereof
  • Cooking utensil and preparation method thereof
  • Cooking utensil and preparation method thereof

Examples

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Effect test

preparation example Construction

[0061] In a first aspect, the embodiments of the present application provide a method for preparing a cooking utensil, such as figure 1 shown, including the following steps:

[0062] S10, stretching the base material to form a pot body with a cooking cavity;

[0063] S20, the metal powder is sprayed to form an alloy coating on the inner surface of the pot;

[0064] S30, performing laser remelting treatment on the cooled alloy coating on the inner surface of the pot, so that the alloy coating is transformed into a high-entropy alloy coating, and the high-entropy alloy coating has non-stick properties.

[0065] In the above scheme, the high-entropy alloying of the alloy coating is carried out by laser remelting treatment. Due to the lattice distortion effect caused by the difference in the atomic radius of different elements of the high-entropy alloy, the microstructure of the alloy is disordered to a higher degree, resulting in amorphization. Trend, the high entropy of high-e...

Embodiment 1

[0114] (1) The stainless steel plate is stretched to form a pot body with a cooking cavity, and the inner surface of the pot is sanded so that the roughness of the inner surface of the pot reaches about 5um;

[0115] (2) Take the metal mixed powder mixed with iron powder, NiCr alloy, aluminum powder and copper powder with an average particle size of about 500 meshes. The alloy coating, specifically, the specific parameters of plasma spraying are as follows: the spraying distance is 150mm; the spraying current is 400A; the powder feeding speed is 25g / min; the working gas includes argon and hydrogen, wherein the gas flow of the argon is 50L / min, the gas flow rate of hydrogen is 8L / min.

[0116] (3) performing laser remelting treatment on the alloy coating on the inner surface of the pot after cooling, so that the alloy coating is converted into a high-entropy alloy coating, specifically, the treatment temperature is about 1800°C, and the laser power is 1.5kw; The laser scannin...

Embodiment 2

[0119] (1) The stainless steel plate is stretched to form a pot body with a cooking cavity, and the inner surface of the pot is sanded so that the roughness of the inner surface of the pot reaches about 5um;

[0120] (2) Take the metal mixed powder mixed with iron powder, TiV alloy, chromium powder and copper powder with an average particle size of about 600 meshes. The alloy coating, specifically, the specific parameters of plasma spraying are as follows: the spraying distance is 150mm; the spraying current is 450A; the powder feeding speed is 15g / min; the working gas includes argon and hydrogen, wherein the gas flow of the argon is 50L / min, the gas flow rate of hydrogen is 8L / min.

[0121] (3) The alloy coating on the inner surface of the pot after cooling is subjected to laser remelting treatment, so that the alloy coating is converted into a high-entropy alloy coating, specifically, the treatment temperature is about 1900 ° C, and the laser power is 2 kw; The scanning sp...

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Abstract

The invention provides a cooking utensil and a preparation method thereof, and the method comprises the following steps: carrying out stretching molding on a base material to form a pot body with a cooking cavity; metal powder is sprayed on the inner surface of the pot body through a spraying technology to form an alloy coating; and the cooled alloy coating on the inner surface of the pot body is subjected to laser remelting treatment, so that the alloy coating is converted into a high-entropy alloy coating, and the high-entropy alloy coating is non-sticky. According to the preparation method of the cooking utensil and the cooking utensil, the alloy coating is subjected to high-entropy alloying through laser remelting treatment, and due to the fact that the high-entropy alloy has low surface energy, the lasting non-stickiness of the cooking utensil can be effectively improved, and the service life of the cooking utensil is prolonged.

Description

technical field [0001] The present application relates to the technical field of utensils, and in particular, to a cooking utensil and a preparation method thereof. Background technique [0002] At present, non-stick materials for appliances mainly include fluorine coatings, ceramic coatings and silicone resins. The three mainly prepare a non-stick coating on the inner surface of the pot in the form of spraying to achieve the purpose of non-stick when heating food. The non-stick principle of fluorine coatings is mainly that fluoropolymers have extremely low surface free energy. Ceramic coatings are mainly silicon-oxygen bonds, and inorganic silicon is the main component of coatings. It is mainly to form nanostructures on the surface of the pot to achieve non-stick effect. Silicone resin mainly uses its low surface energy to achieve non-stick effect. Although these three kinds of coatings have non-stick effect, they all have obvious defects: the non-stick coating of fluor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/08C23C4/06C23C4/18C23C24/04C23C4/134C23C4/129C23C4/131C23C4/126A47J36/02
CPCC23C4/08C23C4/06C23C4/18C23C24/04C23C4/134C23C4/129C23C4/131C23C4/126A47J36/025
Inventor 李超瞿义生袁华庭张明
Owner WUHAN SUPOR COOKWARE