CN217723269U - Pan and electromagnetism stove subassembly - Google Patents

Abstract

The utility model provides a pan and electromagnetism stove subassembly. The pan includes: a pot body made of ceramic, glass or stone; the composite biocoating coating is in on the internal surface of pan main part, composite biocoating is including the coating magnetic conduction layer and coating on the internal surface of pan main part protective layer on the magnetic conduction layer, the protective layer is inorganic ceramic powder layer. According to the utility model discloses a pan, magnetic conduction layer can have longer life.

Description

Pan and electromagnetism stove subassembly

Technical Field

The application relates to the technical field of cookware, in particular to cookware.

Background

The pot body made of ceramic, glass or stone materials is used as a traditional soup pot, and has the characteristics of slow stewing with slow fire, uniform heat conduction, good heat preservation effect and no influence on soup taste. The cooker body cooked by the open fire has long cooking time, and the appearance is easy to be blackened, so that the cooker body can be suitable for the induction cooker, and the requirements are increasingly wide.

In the prior art, the path for realizing that the cooker body is suitable for the induction cooker is generally divided into two arrangement modes of outer bottom magnetic conduction and inner bottom magnetic conduction. Because pottery, glass or stone material are thicker, and the thermal conductivity is low, there are the heating efficiency low, the magnetic conduction layer because the unable in time discharge of heat causes the problem of overheated oxidation or ablation easily in the mode of setting up of outsole magnetic conduction. For the arrangement mode of the magnetic conduction of the inner bottom, the magnetic conduction layer is usually formed by thermally spraying a ferromagnetic metal material, and a protective layer formed by non-stick paint (such as fluorine paint or ceramic paint) or low-temperature glaze is additionally arranged on the magnetic conduction layer, so that the protective layer is easily damaged in the using process to expose the magnetic conduction layer and further influence the service life of the magnetic conduction layer.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims to provide a pot to solve the problem that the magnetic conduction life-span of the magnetic conduction layer of the pottery type pot among the prior art is shorter.

An object of the utility model is to provide a cooker, the cooker includes: a pot body made of ceramic, glass or stone material; composite coating, the coating is in on the internal surface of pan main part, composite coating is including the coating magnetic conduction layer and the coating on the internal surface of pan main part protective layer on the magnetic conduction layer, the protective layer is inorganic ceramic powder layer.

In an embodiment, the inorganic ceramic powder layer is made of aluminum oxide, titanium suboxide, ferrous titanate, titanium carbide, titanium nitride, silicon carbide, tungsten carbide, or titanium boride.

In an embodiment, the thickness of the inorganic ceramic powder layer is between 100 μm and 300 μm.

In an embodiment, the magnetically permeable layer is between 80 μm and 200 μm thick.

In an embodiment, the magnetically conductive layer is made of a non-magnetic metal material, and the non-magnetic metal material is aluminum, aluminum alloy, copper alloy; or the magnetic conduction layer is made of a magnetic metal material, and the magnetic metal material is iron or iron alloy.

In an embodiment, the magnetic conductive layer is formed by arc spraying or cold spraying, and the inorganic ceramic powder layer is formed by plasma spraying.

In an embodiment, the inorganic ceramic powder layer has a pore structure formed by spraying inorganic ceramic powder, at least a part of pores in the pore structure are filled with a sealing material, the sealing material is nano-silica formed by hydrolyzing silazane or the sealing material is siloxane.

In an embodiment, the pot body comprises a pot bottom and a pot body connected with the pot bottom, the magnetic conduction layer at least partially covers the inner surface of the pot bottom, and the protection layer covers the outer edge of the magnetic conduction layer.

In an embodiment, the composite coating further includes a ceramic glaze layer, wherein the ceramic glaze layer is disposed on the pot body, the magnetic conduction layer is disposed on the surface of the ceramic glaze layer, the ceramic glaze layer at the outer edge of the magnetic conduction layer and the magnetic conduction layer have a rough structure, and the protective layer covers the position corresponding to the rough structure.

According to the second aspect of the application, an electromagnetic oven assembly is provided, which comprises the electromagnetic oven and the cooker.

According to pan and electromagnetism stove subassembly of this application, the outside through the magnetic conduction layer at the pan sets up inorganic ceramic powder layer as the protective layer, and the protective layer has that the corrosion resistance is good, compactness is high, heat-resisting stability is good and thermal stress hangs down the grade advantage to can make the magnetic conduction layer of being protected difficult with direct contact such as air, water, food, thereby can avoid the magnetic conduction layer to be by oxidation or corruption, and then can prolong the life of magnetic conduction layer. In addition, because the inorganic ceramic powder layer has better wear resistance and is not easy to wear, the magnetic conduction layer can be protected from being damaged, and the service life of the magnetic conduction layer can be prolonged.

Drawings

The above and other objects and features of the present application will become more apparent from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic cross-sectional structure view of a pot according to an embodiment of the present application;

fig. 2 is an enlarged schematic view at I in fig. 1.

Detailed Description

The inventive concept will be described more fully hereinafter with reference to the exemplary embodiments, which, however, may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the inventive concept to those skilled in the art.

The ceramic, glass or stone cooker body serving as a traditional soup cooker has the characteristics of slow stewing with slow fire, uniform heat conduction, good heat preservation effect and no influence on soup taste. The cooker body cooked by open fire has long cooking time and the appearance is easy to be blackened, so the cooker body can be suitable for the electromagnetic oven and has increasingly wide requirements.

In the prior art, the path for realizing the cooker body suitable for the induction cooker is generally divided into an arrangement mode of outer bottom magnetic conduction and inner bottom magnetic conduction. Because pottery, glass or stone material are thicker, and the thermal conductivity is low, there are the heating efficiency low, the magnetic conduction layer because the unable in time discharge of heat causes the problem of overheated oxidation or ablation easily in the mode of setting up of outsole magnetic conduction. For the arrangement mode of the magnetic conduction of the inner bottom, the magnetic conduction layer is usually formed by thermally spraying a ferromagnetic metal material, and a protective layer formed by non-stick paint (such as fluorine paint or ceramic paint) or low-temperature glaze is additionally arranged on the magnetic conduction layer, so that the protective layer is easily damaged in the using process to expose the magnetic conduction layer, thereby influencing the service life of the magnetic conduction layer.

In order to solve the problems in the prior art, the present application is directed to provide a pot with long magnetic conduction life. For this reason, the present applicant has studied the application of the inorganic ceramic powder to the pot, and has desired to provide a pot having a long magnetic conductive life.

The inorganic ceramic powder has the advantages of non-conductivity, good corrosion resistance, high compactness, good heat-resistant stability, low thermal stress and the like, so that the inorganic ceramic powder can be used as a material for manufacturing a protective layer of a cookware, thereby manufacturing the cookware with a magnetic conduction layer with better protection effect.

The inventive concept of the present application will be described in detail below with reference to exemplary embodiments.

According to a first aspect of the application a cookware is provided. Fig. 1 is a schematic sectional structure view of a pot according to an embodiment of the application, and fig. 2 is an enlarged schematic view at I in fig. 1. As shown in fig. 1 and 2, the pot includes a pot main body 10 made of ceramic, glass or stone material and a composite coating 20 coated on an inner surface of the pot main body 10, wherein the composite coating 20 includes a magnetic conductive layer 22 coated on the inner surface of the pot main body 10 and a protective layer 23 coated on the magnetic conductive layer 22, and the protective layer 23 is an inorganic ceramic powder layer.

According to the pan of this application, through set up inorganic ceramic powder layer as protective layer 23 in magnetic conduction layer 22 outside, protective layer 23 has advantages such as corrosion resistance is good, compactness is high, heat-resisting stability is good and thermal stress is low to can make protected magnetic conduction layer 22 be difficult for with air, water, direct contact such as food, thereby can avoid magnetic conduction layer 22 to be oxidized or corrode, and then can prolong magnetic conduction layer 22's life. In addition, because the inorganic ceramic powder layer has better wearability, can be difficult to use wearing and tearing to can protect the magnetic conduction layer not destroyed, and then can prolong the life of magnetic conduction layer 22.

According to this application, when placing the pan on the electromagnetism stove heating, electromagnetism stove and magnetic conduction layer 22 interact make magnetic conduction layer 22 themogenesis to the heat of magnetic conduction layer 22 can transmit to the food of splendid attire in the pan main part 10 on. The magnetically permeable layer 22 may be formed of a ferromagnetic metal material, or may be formed of a non-ferromagnetic metal material.

In some embodiments, magnetically permeable layer 22 is formed from a ferromagnetic metal material. In an exemplary embodiment, the magnetic metal material is iron or an iron alloy. The magnetic conduction layer 22 formed by spraying the ferromagnetic metal material has high resistivity, high heat conduction efficiency and low manufacturing cost. In other embodiments, magnetically permeable layer 22 is formed from a non-ferromagnetic metal material. In an exemplary embodiment, the non-magnetic metal material may be aluminum, an aluminum alloy, copper, or a copper alloy. The magnetic conductive layer 22 formed by spraying non-ferromagnetic metal can be made thinner than that formed by ferromagnetic metal, has good plasticity and small thermal stress, and is not easy to deform to cause falling off. In a preferred embodiment, the magnetically permeable layer is made of a non-magnetic metal material. The non-magnetic metal material has high electrical conductivity and low toughness, so that the thermal stress is extremely low in a thin state, and aluminum and copper have good wettability to ceramic, so that the magnetic conduction layer 22 and the pot main body 10 have high binding force. It should be noted that, the ferromagnetic metal material is used to form the magnetic conduction layer 22, and a certain roughness needs to be set in the pot main body 10, so that the ferromagnetic metal material can be better bonded to the pot main body 10.

According to the present application, the non-magnetic metallic material is in the form of a wire, which has a lower cost when sprayed by electric arc than when a non-magnetic metallic material in the form of a powder is used. Specifically, pure aluminum wires or pure copper wires can be sprayed by electric arcs, and the diameter of each wire is 0.8mm-1.5mm. The working gas of the electric arc spraying can be air, the electric arc spraying is to blow the wire materials into liquid drops after the wire materials are melted, finally formed metal particles are deposited into larger particles, when the working gas is air, only the surfaces of the particles are oxidized to a certain degree, and the aluminum oxide film can prevent further oxidation, so that even if the working gas is selected to be air, the final magnetic conduction power cannot be greatly influenced. In the spraying process, the voltage can be 30V-45V, the current can be 180A-230A, the spraying distance can be 120mm-180mm, and the air atomization air pressure can be 0.4MPa-0.7MPa. Under the above parameters, the high-speed air at the muzzle disperses and accelerates the molten liquid droplets to deposit on the surface of the pot main body 10 to form the magnetically conductive layer 22. And the magnetic conduction layer 22 is formed by an electric arc spraying or cold spraying mode, wherein the electric arc spraying mode has low cost and high efficiency, and the cold spraying mode has a compact coating, low oxidation degree and high magnetic conduction power.

Non-ferromagnetic metals are too conductive at normal thicknesses (e.g., 1 mm), such as, but not limited to, aluminum, copper, and typically have a very small resistance R. According to the heat formula, the generated heat is very small. In addition, because the resistance is very small, the generated induced current can be very large, and the overcurrent protection of the induction cooker is easily caused, so that the induction cooker cannot be heated. However, when the magnetic conductive layer made of aluminum or copper is made sufficiently thin, the cross-sectional resistance increases, and induction is possible. The magnetic conduction layer 22 must reach a certain thickness to be induced, aluminum is a paramagnetic material and does not have a magnetism gathering effect, the magnetic conduction layer 22 with the magnetic conduction at the inner bottom has a preset distance from the coil of the induction cooker, and the problem that the induction cannot be caused due to the fact that the thickness of the magnetic conduction layer is too thin or too thick is caused when the magnetic field intensity is weak. If permeable layer 22 is too thin, the resistance of permeable layer 22 is very large, the induced current generated is very small and cannot work without meeting the requirement of the induction cooker, and the thickness uniformity is difficult to control because of being too thin; if the magnetic conduction layer 22 is too thick, the resistance of the magnetic conduction layer 22 is very small, which does not meet the requirement of the electromagnetic oven for pot inspection and cannot work. In an exemplary embodiment, the magnetically permeable layer is between 80 μm and 200 μm thick.

According to the application, the protective layer is an inorganic ceramic powder layer made of alumina, titanium oxide, titanium suboxide, ferrous titanate, titanium carbide, titanium nitride, silicon carbide, tungsten carbide or titanium boride. The materials are non-conductive, good in corrosion resistance, high in compactness, good in heat resistance stability and low in thermal stress, and can be used as materials for forming a protective layer of the magnetic conduction layer, so that the service life of the magnetic conduction layer is prolonged.

In the embodiment, the material for manufacturing the inorganic ceramic powder layer is in a powder shape, and compared with the spraying wire material, the powder material is sprayed to form a coating with smaller pores, so that the protective layer can effectively prevent oxygen, water and the like from entering the magnetic conduction layer 22 to corrode the magnetic conduction layer, and the service life of the protective layer is further influenced. In an exemplary embodiment, the material from which the inorganic ceramic powder layer is made has a particle size range of 25 μm to 48 μm.

In the embodiment, the protection layer 23 may be formed by an existing layer forming process, and specifically, a plasma spraying method may be adopted. In an exemplary embodiment, the parameters of the plasma spray may be: the powder feeding speed is 20g/min-35g/min, the spraying distance is 110mm-160mm, the arc current is 550A-650A, the hydrogen pressure is 0.5MPa-0.8MPa, the flow rate is 80L/h-250L/h, the argon pressure is 0.8MPa-1.4MPa, and the flow rate is 1200L/h-1800L/h. Under the above parameters, the high-pressure plasma flame flow formed at the muzzle heats the inorganic ceramic powder to be molten, and then deposits on the surface of the magnetic conduction layer 22 to form the protective layer 23 with the thickness of 100 μm to 300 μm. If the thickness of the protective layer 23 is less than 100 μm and the protective layer 23 is too thin, the corrosion resistance is weak and sanding may reveal the bottom. If the thickness of the protective layer 23 exceeds 300 μm and the protective layer 23 is too thick, the cost is wasted, and the thermal stress of the long-time spraying is large, which may cause the metal magnetic conduction layer 22 to fall off, even because the local long-time high temperature affects the strength of the pot body.

In an embodiment, the interior of the protective layer 23 has a pore structure formed by spraying inorganic ceramic powder, and at least a part of pores in the pore structure is filled with a blocking material, wherein the blocking material is nano-silica or siloxane formed by hydrolyzing silazane.

In these embodiments, the protective layer 23 having pores inside is easily formed by spraying inorganic ceramic powder, and by using silazane or siloxane as a material for closing the pores, the pores can be filled to reduce the porosity, thereby improving the corrosion resistance of the inner coating of the pot.

In an embodiment, the pot body comprises a pot bottom and a pot body connected with the pot bottom, the magnetic conduction layer at least partially covers the inner surface of the pot bottom, and the protection layer 23 may also cover the outer edge of the magnetic conduction layer 22. In an exemplary embodiment, masking is performed using a jig, and only a portion of the bottom of the pan is sprayed when the magnetically permeable layer 22 is sprayed. Specifically, the magnetic conduction layer is in a circular shape with the diameter of 11cm-16cm, and the diameter of the magnetic conduction layer is close to that of the induction cooker coil in the range.

In the embodiments, the magnetic conduction layer is arranged on the pot bottom area, so that the magnetic conduction layer can be induced with the coil of the induction cooker, and the normal magnetic conduction can be ensured. If the whole inner surface of the pot is thermally sprayed with the covering magnetic conduction layer 22, the radian of the pot body is limited, so that the technical process is complex, the quality stability is poor, and the cost is increased. Protective layer 23 is disposed to cover permeable layer 22, and at least cover the outer edge of permeable layer 22, so as to prevent permeable layer 22 from being exposed, thereby preventing permeable layer 22 from being corroded and preventing elements in permeable layer 22 from being sucked out (for example, aluminum element is precipitated and is eaten by human body, which may cause bad influence).

According to the present application, the pot main body 10 may be made of ceramic, glass, stone or the like. The thickness of the pot main body 10 may be 5mm to 7mm. Before the magnetic conduction layer 22 is formed, a ceramic glaze layer 21 can be arranged on the inner wall surface of the pot body 10, the ceramic glaze layer 21 can keep the characteristics of the ceramic pot, and the problem that the base material of the pot body 10 is too high in water absorption rate to cause later cracking in the use process can be prevented.

In an embodiment, the pot further comprises a ceramic glaze layer 21, the ceramic glaze layer 21 is arranged on the inner surface of the pot body 10, and the magnetic conduction layer 22 is arranged on the surface of the ceramic glaze layer 21. The pot with the ceramic glaze layer can resist high-temperature friction and has the advantages of corrosion resistance, non-stick surface and the like. The inorganic ceramic powder can not deposit on the surface of the smooth ceramic glaze layer or the deposition efficiency is extremely low. Therefore, in the embodiment, the ceramic glaze layer at the outer edge of the magnetic conduction layer and the magnetic conduction layer are provided with rough structures, and the protective layer covers the positions corresponding to the rough structures. The coarse structure can improve the adhesive force of the protective layer 23, and prevent the protective layer 23 from collapsing and falling off in the use process, thereby prolonging the service life of the cookware. In addition, the ceramic glaze layer 21 is arranged, so that when the protective layer 23 is formed by spraying inorganic ceramic powder, the protective layer can be directly sprayed without being shielded by a clamp, and the protective layer 23 cannot be normally deposited on the rest ceramic glaze layers 21 without a coarse structure, so that the redundant protective layer 23 can be conveniently removed subsequently. In an exemplary embodiment, the thickness of the ceramic glaze layer 21 may be 250 μm to 400 μm.

According to a second aspect of the present application, there is provided an induction cooker assembly, including an induction cooker and the cookware in the above embodiments, so that all the advantages of the above embodiments are achieved, and details are not repeated herein.

In the embodiment, the magnetic conduction layer of the cooker is circular and is close to the diameter of the coil of the induction cooker, so that normal magnetic conduction can be ensured. In an exemplary embodiment, the magnetically permeable layer has a diameter in the range of 11cm to 16 cm.

Above, the manufacturing method of the pot and the pot conceived by the present invention are described in detail in connection with the exemplary embodiments. In the following, the advantageous effects of the inventive concept will be described in more detail with reference to specific embodiments, but the scope of protection of the inventive concept is not limited to the embodiments.

Example 1

The pot according to embodiment 1 is manufactured by the following method.

And S10, providing a cookware main body which is made of ceramics and has the thickness of 5mm.

And S20, carrying out deoiling and degreasing treatment on the pot body. Specifically, the inner surface of the pot main body is washed with a volatile fat-soluble organic solvent (ethanol) to remove oil stains on the inner surface.

Step S30, forming a ceramic glaze layer with the thickness of 300 mu m on the inner surface of the pot body.

And S40, selecting an aluminum wire with the diameter of 1.0mm as a material for forming the magnetic conduction layer, shielding the pot wall of the pot body by using a clamp, and forming the magnetic conduction layer with the thickness of 80 microns on the inner surface of the pot bottom of the pot body by using an electric arc spraying process, wherein the magnetic conduction layer is in a circular shape with the diameter of 10 cm.

And S50, sanding and polishing the magnetic conduction layer by using scouring pad, removing large particles on the surface, reducing the surface roughness, then performing sand blasting on the magnetic conduction layer by using 100-mesh quartz sand, shielding the pot wall of the pot main body by using a clamp in the sand blasting process, and only spraying the magnetic conduction layer on the pot bottom, wherein the sand blasting area is circular with the diameter of 10cm, and the roughness Ra of the surface after sand blasting treatment is 5 mu m.

And S60, selecting alumina powder with the average grain diameter of 30 mu m as a material for forming the protective layer, loading the alumina powder into a powder feeder, and forming the protective layer with the thickness of 100 mu m by adopting a plasma spraying process. Wherein, the parameters of the plasma spraying process are as follows: the powder feeding speed is 30g/min, the spraying distance is 150mm, the arc current is 600A, the hydrogen pressure is 0.6MPa, the flow is 180L/h, the argon pressure is 1.1MPa, and the flow is 1500L/h. Under the above parameters, the high pressure plasma flame stream formed at the muzzle heated the alumina powder to melt, and then deposited on the surface of the magnetically conductive layer, thereby producing the pot of example 1.

Example 2

The pot of example 2 was manufactured in the same manner as in example 1, except that the magnetic conductive layer was sprayed to a thickness of 150 μm.

Example 3

A pot of example 3 was produced in the same manner as in example 1, except that the magnetic conductive layer was sprayed to a thickness of 200 μm.

Example 4

A pot of example 4 was produced in the same manner as in example 1, except that the sprayed thickness of the protective layer was 200 μm.

Example 5

A pot of example 5 was produced in the same manner as in example 1, except that the sprayed thickness of the protective layer was 300 μm.

Example 6

The pot of example 6 was manufactured in the same manner as in example 1, except that copper wire having a diameter of 1.0mm was used instead of aluminum wire to form the magnetic conductive layer.

Example 7

A pot of example 7 was produced in the same manner as in example 1, except that a titanium oxide powder having an average particle size of 30 μm was used in place of the alumina powder to form the protective layer.

Example 8

A pot of example 8 was produced in the same manner as in example 1, except that after step S30, the surface of the ceramic glaze layer was roughened and an iron wire having a diameter of 1.0mm was used instead of the aluminum wire to form the magnetic conductive layer.

Example 9

The pot of example 9 was manufactured in the same manner as in example 1, except that the shot-blasted area was in the shape of a circle with a diameter of 11cm, the shot-blasted area was the magnetic conductive layer and the ceramic glaze layer at the outer edge of the magnetic conductive layer in step S50.

Comparative example 1

The pot of comparative example 1 was manufactured in the same manner as in example 1, except that a ceramic paint layer having a thickness of 35 d was formed by air spraying instead of the protective layer of example 1. Wherein, the air spraying parameters are as follows: the air spray gun with the caliber of 1.5mm has the air pressure of 0.3MPa, and the performance of the ceramic coating layer with the diameter of 35 mu m is superior to that of the ceramic coating layer with the diameter of 100 mu m in all aspects.

Comparative example 2

A pot of comparative example 2 was produced in the same manner as in example 1, except that the protective layer was not formed outside the magnetic conductive layer.

Comparative example 3

The pot of comparative example 3 was manufactured in the same manner as in example 1, except that step S50 was not included, i.e., the magnetic conductive layer and the peripheral ceramic glaze layer were not sand-blasted.

Performance index testing

The performance of the pots of examples 1 to 9 and comparative examples 1 to 3 was tested as follows, and the results are recorded in table 1 below:

the corrosion resistance, magnetic conductivity and sanitary migration performance of the pots prepared in the examples and the comparative examples were tested.

(1) Corrosion resistance: referring to a 6.17 corrosion resistance test method in GBT 32432-2015 household steel pan, 95% of distilled water by weight and 5% of analytically pure sodium chloride by weight are mixed, distilled water is continuously supplemented until the water surface line is constant in the boiling process to ensure that the concentration of the solution is constant, the solution is put into a pan to be boiled and keep slightly boiling, and the rusting time in the pan is recorded; according to the project requirement, the corrosion resistance is not less than 3h, and the corrosion resistance is unqualified when the corrosion resistance is less than 3 h.

(2) And (3) magnetic conductivity testing: the initial heating power of the magnetic conduction layer of the pot is measured by using a standard induction cooker, after the pot is used for 100 hours in the household induction cooker 2100W, the using heating power of the magnetic conduction layer of the pot is measured by using the standard induction cooker again, and the heating power loss rate is calculated. Wherein, the heating power loss rate is the percentage value of the initial heating power divided by the used heating power. The protective layer is provided with a protective layer, wherein the magnetic conduction layer is corroded to cause power reduction until the power is not induced, so that the heating power loss rate can represent the protective capability of the protective layer, and the larger the value of the heating power loss rate is, the worse the protective capability of the protective layer is, and the opposite is.

(3) Hygienic migration test: boiling 5g/L citric acid for 2h and repeating for three times, keeping the concentration unchanged in a boiling test (continuously supplementing distilled water until the water surface line is constant to ensure that the concentration is unchanged), testing the contents (namely migration amount) of arsenic, cadmium, lead, antimony, aluminum, chromium, cobalt, copper, manganese, molybdenum, nickel, tin and zinc elements in the boiled citric acid, and calculating to be qualified only when the three-time test results meet the requirement of a limit value of national standards, otherwise, the three-time test results are unqualified.

TABLE 1 Performance index test data for examples of the present application and comparative examples

To sum up, according to the pan of this application embodiment, composite coating's corrosion resistance is better, and the power loss rate that generates heat is less relatively, explains that the protective layer's protective capacities is better relatively, therefore magnetic conduction layer can have longer life, and satisfies the requirement of sanitary migration test, accords with the consumer to the requirement of product health.

Although the embodiments of the present application have been described in detail above, those skilled in the art may make various modifications and alterations to the embodiments of the present application without departing from the spirit and scope of the present application. It will be understood that those skilled in the art will recognize modifications and variations as falling within the spirit and scope of the embodiments of the application as defined by the claims.

Claims (10)

1. A pot, characterized in that, the pot includes:

a pot body made of ceramic, glass or stone material;

the composite biocoating, the coating is in on the internal surface of pan main part, the composite biocoating is including the coating magnetic conduction layer and coating on the internal surface of pan main part protective layer on the magnetic conduction layer, the protective layer is inorganic ceramic powder layer.

2. The pot according to claim 1, wherein the inorganic ceramic powder layer is made of alumina, titanium oxide, titanium suboxide, ferrous titanate, titanium carbide, titanium nitride, silicon carbide, tungsten carbide, or titanium boride.

3. The cookware according to claim 1, wherein the thickness of said inorganic ceramic powder layer is between 100 and 300 μm.

4. The cookware according to claim 1, wherein said magnetically conductive layer has a thickness between 80 and 200 μm.

5. The cookware according to claim 1, wherein said magnetically conductive layer is made of a non-magnetic metal material selected from the group consisting of aluminum, aluminum alloy, copper alloy; or

The magnetic conduction layer is made of a magnetic metal material, and the magnetic metal material is iron or iron alloy.

6. The cookware according to claim 1, wherein said magnetically conductive layer is formed by arc spraying or cold spraying, and said inorganic ceramic powder layer is formed by plasma spraying.

7. The cookware according to claim 1, wherein the interior of said inorganic ceramic powder layer has a pore structure formed by spraying inorganic ceramic powder, at least a portion of the pores of said pore structure being filled with a closing material which is nano-silica formed by hydrolysis of silazane or said closing material is siloxane.

8. The cookware according to any of claims 1 to 7, wherein said cookware body comprises a bottom and a body connected to said bottom, said magnetically conductive layer at least partially covering an inner surface of said bottom, said protective layer covering an outer edge of said magnetically conductive layer.

9. The cookware according to claim 8, wherein said composite coating further comprises a ceramic glaze layer, wherein said ceramic glaze layer is provided on said cookware body, said magnetic conductive layer is provided on the surface of said ceramic glaze layer, said ceramic glaze layer at the outer edge of said magnetic conductive layer and said magnetic conductive layer have a rough structure.

10. An induction cooker assembly, characterized in that the induction cooker assembly comprises an induction cooker and a pot as claimed in any one of claims 1 to 9.

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