CN212815912U - Cooking utensil - Google Patents
Cooking utensil Download PDFInfo
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- CN212815912U CN212815912U CN202021222450.2U CN202021222450U CN212815912U CN 212815912 U CN212815912 U CN 212815912U CN 202021222450 U CN202021222450 U CN 202021222450U CN 212815912 U CN212815912 U CN 212815912U
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/02—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
- A47J36/025—Vessels with non-stick features, e.g. coatings
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
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- Frying-Pans Or Fryers (AREA)
Abstract
The present application provides a cooking appliance comprising a vessel and a non-stick layer; the non-stick layer covers the surface of the vessel; the non-stick layer is an inorganic porous material layer and/or a self-lubricating material layer. This application can avoid using non-stick coating, improves cooking utensil's durability, prolongs cooking utensil's life, and the guarantee user's is healthy.
Description
Technical Field
The application relates to the technical field of kitchen tools, in particular to a cooking appliance.
Background
The existing cooking utensil has the non-stick effect by mainly spraying non-stick coating (such as fluorine-containing coating or ceramic coating) on a utensil, and avoids the phenomenon of sticking a pot in the process of cooking food. However, the existing non-stick coating, whether being a fluorine-containing coating or a ceramic coating, has the defects of poor temperature resistance and easy scratching and breakage, so that the cooking utensil is easily abraded and scratched by food materials or a slice in the using process, the non-stick property is reduced until the non-stick property is lost, and the service life of the cooking utensil is influenced. Therefore, in order to reduce abrasion and scratches, the existing cooking appliances need to be matched with a specific silica gel shovel or a specific wood shovel, so that the cooking habit that Chinese people like to use an iron shovel is very inconsistent, and the experience feeling of consumers is poor.
SUMMERY OF THE UTILITY MODEL
The application provides a cooking utensil to avoid using non-stick coating, improve cooking utensil's durability, extension cooking utensil's life ensures that the user's is healthy.
A first aspect of the present application provides a cooking appliance, comprising:
a vessel;
the non-stick layer covers the surface of the vessel;
the non-stick layer is an inorganic porous material layer and/or a self-lubricating material layer.
The cooking utensil comprises a utensil and a non-stick layer, wherein the non-stick layer covers the surface of the utensil and is an inorganic porous material layer and/or a self-lubricating material layer; the inorganic porous material has non-stick performance due to the characteristics of lower surface energy and porous oil absorption, and the self-lubricating material has non-stick performance due to the characteristics of self-lubricating and porous oil absorption formed by the lamellar crystal, so that the requirement of the non-stick layer on the non-stick performance can be met; the inorganic porous material and the self-lubricating material have stable crystals and high melting points, so that the inorganic porous material and the self-lubricating material have better thermal stability and high temperature resistance, and have stable structures and are not easy to change substances in the cooking process, so that the inorganic porous material and the self-lubricating material are not easy to age; the inorganic porous material and the self-lubricating material have high hardness and high mechanical strength, and are not easy to scratch even when a shovel is used for cooking food, so that the durability of the cooking appliance can be effectively improved, and the service life of the cooking appliance is prolonged; the non-stick layer is made of inorganic porous materials which are not easy to fall off, so that non-stick paint adopted in the prior art is replaced, and the body health of a user can be guaranteed.
Optionally, the thickness of the non-stick layer is 30-300 μm, so that the non-stick layer is convenient to process, the cost of the non-stick vessel is controlled, and a complete surface structure can be formed.
Optionally, the surface roughness of the non-stick layer is 10 μm to 50 μm.
Optionally, the inorganic porous material layer is a diatomite layer, a bentonite layer or a zeolite layer, that is, the inorganic porous material is made of natural inorganic porous materials such as diatomite, bentonite or zeolite, so that raw materials are convenient to obtain, and the manufacturing cost is reduced.
Optionally, the self-lubricating material layer is a graphite layer or a graphite fluoride layer or a molybdenum disulfide layer, that is, the self-lubricating material is made of natural inorganic self-lubricating materials such as graphite, graphite fluoride or molybdenum disulfide, raw materials are convenient to obtain, and the manufacturing cost is reduced.
Optionally, the non-stick layer is a thermal spray coating, a cold spray coating, or a solid phase sintered layer.
Optionally, the cooking utensil provided by the present application further comprises a primer layer disposed between the vessel and the non-stick layer.
The cooking utensil further increases the bonding strength between the non-stick layer and the utensil by arranging the priming layer, and effectively prevents the non-stick layer from falling off; the hardness of the cooking utensil can be improved, and the deformation of the utensil and the damage of the non-stick layer can be prevented.
Optionally, the bottom layer is a concave-convex structure on the surface of the vessel, the concave-convex structure comprises a plurality of protrusions, and the area of the cross section of each protrusion is 0.04-1 mm2；
The distance between two adjacent protrusions is 0.08-0.4 mm.
The bottom layer of the cooking utensil is a concave-convex structure on the surface of a vessel, the concave-convex structure comprises a plurality of convex parts, and the concave-convex structure can further enable the surface of the non-stick layer to be in a concave-convex structure, so that the phenomenon of adhesion caused by large-area contact of food materials and the bottom of a pan is prevented, the wear resistance can be enhanced, the non-stick service life is prolonged, the contact area of a turner and the non-stick layer can be reduced, the turner is prevented from scratching or wearing the non-stick layer, and the wear resistance of the non-stick layer is enhanced; the size of the bulge is adjusted to ensure that the expected wear resistance and permanent non-stick property are achieved; when the cross section of the convex part is too large or the distance between two adjacent convex parts is too small, the food material or the pancake turner is in large-area contact with the convex part, and adhesion or abrasion can still be caused; when the cross section of the protruding part is too small, or the distance between two adjacent protruding parts is too large, the strength of the protruding part is too small or the stress is too large, so that the protruding part is easy to break integrally and fall off.
Optionally, a total cross-sectional area of the plurality of protrusions occupies 40% to 60% of a cross-sectional area of the relief structure. If the density of the convex parts is too small, the smooth groove areas among the convex parts cannot be protected, and the convex parts are easy to scratch, damage and fall off; if the density of the convex part is too large, the area of the groove area is small, the effect of enhancing the lasting non-adhesiveness is weak, and the groove is too narrow, so that the pollution dirt attached inside is not easy to clean, and the use experience is influenced.
Optionally, the concave-convex structure comprises a plurality of convex parts, and the width of the cross section of each convex part is 0.1-1 mm. Within this range, the cross-sectional area of the projection can be made appropriate, the overall strength of the projection can meet the use requirements, and the projection can be prevented from being broken in a certain direction due to an excessively small dimension of the projection in the certain direction in the cross-section.
Optionally, the concave-convex structure further comprises a plurality of concave portions, and the height difference between the highest position of each convex portion and the lowest position of each concave portion ranges from 0.02mm to 0.1 mm. Within the range of the height difference, the function of prolonging the lasting non-stick service life can be achieved, and the problems of reduced non-stick property, large contact resistance with a slice and inconvenient use caused by too large roughness can be avoided.
Optionally, the thickness of the primer layer is 30 μm to 300 μm, and within this thickness range, the primer layer 3 is conveniently processed, the cost of the cooking appliance is controlled, and a complete surface structure can be formed.
Optionally, the roughness of the primer layer is 10 μm to 50 μm.
Optionally, the priming layer is a high-hardness metal powder layer or a high-hardness alloy powder layer covering the surface of the vessel.
Optionally, the surface of the vessel is an aluminum layer or an aluminum alloy layer, and the bottom layer is an anodic oxidation layer.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
Fig. 1 is a partial schematic structural diagram of a cooking appliance according to an embodiment of the present disclosure;
fig. 2 is a partial schematic structural view of another cooking appliance provided in the embodiment of the present application;
fig. 3 is a partially enlarged view of fig. 2.
Reference numerals:
1-a vessel;
2-a non-stick layer;
3, priming coat;
30-a relief structure;
301-a boss;
302-concave part.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In the description of the present application, unless explicitly stated or limited otherwise, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless specified or indicated otherwise; the terms "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, integrally connected, or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present application, it should be understood that the terms "upper" and "lower" used in the description of the embodiments of the present application are used in a descriptive sense only and not for purposes of limitation. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.
As shown in fig. 1 to 3, the present embodiment provides a cooking appliance including a vessel 1 and a non-stick layer 2. The vessel 1 can be a sheet formed by metal materials such as aluminum, aluminum alloy, stainless steel, iron and the like or a composite sheet formed by two or more materials; the non-stick layer 2 covers the surface of the vessel 1. The non-stick layer 2 can be arranged on the inner surface of the vessel 1, so that the phenomenon that food materials in the vessel stick to a pot in the cooking process is effectively avoided; the non-stick layer 2 can also be arranged on the outer surface of the vessel 1 to avoid the pollution which is difficult to clean on the outside of the vessel. The non-stick layer 2 may cover the surface of the dish 1 completely, or may cover only the area of the surface of the dish 1 corresponding to the bottom of the pan.
The non-stick layer 2 is an inorganic porous material layer or a self-lubricating material layer, that is, the non-stick layer 2 may be formed by only coating an inorganic porous material or only coating a self-lubricating material. The inorganic porous material has non-stick performance due to the characteristics of lower surface energy and porous oil absorption, and the self-lubricating material has non-stick performance due to the characteristics of self-lubricating and porous oil absorption formed by the lamellar crystal, so that the requirement of the non-stick layer 2 on the non-stick performance can be met; the inorganic porous material and the self-lubricating material have stable crystals and high melting points, so that the inorganic porous material and the self-lubricating material have better thermal stability and high temperature resistance, and have stable structures and are not easy to change substances in the cooking process, so that the inorganic porous material and the self-lubricating material are not easy to age; the inorganic porous material and the self-lubricating material have high hardness and high mechanical strength, and are not easy to scratch even when a shovel is used for cooking food, so that the durability of the cooking appliance can be effectively improved, and the service life of the cooking appliance is prolonged; because the non-stick layer 2 adopts the inorganic porous material or the self-lubricating material which is not easy to fall off, the non-stick coating adopted in the prior art is replaced, and the inorganic porous material and the self-lubricating material are both natural materials, are healthy and nontoxic, and can ensure the body health of a user.
Further, the non-stick layer 2 can be a stacked arrangement of one or more (a plurality of, including two or more) of diatomite layer, bentonite layer or zeolite layer, that is, the inorganic porous material can be selected from natural inorganic porous materials such as diatomite, bentonite or zeolite, which is convenient for obtaining raw materials and reduces the manufacturing cost. Of course, the inorganic porous material may include two or more of diatomaceous earth, bentonite, or zeolite at the same time. And because the material characteristics of the diatomite, the bentonite or the zeolite are similar, the low surface energy, the micropore structure and the crystal stability, the melting point and the hardness which can cause the influence on the non-stick performance and the non-stick service life of each material are similar, therefore, when the inorganic porous material can simultaneously comprise two or more than two of the diatomite, the bentonite or the zeolite, the powder of each material can be mixed according to any proportion and then sprayed on the vessel substrate 1.
Specifically, the inorganic porous material has non-stick properties due to the characteristics of low surface energy and porous oil absorption. The non-stick performance of the inorganic porous material is explained in detail by taking diatomite as an example, the diatomite is composed of amorphous hydrous silicon dioxide which is in an amorphous structure, the arrangement of atoms in a three-dimensional space is short-range ordered and long-range disordered, and the surface energy is small, so that the diatomite layer has good non-stick performance; in addition, the diatomite has a special porous structure, the pore size is in the micron level, and a large amount of edible oil can be adsorbed in the using process, so that a layer of oil film is always kept on the surface of the diatomite layer, the non-stick performance of the diatomite layer is further enhanced, and the cooking utensil achieves a good non-stick effect.
Further, the non-stick layer 2 can be a graphite layer or a graphite fluoride layer or a molybdenum disulfide layer or a superposition arrangement of one or more, that is to say, the self-lubricating material is natural inorganic self-lubricating materials such as graphite, graphite fluoride or molybdenum disulfide, raw and other materials are conveniently obtained, and the manufacturing cost is reduced. Of course, the self-lubricating material may also include two or more of graphite, graphite fluoride or molybdenum disulfide. And because the material characteristics of graphite, graphite fluoride or molybdenum disulfide are similar, the layered crystal, the microporous structure and the crystal stability, the melting point and the hardness which can cause the influence on the non-stick performance and the non-stick service life of each material are similar, and when the self-lubricating material is two or more than two of graphite, graphite fluoride or molybdenum disulfide, the powder of each material can be mixed according to any proportion to form a uniform coating.
Specifically, the self-lubricating material has non-stick properties due to the self-lubricating and porous oil-absorbing properties of the lamellar crystals. The non-stick performance of the self-lubricating material is explained in detail by taking natural crystalline graphite as an example, and the natural crystalline graphite has a layered crystal structure, so that the natural crystalline graphite has good self-lubricating performance; carbon atoms form a hexagonal net-shaped graphite layer by using sp2 hybridized orbitals, the bond energy between carbon and carbon belongs to a resonance R-bond, and the bond energy is up to 627kJ/mol, so that the single-layer graphite layer has firm property and is prevented from being mechanically scratched in the using process; the acting force between the graphite layers belongs to weak van der Waals force, and the bonding energy is only 5.4kJ/mol, so that the multilayer graphite layers have good interlayer slippage, and the natural crystalline graphite has non-stick performance. In addition, a plurality of gaps are formed among the layered structures of the graphite, the size of the gaps is in the micron level, a large amount of edible oil can be adsorbed in the actual use process, a layer of oil film is always kept on the surface, and the non-stick performance is further enhanced.
In order to illustrate the non-stick effect of the cooking utensil in the embodiment of the application, the non-stick life of the existing common pot, the existing fluorine coating non-stick pot, the existing ceramic coating non-stick pot, the inorganic porous material non-stick pot and the self-lubricating material non-stick pot is compared and tested. The results of the comparative experiment are shown in the table 1 and the table 2, the non-stick grade continuously appears in two grades III, namely the non-stick requirement is not met, the experimental end point is judged at the moment, and the corresponding cycle number is used as the basis of the non-stick service life. The specific experimental procedures can refer to a non-stick pan acceleration simulation test program, however, the slice used in the experiments of the application is an iron slice rather than a silicon slice or a wood slice. Also, the cooking appliances of the respective sets of embodiments are identical in other parameters (such as shape, size, material, thickness, molding process, etc. of the vessel) except for the non-stick layer, and the rest of the experimental conditions are also identical.
Wherein, each sample number represents a group of sample pots, and the experimental results are the average value of the experimental results of the group of sample pots, for example, 4# represents a group of existing fluorine paint non-stick pots, and the cycle number 9 is the average value of the cycle number of the group of fluorine paint non-stick pots. Particularly, in the No. 10-No. 15 samples of the non-stick master batch non-stick pan, the content of the components in each group of samples is different.
It should be noted that the specific components of the coating layer of each group of samples in table 2 are as follows:
in the inorganic porous material non-stick pan, 10# is diatomite layer, 11# is bentonite layer, and 12# is zeolite layer;
in the self-lubricating material non-stick pan, No. 13 is a graphite layer, No. 14 is a graphite fluoride layer, and No. 15 is a molybdenum disulfide layer.
TABLE 1
TABLE 2
As can be seen from the data in tables 1 and 2, the non-stick pan made of inorganic porous material and the non-stick pan made of self-lubricating material have non-stick property. Compared with the existing fluorine coating or ceramic coating non-stick pan, the inorganic porous material non-stick pan and the self-lubricating material non-stick pan have higher initial non-stick performance as the existing fluorine coating or ceramic coating non-stick pan, and meet the requirement of the non-stick performance of the cooking utensil in the using process. In addition, since the non-stick pan made of the inorganic porous material and the non-stick pan made of the self-lubricating material have no non-stick coating on the surfaces, it can be seen from the above tables 1 and 2 that the non-stick pan made of the inorganic porous material and the non-stick pan made of the self-lubricating material do not cause the non-stick coating to fall off along with the use time when the iron shovel is used for cooking, so that the non-stick effect is not affected. When the existing fluorine coating or ceramic coating non-stick pan is cooked by using a shovel, the non-stick performance is influenced and reduced quickly. That is to say, the non-stick pan made of inorganic porous materials and the non-stick pan made of self-lubricating materials has the advantages of good non-stick property, long service life, no fear of using a shovel, provision of the non-stick pan which accords with the cooking habit of Chinese people, and improvement of the experience feeling of consumers.
Preferably, the thickness of the non-stick layer 2 is between 30 μm and 300 μm, and typically, but not limitatively, the thickness of the non-stick layer 2 may be, for example, 30 μm, 50 μm, 80 μm, 90 μm, 100 μm, 120 μm, 150 μm, 160 μm, 180 μm, 200 μm, 210 μm, 230 μm, 250 μm, 280 μm, 290 μm, 300 μm.
Within this thickness range, the non-stick layer 2 is easy to process, the cost of the cooking utensil is controlled, and a complete surface structure can be formed. That is, when the thickness is less than 30 μm, it is difficult to be technically realized; when the thickness is less than 300 μm, the cost is increased, and the internal stress of the non-stick layer 2 is excessively large, so that the surface of the non-stick layer 2 is damaged by chipping or the like, thereby affecting the non-stick effect.
The non-stick layer 2 is formed by non-stick powder uniformly covering the surface of the utensil 1, and the non-stick powder can be inorganic porous material powder or self-lubricating material powder.
Further, the particle size of the non-stick powder is not more than 50 μm, for example, the particle size of the non-stick powder can be 1 μm, 2 μm, 5 μm, 8 μm, 10 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm or 50 μm, etc., so that the surface of the non-stick layer 2 forms a micro-rough structure similar to the lotus leaf surface, thereby forming a self-cleaning effect and preventing the food material from being stuck to the cooking utensil.
Further, since the manufacturing cost of the cooking utensil is gradually increased as the particle size of the non-stick powder is decreased, in order to control the manufacturing cost of the cooking utensil, it is preferable that the particle size of the non-stick powder is not less than 25 μm, that is, the particle size of the non-stick powder is 25 μm to 50 μm, for example, the particle size of the non-stick powder may be 25 μm, 28 μm, 30 μm, 33 μm, 35 μm, 38 μm, 40 μm, 43 μm, 45 μm, 48 μm, or 50 μm, etc.
Specifically, the non-stick layer 2 is a thermal spraying layer, that is, the inorganic porous material powder is coated on the vessel base 1 by a thermal spraying method (such as plasma spraying, supersonic flame spraying or electric arc spraying), the operation is simple and convenient, the manufacturing cost is low, the surface quality of the non-stick layer 2 is easy to control, and the bonding strength between the non-stick layer 2 and the vessel base 1 is enhanced. Of course, the non-stick layer 2 may be a cold sprayed layer or a solid-phase sintered layer.
More specifically, taking plasma spraying as an example, the process method of the non-stick layer 2 is as follows: A. pretreating the surface of a vessel substrate; B. putting inorganic porous material powder of 200-500 meshes into a powder feeder; C. adjusting the powder feeding speed to be 10-40 g/min, the spraying distance to be 140-160 mm, the arc current to be 450-650A, the hydrogen pressure to be 0.4-0.9 MPa, the hydrogen flow to be 5-10L/min, the argon pressure to be 0.4-0.9 MPa and the argon flow to be 35-80L/min; D. the inorganic porous material powder is heated to be molten by the high-pressure plasma flame flow formed at the muzzle and then deposited on the surface of the vessel base body 1 to form the non-stick layer 2.
Preferably, the surface roughness of the non-stick layer 2 is 10 μm to 50 μm, and typically, but not limited thereto, the surface roughness of the non-stick layer 2 may be, for example, 10 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, or 50 μm, and the like. When the surface roughness is less than 10 μm, the micro surface structure of the non-stick layer 2 is affected, thereby reducing the non-stick property, and the cost of the cooking utensil is high; when the surface roughness is more than 50 μm, the friction between the food or the slice and the non-stick layer 2 is too large, resulting in an increase in stir-frying resistance, thereby reducing the non-stick property of the cooking appliance.
Taking a diatomite non-stick pan and a graphite non-stick pan as examples respectively, the comparison experiment of the non-stick life of the cooking utensil with different surface roughness refers to tables 3 and 4, the end point of the experiment is judged when two III levels appear continuously, the corresponding cycle number is taken as the basis of the non-stick life, and the specific experiment steps can refer to the non-stick pan acceleration simulation test program. Wherein the parameters of each set of examples in each table are identical except that the surface roughness of the non-stick layer is different; and the rest of the experimental conditions were identical.
TABLE 3
TABLE 4
As can be seen from the data in tables 3 and 4, as the roughness of the non-stick layer 2 increases gradually, the non-stick life of the non-stick layer 2 tends to increase first and then decrease, and the non-stick life of the non-stick layer 2 is affected by too large or too small roughness of the non-stick layer 2.
Further, the surface of the non-stick layer 2 needs to be subjected to sealing treatment to enhance the compactness of the non-stick layer 2, thereby enhancing the corrosion resistance and the non-stick performance of the cooking utensil; the blocking treatment should be performed by using a blocking agent having non-adhesiveness, such as a fluororesin blocking agent, an organosilicon blocking agent, etc., to prevent the non-adhesiveness of the non-adhesive layer 2 from being reduced.
Further, a priming layer 3 is arranged on one side of the surface of the vessel 1 facing the non-stick layer 2, and the priming layer 3 is arranged between the vessel 1 and the non-stick layer 2. The bonding strength between the non-stick layer 2 and the utensil 1 is further increased by arranging the priming layer 3, and the non-stick layer 2 is effectively prevented from falling off; the hardness of the cooking utensil can be improved, and the vessel 1 is prevented from deforming to damage the non-stick layer 2. In addition, the bottom layer 3 can also be used as an anticorrosive layer to enhance the corrosion resistance of the pan bottom.
In one embodiment, the primer layer 3 is a concave-convex structure 30 formed on the surface of the dish 1. Specifically, the concave-convex structure 30 may be a wavy line, a concave-convex point-shaped structure, a concave-convex pattern structure, or the like, and the concave-convex structure further enables the surface of the non-stick layer 2 to present a concave-convex surface, that is, the non-stick layer 2 maintains a uniform thickness and covers the concave-convex structure 30, so that the surface of the non-stick layer 2 presents a concave-convex surface, and the macroscopic contact area between the food material or the spatula and the non-stick layer 2 is reduced. Specifically, when the food is cooked, the food is only contacted with the convex part (such as the convex part 301) and separated from the concave part (such as the concave part 302), so that the adhesion phenomenon caused by the large-area contact of the food and the pan bottom is prevented, the wear resistance is enhanced, and the non-stick life is prolonged; similarly, when the turner is used for stirring food materials, the turner is only contacted with the convex part and separated from the concave part, so that the contact area of the turner and the non-stick layer 2 can be reduced, the turner is prevented from scratching or wearing the non-stick layer 2, and the wear resistance of the non-stick layer 2 is enhanced.
Further, the concave-convex structure 30 includes a plurality of protruding portions 301, the non-stick layer 2 of the protruding portions 301 may be removed by sanding, polishing, or the like, that is, the protruding portions 301 are exposed on the surface of the non-stick layer 2, so as to reliably protect the non-stick layer 2. The protrusions 301 may be distributed discretely, or may be distributed regularly or randomly irregularly.
Further, the area of the cross section of the single convex part 301 is 0.04-1 mm2E.g. 0.04mm2、0.05mm2、0.06mm2、0.08mm2、0.1mm2、0.14mm2、0.16mm2、0.18mm2、0.2mm2、0.25mm2、0.3mm2、0.4mm2、0.5mm2、0.6mm2、0.7mm2、0.8mm2、0.9mm2Or 1mm2Etc.; the distance d1 between two adjacent convex parts 301 is 0.08-0.4 mm, such as 0.08mm, 0.1mm, 0.12mm, 0.15mm, 0.18mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm or 0.4 mm.
By adjusting the dimensions of the projections 301, it is ensured that the desired wear resistance and permanent non-stick properties are achieved. When the cross section of the convex part 301 is too large, or the distance between two adjacent convex parts 301 is too small, the food material or the pancake turner is in large-area contact with the convex part 301, and adhesion or abrasion can still be caused; when the cross section of the protruding portion 301 is too small, or the distance between two adjacent protruding portions 301 is too large, the strength of the protruding portion 301 is too small or the stress is too large, which easily causes the whole protruding portion 301 to break and fall off.
Further, the width W1 of the cross section of the single boss 301 is 0.1-1 mm, that is, the edge of the cross section of the boss 301, the minimum dimension between any two points is not less than 0.1mm, and the maximum dimension between any two points is not more than 1mm, for example, the width of the cross section of the boss 301 may be 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, or the like. Within this range, the cross-sectional area of the boss 301 can be made appropriate, the overall strength of the boss 301 can be made satisfactory for use, and it is possible to avoid the occurrence of fracture of the boss 301 in a certain direction due to an excessively small dimension of the boss 301 in the cross-section in that direction.
Further, the total cross-sectional area of the plurality of protrusions 301 accounts for 40% to 60% of the cross-sectional area of the concave-convex structure, such as 40%, 45%, 50%, 55%, 60%, or the like. If the density of the convex parts is too small, the smooth groove areas among the convex parts cannot be protected, and the convex parts are easy to scratch, damage and fall off; if the density of the convex part is too large, the area of the groove area is small, the effect of enhancing the lasting non-adhesiveness is weak, and the groove is too narrow, so that the pollution dirt attached inside is not easy to clean, and the use experience is influenced.
In some embodiments, the concave-convex structure further includes a plurality of concave portions 302, and a height difference (height H1) between a highest portion of each convex portion 301 and a lowest portion of each concave portion 302 ranges from 0.02mm to 0.1mm, for example, the height difference may be 0.02mm, 0.03mm, 0.04mm, 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.09mm, or 0.1 mm. Within the range of the height difference, the function of prolonging the lasting non-stick service life can be achieved, and the problems of reduced non-stick property, large contact resistance with a slice and inconvenient use caused by too large roughness can be avoided.
In one of the embodiments, the primer layer 3 is a rough structure provided in the middle of the surface of the vessel 1. It is understood that the intermediate rough structure may be a rough surface formed by roughening, shot blasting, etc. the surface of the vessel 1, or an intermediate rough layer having a certain roughness formed between the vessel surface 1 and the non-stick layer 2 by sintering, spraying, anodizing, etc. The middle coarse structure can enhance the adhesion performance of the vessel 1, thereby increasing the bonding strength between the non-stick layer 2 and the vessel 1 and preventing the non-stick layer 2 from falling off. Specifically, the primer layer 3 is a high-hardness metal powder layer or a high-hardness alloy powder layer covering the surface of the vessel 1, that is, the primer layer 3 may be formed of a high-hardness metal powder or a high-hardness alloy powder uniformly covering the surface of the vessel 1, and the particle diameter of the high-hardness metal powder or the high-hardness alloy powder is 25 μm to 100 μm, for example, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, 50 μm, 55 μm, 60 μm, 65 μm, 70 μm, 75 μm, 80 μm, 85 μm, 90 μm, 95 μm, or 100 μm. When the particle diameter is less than 25 μm, the manufacturing cost is excessively high; when the particle size is larger than 100 μm, higher requirements are put on spraying equipment, the spraying difficulty is increased, the surface roughness of the primer layer 3 is also obviously increased, the uniformity and the surface roughness of the non-stick layer 2 are further influenced, and the non-stick performance is reduced.
Specifically, the primer layer 3 may be a thermal spray coating, that is, the primer layer 3 is formed on the surface of the vessel 1 by thermal spraying, such as plasma spraying, supersonic flame spraying, or arc spraying. The bottom layer 3 may be composed of iron and its alloy, zinc and its alloy, titanium and its alloy, chromium and its alloy, nickel and its alloy, cobalt and its alloy, copper and its alloy, zirconium and its alloy, yttrium and its alloy, molybdenum and its alloy, vanadium and its alloy, etc.
Specifically, when the surface of the dish 1 is an aluminum layer or an aluminum alloy layer, the primer layer 3 may also be an anodized layer, that is, the surface of the dish 1 should contain aluminum, and a thick and dense oxide film layer is formed on the surface of the dish 1 through anodization, so as to significantly change the corrosion resistance of the cooking utensil and improve the hardness and wear resistance of the cooking utensil. At this time, the primer layer 3 is directly a layer on the surface of the dish 1, that is, the surface of the dish 1 directly forms an intermediate rough structure, and the intermediate rough structure is anodized to be used as the primer layer 3. The intermediate rough structure can form a macro concave-convex structure on the surface of the vessel 1 by using methods such as die stamping, etching or casting, and the like, and a micro rough surface is manufactured on the surface of the vessel 1 by using methods such as embossing, etching, sand blasting, shot blasting and laser etching.
Preferably, the primer layer 3 of the present invention has a thickness of 30 to 300 μm, for example, the primer layer 3 has a thickness of 30, 50, 80, 100, 130, 150, 180, 200, 210, 250, 280, or 300 μm.
Within this thickness range, the primer layer 3 is conveniently processed, the cost of the cooking appliance is controlled, and a complete surface structure can be formed. That is, when the thickness is less than 30 μm, it is difficult to be technically realized; when the thickness is less than 300 μm, an increase in cost is caused, and an excessive internal stress of the primer layer 3 is caused, resulting in occurrence of damage such as chipping of the surface of the primer layer 3, thereby affecting the structure of the non-stick layer 2. The thickness of the bottom layer 3 can be slightly larger than that of the non-stick layer 2, so that the bottom layer 3 can separate the utensil 1 from the non-stick layer 2, and two sides of the bottom layer 3 can have strong enough binding force with the utensil 1 and the non-stick layer 2 respectively.
Preferably, the Rz value of the surface roughness (i.e., the roughness of the microscopically rough surface) of the primer layer 3 of the present invention is 10 μm to 50 μm, and for example, the surface roughness of the primer layer 3 may be 10 μm, 20 μm, 30 μm, 40 μm, or 50 μm. When the surface roughness is less than 10 μm, the process is difficult to realize, and the cost of the cooking utensil is high; when the surface roughness is more than 50 μm, uniformity and surface roughness of the non-stick layer 2 are affected, thereby reducing non-stick property of the cooking utensil.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (15)
1. A cooking appliance, comprising:
a vessel (1);
the non-stick layer (2) covers the surface of the vessel (1);
the non-stick layer (2) is an inorganic porous material layer or a self-lubricating material layer.
2. The cooking appliance according to claim 1, wherein the thickness of the non-stick layer (2) is between 30 μm and 300 μm.
3. The cooking appliance according to claim 1, wherein the non-stick layer (2) has a surface roughness of 10 μm to 50 μm.
4. The cooking appliance of claim 1, wherein the layer of inorganic porous material is a layer of diatomaceous earth or a layer of bentonite or a layer of zeolite.
5. The cooking appliance according to claim 1, wherein the layer of self-lubricating material is a graphite layer or a graphite fluoride layer or a molybdenum disulfide layer.
6. Cooking appliance according to any of claims 1 to 5, characterized in that the non-stick layer (2) is a thermal sprayed layer, a cold sprayed layer or a solid phase sintered layer.
7. Cooking appliance according to any of claims 1 to 5, further comprising a primer layer (3), said primer layer (3) being arranged between said vessel (1) and said non-stick layer (2).
8. The cooking utensil according to claim 7, wherein the bottom layer (3) is a concave-convex structure of the surface of the vessel (1), the concave-convex structure comprises a plurality of convex parts, and the area of the cross section of each convex part is 0.04-1 mm2；
The distance between two adjacent protrusions is 0.08-0.4 mm.
9. The cooking appliance according to claim 8, wherein a total cross-sectional area of the plurality of protrusions accounts for 40% to 60% of a cross-sectional area of the concavo-convex structure.
10. The cooking appliance according to claim 8, wherein the width of the cross section of the single protrusion is 0.1-1 mm.
11. The cooking utensil of claim 8, wherein the bottom layer (3) further comprises a plurality of concave portions, and the height difference between the highest position of each convex portion and the lowest position of each concave portion ranges from 0.02mm to 0.1 mm.
12. The cooking appliance according to claim 7, wherein the thickness of the primer layer (3) is 30 μm to 300 μm.
13. The cooking appliance according to claim 7, wherein the roughness of the primer layer (3) is 10 μm to 50 μm.
14. The cooking appliance according to claim 7, wherein the primer layer (3) is a layer of high hardness metal powder or a layer of high hardness alloy powder covering the surface of the vessel (1).
15. Cooking appliance according to claim 7, characterized in that the surface of the vessel (1) is a layer of aluminium or aluminium alloy and the primer layer (3) is an anodized layer.
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| CN202021245533.3U Active CN213551277U (en) | 2019-06-28 | 2020-06-28 | Cooking utensil |
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| CN202021222450.2U Active CN212815912U (en) | 2019-06-28 | 2020-06-28 | Cooking utensil |
| CN202010598714.2A Pending CN112137425A (en) | 2019-06-28 | 2020-06-28 | Container body and cooking utensil |
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| CN202021245516.XU Active CN212698558U (en) | 2019-06-28 | 2020-06-28 | Cooking utensil |
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| CN114305120A (en) * | 2021-12-20 | 2022-04-12 | 浙江百特厨具有限公司 | Cooking utensil and preparation method |
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| CN113180482B (en) * | 2021-04-13 | 2022-03-18 | 杭州九阳小家电有限公司 | Cooking container and manufacturing method thereof |
| CN113142975B (en) * | 2021-04-13 | 2022-02-01 | 杭州九阳小家电有限公司 | Cooking container and manufacturing method thereof |
| CN113307494A (en) * | 2021-05-13 | 2021-08-27 | 章益鹏 | Ceramic coating added with porous material and preparation method thereof |
| CN115142001A (en) * | 2021-09-08 | 2022-10-04 | 武汉苏泊尔炊具有限公司 | Non-stick coating, preparation method thereof and cookware comprising non-stick coating |
| CN114209203B (en) * | 2021-11-30 | 2023-01-13 | 爱仕达股份有限公司 | Cooking container and manufacturing method thereof |
| CN114052505B (en) * | 2021-12-17 | 2023-01-06 | 武汉苏泊尔炊具有限公司 | Non-stick cookware and method of making same |
| CN114041693B (en) * | 2021-12-17 | 2022-12-09 | 武汉苏泊尔炊具有限公司 | Cooker and method for manufacturing the same |
| CN114129060B (en) * | 2021-12-17 | 2023-05-16 | 武汉苏泊尔炊具有限公司 | Cooker and method for manufacturing the same |
| CN114231878A (en) * | 2021-12-17 | 2022-03-25 | 武汉苏泊尔炊具有限公司 | Spray coating material, preparation method thereof, coating and cooker comprising coating |
| CN114196269A (en) * | 2021-12-17 | 2022-03-18 | 武汉苏泊尔炊具有限公司 | Composite material, preparation method thereof and non-stick cookware |
| CN114587150B (en) * | 2022-03-02 | 2023-10-20 | 爱仕达股份有限公司 | Cooking utensil and preparation method thereof |
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| CN114605914A (en) * | 2022-03-29 | 2022-06-10 | 武汉苏泊尔炊具有限公司 | Modified ceramic coating, modified base oil, modified surface oil, composite coating and cooker |
| CN115399629B (en) * | 2022-09-28 | 2024-01-30 | 武汉苏泊尔炊具有限公司 | Non-stick cooker and preparation method thereof |
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| CN114305120A (en) * | 2021-12-20 | 2022-04-12 | 浙江百特厨具有限公司 | Cooking utensil and preparation method |
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| CN212698558U (en) | 2021-03-16 |
| CN212678952U (en) | 2021-03-12 |
| CN212698556U (en) | 2021-03-16 |
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| CN213097532U (en) | 2021-05-04 |
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| CN212698555U (en) | 2021-03-16 |
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