PVD (Physical Vapor Deposition) metal coating non-sticky vessel and non-sticky pan
By forming a roughened surface with micron-sized holes on the inner surface of the first metal layer of the non-stick cookware, and coating it with a PVD metal coating, combined with the use of an aluminum thermal conductive layer, the problem of high-temperature use of existing non-stick cookware is solved. The problem of easy peeling off of the anti-stick coating and the release of toxic gases has been eliminated, and a pot with high wear resistance, long-lasting non-stick effect and safe and healthy pots has been achieved.
Patent Information
- Application Number
- CN202322953374.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2023-05-11
- Filing Date
- 2023-11-02
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2033-11-02
AI Technical Summary
Existing non-stick pans are prone to peel off when used at high temperatures, and may release toxic gases when burned empty or stir-fried at high temperatures, resulting in food sticking and contamination problems.
A PVD metal-coated non-stick vessel is used, including a first metal layer and a second metal layer. The inner surface of the first metal layer is sandblasted to form a roughened surface with micron-sized holes, and a PVD metal coating is coated on it to form Porous oil-locking structure. An aluminum thermal conductive layer is set between the two layers of metal to heat evenly and extend the non-stick life.
It achieves high wear resistance and long-lasting non-stick effect. The pot can still achieve first-level non-stick after 5,000 wear-resistant tests. The non-stick life is extended by uniform heating, and it does not contain harmful heavy metals, making it safe and healthy.
Smart Images
Figure CN222367550U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of kitchenware, in particular to PVD metal-coated non-stick utensils and non-stick cookware. Background Art
[0002] The non-stick pans in the prior art are usually coated with a layer of anti-stick coating on the inner wall of the pan. The most commonly used coating material is Teflon, scientifically known as polytetrafluoroethylene, which solves the problem of sticking to the pan and brings some convenience to people's lives. However, the anti-stick coating on the inner wall of the pan is easy to fall off during use, especially during high-temperature stir-frying. If the non-stick pan is burned empty, it is more likely to cause the anti-stick coating to fall off. Although polytetrafluoroethylene itself is non-toxic, when the pan is in a high-temperature stir-frying or empty burning state, polytetrafluoroethylene will carbonize and crack, releasing trace amounts of toxic gases and substances, contaminating the food, thereby causing problems such as food sticking to the pan and accidental ingestion of chemical coatings.
[0003] On this basis, a non-stick pan has appeared in the prior art, which uses the lotus leaf effect to make an anti-stick structure on the inner wall of the pot. The anti-stick structure is a periodically distributed convex part or / and concave part on the inner wall, and the size of the convex part and the concave part is between a few microns and tens of microns. The inner wall surface of the non-stick pan becomes a rough surface with a roughness of micrometer level, and the contact surface between the cooked food and the inner wall surface of the non-stick pan becomes a composite contact surface. The concave areas between the convex parts of the anti-stick structure and the concave areas of the concave parts are adsorbed with gas, forming an air cushion layer, which effectively reduces the contact area between the cooked food and the inner wall surface of the non-stick pan, does not stick to the cooked food, and realizes physical anti-sticking and zero coating; even if the food is fried at high temperature and the pot is burned empty, the zero-coating non-stick pan does not release any toxic substances and gases, and will not pollute the cooked food and the kitchen environment, making cooking safer.
[0004] However, it is far from enough to apply this structure to the surface of a non-stick pan to form a physical non-stick layer. Because the non-stick pan needs to be heated when used, the air cushion layer formed in the recessed area recorded in the above scheme will be destroyed in the heating environment, thereby failing to achieve the purpose of physical non-stick.
[0005] In addition, if only the above-mentioned physical non-stick method is set on the surface of the pot body, it is not enough to achieve long-term non-stick. Because each time cooking is performed, the spatula needs to be rubbed against the surface of the pot repeatedly many times, then the long-term friction will wear out the physical non-stick layer, and thus the long-term non-stick effect cannot be achieved. This problem also needs to be solved urgently. Utility Model Content
[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the above-mentioned prior art and provide a PVD metal-coated non-stick vessel and non-stick cookware which has high wear resistance and can achieve long-lasting non-stick properties.
[0007] In order to achieve the above-mentioned purpose, the utility model provides a PVD metal-coated non-stick vessel, comprising a first metal layer and a second metal layer, wherein the first metal layer is configured as an inner layer; the inner surface of the first metal layer is constructed as a roughened surface with micron-sized holes, and the roughened surface is formed by sandblasting, preferably by multi-stage sandblasting, and the roughened surface can also be made by other methods; wherein the roughened surface is coated with a PVD metal coating, and the PVD metal coating is distributed with micro-nano-sized holes to form a porous oil-locking structure; the first metal layer and the second metal layer are composited into one by a heat-conducting layer, and the heat-conducting layer has a higher thermal conductivity than the first metal layer to prevent the first metal layer from being locally overheated and damaging the PVD metal coating.
[0008] It should be noted that the depth and width of micron-scale holes are all in the micron level. The holes in the roughened surface formed after sandblasting are mainly micron-scale holes, and it does not exclude the possibility of a small number of holes of other sizes. Micro-nano-scale holes are formed on the basis of micron-scale holes, that is, they are formed by PVD metal coating deposition and covering on micron-scale holes. After the micron-scale holes are covered, the smaller micron-scale holes become nano-scale holes, and the larger micron-scale holes remain as micron-scale holes, thus forming a combination of micro-nano-scale holes. In the present utility model, holes with a pore size of less than 100μm are defined as micron-scale holes, and holes with a pore size of less than 100nm are defined as nano-scale holes. Micro-nano-scale holes are holes with a pore size of more than 100nm and less than 100μm.
[0009] The above technical solution can be further improved through the following measures.
[0010] In a preferred embodiment, the first metal layer is a stainless steel layer, the heat conductive layer is an aluminum layer, and the second metal layer is a stainless steel layer. The inner surface has a plurality of etched grooves arranged in an array, and the roughened surface covers the etched grooves. The PVD metal coating is a vapor-deposited multi-metal coating containing nitrogen, carbon, titanium, chromium and aluminum.
[0011] In another embodiment, the PVD metal coating is a vapor-deposited multi-metal coating comprising nitrogen, carbon, oxygen, titanium, chromium, aluminum, copper and iron.
[0012] In one embodiment, the PVD metal coating is a vapor-deposited multi-metal coating comprising nitrides and / or carbides of titanium, chromium, and aluminum. The PVD metal coating is a vapor-deposited multi-metal coating comprising titanium nitride, chromium nitride, chromium carbide, and aluminum nitride. The PVD metal coating is a vapor-deposited multi-metal coating containing 1 to 15 wt% copper. The titanium content is 1 to 10 wt%. The inner surface of the PVD metal coating is a polished surface. The hardness of the PVD metal coating ranges from HV1100 to 3500. The thickness of the PVD metal coating ranges from 1.0 to 6 μm. The orifice diameter of the micro-nano pores is 0.1 to 3 μm, and the depth of the micro-nano pores is 0.1 to 1 μm.
[0013] Preferably, the wear resistance of the PVD metal coating is measured as: after 5000 wear tests in accordance with the standard "GB / T32095.2-2015 Non-stick Surface Performance and Test Specifications for Household Food Metal Cooking Utensils Part 2: Non-stick and Wear Resistance Test Specifications", an oil-free frying egg test can reach level one non-stick.
[0014] The utility model also provides a PVD metal-coated non-stick cookware, which is configured as the above-mentioned PVD metal-coated non-stick vessel.
[0015] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:
[0016] The PVD metal-coated non-stick vessel and PVD metal-coated non-stick cookware of the utility model are further deposited on the roughened surface of the inner metal layer, and the thickness of the PVD metal-coated film is controlled, so that the micron-level holes on the roughened surface can be turned into micro-nano-level holes, so that the inner metal surface has a good non-stick effect. However, during use, the bottom of the cookware is prone to local overheating and damages the PVD metal coating, so that the cookware loses its non-stick performance. In order to solve this technical problem, the cookware of the utility model adopts an aluminum heat-conducting layer between the two layers of metal. The aluminum heat-conducting layer can make the bottom of the cookware heated more evenly, thereby extending the non-stick life of the cookware.
[0017] In summary, the non-stick utensil and non-stick pot of the utility model have excellent non-stick performance, and after 5000 times of wear resistance test, the non-stick level can still reach the first-class non-stick level. In addition, since the bottom of the pot of the utility model is heated evenly, the life of the non-stick performance is further extended. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present utility model, rather than limiting the present utility model.
[0019] Figure 1 is a cross-sectional view of the non-stick container in Example 1.
[0020] Figure 2 yes Figure 1 Magnified view at A in the middle.
[0021] Figure 3 It is a schematic diagram of the non-stick structure of the non-stick container in Example 1.
[0022] Figure 4 This is a surface morphology image of the non-stick vessel in Example 1 (500 times).
[0023] Figure 5 This is a surface morphology image of the non-stick dish in Example 1 (1000 times).
[0024] Figure 6 This is a surface morphology image of the non-stick dish in Example 1 (5000 times).
[0025] Description of reference numerals:
[0026] 100. Non-stick cookware (non-stick utensil); 101. First metal layer; 102. Second metal layer; 103. Heat-conducting layer; 104. PVD metal coating. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings. The components of the embodiments of the utility model described and shown in the drawings herein can be arranged and designed in various different configurations. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0029] Unless otherwise defined, the technical terms or scientific terms used in this patent document shall be the common meanings understood by people with ordinary skills in the field to which the utility model belongs. The words "first", "second" and similar words used in the utility model patent specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one", "one" or "the" do not indicate a quantity limit, but indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", "far", "near" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. It is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.
[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0031] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the features of the following embodiments can be combined with each other.
[0032] Embodiment 1:
[0033] like Figures 1 to 6The PVD metal coating 104 non-stick vessel 100 shown includes a first metal layer 101 and a second metal layer 102, wherein the first metal layer 101 is configured as an inner layer, and the inner surface of the first metal layer 101 is constructed as a roughened surface with micron-scale holes, and the roughened surface is formed by sandblasting, preferably by multi-stage sandblasting; wherein the roughened surface is coated with a PVD metal coating 104, and micro-nano-scale holes are distributed on the PVD metal coating 104 to form a porous oil-locking structure; the first metal layer 101 and the second metal layer 102 are composited into one by a heat-conducting layer 103, and the heat-conducting layer 103 has a higher thermal conductivity than the first metal layer 101 to prevent the first metal layer 101 from being locally overheated and damaging the PVD metal coating 104.
[0034] In order to ensure the thickness of the PVD metal coating 104, the PVD metal coating 104 is implemented by tool plating, including but not limited to magnetron sputtering, multi-arc ion plating, chemical vapor deposition, ion beam deposition, pulsed laser deposition, etc.
[0035] It should be noted that the depth and width of the micron-scale holes are all in the micron level. The holes in the roughened surface formed after sandblasting are mainly micron-scale holes, and it does not exclude the possibility of a small number of holes of other sizes. The micro-nano-scale holes are formed on the basis of the micron-scale holes, that is, they are formed by the deposition of the PVD metal coating 104 and covering the micron-scale holes. After the micron-scale holes are covered, the smaller micron-scale holes become nano-scale holes, and the larger micron-scale holes are still retained as micron-scale holes, thus forming a combination of micro-nano-scale holes. In the present utility model, holes with an aperture or opening less than 100μm are defined as micron-scale holes, and holes with an aperture or opening less than 100nm are defined as nano-scale holes. Holes with an aperture between 100nm-500nm are micro-nano-scale holes. The specific size of the micron-scale pores can be measured by Zeiss's microscope Axioplan 2imaging (model), and the size of the nano-scale pores can be measured by the scanning electron microscope Nova 400NanoSEM (model) of FEI (manufacturer) in the United States. It should be pointed out that in the present invention, the formation of micro-nano pores on the roughened surface means that the pores on the roughened surface are mainly micro-nano, but the existence of a small number of pores of other sizes is not excluded. Generally, the proportion of pores of other sizes does not exceed 30%.
[0036] In a preferred embodiment, in order to further improve the service life of the PVD coating 104, the non-stick vessel adopts a steel-aluminum-steel composite structure, wherein the first metal layer 101 is a stainless steel layer, the heat conductive layer 103 is an aluminum layer, and the second metal layer 102 is a stainless steel layer, such as SUS430. The selected stainless steel is preferably food grade, especially the first metal layer 101, such as SUS304. The second metal layer 102 mainly has its protective function. In addition to stainless steel, other metals can also be selected, such as titanium alloys. In order to further improve the non-stick effect of the inner surface, a plurality of etched grooves arranged in an array can be etched on the inner surface first, and then sandblasting can be performed. The grooves can be made using laser etching technology, so that the roughened surface covers the etched grooves. The grooves arranged in an array can form a lotus leaf structure inside the non-stick vessel 100, thereby improving the non-stick effect.
[0037] In this embodiment, the micro-nano pores can shrink and expand as the heating temperature changes. When animal fats or vegetable oils are used to heat the pot, the micro-nano pores expand as the temperature of the pot body rises, and shrink as the temperature of the pot body drops. It is further explained that when the user heats the pot body, the micro-nano pores expand to facilitate the entry and exit of grease. When the heating of the pot body stops, the temperature of the pot body gradually cools down, the micro-nano pores shrink, and the grease entering the holes is locked inside, thereby achieving the oil locking function and maintaining the non-stick performance of the pot surface. In this embodiment, the micro-nano pores with a pore size or opening width in the range of 100 to 500nm have good oil storage and oil locking functions, thereby improving the non-stick effect of the pot surface. For specific views of the micro-nano pores, please refer to Figure 3 shown.
[0038] In order to further improve the anti-sticking performance and service life of the PVD metal coating 104, the PVD metal coating 104 is a vapor-deposited multi-metal coating containing nitrogen, carbon, oxygen, titanium, chromium, aluminum, copper and iron. Specifically, the PVD metal coating contains nitrides and / or carbides of titanium, chromium and aluminum, such as titanium nitride, titanium carbide, chromium nitride, chromium carbide and aluminum nitride. The meaning of this and / or is that it includes at least one of the nitrides or carbides of three metal elements titanium, chromium and aluminum, for example, it can have titanium nitride and carbide at the same time, or it can only include aluminum nitride. That is, the PVD metal coating in the present invention is a composition formed by the symbiosis of ternary metal titanium, chromium, aluminum and nitrogen and carbon, and the composition can significantly reduce the surface energy of the PVD metal coating. After measurement, the surface energy of the PVD metal coating is below 35 dynes, which has a good non-stick effect. And the PVD metal coating has extremely high hardness and wear resistance, thereby improving its service life. In addition, the iron element exists in the form of iron oxide, which can effectively prevent the inner surface of the vessel from discoloring.
[0039] It should be noted that the titanium element contained in the PVD metal coating can exist in the form of titanium nitride and titanium carbide, or it can exist only in the form of titanium nitride. However, after repeated measurements, the applicant found that when the content of titanium element is between 1 and 10wt%, it can effectively reduce the surface energy, thereby improving the anti-sticking effect. Too much or too little titanium element will reduce the anti-sticking effect. Preferably, the content of titanium element is 3 to 6wt%, specifically, the content of titanium element can be 3wt%, 4wt%, 5wt% and 6wt%. In addition, since the carbon element contained in the PVD metal coating can improve its wear resistance, the aluminum element can reduce its surface energy, and the aluminum nitride is in a ceramic state, thereby improving the anti-sticking effect, the chromium element contained therein can not only reduce the surface energy, but also improve the corrosion resistance and prevent the precipitation of heavy metals.
[0040] On the basis of the above technical content, technicians in the relevant field can adjust the proportions of various components according to actual needs, and can also add other metal or non-metal components on the basis of the above multi-metal. For example, in another embodiment, the PVD metal coating 104 is a vapor-deposited multi-metal coating containing titanium, aluminum, chromium, nitrogen and carbon. That is, a composition formed by the symbiosis of three metal elements of titanium, aluminum and chromium and nitrogen and carbon. After testing, the symbiotic composition of titanium, aluminum, chromium and nitrogen and carbon has a lower surface energy, but its hardness and wear resistance are extremely excellent, so that the utility model has good anti-sticking effect, high hardness, good wear resistance and long service life.
[0041] In this embodiment, the PVD metal coating 104 is a vapor-deposited multi-metal coating containing 1 to 15 wt% copper, preferably 3 to 10 wt% copper is contained in the PVD metal coating 104, and more preferably 3 to 6 wt% copper is contained in the PVD metal coating 104. Specifically, the PVD metal coating 104 contains 5 wt% copper. Since the PVD metal coating 104 contains copper, the non-stick vessel 100 can have an antibacterial effect and the non-stick effect of the PVD metal coating is also improved.
[0042] The inner surface of the PVD metal coating 104 is a polished surface. The hardness of the PVD metal coating 104 ranges from HV1000 to 5000, preferably from HV1100 to 3500, and more preferably from HV2000 to 3500. The thickness of the PVD metal coating 104 ranges from 1.0 to 6 μm, preferably from 2 to 5 μm, and specifically from 3 μm. In one embodiment, the aperture diameter of the micro-nano hole is 0.1 to 3 μm, and the depth of the micro-nano hole is 0.1 to 1 μm.
[0043] In this embodiment, the wear resistance of the PVD metal coating 104 is measured as follows: after 5000 wear tests according to the standard "GB / T32095.2-2015 Non-stick surface performance and test specifications for household food metal cooking utensils Part 2: Non-stick and wear resistance test specifications", the oil-free frying egg test can reach level 1 non-stick. Level I means that the egg can be taken out without damage and without leaving residue with a plastic spatula. Level II means that the egg cannot be taken out without damage with a plastic spatula, but the residue can be removed by wiping lightly with a wet sponge or rag. The non-stick performance of the non-stick utensil 100 in the utility model is level I.
[0044] The utility model also provides a PVD metal coating 104 non-stick cookware 100, which is the above-mentioned non-stick vessel 100. The non-stick cookware can be used as a frying pan, and can also be used as an inner pot of an electric rice cooker, a voltage cooker, etc.
[0045] From the above description, it can be seen that the utility model has the following beneficial effects:
[0046] The PVD metal coating 104 non-stick vessel 100 and the PVD metal coating 104 non-stick cookware 100 of the utility model are further deposited on the roughened surface of the inner metal layer, and the thickness of the PVD metal coating 104 is controlled, so that the micron-level holes on the roughened surface can be turned into micro-nano-level holes, so that the inner metal surface has a good non-stick effect. However, during use, the bottom of the cookware is prone to local overheating and damages the PVD metal coating 104, so that the cookware loses its non-stick performance. In order to solve this technical problem, the cookware of the utility model adopts an aluminum heat-conducting layer 103 between two layers of metal. The aluminum heat-conducting layer 103 can make the bottom of the cookware heated more evenly, thereby extending the non-stick life of the cookware.
[0047] In summary, the non-stick utensil (non-stick cookware) 100 of the present invention has excellent non-stick performance. After 5000 times of wear resistance test, its non-stick level can still reach the first-class non-stick level. In addition, the bottom of the cookware of the present invention is evenly heated, thereby further extending the life of the non-stick performance. In addition, the materials used in the present invention meet the requirements of food hygiene indicators, do not contain heavy metal elements harmful to the human body, and are safe and healthy.
[0048] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A PVD metal-coated non-stick vessel, comprising a first metal layer and a second metal layer, wherein the first metal layer is configured as an inner layer; characterized in that: The inner surface of the first metal layer is configured as a roughened surface having micron-sized holes; The roughened surface is coated with a PVD metal coating, and micro-nanoscale holes are distributed on the PVD metal coating to form a porous oil-locking structure; The first metal layer and the second metal layer are integrated together by a heat-conducting layer, and the heat-conducting layer has a higher thermal conductivity than the first metal layer to prevent the first metal layer from being locally overheated and damaging the PVD metal coating.
2. The PVD metal-coated non-stick vessel according to claim 1, characterized in that: The first metal layer is a stainless steel layer, the heat conducting layer is an aluminum layer, and the second metal layer is a stainless steel layer.
3. The PVD metal-coated non-stick vessel according to claim 1 or 2, characterized in that: The inner surface has a plurality of etching grooves arranged in an array, and the roughened surface covers the etching grooves.
4. The PVD metal-coated non-stick vessel according to claim 1, characterized in that: The PVD metal coating is a vapor-deposited multi-metal coating containing nitrogen, carbon, titanium, chromium and aluminum.
5. The PVD metal-coated non-stick vessel according to claim 1, characterized in that: The PVD metal coating is a vapor-deposited multi-metal coating containing nitrogen, carbon, oxygen, titanium, chromium, aluminum, copper and iron.
6. The PVD metal-coated non-stick vessel according to claim 4 or 5, characterized in that: The PVD metal coating is a vapor-deposited multi-metal coating containing nitrides and / or carbides of titanium, chromium, and aluminum.
7. The PVD metal-coated non-stick vessel according to claim 6, characterized in that: The PVD metal coating is a vapor-deposited multi-element metal coating containing titanium nitride, chromium nitride, chromium carbide and aluminum nitride.
8. The PVD metal-coated non-stick vessel according to claim 4 or 5, characterized in that: The PVD metal coating is a vapor-deposited multi-element metal coating containing 1 to 15 wt % copper.
9. The PVD metal-coated non-stick vessel according to claim 4 or 5, characterized in that: The PVD metal coating is a vapor-deposited multi-element metal coating containing 1-10 wt % titanium.
10. The PVD metal-coated non-stick vessel according to claim 5, characterized in that: The PVD metal coating is a vapor-deposited multi-element metal coating containing iron oxide.
11. The PVD metal-coated non-stick vessel according to claim 1, characterized in that: The hardness range of the PVD metal coating is HV1100-3500.
12. The PVD metal-coated non-stick vessel according to claim 1, characterized in that: The thickness of the PVD metal coating is in the range of 1.0 to 6 μm.
13. The PVD metal-coated non-stick vessel according to claim 1, characterized in that: The wear resistance of the PVD metal coating was measured to be: after 5000 wear tests in accordance with the standard "GB / T32095.2-2015 Non-stick Surface Performance and Test Specifications for Household Food Metal Cooking Utensils Part 2: Non-stick and Wear Resistance Test Specifications", the oil-free frying egg test can reach level one non-stick.
14. A PVD metal-coated non-stick cookware, characterized in that: The device is configured as the PVD metal-coated non-stick vessel according to any one of claims 1 to 13.