CN107510351B - Cookware and preparation method thereof - Google Patents
Cookware and preparation method thereof Download PDFInfo
- Publication number
- CN107510351B CN107510351B CN201610443171.0A CN201610443171A CN107510351B CN 107510351 B CN107510351 B CN 107510351B CN 201610443171 A CN201610443171 A CN 201610443171A CN 107510351 B CN107510351 B CN 107510351B
- Authority
- CN
- China
- Prior art keywords
- coating
- range
- cookware
- temperature
- magnetic conductive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- A47J27/002—Construction of cooking-vessels; Methods or processes of manufacturing specially adapted for cooking-vessels
-
- 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
-
- 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
- A47J36/04—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay the materials being non-metallic
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cookers (AREA)
Abstract
The embodiment of the invention provides a cookware and a preparation method thereof, wherein the cookware comprises a cookware body, the cookware body is made of a magnetic conductive material, and the thickness of the bottom wall of the cookware body is within the range of 0.5mm to.2.0 mm; the magnetic conduction coating is at least attached to the outer surface of the bottom wall of the cookware body and is made of ferromagnetic materials, nickel magnetic materials or cobalt magnetic materials. This scheme prepares the magnetic conduction coating on the diapire of pan body or diapire and the surface of lateral wall, so that can utilize the magnetic conduction coating to change the vibrations mode of pan body under alternating electromagnetic field in order effectively to reduce or consume the vibrations noise of pan body in the electromagnetic heating in-process, in addition still can set up anti rust coating outside the magnetic conduction coating in order to protect the magnetic conduction coating, thereby can avoid the magnetic conduction coating to rust and drop or the functional failure scheduling problem, and then can effectively reduce the noise of pan body in the electromagnetic heating in-process, can protect the magnetic conduction coating effectively for a long time again, so that the magnetic conduction coating can work effectively for a long time.
Description
Technical Field
The invention relates to the technical field of cooking utensils, in particular to a pot and a preparation method of the pot.
Background
The induction cooker is a household electromagnetic heating device which is widely applied, and is used for cooking dishes and often boiling water or hot pot with the induction cooker. The stock pot of boiling water or boiling hot pot usefulness is generally made by 430 stainless steel, when heating the stock pot with the electromagnetism stove, because the molecular vibration that can arouse the stock pot on the magnetic field acts on the stock pot for the stock pot produces great noise, thereby influences user's experience.
Therefore, how to provide a pot capable of reducing noise generated during electromagnetic heating and a manufacturing method thereof become a technical problem to be solved urgently at present.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
Therefore, the invention aims to provide a cooker with low noise in electromagnetic heating.
Another object of the present invention is to provide a method for manufacturing the above mentioned pot.
To achieve at least one of the above objects, an embodiment of a first aspect of the present invention provides a pot, including: the cookware body is made of a magnetic conductive material, and the thickness of the bottom wall of the cookware body is within the range of 0.5mm to 2.0 mm; the magnetic conduction coating is at least attached to the outer surface of the bottom wall of the cookware body and is made of ferromagnetic materials, nickel magnetic materials or cobalt magnetic materials.
According to the cookware provided by the embodiment of the first aspect of the invention, the cookware body is made of magnetic conductive material, such as 430 stainless steel or cast iron, and preferably the cookware body is integrally cast or stamped by the magnetic conductive material, so that the manufacturing process of the cookware body can be simplified. And set up the magnetic conduction coating of being made by ferromagnetic material, nickel magnetic material or cobalt magnetic material on the surface of the diapire at the pan body to usable this magnetic conduction coating changes the vibrations mode of pan body under the alternating electromagnetic field, with the vibrations noise of effective reduction or consumption pan body in the electromagnetic heating in-process. And research shows that the noise reduction effect is best when the thickness of the bottom wall of the cooker body is within the range of 0.5mm to 2.0mm, so that the noise emitted by the cooker body during electromagnetic heating can be greatly reduced, the noise reduction effect is more obvious, and specifically, the noise can be reduced by about 5dB (decibel) to 10dB by arranging the magnetic conductive coating.
Preferably, the magnetic conductive coating is made of magnetic conductive metal or oxide of magnetic conductive metal alloy, specifically, for example, made of iron or iron alloy or oxide of iron alloy, nickel or nickel alloy or oxide of nickel alloy or made of wire or powder of cobalt or cobalt alloy or oxide of cobalt or cobalt alloy, wherein the wire has low cost and is easy to feed in the spraying process, so that the preparation cost of the magnetic conductive coating can be reduced.
In the above technical solution, preferably, of course, the magnetically conductive coating may also be formed on an outer surface of the sidewall of the pot.
In the above technical solution, preferably, the magnetic conductive coating is made of a ferromagnetic material, and a porosity of the magnetic conductive coating is in a range of 10% to 15%.
In the technical scheme, the magnetic conductive coating made of the ferromagnetic material can change the vibration mode of the cooker body under the high-frequency alternating electromagnetic field to the maximum extent, so that the vibration noise of the cooker body in the electromagnetic heating process is effectively reduced or consumed, and the cost is low. Meanwhile, researches show that the ferromagnetic magnetic conductive coating with the porosity of 10-15% has the best noise reduction effect, and particularly, the porosity can be obtained by controlling the spraying process parameters of the magnetic conductive coating.
In the above technical solution, preferably, the magnetic conductive coating is made of a ferromagnetic material, and a thickness of the magnetic conductive coating is in a range of 50 μm to 300 μm.
In the technical scheme, the degree of the magnetic conductive coating is in the range of 50-300 μm, if the thickness of the ferromagnetic magnetic conductive coating is too small, the noise of the cookware cannot be effectively reduced, and if the thickness of the ferromagnetic coating is too large, not only higher requirements on the rust prevention function are provided, but also the anti-falling performance is deteriorated.
In the above technical solution, preferably, the pot further includes: and the antirust coating is arranged on the outer surface of the magnetic conduction coating, wherein the outer surface of the magnetic conduction coating is a surface of the magnetic conduction coating, which is far away from the cookware body.
In this technical scheme, when the magnetic conduction coating is made by ferromagnetic material, because iron has characteristics such as easy corrosion easily rusts, therefore can set up one deck rust-resistant, waterproof antirust coating outside the magnetic conduction coating to usable this antirust coating advances shape rust-resistant, waterproof protection to the magnetic conduction coating on the pan body, thereby can prevent that the magnetic conduction coating from reacting with solution such as water, acid or alkali, and make the magnetic conduction coating surface take place to corrode and produce the condition emergence of a large amount of iron rust, and then can avoid appearing the magnetic conduction coating and drop or problem such as functional failure. Therefore, the one-layer high-temperature-resistant and antirust coating is prepared on the magnetic conduction coating of the cookware body, the magnetic conduction coating can be protected for a long time and can be ensured to be normally used for a long time (1-2 years) without rusting, so that the cookware body containing the magnetic conduction coating and the high-temperature-resistant and antirust coating can effectively reduce the noise of electromagnetic heating and can effectively protect the magnetic conduction coating for a long time, and the magnetic conduction coating can work stably and effectively for a long time. Wherein the high temperature resistance in the antirust coating is preferably in the temperature range of 400 ℃ to 700 ℃.
Preferably, the anti-rust coating is formed by spraying an anti-rust paint on the magnetic conductive coating, and in addition, the anti-rust coating can also be formed by spraying metal powder or metal wire on the magnetic conductive coating, and the anti-rust metal material can be stainless steel or aluminum alloy. However, the antirust coating of the present invention is preferably formed by spraying antirust paint, because the method for forming the antirust coating has the advantages of low cost, easy processing, etc. compared with the method for forming the antirust coating by spraying metal powder or wire on the magnetic conductive coating. Specifically, the antirust paint can be sprayed on the magnetic conductive coating by an air gun at normal temperature, or can be directly brushed on the magnetic conductive coating by a brush and the like, the antirust coating made of metal powder or wire materials needs to be sprayed on the magnetic conductive coating after the metal is melted at high temperature by adopting an electric arc spraying process, and the process complexity and the cost of the electric arc spraying are obviously higher than those of the air gun spraying.
In the above technical scheme, preferably, the antirust coating is an inorganic silicon high-temperature-resistant paint layer, an organic silicon high-temperature-resistant paint layer or a ceramic layer.
In the technical scheme, the inorganic silicon high-temperature paint, the organic silicon high-temperature paint and the ceramic have the advantages of high temperature resistance, rust prevention and the like, so that the magnetic conduction layer can be effectively and reliably protected in a high-temperature rust prevention mode.
In the above technical solution, preferably, the thickness of the rust inhibitive coating is in the range of 30 μm to 100 μm.
In this technical scheme, anti rust coating is difficult too thick, because can increase the cost like this and can reduce the electromagnetic heating efficiency of pan body, on the other hand anti rust coating is also difficult too thin, because can not form rust protection to the magnetic conduction coating effectively like this, therefore the experiment shows that anti rust coating's thickness is when 30 mu m to 100 mu m's within range, can form effective protection to the magnetic conduction coating and can not make anti rust coating's cost too high again, simultaneously, the anti rust coating of this kind of thickness does not basically have the influence to the magnetic conductivity of pan body.
An embodiment of a second aspect of the present invention provides a method for manufacturing a pot, which is used for manufacturing the pot provided in any one of the embodiments of the first aspect, wherein the method for manufacturing a pot includes: preparing the magnetic conductive material into a pot body in a stamping or casting mode, wherein the thickness of the bottom wall of the pot body is in the range of 0.5mm to 2.0 mm; and forming a magnetic conductive coating on at least the outer surface of the bottom wall of the cookware body by utilizing an electric arc spraying process, wherein the magnetic conductive coating is made of a ferromagnetic material, a nickel magnetic material or a cobalt magnetic material.
According to the manufacturing method of the cookware provided by the embodiment of the second aspect of the invention, the cookware body is made of the magnetic conductive material by stamping or casting so as to enable the cookware body to be used for electromagnetic heating, wherein preferably, the cookware body is made of magnetic conductive stainless steel such as 430 stainless steel or cast iron, and preferably, the cookware body is integrally cast or stamped by the magnetic conductive material, and then, the magnetic conductive coating can be formed on the outer surface of the bottom wall of the cookware body or the outer surface of the whole cookware body by using an electric arc spraying process, so that the vibration mode of the cookware body under an alternating electromagnetic field can be changed by using the magnetic conductive coating, and the vibration noise of the cookware body in the electromagnetic heating process can be effectively reduced or consumed. Moreover, researches show that the thickness of the bottom wall of the cooker body is in the range of 0.5mm to 2.0mm, so that the noise emitted by the cooker body during electromagnetic heating can be reduced most effectively, the noise reduction effect is more obvious, and particularly, the noise can be reduced by about 5dB to 10 dB.
Preferably, the magnetic conductive coating is made of magnetic conductive metal or oxide of magnetic conductive metal alloy, specifically, for example, made of iron or iron alloy or oxide of iron alloy, nickel or nickel alloy or oxide of nickel alloy or made of wire or powder of cobalt or cobalt alloy or oxide of cobalt or cobalt alloy, wherein the wire has low cost and is easy to feed in the spraying process, so that the preparation cost of the magnetic conductive coating can be reduced. Meanwhile, the porosity inside the magnetic conductive coating can also absorb and consume vibration energy of partial noise, so that the noise of the cookware body in the electromagnetic heating process can be further remarkably reduced.
In the above technical solution, preferably, the preparation method of the pot further includes: spraying an antirust coating on the outer surface of the magnetic conductive coating at normal temperature to form an antirust coating, wherein the magnetic conductive coating is a ferromagnetic magnetic conductive coating, and the porosity of the magnetic conductive coating is 10-15%; drying the antirust coating at normal temperature for the first time; and baking the dried antirust coating within a preset temperature range for a second time.
In this technical scheme, preferably, when the magnetic conduction coating is made of ferromagnetic material, because iron has the characteristics of being easy to corrode and rust, etc., an antirust and waterproof antirust coating can be arranged outside the magnetic conduction coating, so that the magnetic conduction coating on the cookware body can be subjected to shape-entering antirust and waterproof protection by using the antirust coating, and the magnetic conduction coating can be prevented from reacting with solutions such as water, acid or alkali, etc., so that the surface of the magnetic conduction coating is corroded and a large amount of iron rust is generated, and the problems of falling off or functional failure of the magnetic conduction coating can be avoided. Therefore, the one-layer high-temperature-resistant and antirust coating is prepared on the magnetic conduction coating of the cookware body, the magnetic conduction coating can be protected for a long time and can be ensured to be normally used for a long time (1-2 years) without rusting, so that the cookware body containing the magnetic conduction coating and the high-temperature-resistant and antirust coating can effectively reduce the noise of electromagnetic heating and can effectively protect the magnetic conduction coating for a long time, and the magnetic conduction coating can work stably and effectively for a long time. The high temperature resistance in the antirust coating is the temperature within the range of 400 ℃ to 700 ℃, and the normal temperature value is room temperature, generally about 25 ℃, specifically, the room temperatures in different regions and different seasons are different, but generally more than or equal to 0 ℃ and less than or equal to 40 ℃.
The magnetic conductive coating is coated with an antirust coating, the antirust coating can be formed by spraying metal powder or metal wires on the magnetic conductive coating, and the antirust metal material can be stainless steel or aluminum alloy. However, the antirust coating of the present invention is preferably sprayed with the antirust paint, because the method for forming the antirust coating has the advantages of low cost, easy processing, etc. compared with the method for spraying metal powder or wire material on the magnetic conductive coating to form the antirust coating, specifically, the antirust coating can be sprayed on the magnetic conductive coating by using an air gun at normal temperature, or the antirust coating can be directly brushed on the magnetic conductive coating by using a brush, etc., and then naturally dried at room temperature, and then baked and cured to firmly attach the antirust coating outside the magnetic conductive coating, so as to prevent the antirust coating from falling off, whereas the antirust coating made of metal generally needs to be melted at high temperature by an electric arc spraying process and then sprayed on the magnetic conductive coating, and the process complexity and the use complexity of the electric arc spraying are obviously higher than those of the air gun spraying or brush brushing.
In the above technical solution, preferably, the antirust coating is an organosilicon high temperature resistant paint layer, the first time is in a range of 30min to 45min when the organosilicon high temperature resistant paint layer is dried, the preset temperature range is in a range of 250 ℃ to 300 ℃ when the organosilicon high temperature resistant paint layer is baked, and the second time is in a range of 15min to 30 min.
In this technical scheme, usable organosilicon high temperature resistant paint layer acts as antirust coating, because organosilicon high temperature resistant paint has certain high temperature resistance, and be difficult for reacting with solution such as water, acid or alkali and lead to the magnetic conduction coating surface to corrode and produce a large amount of iron rust, then the magnetic conduction coating drops or problem such as function inefficacy appears, thereby can carry out long-term protection to the magnetic conduction coating through preparing one deck organosilicon high temperature resistant paint layer on the magnetic conduction coating, guarantee that the magnetic conduction coating can normally use (1 ~ 2 years) for a long time and not rust. Meanwhile, the stainless steel cooker body containing the magnetic conductive coating and the organic silicon high-temperature resistant paint layer can effectively reduce the electromagnetic heating noise of the cooker body and can effectively ensure that the magnetic conductive coating can work stably for a long time. Wherein, preferably, the organosilicon high temperature resistant paint layer is composed of organic resin, heat-resistant pigment, auxiliary agent, solvent and the like.
Preferably, when the antirust coating is an organosilicon high-temperature-resistant paint layer, the thickness of the organosilicon high-temperature-resistant paint layer is within the range of 50-80 μm, the organosilicon high-temperature-resistant paint layer is dried by natural air drying at room temperature, the air drying time is within the range of 30-45 min, the baking temperature for baking and curing the organosilicon high-temperature-resistant paint layer subjected to normal-temperature air drying is within the range of 250-300 ℃, and the baking time is within the range of 15-30 min.
In the technical scheme, the formed organic silicon high-temperature-resistant paint layer has good adhesion performance and good flatness by drying the organic silicon high-temperature-resistant paint within the time range and baking the organic silicon high-temperature-resistant paint within the time and temperature ranges.
In another technical scheme, preferably, the antirust coating is an inorganic silicon high-temperature-resistant paint layer, the first time is in a range of 30min to 60min when the inorganic silicon high-temperature-resistant paint layer is dried, the preset temperature range is in a range of 200 ℃ to 250 ℃ when the inorganic silicon high-temperature paint layer is baked, and the second time is in a range of 25min to 35 min.
In the technical scheme, under the principle of carrying out rust protection to the magnetic conduction coating, still can utilize inorganic silicon high temperature resistant paint layer to act as antirust coating, because inorganic silicon high temperature resistant paint layer also has certain high temperature resistance, and be difficult for equally reacting with solution such as water, acid or alkali and lead to magnetic conduction coating surface to corrode and produce a large amount of iron rust, then the magnetic conduction coating drops or problem such as functional failure appears, thereby can carry out long-term protection to the magnetic conduction coating through preparing one deck inorganic silicon paint layer on the magnetic conduction coating, guarantee that the magnetic conduction coating can normally use for a long time (1 ~ 2 years) and not rust. Meanwhile, the stainless steel cooker body containing the magnetic conductive coating and the inorganic silicon high-temperature-resistant paint layer can effectively reduce the electromagnetic heating noise of the cooker body and can effectively ensure that the magnetic conductive coating can work stably for a long time.
Preferably, when the antirust coating is an inorganic silicon high-temperature-resistant paint layer, the thickness of the inorganic silicon high-temperature-resistant paint layer is within the range of 50 μm to 80 μm, when the inorganic silicon high-temperature-resistant paint layer is dried, the drying temperature is room temperature, the time for carrying out normal-temperature air drying treatment on the inorganic silicon high-temperature-resistant paint layer on the magnetic conductive coating is within the range of 30min to 60min, the baking temperature for baking the inorganic silicon high-temperature-resistant paint layer subjected to the normal-temperature air drying treatment is within the range of 200 ℃ to 250 ℃, and the baking time is more than or equal to the range of 25min to 35 min.
In the technical scheme, the inorganic silicon high-temperature-resistant paint layer can have good adhesion performance and good flatness by drying the inorganic silicon high-temperature-resistant paint within the time range and baking the inorganic silicon high-temperature-resistant paint within the time and temperature ranges.
In the above technical solution, preferably, before the forming, by the arc spraying process, the magnetically conductive coating on at least the outer surface of the bottom wall of the pot body, the method further includes: and carrying out sand blasting treatment on the outer surface of the bottom wall of the pot body or the outer surfaces of the bottom wall and the side wall of the pot body to ensure that the roughness value of the outer surface of the bottom wall of the pot body or the outer surfaces of the bottom wall and the side wall is in the range of 60-80 mu m.
In this technical scheme, the accessible carries out sand blasting to the surface of pan body diapire or diapire and lateral wall, so that the surface of the diapire of pan body or the surface of diapire and lateral wall has certain smoothness, thereby can prevent because of the surface of the diapire of pan body or the surface of diapire and lateral wall is too crude, make the condition that the magnetic conduction coating easily drops take place, and then it can be firmly attached to on the surface of the diapire of pan body or the surface of diapire and lateral wall and be difficult for droing after on the surface of the diapire of pan body or the surface of diapire and lateral wall with the magnetic conduction coating spraying. Simultaneously, preheat through the surface of the diapire or the surface of diapire and lateral wall to the pan body after the sandblast is handled for the adhesion of pan body is stronger, thereby makes the magnetic conduction coating change to adhere to on the surface of the diapire of pan body or the surface of diapire and lateral wall.
Wherein, the roughness value of the bottom wall or the outer surfaces of the bottom wall and the side wall of the pot body is preferably in the range of 50 μm to 60 μm after sand blasting.
In the above technical solution, preferably, before the forming, by the arc spraying process, the magnetically conductive coating on at least the outer surface of the bottom wall of the pot body, the method further includes: and (3) carrying out preheating treatment on the outer surfaces of the bottom wall or the bottom wall and the side wall of the pot body subjected to the sand blasting treatment, wherein the preheating time is within the range of 1min to 2min, and the preheating temperature is within the range of 100 ℃ to 150 ℃.
In the technical scheme, when the magnetic conductive coating after sand blasting is preheated, the preheating time is preferably in the range of 1min to 2min, and the preheating temperature is in the range of 120 ℃ to 150 ℃, wherein a proper preheating temperature can be specifically selected through the material of the anti-rust coating, for example, if the anti-rust coating is an organic silicon high-temperature resistant paint layer, the preset temperature is in the range of 100 ℃ to 100 ℃, and if the anti-rust coating is an inorganic silicon paint layer, the preset temperature is in the range of 120 ℃ to 150 ℃.
In the above technical solution, preferably, before the sand blasting treatment is performed on the outer surface of the magnetic conductive coating, the method further includes: and cleaning the outer surfaces of the bottom wall or the bottom wall and the side wall of the pot body.
In this technical scheme, there will always be some greasy dirt, impurity etc. on the pan body that prepares, and through rinsing it in advance, can prevent that greasy dirt or impurity on the pan body from being inlayed between the surface of the diapire of magnetic conduction coating and pan body or the surface of diapire and lateral wall, and then can prevent that the magnetic conduction coating from appearing the condition emergence that easily drops because of the interference of greasy dirt, impurity etc. wherein, specifically, can adopt acetone to clean impurity such as greasy dirt on the surface of getting rid of the pan body.
In the above technical solution, preferably, before spraying the antirust paint on the outer surface of the magnetic conductive coating at normal temperature to form the antirust coating, the method further includes: and carrying out sand blasting treatment on the outer surface of the magnetic conductive coating so that the roughness value of the outer surface of the magnetic conductive coating is in the range of 50-60 mu m.
In this technical scheme, the accessible carries out sand blasting to the surface of the magnetic conduction coating that prepares to make the magnetic conduction coating have certain smoothness, thereby can prevent because of the surface of magnetic conduction coating is too coarse, make the condition that the anti rust coating easily drops take place, and then it can be firmly attached to on the magnetic conduction coating and be difficult for droing after with the anti rust coating spraying on the magnetic conduction coating.
Wherein, after sand blasting treatment, the magnetic conductive coating preferably has a roughness value in the range of 50 μm to 60 μm,
in the above technical solution, preferably, in the step of forming the magnetically conductive coating on the outer surface of the pot body by using the arc spraying process: the arc spraying voltage is in the range of 30V to 34V, the arc spraying current is in the range of 160A to 180A, the arc spraying pressure is in the range of 0.6MPa to 0.7MPa, the arc spraying distance is in the range of 300mm to 400mm, and the arc spraying angle is in the range of 80 degrees to 90 degrees.
In the technical scheme, before the electric arc spraying, the shielding tool can be used for shielding the outer surface of the cookware body, which does not need to form the magnetic conductive coating, so that the phenomenon that liquid drops of iron or iron alloy or iron oxide or iron alloy oxide molten at high temperature are sprayed on the surface, which does not need to form the magnetic conductive coating, is avoided. Preferably, the ferromagnetic magnetic conductive coating is preferably made of a FeSi3 alloy wire, wherein when the magnetic conductive coating is made of a FeSi3 alloy wire, the arc spraying steps are as follows: after the outer surface of the bottom wall of the cookware body or the outer surfaces of the bottom wall and the side wall are preheated, FeSi3 wire is melted at high temperature by electric arc spraying, and the melted liquid drops are sprayed onto the outer surface of the bottom wall of the cookware body at high speed with the assistance of high-speed airflow, so that a magnetic conductive coating is formed on the outer surface of the bottom wall of the cookware body. Specifically, in the step of forming the magnetic conductive coating on the outer surface of the bottom wall or the outer surfaces of the bottom wall and the side wall of the cookware body by using the electric arc spraying process: the electric arc spraying voltage is in the range of 30V to 34V, the electric arc spraying current is in the range of 160A to 170A, the electric arc spraying pressure is in the range of 0.6Mpa to 0.7Mpa, the electric arc spraying distance is in the range of 300mm to 400mm, the electric arc spraying angle is in the range of 80 degrees to 90 degrees, the porosity of the prepared magnetic conductive coating can be in the range of 10 percent to 15 percent by selecting the process parameters, the porosity in the range can absorb and consume the vibration energy of partial noise on one hand, and therefore the noise of the cookware body in the electromagnetic heating process can be reduced, on the other hand, the magnetic conductive coating prepared by the preparation process can interact with the cookware body, and further the vibration mode of molecules of the cookware body under an alternating magnetic field is changed, and the noise reduction effect is achieved.
In the above technical solutions, preferably, the thickness of the magnetic conductive coating is in a range from 50 μm to 300 μm, wherein specifically, the thickness may be more different according to the material of the magnetic conductive coating and the material of the anti-corrosive coating, for example, when the magnetic conductive coating is made of FeSi3 alloy wire and the anti-corrosive coating is an organic silicon high temperature resistant paint layer, the thickness of the magnetic conductive coating is in a range from 100 μm to 200 μm, and when the magnetic conductive coating is made of FeSi3 alloy wire and the anti-corrosive coating is an inorganic silicon high temperature resistant paint layer, the thickness of the magnetic conductive coating is in a range from 200 μm to 300 μm.
In the above technical solutions, preferably, the magnetic conductive coating has a porosity in a range of 10% to 15%.
In this technical scheme, the inside porosity of magnetic conduction coating can also absorb and consume the vibrations energy of partial noise to can further show the noise that reduces the pan body in the electromagnetic heating in-process, and set up the porosity and can furthest increase the absorption and the consumption of magnetic conduction coating to the noise at 10% to 15% within range, and then can show the noise that reduces the pan body in the electromagnetic heating in-process.
In the above technical solutions, preferably, the thickness of the anti-rust coating is in a range from 30 μm to 100 μm, and specifically, for example, when the anti-rust coating is an organosilicon high-temperature resistant paint layer or an inorganic silicon high-temperature resistant paint layer, the thickness of the organosilicon high-temperature resistant paint layer or the inorganic silicon high-temperature resistant paint layer is preferably in a range from 50 μm to 80 μm.
In the above technical solutions, preferably, the high temperature resistant temperature of the anti-corrosive coating is in a range of 400 ℃ to 700 ℃, specifically, for example, when the anti-corrosive coating is an organosilicon high temperature resistant paint layer, the high temperature resistant temperature is in a range of 500 ℃ to 700 ℃.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 shows a schematic structural view of a pot according to an embodiment of the invention;
fig. 2 shows another schematic construction of a pot according to an embodiment of the invention;
fig. 3 shows a flow diagram of a method of making a pot according to an embodiment of the invention;
fig. 4 shows another flow diagram of a method of making a pot according to an embodiment of the invention;
fig. 5 shows a further schematic flow diagram of a method of making a pot according to an embodiment of the invention;
fig. 6 shows a further flow diagram of a method of making a pot according to an embodiment of the invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The pot and the method for manufacturing the pot according to the present invention will be described in detail with reference to fig. 1 to 6.
An embodiment of the first aspect of the present invention provides a pot, as shown in fig. 1 and fig. 2, including: the cookware body 1 is made of a magnetic conductive material, and the thickness of the bottom wall of the cookware body 1 is within the range of 0.5mm to 2.0 mm; and the magnetic conduction coating 2 is at least attached to the outer surface of the bottom wall of the cookware body 1, and the magnetic conduction coating 2 is made of a ferromagnetic material, a nickel magnetic material or a cobalt magnetic material.
According to the cookware provided by the embodiment of the first aspect of the invention, the cookware body 1 is made of a magnetic conductive material, such as 430 stainless steel or cast iron, and preferably, the cookware body 1 is integrally cast or stamped from the magnetic conductive material, such an arrangement can ensure that the cookware body 1 can be used for electromagnetic heating, and meanwhile, by arranging the magnetic conductive coating 2 made of ferromagnetic material, nickel magnetic material or cobalt magnetic material on the outer surface of the bottom wall of the cookware body 1, the vibration mode of the cookware body 1 under an alternating electromagnetic field can be changed by using the magnetic conductive coating 2, so as to effectively reduce or consume the vibration noise of the cookware body 1 in the electromagnetic heating process. And research shows that the noise reduction effect is best when the thickness of the bottom wall of the cooker body 1 is in the range of 0.5mm to 2.0mm, so that the noise emitted by the cooker body 1 during electromagnetic heating can be greatly reduced, the noise reduction effect is more obvious, and specifically, the noise can be reduced by about 5dB to 10dB by arranging the magnetic conductive coating.
Preferably, the magnetic conductive coating 2 is made of a magnetic conductive metal or an oxide of a magnetic conductive metal alloy, specifically, made of wires or powder of iron or an iron alloy or an oxide of iron, nickel or a nickel alloy or an oxide of nickel or an oxide of cobalt or a cobalt alloy, wherein the wires are low in cost and easy to feed in a spraying process, so that the preparation cost of the magnetic conductive coating can be reduced.
In the above technical solution, preferably, of course, the magnetically conductive coating 2 may also be formed on the outer surface of the sidewall of the pot.
In the above technical solution, preferably, the magnetic conductive coating is made of a ferromagnetic material, and the porosity of the magnetic conductive coating 2 is in a range of 10% to 15%.
In the technical scheme, the magnetic conductive coating 2 made of the ferromagnetic material can change the vibration mode of the cooker body 1 under the high-frequency alternating electromagnetic field to the maximum extent, so that the vibration noise of the cooker body 1 in the electromagnetic heating process is effectively reduced or consumed, and the cost is low. Meanwhile, researches show that the ferromagnetic magnetic conductive coating with the porosity of 10-15% has the best noise reduction effect, and particularly, the porosity can be obtained by controlling the spraying process parameters of the magnetic conductive coating 2.
In the above technical solution, preferably, the magnetically permeable coating 2 is made of a ferromagnetic material, and the thickness of the magnetically permeable coating 2 is in a range of 50 μm to 300 μm.
In this technical scheme, when magnetic conduction coating 2 was made by ferromagnetic material, the thickness degree of magnetic conduction coating 2 was in 50 mu m to 300 mu m's within range, and this thickness is thinner relatively, and it can interact with pan body 1, and then changes pan body 1's molecule vibration noise under alternating magnetic field, and then can realize reducing pan body 1 pot noise when electromagnetic heating.
In the above technical solution, preferably, the pot further includes: and the antirust coating 3 is arranged on the outer surface of the magnetic conduction coating 2, wherein the outer surface of the magnetic conduction coating 2 is the surface of the magnetic conduction coating 2 far away from the cookware body 1.
In this technical scheme, when magnetic conduction coating 2 is made by ferromagnetic material, because iron has characteristics such as easy corrosion easily rusts, therefore can set up one deck rust-resistant, waterproof anti-rust coating 3 outside magnetic conduction coating 2, thereby usable this anti-rust coating 3 advances shape rust-resistant, waterproof protection to magnetic conduction coating 2 on pan body 1, thereby can prevent magnetic conduction coating 2 and solution such as water, acid or alkali from taking place to react, and make the magnetic conduction coating 2 surface take place to corrode and produce the condition emergence of a large amount of iron rust, and then can avoid appearing magnetic conduction coating 2 and drop or problem such as functional failure. Consequently, refabricate the anticorrosive coating 3 that the one deck is high temperature resistant and rust-resistant on the magnetic conduction coating 2 of this pan body 1, can protect for a long time and guarantee that magnetic conduction coating 2 can be normal use for a long time (1 ~ 2 years) and not rust to use this kind of pan body 1 that contains magnetic conduction coating 2 and high temperature resistant and rust-resistant anticorrosive coating 3, both can effectively reduce its electromagnetic heating's noise, can reach the long-term magnetic conduction coating 2 of protecting effectively again, so that magnetic conduction coating 2 can work effectively for a long time steadily. Among them, the high temperature resistance in the rust inhibitive coating 3 is preferably in the temperature range of 400 ℃ to 700 ℃.
Preferably, the anti-rust coating 3 is formed by spraying an anti-rust paint on the magnetic conductive coating 2, and the anti-rust coating 3 may also be formed by spraying metal powder or metal wire on the magnetic conductive coating 2, and the anti-rust metal material may be stainless steel or aluminum alloy. However, the rust-proof coating of the present invention is preferably formed by spraying a rust-proof paint, because the manner of forming the rust-proof coating 3 has the advantages of low cost, easy processing, etc., compared with the manner of spraying metal powder or wire material on the magnetically conductive coating 2 to form the rust-proof coating. Specifically, the antirust coating can be sprayed on the magnetic conductive coating 2 by an air gun at normal temperature, certainly, the antirust coating can be directly brushed on the magnetic conductive coating 2 by a brush and the like, and the antirust coating 3 made of metal powder or wire materials is sprayed on the magnetic conductive coating after the metal is melted at high temperature by adopting an electric arc spraying process, so that the process complexity and the cost of the electric arc spraying are obviously higher than those of the air gun spraying.
In the above technical scheme, preferably, the antirust coating 3 is an inorganic silicon high-temperature-resistant paint layer, an organic silicon high-temperature-resistant paint layer or a ceramic layer.
In the technical scheme, the inorganic silicon high-temperature paint, the organic silicon high-temperature paint and the ceramic have the advantages of high temperature resistance, rust prevention and the like, so that the magnetic conduction layer can be effectively and reliably protected in a high-temperature rust prevention mode.
In the above technical solution, preferably, the thickness of the rust inhibitive coating 3 is in the range of 30 μm to 100 μm.
In this technical scheme, anti-rust coating 3 is difficult too thick, because can increase the cost like this and can reduce pan body 1's electromagnetic heating efficiency, on the other hand anti-rust coating 3 is also difficult too thin, because can not form rust-resistant protection to magnetic conduction coating 2 like this effectively, therefore the experiment shows that anti-rust coating 3's thickness is when 30 mu m to 100 mu m's within range, can form effective protection to magnetic conduction coating 2 promptly and can not make anti-rust coating 3's cost too high again, simultaneously, anti-rust coating 3 of this kind of thickness does not basically have an influence to pan body 1's magnetic conductivity.
Fig. 3 shows a flow diagram of a method of making a cookware according to an embodiment of the invention.
As shown in fig. 3, an embodiment of the second aspect of the present invention provides a method for manufacturing a pot, which is used for manufacturing the pot provided in any embodiment of the first aspect, wherein the method for manufacturing a pot includes: step 302, preparing a magnetic conductive material into a pot body 1 in a stamping or casting manner, wherein the thickness of the bottom wall of the pot body 1 is within the range of 0.5mm to 2.0 mm; and 304, forming a magnetic conductive coating 2 at least on the outer surface of the bottom wall of the cookware body 1 by using an electric arc spraying process, wherein the magnetic conductive coating 2 is made of a ferromagnetic material, a nickel magnetic material or a cobalt magnetic material.
According to the manufacturing method of the cookware in the embodiment of the second aspect of the invention, the cookware body 1 is made of the magnetic conductive material by stamping or casting, so that the cookware body 1 can be used for electromagnetic heating, wherein preferably, the cookware body 1 is made of magnetic conductive stainless steel such as 430 stainless steel or cast iron, and preferably, the cookware body 1 is integrally cast or stamped from the magnetic conductive material, and then the magnetic conductive coating 2 can be formed on the outer surface of the bottom wall of the cookware body 1 or the outer surface of the whole cookware body 1 by using an electric arc spraying process, so that the vibration mode of the cookware body 1 under an alternating electromagnetic field can be changed by using the magnetic conductive coating 2, and the vibration noise of the cookware body 1 in the electromagnetic heating process can be effectively reduced or consumed. Moreover, researches show that the thickness of the bottom wall of the cooker body 1 is limited within the range of 0.5mm to 2.0mm, so that the noise emitted by the cooker body 1 during electromagnetic heating can be reduced most effectively, the noise reduction effect is more obvious, and particularly, the noise can be reduced by about 5dB to 10 dB.
Preferably, the magnetic conductive coating 2 is made of a magnetic conductive metal or an oxide of a magnetic conductive metal alloy, specifically, for example, made of a wire or powder of iron or an iron alloy or an oxide of iron, nickel or a nickel alloy or an oxide of nickel or an oxide of cobalt or a cobalt alloy, wherein the wire has a low cost and is easy to feed in a spraying process, so that the preparation cost of the magnetic conductive coating 2 can be reduced. Meanwhile, the porosity inside the magnetic conductive coating 2 can also absorb and consume part of the vibration energy of noise, so that the noise of the cooker body 1 in the electromagnetic heating process can be further remarkably reduced.
Fig. 4 shows a flow diagram of a method of making a cookware according to another embodiment of the invention.
In another embodiment, as shown in fig. 4, a method of manufacturing a pot includes:
In addition, before step 402, the method further includes: and cleaning the outer surface of the bottom wall of the pot body 1. In this step, through wasing pan body 1 in advance, can prevent that greasy dirt or impurity on pan body 1 from being inlayed between the surface of the diapire of magnetic conduction coating 2 and pan body 1 or the surface of diapire and lateral wall, and then can prevent that magnetic conduction coating 2 from appearing the condition emergence of easily droing because of the interference of greasy dirt, impurity etc., wherein, specifically, can adopt acetone to clean impurity such as greasy dirt on getting rid of pan body 1's the surface.
And 405, spraying an antirust coating on the outer surface of the magnetic conductive coating 2 at normal temperature to form an antirust coating 3. In this step, when the magnetic conductive coating 2 is made of ferromagnetic material, because iron has the characteristics of easy corrosion, easy rusting and the like, a layer of antirust and waterproof antirust coating 3 can be arranged outside the magnetic conductive coating 2, so that the magnetic conductive coating 2 on the cookware body 1 can be subjected to shape antirust and waterproof protection by using the antirust coating 3, and the magnetic conductive coating 2 can be prevented from reacting with water, acid or alkali and other solutions, so that the surface of the magnetic conductive coating 2 is corroded and a large amount of iron rust is generated, and the problems of falling off or functional failure and the like of the magnetic conductive coating 2 can be avoided. Consequently, refabricate the anticorrosive coating 3 that the one deck is high temperature resistant and rust-resistant on the magnetic conduction coating 2 of this pan body 1, can protect for a long time and guarantee that magnetic conduction coating 2 can be normal use for a long time (1 ~ 2 years) and not rust to use this kind of pan body 1 that contains magnetic conduction coating 2 and high temperature resistant and rust-resistant anticorrosive coating 3, both can effectively reduce its electromagnetic heating's noise, can reach the long-term magnetic conduction coating 2 of protecting effectively again, so that magnetic conduction coating 2 can work effectively for a long time steadily. The high temperature resistance in the anti-rust coating 3 is a temperature in the range of 400 ℃ to 700 ℃, and the room temperature value is room temperature, generally about 25 ℃, specifically, room temperatures in different regions and different seasons are different, but generally more than or equal to 0 ℃ and less than or equal to 40 ℃.
And 406, drying the antirust coating 3 at normal temperature for the first time. In this step, the anticorrosive coating 3 can be solidified and molded by drying the anticorrosive coating 3.
And 407, baking the dried antirust coating 3 within a preset temperature range for a second time. In this step, the antirust coating 3 can be firmly attached to the outer wall surface of the pot body 1 by baking and curing the antirust coating 3, so that the high-temperature-resistant antirust coating 3 can be prevented from falling off.
In the above technical solutions, preferably, the thickness of the magnetic conductive coating 2 is in a range from 50 μm to 300 μm, wherein specifically, the thickness may be more different according to the material of the magnetic conductive coating 2 and the material of the anti-rust coating 3, for example, when the magnetic conductive coating 2 is made of FeSi3 alloy wire and the anti-rust coating 3 is an organic silicon high temperature resistant paint layer, the thickness of the magnetic conductive coating 2 is in a range from 100 μm to 200 μm, and when the magnetic conductive coating 2 is made of FeSi3 alloy wire and the anti-rust coating 3 is an inorganic silicon high temperature resistant paint layer, the thickness of the magnetic conductive coating 2 is in a range from 200 μm to 300 μm.
In the above technical solutions, preferably, the magnetic conductive coating 2 has a porosity in a range of 10% to 15%.
In this technical scheme, the inside porosity of magnetic conduction coating 2 can also absorb and consume the vibrations energy of partial noise to can further show the noise that reduces pan body 1 in the electromagnetic heating in-process, and set up the porosity and can furthest increase the absorption and the consumption of magnetic conduction coating 2 to the noise at 10% to 15% within range, and then can show the noise that reduces pan body 1 in the electromagnetic heating in-process. Among them, the rust preventive coating 3 is preferably made of a rust preventive paint, because the rust preventive paint has advantages of low price, easy processing, etc. as compared with a rust preventive coating made of other metals, a rust preventive coating made of a rust preventive paint has advantages of low cost, easy processing, etc. Specifically, the antirust coating 3 can be sprayed on the magnetic conductive coating 2 by an air gun at normal temperature, or can be directly brushed on the magnetic conductive coating 2 by a brush or the like, and then the antirust coating is naturally dried after being placed at room temperature, and then is baked and cured so as to be firmly attached to the outside of the magnetic conductive coating 2, so that the antirust coating 3 can be prevented from falling off, the antirust coating 3 made of metal can be sprayed on the magnetic conductive coating 2 by an electric arc spraying process, the electric arc spraying process is obviously not convenient for air gun spraying or brush brushing, and the cost of the electric arc spraying process is obviously higher than that of the air gun spraying or brush brushing.
In the above technical solution, preferably, the antirust coating 3 is an organosilicon high-temperature-resistant paint layer, when the organosilicon high-temperature-resistant paint layer is dried, the first time is within a range from 30min to 45min, when the organosilicon high-temperature-resistant paint layer is baked, the preset temperature range is within a range from 250 ℃ to 300 ℃, and the second time is within a range from 15min to 30 min.
In this technical scheme, usable organosilicon high temperature resistant paint layer acts as antirust coating 3, because organosilicon high temperature resistant paint has certain high temperature resistance, and be difficult for reacting with solution such as water, acid or alkali and lead to magnetic conduction coating 2 surface to corrode and produce a large amount of iron rust, then the magnetic conduction coating 2 appears and drops or the scheduling problem of functional failure, thereby can carry out long-term protection to magnetic conduction coating 2 through preparing one deck organosilicon high temperature resistant paint layer on magnetic conduction coating 2, guarantee that magnetic conduction coating 2 can be normal use (1 ~ 2 years) and not rust for a long time. Meanwhile, the stainless steel cooker body 1 containing the magnetic conductive coating 2 and the organic silicon high-temperature-resistant paint layer can effectively reduce the electromagnetic heating noise of the cooker body 1 and can effectively ensure that the magnetic conductive coating 2 can work stably for a long time. Wherein, preferably, the organosilicon high temperature resistant paint layer is composed of organic resin, heat-resistant pigment, auxiliary agent, solvent and the like.
Preferably, when the antirust coating 3 is an organosilicon high-temperature-resistant paint layer, the thickness of the organosilicon high-temperature-resistant paint layer is within a range from 50 μm to 80 μm, the organosilicon high-temperature-resistant paint layer is dried by natural air drying at room temperature, the air drying time is within a range from 30min to 45min, the baking temperature for baking and curing the organosilicon high-temperature-resistant paint layer subjected to normal-temperature air drying is within a range from 250 ℃ to 300 ℃, and the baking time is within a range from 15min to 30 min.
In another technical scheme, preferably, the antirust coating 3 is an inorganic silicon high-temperature-resistant paint layer, the first time is in a range of 30min to 60min when the inorganic silicon high-temperature-resistant paint layer is dried, the preset temperature range is in a range of 200 ℃ to 250 ℃ when the inorganic silicon high-temperature paint layer is baked, and the second time is in a range of 25min to 35 min.
In this technical scheme, under the principle of carrying out rust-resistant protection to magnetic conduction coating 2, still can utilize inorganic silicon high temperature resistant paint layer to act as rust-resistant coating 3, because inorganic silicon high temperature resistant paint layer also has certain high temperature resistance, and be difficult for equally reacting with solution such as water, acid or alkali and lead to magnetic conduction coating 2 surface to corrode and produce a large amount of iron rust, then the magnetic conduction coating 2 drops or problem such as functional failure appears, thereby can carry out long-term protection to magnetic conduction coating 2 through preparing one deck inorganic silicon high temperature resistant paint layer on magnetic conduction coating 2, guarantee that magnetic conduction coating 2 can be normal use for a long time (1 ~ 2 years) and do not rust. Meanwhile, the stainless steel cooker body 1 containing the magnetic conductive coating 2 and the inorganic silicon high-temperature-resistant paint layer can effectively reduce the electromagnetic heating noise of the cooker body 1 and can effectively ensure that the magnetic conductive coating 2 can work stably for a long time.
Preferably, when the antirust coating 3 is an inorganic silicon high-temperature-resistant paint layer, the thickness of the inorganic silicon high-temperature-resistant paint layer is within a range from 50 μm to 80 μm, when the inorganic silicon high-temperature-resistant paint layer is dried, the drying temperature is room temperature, the time for carrying out normal-temperature air drying treatment on the inorganic silicon high-temperature-resistant paint layer on the magnetic conductive coating 2 is within a range from 30min to 60min, the baking temperature for baking the inorganic silicon high-temperature-resistant paint layer after the normal-temperature air drying treatment is within a range from 200 ℃ to 250 ℃, and the baking time is greater than or equal to the range from 25min to 35 min.
In the above technical solutions, preferably, the thickness of the anti-rust coating 3 is in a range from 30 μm to 100 μm, and specifically, for example, when the anti-rust coating 3 is an organosilicon high-temperature resistant paint layer or an inorganic silicon high-temperature resistant paint layer, the thickness of the organosilicon high-temperature resistant paint layer or the inorganic silicon high-temperature resistant paint layer is preferably in a range from 50 μm to 80 μm.
In the above technical solutions, it is preferable that the high temperature resistant temperature of the anti-corrosive coating 3 is in a range of 400 ℃ to 700 ℃, specifically, for example, when the anti-corrosive coating 3 is a silicone high temperature resistant paint layer, the high temperature resistant temperature is in a range of 500 ℃ to 700 ℃.
A method for manufacturing a pot according to an embodiment of the present invention is described in detail below with reference to fig. 5, wherein the method for manufacturing a pot includes the steps of:
in step 501, the pot body 1 is prepared from 430 stainless steel, and in this step, the pot body 1 is preferably integrally cast.
And 503, performing sand blasting treatment on the cleaned outer bottom wall surface by using a sand blasting machine to obtain the outer bottom wall surface with the surface roughness value ranging from 60 micrometers to 80 micrometers, and blowing away the sand remaining on the outer bottom wall surface by using high-speed airflow.
In step 504, the outer bottom wall surface of the cookware body 1 is preheated by using oxy-acetylene flame, wherein the preheating temperature of the preheating treatment is in the range of 100 ℃ to 130 ℃, and the preheating time is in the range of 1min to 2 min.
And 505, shielding the edge area of the outer bottom wall surface of the cookware body 1, which is not required to be sprayed with the magnetic conductive coating 2, by using a shielding tool.
And 507, performing sand blasting treatment on the magnetic conductive coating 2 by using a sand blasting machine to obtain the magnetic conductive coating 2 with the roughness value within the range of 50-60 microns, and then blowing away the sand and gravel remained on the surface of the magnetic conductive coating 2 by using high-speed airflow.
And step 508, spraying the organosilicon high-temperature-resistant paint on the magnetic conductive coating 2 with the roughness value within the range of 50-60 microns by using a spraying process, and carrying out normal-temperature (20 ℃) air drying treatment on the organosilicon high-temperature-resistant paint on the magnetic conductive coating 2, wherein the thickness of the organosilicon high-temperature-resistant paint is within the range of 50-80 microns, and the time for carrying out the normal-temperature air drying treatment on the organosilicon high-temperature-resistant paint on the magnetic conductive coating 2 is within the range of 30-45 min.
509, baking and curing the normal-temperature air-dried organosilicon high-temperature resistant paint to form an organosilicon high-temperature resistant paint layer on the magnetic conductive coating 2, wherein the baking and curing temperature of the baking and curing of the normal-temperature air-dried organosilicon high-temperature resistant paint layer is within the range of 250 ℃ to 300 ℃, and the baking and curing time is within the range of 15min to 30 min.
A method for manufacturing a pot according to another embodiment of the present invention is described in detail below with reference to fig. 6, wherein the method for manufacturing a pot includes the steps of:
in step 601, the pot body 1 is prepared from 430 stainless steel, and in this step, the pot body 1 is preferably integrally cast.
In step 602, the outer bottom wall surface of the pot body 1 is cleaned with acetone, and in this step, impurities such as oil stains on the outer bottom wall surface of the pot body 1 can be wiped off with acetone.
And 606, immediately melting the FeSi3 alloy wire material at high temperature by adopting electric arc spraying after preheating, and spraying molten liquid drops onto the preheated outer bottom wall surface at high speed with the aid of high-speed airflow to form a magnetic conductive coating 2 with preset thickness and preset porosity, wherein the magnetic conductive coating 2 is specifically the magnetic conductive coating 2. In this step, the predetermined thickness of the magnetically permeable coating layer 2 is in the range of 50 μm to 300 μm, the predetermined porosity of the magnetically permeable coating layer 2 is in the range of 10% to 15%, the arc spraying voltage is in the range of 30V to 32V, the arc spraying current is in the range of 170A to 180A, the arc spraying pressure is in the range of 0.6Mpa to 0.7Mpa, the arc spraying distance is in the range of 300mm to 400mm, and the arc spraying angle is in the range of 80 ° to 90 °.
And 609, baking and curing the inorganic silicon high-temperature-resistant paint layer subjected to the normal-temperature air drying treatment to form the inorganic silicon high-temperature-resistant paint layer on the magnetic conduction coating 2, wherein the baking and curing temperature for baking and curing the inorganic silicon high-temperature-resistant paint layer subjected to the normal-temperature air drying is within the range of 200-250 ℃, and the baking and curing time is about 30 min.
The technical scheme of the invention is explained in detail in the above with the accompanying drawings, and by the technical scheme of the invention, the preparation method of the graphite pot can be effectively improved, and the manufacturing period of the graphite pot body 1 is greatly shortened, so that the processing efficiency is improved, and the processing cost is greatly reduced.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (14)
1. A cookware, comprising:
the cookware body is made of a magnetic conductive material, and the thickness of the bottom wall of the cookware body is within the range of 0.5mm to 2.0 mm;
the magnetic conduction coating is at least attached to the outer surface of the bottom wall of the cookware body and is made of ferromagnetic materials, nickel magnetic materials or cobalt magnetic materials.
2. The cookware according to claim 1,
the magnetic conductive coating is made of a ferromagnetic material, and the porosity of the magnetic conductive coating is in the range of 10% to 15%.
3. The cookware according to claim 2,
the thickness of the magnetically conductive coating is in the range of 50 μm to 300 μm.
4. The pot according to claim 2 or 3, further comprising:
and the antirust coating is arranged on the outer surface of the magnetic conductive coating.
5. The cookware according to claim 4,
the antirust coating is formed by spraying antirust paint on the magnetic conductive coating.
6. The pot according to claim 5, characterized in that the antirust coating is an inorganic silicon high temperature paint coating, an organic silicon high temperature paint coating or a ceramic coating.
7. The pot according to claim 4, characterized in that the thickness of the anti-tarnish coating ranges from 30 μm to 100 μm.
8. A method of manufacturing a cookware for preparing a cookware as claimed in any of claims 1 to 7, comprising:
preparing the magnetic conductive material into a pot body in a stamping or casting mode, wherein the thickness of the bottom wall of the pot body is in the range of 0.5mm to 2.0 mm;
and forming a magnetic conductive coating on at least the outer surface of the bottom wall of the cookware body by utilizing an electric arc spraying process, wherein the magnetic conductive coating is made of a ferromagnetic material, a nickel magnetic material or a cobalt magnetic material.
9. The cookware preparation method according to claim 8, further comprising:
spraying an antirust coating on the outer surface of the magnetic conductive coating at normal temperature to form an antirust coating, wherein the magnetic conductive coating is a ferromagnetic magnetic conductive coating, and the porosity of the magnetic conductive coating is 10-15%;
drying the antirust coating at normal temperature for the first time;
and baking the dried antirust coating within a preset temperature range for a second time.
10. The cookware preparation method according to claim 9,
the antirust coating is an organic silicon high-temperature-resistant paint layer, the first time is within the range of 30min to 45min when the organic silicon high-temperature-resistant paint layer is dried, the preset temperature range is within the range of 250 ℃ to 300 ℃ when the organic silicon high-temperature-resistant paint layer is baked, and the second time is within the range of 15min to 30 min; or
The antirust coating is an inorganic silicon high-temperature-resistant paint layer, when the inorganic silicon high-temperature-resistant paint layer is dried, the first time is within the range of 30min to 60min, when the inorganic silicon high-temperature paint is baked, the preset temperature range is within the range of 200 ℃ to 250 ℃, and the second time is within the range of 25min to 35 min.
11. The cookware preparation method according to claim 8, further comprising, before said forming a magnetically conductive coating on at least an outer surface of the bottom wall of the cookware body using an electric arc spraying process:
and carrying out sand blasting treatment on the outer surface of the bottom wall of the pot body to ensure that the roughness value of the outer surface of the bottom wall of the pot body is in the range of 60-80 microns.
12. The cookware preparation method according to claim 11, further comprising, before said forming a magnetically conductive coating on at least an outer surface of the bottom wall of the cookware body using an electric arc spraying process:
and carrying out preheating treatment on the outer surface of the bottom wall of the cookware body after the sand blasting treatment, wherein the preheating time is within the range of 1min to 2min, and the preheating temperature is within the range of 100 ℃ to 150 ℃.
13. The method for manufacturing a pot according to claim 9, wherein before spraying the rust preventive paint on the outer surface of the magnetically conductive coating at normal temperature to form the rust preventive coating, the method further comprises:
and carrying out sand blasting treatment on the outer surface of the magnetic conductive coating so that the roughness value of the outer surface of the magnetic conductive coating is in the range of 50-60 mu m.
14. The cookware preparation method according to any of claims 8 to 13,
in the step of forming a magnetically conductive coating layer at least on the outer surface of the bottom wall of the pot body by the arc spraying process: the arc spraying voltage is in the range of 30V to 34V, the arc spraying current is in the range of 160A to 170A, the arc spraying pressure is in the range of 0.6MPa to 0.7MPa, the arc spraying distance is in the range of 300mm to 400mm, and the arc spraying angle is in the range of 80 DEG to 90 deg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610443171.0A CN107510351B (en) | 2016-06-17 | 2016-06-17 | Cookware and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610443171.0A CN107510351B (en) | 2016-06-17 | 2016-06-17 | Cookware and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107510351A CN107510351A (en) | 2017-12-26 |
| CN107510351B true CN107510351B (en) | 2020-05-08 |
Family
ID=60721254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610443171.0A Active CN107510351B (en) | 2016-06-17 | 2016-06-17 | Cookware and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107510351B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109355610A (en) * | 2018-09-30 | 2019-02-19 | 中国科学院宁波材料技术与工程研究所 | A kind of metallic matrix electromagnetic heating coating and its preparation method and application |
| CN109517695A (en) * | 2019-01-25 | 2019-03-26 | 覃永任 | A kind of alcoholic installation for fermenting |
| CN113116117B (en) * | 2019-12-31 | 2024-03-01 | 佛山市顺德区美的电热电器制造有限公司 | Container, cooking utensil and manufacturing method of container |
| CN113545648B (en) * | 2020-04-07 | 2022-11-22 | 佛山市顺德区美的电热电器制造有限公司 | Container, cooking utensil and manufacturing method of container |
| CN114794841A (en) * | 2021-12-28 | 2022-07-29 | 浙江绍兴苏泊尔生活电器有限公司 | Composite layer for pot, preparation method of composite layer, pot and cooking utensil |
| CN115474828A (en) * | 2022-09-30 | 2022-12-16 | 武汉苏泊尔炊具有限公司 | Magnetic conductive material for cookware, preparation method thereof and cookware comprising magnetic conductive material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880850A (en) * | 2009-05-06 | 2010-11-10 | 慈溪光华金属复合材料有限公司 | Method for thermal spraying of composite bottom layer of aluminum pan of electromagnetic oven |
| CN105534318A (en) * | 2015-11-18 | 2016-05-04 | 浙江伯是购厨具有限公司 | Long-acting magnetic-conductive and anti-corrosion composite coating for electromagnetic cooker and preparation method of composite coating |
-
2016
- 2016-06-17 CN CN201610443171.0A patent/CN107510351B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880850A (en) * | 2009-05-06 | 2010-11-10 | 慈溪光华金属复合材料有限公司 | Method for thermal spraying of composite bottom layer of aluminum pan of electromagnetic oven |
| CN105534318A (en) * | 2015-11-18 | 2016-05-04 | 浙江伯是购厨具有限公司 | Long-acting magnetic-conductive and anti-corrosion composite coating for electromagnetic cooker and preparation method of composite coating |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107510351A (en) | 2017-12-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107510351B (en) | Cookware and preparation method thereof | |
| CN202287714U (en) | Inner pot for electromagnetic induction heating cooker | |
| CN108324119B (en) | Pot, preparation method thereof and cooking utensil | |
| CN106086763A (en) | Pan and preparation method thereof | |
| CN102835891A (en) | Wear-resistant coating non-stick pan | |
| CN104847685A (en) | Corrosion--resisting sea water pump | |
| CN104545487A (en) | Processing method of electromagnetic inner pot | |
| CN105801178A (en) | Ceramic inner pot and preparation method thereof | |
| JP2019010501A (en) | Ceramic pot, manufacturing method therefor, and cooking equipment | |
| CN114601342B (en) | Cooker and method of manufacturing cooker | |
| CN106086523A (en) | A kind of vane type fire pump of corrosion-resistant high-temperature antiscale low cost | |
| CN103614690A (en) | Sherardizing method of spherical graphite casting | |
| CN107303127B (en) | A kind of cooking pot tool and its manufacturing method | |
| CN105714166A (en) | Acid-base-resisting chemical pump | |
| CN106510476B (en) | Cookware | |
| CN101225458A (en) | Coatings capable of protecting metal and enhancing heat transfer during metallic object heating process | |
| CN101879675A (en) | Manufacture method of rotary pressing pot | |
| CN105455614A (en) | Manufacturing method of cooking device inner pot, corresponding inner pot and electric heating pot | |
| CN216137612U (en) | Wear-resistant non-stick coating structure for surface of cooker | |
| KR101226090B1 (en) | Anti-rust treatment method of the transformer enclosure | |
| CN108065749A (en) | A kind of method that ink indicia is formed on aqueous ceramic non-sticking lining and non-stick pan tool and its manufacturing method | |
| CN215077636U (en) | Graphite alkene on-stick pan | |
| CN209996040U (en) | Inner pot of cooking utensil and cooking utensil | |
| CN103343313A (en) | Method for improving abrasive resistance of overhang hardware fittings of power transmission line | |
| CN208211916U (en) | Electromagnetic induction heating pot tool and equipment of cooking |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |