Titanium cooking utensils and a method for manufacturing the same

Abstract

To provide a laser titanium cooker and a method for manufacturing the same that are related to a technical field of a super wear resistant carbide cooker.SOLUTION: A laser titanium cooker includes: a pot body 10; and a non-adhesive coating layer 20 provided at an inner surface of the pot body. The non-adhesive coating layer is a nano metal ceramic layer that is formed with super-high speed laser welding hardening. Or the non-adhesive coating layer is obtained by stacking the nano metal ceramic layer that is formed with super-high speed laser welding hardening and a nano-ceramic new material formed by hardening. Or the non-adhesive coating layer is configured by stacking the nano metal ceramic layer that is formed with super-high speed laser welding hardening and a nano-ceramic new material formed by hardening alternately a plurality of times. A laser titanium cooker includes a non-adhesive coating layer that is endurant non-adhesive, has high hardness, and is wear resistant.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to the technical field of super-hard and super-wear-resistant cooking utensils, and particularly to laser titanium cooking utensils and a manufacturing method thereof.

Background Art

[0002] The surface of a coated non-stick pan is usually coated with a paint having non-stick performance to achieve the non-stick function. Materials used for the non-stick coating layer of conventional cookware mainly include fluorine-containing paints and ceramic paints. Fluorine paints mainly include PTFE (polytetrafluoroethylene), PFOA (ammonium perfluorooctanoate), PFAS (copolymer of perfluoropropyl perfluorovinyl ether and polytetrafluoroethylene), FEP (polyperfluoroethylene propylene copolymer), ETFE (ethylene tetrafluoroethylene copolymer), etc. As its non-stick principle, it utilizes the fact that the fluorine-containing polymer has an extremely low surface free energy and a small coefficient of friction. However, the non-stick coating layer of the fluorine-containing paint is vulnerable to wear and prone to peeling. Also, because the surface roughness of the pan body is low, the non-stick coating layer attached to the surface of the pan body is easily scratched or scraped by a spatula or hard food. As a result, the lifespan of the non-stick coating layer is shortened, the non-stick property of the cookware gradually deteriorates, and eventually the non-stick property is also lost. Ceramic paint is a paint mainly composed of silicon-oxygen bonds and inorganic silicon, and achieves a non-stick effect by forming a nano-structure without pores on the surface of the pan body. However, the non-stick pan body of ceramic paint is usually made of aluminum material, and the expansion coefficient of the ceramic coating layer is much lower than that of aluminum. When it expands or contracts due to heat, the ceramic coating layer is prone to cracking. Generally, after 3 to 6 months of use, fine cracks occur on the surface of the coating layer, and the non-stick property begins to decline.

[0003] From the above, current non-stick pans generally have problems such as poor non-stick property due to the nature of the material itself, short-lasting non-stick property, and poor high-temperature resistance.

Summary of the Invention

Problems to be Solved by the Invention

[0004] The technical problem to be solved by the present invention is that the conventional non-stick pan has poor high-temperature resistance, low hardness, poor wear resistance, and a short service life.

Means for Solving the Problems

[0005] To solve the above problems, the present invention proposes the following technical solutions.

[0006] The present invention provides a laser titanium cooking appliance including a pan body and a non-stick coating layer provided on the inner surface of the pan body. The non-stick coating layer is a nano metal ceramic layer formed by ultra-high speed laser welding hardening. Or, the non-stick coating layer is obtained by laminating a nano metal ceramic layer formed by ultra-high speed laser welding hardening and a nano ceramic new material formed by hardening. Or, the non-stick coating layer is composed of a nano metal ceramic layer formed by ultra-high speed laser welding hardening and a nano ceramic new material formed by hardening being alternately laminated a plurality of times. The nano metal ceramic layer contains, by mass%, 15 to 45% of titanium metal-coated particles and 55 to 85% of a nano composite ceramic powder new material. The nano ceramic new material contains, by mass%, 20 to 30% of polymethylsiloxane, 0.5 to 20% of hydroxy silicone oil, 1 to 5% of low melting point glass powder, 6 to 10% of silica sol, 5 to 10% of silicon nitride, 5 to 10% of nano titania, 8 to 12% of nano alumina, 6 to 8% of nano titanium, 3 to 6% of a wetting dispersant, 2 to 4% of a thickener, and 10 to 15% of water. The nano composite ceramic powder new material is titanium nitride (TiN), titanium carbide (TiC), silicon carbide (SiC), titanium carbonitride (TiCN), titanium boride (TiB), aluminum oxide (Al2O3), lanthanum oxide (La2O3), yttrium oxide (Y2O3), zirconium oxide (ZrO), magnesium oxide (MgO), calcium hydroxyphosphate (Ca 10It is selected from at least one of (PO4)6(OH)2 and iron powder (Fe). The titanium metal-coated particles have a core-shell structure with three layers. The shell layer is titanium metal, the core layer is silicone oil, and the layer between the shell layer and the core layer is a resin layer. The resin layer is a mixture of polymethylsiloxane and iron powder. By mass%, the titanium metal accounts for 10 - 40%, polymethylsiloxane accounts for 55 - 70%, iron powder accounts for 0.5 - 2%, and the balance is silicone oil.

[0007] The mass fraction of SiO2 in the silica sol is 1 - 50%, and the average particle size range of SiO2 is 1 nm - 500 nm.

[0008] Furthermore, the titanium metal-coated particles have titanium metal as nano-scale titanium powder and iron powder as nano-scale, and specifically can be manufactured using the following procedure. 1. Add nano-scale iron powder to polymethylsiloxane and disperse it uniformly to obtain a resin solution. 2. Use the fine emulsion polymerization method for the resin solution and silicone oil to produce resin particles of resin-coated silicone oil with a smooth surface and a uniform particle size distribution. 3. Atomize the resin particles onto nano-scale titanium metal, uniformly adhere the nano-titanium metal to the surface of the resin particles, and achieve the effect that the titanium metal completely coats the resin particles to obtain the titanium metal-coated particles.

[0009] Note that silicone oil has non-stick properties but poor heat resistance. Coating silicone oil with a resin containing iron powder, and then coating it with titanium metal to obtain titanium metal-coated particles. Under high-temperature curing by ultra-high-speed laser welding, the titanium metal absorbs heat and melts, protecting the resin and silicone oil, and the resin and silicone oil can be stored in the coating layer. In the heating process when the cooking utensil is used, the resin in the nano-metal ceramic layer containing the titanium metal-coated particles thermally expands, and the silicone oil exudes out through the pores of the resin, enhancing the non-stick effect of the nano-metal ceramic layer. The addition of iron powder helps to enhance the heat resistance of the resin layer.

[0010] It is noteworthy that the addition of titanium metal-coated particles in the nano-metal ceramic layer helps to enhance the non-stick property of the coating layer. The ratio is preferably 15-45%, more preferably 20-35%. If the usage amount is too low, the non-stick effect of the nano-metal ceramic layer is poor. If the usage amount is too high, it will affect the bonding effect between the nano-metal ceramic layer and the new nano-ceramic material.

[0011] Furthermore, the surface of the non-stick coating layer away from the pan body is a new nano-ceramic material, and the surface of the non-stick coating layer adhered to the pan body is a nano-metal ceramic layer.

[0012] In addition, in the new nano-ceramic material, the wetting dispersant can be selected from tego sodium tripolyphosphate, and the thickener can be selected from swelling type emulsion (HASE) thickeners, which can be selected by those skilled in the art based on common technical knowledge, and the present invention is not limited thereto.

[0013] Furthermore, in order to obtain a nano-metal ceramic layer with high hardness, the new nano-composite ceramic powder material is selected from at least three or at least six of titanium nitride (TiN), titanium carbide (TiC), silicon carbide (SiC), titanium carbonitride (TiCN), titanium boride (TiB), aluminum oxide (Al2O3), lanthanum oxide (La2O3), yttrium oxide (Y2O3), zirconium oxide (ZrO), magnesium oxide (MgO), calcium hydroxyphosphate (Ca 10 (PO4)6(OH)2), iron powder (Fe).

[0014] Furthermore, the particle size of the new nano-composite ceramic powder material is 0.01-6 μm, and the particle size of the titanium metal-coated particles is 2-6 μm.

[0015] Furthermore, the thickness of the non-stick coating layer is 30-1000 μm. For example, the thickness of the non-stick coating layer is 30 μm, 80 μm, 100 μm, 200 μm, 500 μm, 800 μm, 1000 μm.

[0016] Furthermore, the thickness of the nano-metal ceramic layer is 5 to 20 μm. For example, the thickness of the nano-metal ceramic layer is 5 μm, 8 μm, 10 μm, 12 μm, 15 μm, 18 μm, 20 μm.

[0017] In addition, the nano-metal ceramic layer is characterized by high hardness and low toughness. During the forming process of the cooking appliance, the bottom of the pot needs to be shaped. If the thickness of the single-layer nano-metal ceramic layer is too high, its toughness is poor, so cracks may occur in the nano-metal ceramic layer, resulting in quality problems. Therefore, the thickness of the single-layer nano-metal ceramic layer should not be too thick, and 5 to 20 μm is appropriate. This thickness range can avoid the occurrence of minute cracks in the coating layer during the shaping of the bottom of the pot.

[0018] Furthermore, the thickness of the new nano-ceramic material is 1 to 8 μm. For example, the thickness of the new nano-ceramic material is 1 μm, 2 μm, 5 μm, 8 μm.

[0019] Furthermore, a superconducting magnetic layer with a thickness of 300 to 600 μm is provided on the outer surface of the pot body. For example, the thickness of the superconducting magnetic layer is 300 μm, 400 μm, 500 μm, 600 μm. Specifically, the superconducting magnetic layer is located at the bottom of the outer surface of the pot body.

[0020] Furthermore, by mass%, the superconducting magnetic layer contains 80 to 92% nickel-iron alloy, 0.03 to 2.5% toner, 2 to 6% graphene, 1 to 3.5% chromium powder, 4 to 6% molybdenum powder, 0.5 to 3% copper powder, and the mass content of nickel in the nickel-iron alloy is 65 to 79%.

[0021] Furthermore, the material of the pot body is any one of aluminum, iron, stainless steel, copper, titanium, and ceramic.

[0022] The present invention also provides a method for manufacturing the laser titanium cooking appliance according to the first aspect, including the steps of sandblasting a clean pot body and manufacturing a non-stick coating layer on the inner surface of the pot body. The manufacturing method of the non-stick coating layer includes heating the pan body to 120 - 180 °C, performing ultra-high speed laser welding hardening on the powder material of the nano-metal ceramic layer to obtain a nano-metal ceramic layer with a preset thickness, and then performing high-temperature welding hardening at 293 - 1693 °C to obtain the non-stick coating layer. Alternatively, the manufacturing method of the non-stick coating layer includes heating the pan body to 120 - 180 °C, performing ultra-high speed laser welding hardening on the powder material of the nano-metal ceramic layer to obtain a nano-metal ceramic layer, curing the paint of the nano-ceramic new material on the nano-metal ceramic layer to obtain the nano-ceramic new material, and then performing high-temperature welding hardening at 293 - 1693 °C to obtain a non-stick coating layer with a preset thickness. Alternatively, the manufacturing method of the non-stick coating layer includes heating the pan body to 120 - 180 °C, performing ultra-high speed laser welding hardening on the powder material of the nano-metal ceramic layer to obtain a nano-metal ceramic layer in S2, curing the paint of the nano-ceramic new material on the nano-metal ceramic layer to obtain the nano-ceramic new material in S3, repeating steps S2 - S3 to a preset thickness, and performing high-temperature welding hardening at 293 - 1693 °C to fabricate the non-stick coating layer.

[0023] Specifically, the ultra-high speed laser welding hardening of the nano-metal ceramic layer includes the following. After heating the pan body to 120 - 180 °C, laser thermal hardening of the powder material of the nano-metal ceramic layer is performed on the inner surface of the dried and clean pan body. The process parameters of the hardening are output 1.5 - 2 kW, scanning speed 8 - 12 mm / s, spot diameter 3 mm, argon gas flow rate 20 - 30 L / min, and powder feeding speed 8 g / min. After natural cooling for 15 - 20 seconds, a laser thermal hardening coating layer is fabricated on the inner surface of the pan body. After cleaning the surface of the laser thermal hardening coating layer with argon gas at a pressure of 1 - 2 MPa, ultra-high speed laser re-welding is performed to obtain the nano-metal ceramic layer. The process parameters of the ultra-high speed laser re-welding are output 100 - 250 W, scanning speed 10 - 12 mm / s, spot diameter 4 - 6 mm, and argon gas flow rate 20 - 30 L / min.

[0024] Specifically, obtaining the new nano-ceramic material by curing the paint of the new nano-ceramic material on the nano-metal ceramic layer includes the following. After obtaining the nano-metal ceramic layer by the ultra-high-speed laser re-welding process, it is cleaned with argon gas at a pressure of 1.0-2.0 Mpa within 20-30 seconds, and the paint of the new nano-ceramic material is cured. Set the distance between the spray gun and the surface of the pot body to 15-30 cm to ensure that the paint of the new nano-ceramic material covers all the nano-metal ceramic layers. Utilize the residual heat of the ultra-high-speed laser re-welding technology to cure the paint of the new nano-ceramic material to obtain the new nano-ceramic material.

[0025] Specifically, in the solution where the non-stick coating layer is composed of a nano-metal ceramic layer formed by ultra-high-speed laser welding and curing and a new nano-ceramic material formed by curing, which are alternately stacked multiple times, during manufacturing, taking steps S2-S3 as one cycle, the nano-metal ceramic layer and the new nano-ceramic material are alternately processed on the inner surface of the pot body 2-50 times to reach a preset thickness. The non-stick coating layer is obtained. In actual implementation, after the laser thermal curing in step S2 of each cycle, the time interval from ultra-high-speed laser re-welding is 10-20 seconds, the time interval from ultra-high-speed laser re-welding to the curing in step S3 is 20-30 seconds, and the time interval of each cycle is 30-50 seconds. Thereby, on the premise of ensuring the process quality, the processing efficiency can be greatly improved.

[0026] In addition, in the manufacturing method, high-temperature welding and curing is for further curing and bonding the non-stick coating layer with the pot body to enhance the bonding force between the two, and the temperature depends on the material of the pot body. For example, when the material of the pot body is stainless steel, the temperature of high-temperature welding and curing is between 1100-1300 °C. When the material of the pot body is aluminum, the temperature of high-temperature welding and curing is 293-500 °C.

[0027] For better understanding, in the manufacturing method of the present invention, the thermal energy used in the production of the non-stick coating layer is an ultra-high-speed laser. However, the protection scope of the present invention is not limited to the manufacturing technology using laser energy, but also includes manufacturing technologies using heat sources such as laser plasma, plasma, and electron beams.

[0028] Furthermore, it further includes performing ultra-high-speed laser welding and hardening of the superconducting magnetic layer on the outer surface of the pot body.

[0029] Specifically, laser thermal hardening of the powder material of the superconducting magnetic layer is performed on the outer surface of the pot body. The process parameters for hardening are: output 1.5 - 2 kW, scanning speed 8 - 12 mm / s, spot diameter 3 mm, argon gas flow rate 20 - 30 L / min, and powder feeding speed 8 g / min. After natural cooling for 15 - 20 seconds, a laser thermal hardening coating layer is formed on the outer surface of the pot body. After cleaning the surface of the laser thermal hardening coating layer with argon gas at a pressure of 1 - 2 MPa, ultra-high-speed laser re-welding is performed to obtain the superconducting magnetic layer. The process parameters for the ultra-high-speed laser re-welding are: output 100 - 250 W, scanning speed 10 - 12 mm / s, spot diameter 4 - 6 mm, and argon gas flow rate 20 - 30 L / min.

[0030] In other embodiments, the overall manufacturing method for manufacturing the laser titanium cooking utensil includes: 1) stretching and forming of the wafer, 2) edge processing, 3) cleaning, 4) sandblasting, 5) manufacturing of the non-stick coating layer, 6) inner polishing, 7) outer sanding, 8) ultra-high-speed laser welding and hardening of the superconducting magnetic layer manufactured according to the implementation method and implementation parameters of step S5, 9) sanding, 10) hardening, 11) assembly, 12) packaging.

[0031] It should be noted that the laser titanium cooking utensils provided by the present invention include all tableware and cooking utensils.

[0032] Preferably, the non-stick coating layer of the present invention is composed of a plurality of nano-metal ceramic layers formed by ultra-high-speed laser welding and hardening and nano-ceramic new materials formed by hardening, which are alternately stacked multiple times.

Effects of the Invention

[0033] Compared with the prior art, the technical effects achievable by the present invention include the following. The laser titanium cooking appliance provided by the present invention includes a pot body and a non-stick coating layer provided on the inner surface of the pot body. The non-stick coating layer is a nano metal ceramic layer formed by ultra-high speed laser welding hardening. Or, the non-stick coating layer is obtained by laminating a nano metal ceramic layer formed by ultra-high speed laser welding hardening and a nano ceramic new material formed by hardening. Or, the non-stick coating layer is composed of a nano metal ceramic layer formed by ultra-high speed laser welding hardening and a nano ceramic new material formed by hardening being alternately laminated a plurality of times. The nano metal ceramic layer therein contains titanium metal-coated particles coated with resin and silicone oil. When combined with a nano composite ceramic powder new material and subjected to ultra-high speed laser welding hardening, the resin and silicone oil in the titanium metal-coated particles can be effectively stored in the coating layer, enabling the nano metal ceramic layer to have both high hardness and non-stick properties. The nano ceramic new material is formed on the surface of the nano ceramic layer during the hardening process by a combination of components such as polymethylsiloxane, hydroxy silicone oil, low melting point glass powder, silica sol, silicon nitride, nano titania, nano alumina, nano titanium, etc., and also has the effects of high hardness and non-stick properties. In a preferred embodiment, the nano metal ceramic layer and the nano ceramic new material are alternately laminated to achieve the effects of high hardness, wear resistance, and long-lasting non-stick properties of the non-stick coating layer.

[0034] In addition, when manufacturing the laser titanium cooking appliance of the present invention, first, ultra-high-speed laser welding hardening is performed to form a nano metal ceramic layer. Utilizing the residual heat effect of laser welding, a new nano ceramic material is formed on the surface of the nano metal ceramic layer by hardening, improving the adhesion effect of the new nano ceramic material and enhancing the bonding strength between the two coating layers. At the same time, the components of the nano metal ceramic layer and the new nano ceramic material have a certain similarity, which is advantageous for the bonding between the two coating layers. In a preferred embodiment, the non-stick coating layer is obtained by stacking the above two types of coating layers alternately multiple times. The two coating layers have both high hardness and non-stick properties. Moreover, the bonding strength between the two is strong, and the non-stick coating layer achieves the effects of high hardness, wear resistance, and long-lasting non-stickiness.

Brief Description of the Drawings

[0035] To more clearly illustrate the technical aspects of the embodiments of the present invention, the drawings required for use in the description of the embodiments are briefly described below. Obviously, the drawings in the following description are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without creative labor.

[0036]

Figure 1

Figure 2

Figure 3

Figure 4

Modes for Carrying Out the Invention

[0037] The following clearly and completely describes the technical aspects in the embodiments with reference to the drawings in the embodiments of the present invention. Similar component numbers in the drawings represent similar components. It is obvious that the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present invention.

[0038] As used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or sets thereof.

[0039] It should also be understood that the terms used in the specification of the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present invention. As used in the specification of the embodiments of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0040] (Embodiment 1) Referring to FIGS. 1 to 3, an embodiment of the present invention provides a laser titan cooking appliance. As is clear from the figures, the laser titan cooking appliance includes a pot body 10, a non-stick coating layer 20 provided on the inner surface of the pot body, and a superconducting magnetic layer 30 provided on the outer surface of the pot body. The non-stick coating layer 20 is composed of a plurality of nano-metal ceramic layers 21 formed by ultra-high-speed laser welding hardening and nano-ceramic new materials 22 formed by hardening, which are alternately stacked multiple times. Here, the surface of the non-stick coating layer 20 away from the pot body 10 is the nano-ceramic new material 22, and the surface of the non-stick coating layer 20 adhered to the pot body 10 is the nano-metal ceramic layer 21.

[0041] The nano-metal ceramic layer contains, by mass, 30% of titanium metal-coated particles and 70% of a new nano-composite ceramic powder material. The new nano-composite ceramic powder material includes TiN, TiC, SiC, TiCN, TiB, Al2O3, La2O3, Y2O3, ZrO, MgO, Ca 10 (PO4)6(OH)2, and Fe.

[0042] The new nano-ceramic material contains, by mass, 25% of polymethylsiloxane, 10% of hydroxy silicone oil, 3% of low melting point glass powder, 10% of silica sol, 7% of silicon nitride, 10% of nano-titania, 10% of nano-alumina, 7% of nano-titanium, 3% of wetting dispersant, 3% of thickener, and 12% by mass of water.

[0043] Referring to FIG. 4, the titanium metal-coated particles have a core-shell structure with three layers. The shell layer 41 is made of titanium metal, the core layer 43 is made of silicone oil, and between the shell layer 41 and the core layer 43 is a resin layer 42. The resin layer 42 is a mixture of polymethylsiloxane and iron powder. By mass, the titanium metal accounts for 30%, the polymethylsiloxane accounts for 58%, the iron powder accounts for 2%, and the balance is silicone oil.

[0044] In this embodiment, the titanium metal-coated particles are such that the titanium metal is nano-scale titanium powder and the iron powder is nano-scale. Specifically, they can be manufactured using the following procedure. 1. Add nano-scale iron powder to polymethylsiloxane and disperse it uniformly to obtain a resin solution. 2. Use the fine emulsion polymerization method to produce resin particles of resin-coated silicone oil with a smooth surface and a uniform particle size distribution from the resin solution and silicone oil. 3. Atomize the resin particles onto nano-scale titanium metal, uniformly adhere the nano-titanium metal to the surface of the resin particles, and achieve the effect that the titanium metal completely coats the resin particles to obtain the titanium metal-coated particles.

[0045] In this embodiment, the thickness of the superconducting magnetic layer is 500 μm, and the components of the superconducting magnetic layer are 85% nickel-iron alloy, 1.8% toner, 4% graphene, 2.2% chromium powder, 5% molybdenum powder, and 2% copper powder. The mass content of nickel in the nickel-iron alloy is 70%, and the particle size of the above powders is 0.01 - 6 microns.

[0046] In this embodiment, the particle size of the new nano-composite ceramic powder material is 0.01 - 6 microns, and the particle size of the titanium metal-coated particles is 2 - 6 microns.

[0047] In this embodiment, the thickness of the non-stick coating layer is 300 μm. Here, the thickness of the nano-metal ceramic layer is 10 μm, and the thickness of the new nano-ceramic material is 5 μm, and they are stacked alternately 20 times.

[0048] In this embodiment, the material of the pot body is stainless steel.

[0049] The embodiment of the present invention also provides a manufacturing method of the above laser titanium cooking appliance, including the following steps. S1. Sandblast the clean pot body. S2. Heat the pot body to 120 - 180 °C and perform ultra-high-speed laser welding hardening of the nano-metal ceramic layer. S3. Apply the new nano-ceramic material on the nano-metal ceramic layer. S4. Repeat steps S2 - S3 to the preset thickness, and perform high-temperature welding hardening at 1200 °C to manufacture the non-stick coating layer. S5. Perform ultra-high-speed laser welding hardening of the superconducting magnetic layer on the outer surface of the pot body.

[0050] Specifically, in this embodiment, in step S2, after heating the pot body to 180°C, laser thermal curing of the powder material of the nano-metal ceramic layer is performed on the inner surface of the dry and clean pot body. The process parameters of the curing are an output of 1.8 kW, a scanning speed of 10 mm / s, a spot diameter of 3 mm, an argon gas flow rate of 25 L / min, and a powder feeding speed of 8 g / min. After natural cooling for 15 seconds, a laser thermal curing coating layer is formed on the inner surface of the pot body. After cleaning the surface of the laser thermal curing coating layer with argon gas at a pressure of 1.3 MPa, ultra-high-speed laser re-welding is performed to obtain a nano-metal ceramic layer. The process parameters of the ultra-high-speed laser re-welding are an output of 250 W, a scanning speed of 12 mm / s, a spot diameter of 5 mm, and an argon gas flow rate of 28 L / min.

[0051] Specifically, in this embodiment, in step S3, after obtaining the nano-metal ceramic layer by the ultra-high-speed laser re-welding treatment, it is cleaned with argon gas at a pressure of 1.0 Mpa within 20 seconds, and the curing of the paint of the new nano-ceramic material is performed. The distance between the spray gun and the surface of the pot body is set to 15 cm to ensure that the paint of the new nano-ceramic material covers all the nano-metal ceramic layers. The heat remaining from the ultra-high-speed laser re-welding technology is utilized to cure the paint of the new nano-ceramic material to obtain the new nano-ceramic material.

[0052] Specifically, in this embodiment, in step S5, laser thermal curing of the powder material of the superconducting magnetic layer is performed on the outer surface of the pot body. The process parameters of the curing are an output of 1.5 kW, a scanning speed of 8 mm / s, a spot diameter of 3 mm, an argon gas flow rate of 25 L / min, and a powder feeding speed of 8 g / min. After natural cooling for 15 seconds, a laser thermal curing coating layer is formed on the outer surface of the pot body. After cleaning the surface of the laser thermal curing coating layer with argon gas at a pressure of 1 - 2 MPa, ultra-high-speed laser re-welding is performed to obtain a superconducting magnetic layer. The process parameters of the ultra-high-speed laser re-welding are an output of 250 W, a scanning speed of 12 mm / s, a spot diameter of 4 mm, and an argon gas flow rate of 20 L / min.

[0053] In other embodiments, the overall manufacturing method for manufacturing the laser titanium cooking appliance includes: 1) stretching and forming of the wafer, 2) edge processing, 3) cleaning, 4) sandblasting, 5) the implementation method and implementation parameters of steps S2 - S4, 6) inner brightening, 7) outer sanding, 8) ultra - high - speed laser welding hardening of the superconducting magnetic layer manufactured according to the implementation method and implementation parameters of step S5, 9) sanding, 10) hardening, 11) assembly, and 12) packaging.

[0054] (Example 2) The laser titanium cooking appliance according to the embodiment of the present invention includes a pot body, a non - stick coating layer provided on the inner surface of the pot body, and a superconducting magnetic layer provided on the outer surface of the pot body. The non - stick coating layer is composed of a nano - metal ceramic layer formed by ultra - high - speed laser welding hardening and a nano - ceramic new material formed by hardening, which are alternately stacked multiple times. Here, the surface of the non - stick coating layer away from the pot body is the nano - ceramic new material, and the surface of the non - stick coating layer adhered to the pot body is the nano - metal ceramic layer.

[0055] The nano - metal ceramic layer contains, by mass percentage, 25% of titanium - metal - coated particles and 75% of a nano - composite ceramic powder new material. The nano - composite ceramic powder new material is TiN, TiC, SiC, TiCN, TiB, Al2O3, La2O3, Y2O3, ZrO, MgO, Ca 10 (PO4)6(OH)2, Fe.

[0056] The nano - ceramic new material contains, by mass percentage, 25% of polymethylsiloxane, 10% of hydroxysilicone oil, 3% of low - melting - point glass powder, 10% of silica sol, 7% of silicon nitride, 10% of nano - titania, 10% of nano - alumina, 7% of nano - titanium, 3% of wetting dispersant, 3% of thickener, and 12% of water.

[0057] The titanium metal-coated particles have a core-shell structure with three layers. The shell layer is made of titanium metal, the core layer is silicone oil, and between the shell layer and the core layer is a resin layer. The resin layer is a mixture of polymethylsiloxane and iron powder. By mass percentage, the titanium metal accounts for 30%, polymethylsiloxane accounts for 58%, iron powder accounts for 2%, and the balance is silicone oil.

[0058] In this example, the titanium metal-coated particles have titanium metal in the form of nanoscale titanium powder and the iron powder is also nanoscale, and they can be specifically manufactured using the following procedure. 1. Add nanoscale iron powder to polymethylsiloxane and disperse it uniformly to obtain a resin solution. 2. Use the fine emulsion polymerization method to prepare particles with a smooth surface and a uniform particle size distribution to obtain resin particles of resin-coated silicone oil. 3. Atomize the resin particles onto nanoscale titanium metal to uniformly adhere the nanoscale titanium metal to the surface of the resin particles, achieving the effect of completely coating the resin particles with titanium metal to obtain the titanium metal-coated particles.

[0059] In this example, the thickness of the superconducting magnetic layer is 450 μm, and the components of the superconducting magnetic layer are 85% nickel-iron alloy, 1.8% toner, 4% graphene, 2.2% chromium powder, 5% molybdenum powder, and 2% copper powder. The mass content of nickel in the nickel-iron alloy is 70%.

[0060] In this example, the particle size of the nano-composite ceramic powder new material is 0.01 - 6 microns, and the particle size of the titanium metal-coated particles is 2 - 6 microns.

[0061] In this example, the thickness of the non-stick coating layer is 300 μm. Here, the thickness of the nano-metal ceramic layer is 8 μm, the thickness of the nano-ceramic new material is 7 μm, and they are stacked alternately 20 times.

[0062] In this example, the material of the pot body is stainless steel.

[0063] Embodiments of the present invention also provide a method for manufacturing the above laser titanium cooking appliance, including the following steps. S1. Sandblast a clean pot body. S2. Heat the pot body to 120-180°C and perform ultra-high-speed laser welding hardening on the nano metal ceramic layer. S3. Apply a new nano ceramic material on the nano metal ceramic layer. S4. Repeat steps S2-S3 to a preset thickness and perform high-temperature welding hardening at 1200°C to manufacture a non-stick coating layer. S5. Perform ultra-high-speed laser welding hardening on the outer surface of the pot body for the superconducting magnetic layer.

[0064] Specifically, in this embodiment, in step S2, after heating the pot body to 150°C, laser thermal hardening of the powder material of the nano metal ceramic layer is performed on the inner surface of the dry and clean pot body. The process parameters of the hardening are an output of 2.0 kW, a scanning speed of 11 mm / s, a spot diameter of 3 mm, an argon gas flow rate of 25 L / min, and a powder feeding speed of 8 g / min. After natural cooling for 15 seconds, a laser thermal hardening coating layer is formed on the inner surface of the pot body. After cleaning the surface of the laser thermal hardening coating layer with argon gas at a pressure of 1.3 MPa, ultra-high-speed laser re-welding is performed to obtain a nano metal ceramic layer. The process parameters of the ultra-high-speed laser re-welding are an output of 250 W, a scanning speed of 12 mm / s, a spot diameter of 5 mm, and an argon gas flow rate of 28 L / min.

[0065] Specifically, in step S3, after obtaining the nano metal ceramic layer by the ultra-high-speed laser re-welding treatment, it is cleaned with argon gas at a pressure of 1.0 Mpa within 20 seconds, and the hardening of the paint of the new nano ceramic material is performed. Set the distance between the spray gun and the pot body surface to 15 cm to ensure that the paint of the new nano ceramic material covers all the nano metal ceramic layers. Utilize the residual heat of the ultra-high-speed laser re-welding technology to harden the paint of the new nano ceramic material to obtain a new nano ceramic material.

[0066] Specifically, in step S5, laser thermal curing of the powder material of the superconducting magnetic layer is performed on the outer surface of the pot body. The process parameters for curing are an output of 1.8 kW, a scanning speed of 8 mm / s, a spot diameter of 3 mm, an argon gas flow rate of 25 L / min, and a powder feeding speed of 8 g / min. After natural cooling for 15 seconds, a laser thermal curing coating layer is formed on the outer surface of the pot body. After cleaning the surface of the laser thermal curing coating layer with argon gas at a pressure of 1 to 2 MPa, ultra-high speed laser remelting is performed to obtain a superconducting magnetic layer. The process parameters for the ultra-high speed laser remelting are an output of 250 W, a scanning speed of 11 mm / s, a spot diameter of 4 mm, and an argon gas flow rate of 20 L / min.

[0067] In other embodiments, the overall manufacturing method for manufacturing the laser titanium cooking appliance includes: 1) stretching and forming of the wafer, 2) edge processing, 3) cleaning, 4) sandblasting, 5) the implementation method and implementation parameters of steps S2 to S4, 6) inner surface polishing, 7) outer surface sanding, 8) ultra-high speed laser welding and curing of the superconducting magnetic layer manufactured according to the implementation method and implementation parameters of step S5, 9) sanding, 10) curing, 11) assembly, and 12) packaging.

[0068] (Example 3) Embodiments of the present invention provide a laser titanium cooking appliance and a manufacturing method thereof, including a pot body, a non-stick coating layer provided on the inner surface of the pot body, and a superconducting magnetic layer provided on the outer surface of the pot body. The non-stick coating layer is composed of a plurality of nano-metal ceramic layers formed by ultra-high speed laser welding and curing and nano-ceramic new materials formed by curing, which are alternately stacked multiple times. Here, the surface of the non-stick coating layer away from the pot body is a nano-ceramic new material, and the surface of the non-stick coating layer bonded to the pot body is a nano-metal ceramic layer.

[0069] The nano-metal ceramic layer contains, by mass%, 20% of titanium metal-coated particles and 80% of a new nano-composite ceramic powder material. The new nano-composite ceramic powder material is TiN, TiC, SiC, TiCN, TiB, Al2O3, La2O3, Y2O3, ZrO, MgO, Ca 10 (PO4)6(OH)2, Fe.

[0070] The above new nano-ceramic material contains, by mass percentage, 25% of polymethylsiloxane, 10% of hydroxy silicone oil, 3% of low melting point glass powder, 10% of silica sol, 7% of silicon nitride, 10% of nano-titania, 10% of nano-alumina, 7% of nano-titanium, 3% of wetting dispersant, 3% of thickener, and 12% of water.

[0071] The above titanium metal-coated particles have a core-shell structure with three layers. The shell layer is made of titanium metal, the core layer is made of silicone oil, and the layer between the shell layer and the core layer is a resin layer. The resin layer is a mixture of polymethylsiloxane and iron powder. By mass percentage, the titanium metal accounts for 30%, the polymethylsiloxane accounts for 58%, the iron powder accounts for 2%, and the balance is silicone oil.

[0072] In this embodiment, the titanium metal-coated particles are such that the titanium metal is nano-scale titanium powder and the iron powder is nano-scale. Specifically, they can be manufactured using the following procedure. 1. Add nano-scale iron powder to polymethylsiloxane and disperse it uniformly to obtain a resin solution. 2. Use the fine emulsion polymerization method to prepare particles with a smooth surface and a uniform particle size distribution to obtain resin particles of resin-coated silicone oil. 3. Atomize the above resin particles with nano-scale titanium metal to uniformly adhere the nano-titanium metal to the surface of the resin particles, achieving the effect that the titanium metal completely coats the resin particles, and obtaining the above titanium metal-coated particles.

[0073] In this embodiment, the thickness of the superconducting magnetic layer is 400 μm. The components of the superconducting magnetic layer are 85% nickel-iron alloy, 1.8% toner, 4% graphene, 2.2% chromium powder, 5% molybdenum powder, and 2% copper powder. The mass content of nickel in the nickel-iron alloy is 70%.

[0074] In this embodiment, the particle size of the new nano-composite ceramic powder material is 0.01 - 6 microns, and the particle size of the titanium metal-coated particles is 2 - 6 microns.

[0075] In this embodiment, the thickness of the non-stick coating layer is 150 μm. The thickness of the nano-metal ceramic layer is 12 μm, and the thickness of the new nano-ceramic material is 3 μm, and they are stacked alternately 10 times.

[0076] In this embodiment, the material of the pot body is aluminum.

[0077] The embodiment of the present invention also provides a manufacturing method of the above laser titanium cooking appliance, including the following steps. S1. Sandblast the clean pot body. S2. Heat the pot body to 120 - 180 °C and perform ultra-high-speed laser welding hardening on the nano-metal ceramic layer. S3. Apply the new nano-ceramic material on the nano-metal ceramic layer. S4. Repeat steps S2 - S3 to the preset thickness, and perform high-temperature welding hardening at 450 °C to manufacture the non-stick coating layer. S5. Perform ultra-high-speed laser welding hardening on the outer surface of the pot body for the superconducting magnetic layer.

[0078] Specifically, in this embodiment, in step S2, after heating the pot body to 160 °C, laser thermal hardening of the powder material of the nano-metal ceramic layer is performed on the inner surface of the dry and clean pot body. The process parameters of the hardening are output 2.0 kW, scanning speed 10 mm / s, spot diameter 3 mm, argon gas flow rate 25 L / min, and powder feeding speed 8 g / min. After natural cooling for 15 seconds, a laser thermal hardening coating layer is made on the inner surface of the pot body. After cleaning the surface of the laser thermal hardening coating layer with argon gas at a pressure of 1.5 MPa, ultra-high-speed laser re-welding is performed to obtain the nano-metal ceramic layer. The process parameters of the ultra-high-speed laser re-welding are output 200 W, scanning speed 12 mm / s, spot diameter 5 mm, and argon gas flow rate 28 L / min.

[0079] Specifically, in step S3, after obtaining the nano-metal ceramic layer by the ultra-high speed laser re-welding process, it is cleaned with argon gas at a pressure of 1.0 Mpa within 20 seconds, and the paint of the new nano-ceramic material is cured. The distance between the spray gun and the surface of the pot body is set to 15 cm to ensure that the paint of the new nano-ceramic material covers all the nano-metal ceramic layers. Utilize the residual heat of the ultra-high speed laser re-welding technology to cure the paint of the new nano-ceramic material and obtain the new nano-ceramic material.

[0080] Specifically, in step S5, laser thermal curing of the powder material of the superconducting magnetic layer is performed on the outer surface of the pot body. The process parameters of the curing are output 1.5 kW, scanning speed 8 mm / s, spot diameter 3 mm, argon gas flow rate 25 L / min, and powder feeding speed 8 g / min. After natural cooling for 15 seconds, a laser thermal curing coating layer is fabricated on the outer surface of the pot body. After cleaning the surface of the laser thermal curing coating layer with argon gas at a pressure of 1 - 2 MPa, ultra-high speed laser re-welding is performed to obtain the superconducting magnetic layer. The process parameters of the ultra-high speed laser re-welding are output 200 W, scanning speed 8 mm / s, spot diameter 4 mm, and argon gas flow rate 20 L / min.

[0081] In other embodiments, the overall manufacturing method for manufacturing the laser titanium cooking appliance includes: 1) stretching and forming of the wafer, 2) edge processing, 3) cleaning, 4) sandblasting, 5) the implementation method and implementation parameters of steps S2 - S4, 6) inner surface polishing, 7) outer surface sanding, 8) ultra-high speed laser welding and curing of the superconducting magnetic layer manufactured according to the implementation method and implementation parameters of step S5, 9) sanding, 10) curing, 11) assembly, 12) packaging.

[0082] (Comparative Example 1) The difference from Example 1 is that the non-stick coating layer is a nano-metal ceramic layer formed by ultra-high speed laser welding and curing, and does not contain the new nano-ceramic material. During manufacturing, due to the high hardness and poor toughness of the nano-metal ceramic layer, cracks occur in the process of shaping the bottom of the pot for the obtained cooking appliance, which does not meet the quality requirements of the product.

[0083] (Comparative Example 2) The difference from Example 1 is that the non-stick coating layer is a new nano-ceramic material formed by curing and does not contain a nano-metal ceramic layer.

[0084] (Comparative Example 3) The difference from Example 1 is that the composition of the nano-metal ceramic layer is 10% titanium metal-coated particles and 90% new nano-composite ceramic powder material.

[0085] (Comparative Example 4) The difference from Example 1 is that the composition of the nano-metal ceramic layer is 60% titanium metal-coated particles and 40% new nano-composite ceramic powder material.

[0086] (Comparative Example 5) The difference from Example 1 is that the composition of the nano-metal ceramic layer does not contain titanium metal-coated particles, and instead, the same proportion of nano-titanium powder, resin, and silicone oil is used.

[0087] (Comparative Example 6) The difference from Example 1 is that the thickness of the non-stick coating layer is 300 μm. Here, the thickness of the nano-metal ceramic layer is 25 μm, and the thickness of the new nano-ceramic material is 5 μm, and they are stacked alternately 20 times.

[0088] (Comparative Example 7) The difference from Example 1 is that the cookware body does not contain a superconducting magnetic layer, and the manufacturing method does not include step S5.

[0089] (Performance Test) Perform performance tests on the cooking utensils provided in Example 1 and Comparative Examples 1 to 7. The test results are shown in Table 1 below.

[0090] Among them, the abrasion resistance test method is to apply a static vertical pressure of 3 kg on the cooking appliance using a 3M-7447 sponge, perform reciprocating friction, with one cycle for forward and backward movement, replace the sponge every 1000 times, and record the number of cycles.

[0091] The high-temperature resistance test method is to place the cooking appliance in an incubator at 350 ± 5 °C and hold it for 0.5 hours, and after taking it out, let it cool naturally to room temperature. After the test, if there are no abnormalities such as discoloration, foaming, dissolution, peeling, and cracking in the coating layer of the cooking appliance, it is determined that the cooking appliance can withstand this temperature. Furthermore, gradually increase the temperature of the incubator at a temperature gradient of 50 °C to test the maximum service temperature of the cooking appliance.

[0092] The test method for persistent non-stickiness is to heat the surface temperature of the pot body to 140 °C - 150 °C, pour in the egg liquid with the shell broken, continue to heat it to 190 °C - 240 °C, and after the egg white is basically coagulated, turn over the egg with a plastic cup and record the maximum number of egg frying times with the non-stick effect.

[0093] The test method for hardness is measured according to the provisions of GB / T 40737-2021, and 500 HV is used as the laser titanium hardness qualification standard according to the enterprise standard.

[0094] The test method for thermal efficiency is to turn on the intelligent program frequency conversion power supply device, set the voltage to 220V, press the start switch, and then press the display power switch. Add 500 ml of normal temperature clear water to the sample. Turn on the power of the induction cooker, adjust it to the maximum power stage for heating, record the power and time when the water boils until the water boils, and calculate the thermal efficiency.

[0095] The test methods and standards for the adhesion fastness, heat shock stability, alkali resistance, acid resistance, and salt water corrosion resistance of the coating layer are all carried out according to the test items and test methods required by the national standard GB / T 2421-1998.

[0096]

Table 1

[0097] From the results in Table 1, the laser titanium cooking appliance according to Example 1 of the present invention has good hardness and wear resistance, can withstand a high temperature of 550 °C, and moreover has permanent non-stick properties. This is due to the effects of high hardness, wear resistance, and permanent non-stick properties of the non-stick coating layer caused by the nano metal ceramic layer and the nano ceramic new material being alternately stacked. The cooking appliance of Comparative Example 2 has only the nano ceramic new material and has a certain non-stick property, but has poor wear resistance and a poor permanent non-stick effect. In the cooking appliance of Comparative Example 3, the content of titanium metal-coated particles in the nano metal ceramic layer is low, which affects the hardness and permanent non-stick properties of the coating layer. In the cooking appliance of Comparative Example 4, the content of titanium metal-coated particles in the nano metal ceramic layer is high, and since the titanium metal-coated particles contain resin and silicone oil, the bonding force between the nano ceramic new material and the nano metal ceramic layer is weak, which affects the hardness and permanent non-stick properties of the non-stick coating layer, and at the same time, the adhesion between the coating layers is low and the wear resistance is also poor. The titanium metal-coated particles in Comparative Example 5 are replaced with the same ratio of nano titanium powder, resin, and silicone oil. When ultra-high-speed laser welding hardening is performed, the resin and silicone oil evaporate at high temperature, and the obtained nano metal ceramic layer loses the non-stick effect. Therefore, after the surface layer of the non-stick coating layer - the nano ceramic new material wears out, the cooking appliance loses the non-stick effect. The thickness of the nano metal ceramic layer in Comparative Example 6 is 25 μm. When shaping the cooking appliance, minute cracks occur in this coating layer, and even if the cracks are covered by the nano ceramic new material, they may crack significantly at high temperature. From the data of Comparative Example 7, it can be seen that the magnetic permeability of the superconducting magnetic layer is high, and the thermal efficiency of the cooking appliance can be significantly increased during use.

[0098] In the above embodiments, each embodiment description focuses on its own aspects. For parts not described in detail in a certain embodiment, relevant descriptions of other embodiments can be referred to.

[0099] The above are specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed by the present invention, and these modifications or substitutions should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention shall conform to the scope of the claims.

[0100] (Appendix) (Appendix 1) A laser titanium cooking appliance, comprising a pot body and a non-stick coating layer provided on the inner surface of the pot body, wherein the non-stick coating layer is a nano-metal ceramic layer formed by ultra-high speed laser welding hardening, or the non-stick coating layer is obtained by overlapping a nano-metal ceramic layer formed by ultra-high speed laser welding hardening and a nano-ceramic new material formed by hardening, or the non-stick coating layer is composed of a nano-metal ceramic layer formed by ultra-high speed laser welding hardening and a nano-ceramic new material formed by hardening being alternately overlapped a plurality of times. The nano-metal ceramic layer contains, by mass%, 15 to 45% of titanium metal-coated particles and 55 to 85% of a nano-composite ceramic powder new material. The nano-ceramic new material contains, by mass%, 20 to 30% of polymethylsiloxane, 0.5 to 20% of hydroxy silicone oil, 1 to 5% of low melting point glass powder, 6 to 10% of silica sol, 5 to 10% of silicon nitride, 5 to 10% of nano-titania, 8 to 12% of nano-alumina, 6 to 8% of nano-titanium, 3 to 6% of a wetting dispersant, 2 to 4% of a thickener, and 10 to 15% of water. The nano-composite ceramic powder new material is selected from at least one of titanium nitride, titanium carbide, silicon carbide, titanium carbonitride, titanium boride, aluminum oxide, lanthanum oxide, yttrium oxide, zirconium oxide, magnesium oxide, calcium hydroxyphosphate, and iron powder. The titanium metal-coated particles have a core-shell structure with three layers. The shell layer is made of titanium metal, the core layer is silicone oil, and between the shell layer and the core layer is a resin layer. The resin layer is a mixture of polymethylsiloxane and iron powder. By mass percentage, the titanium metal accounts for 10 - 40%, the polymethylsiloxane accounts for 55 - 70%, the iron powder accounts for 0.5 - 2%, and the balance is silicone oil. A laser titanium cooking appliance, characterized by the above.

[0101] (Appendix 2) The particle size of the nano-composite ceramic powder new material is 0.01 - 6 μm, and the particle size of the titanium metal-coated particles is 2 - 6 μm. The laser titanium cooking appliance according to Appendix 1, characterized by the above.

[0102] (Appendix 3) The thickness of the non-stick coating layer is 30 - 1000 μm. The laser titanium cooking appliance according to Appendix 1, characterized by the above.

[0103] (Appendix 4) The thickness of the nano-metal ceramic layer is 5 - 20 μm. The laser titanium cooking appliance according to Appendix 1, characterized by the above.

[0104] (Appendix 5) The thickness of the nano-ceramic new material is 1 - 8 μm. The laser titanium cooking appliance according to Appendix 1, characterized by the above.

[0105] (Appendix 6) A superconducting magnetic layer with a thickness of 300 - 600 μm is provided on the outer surface of the pot body. The laser titanium cooking appliance according to Appendix 1, characterized by the above.

[0106] (Appendix 7) In terms of mass percentage, the superconducting magnetic layer contains 80 - 92% nickel - iron alloy, 0.03 - 2.5% toner, 2 - 6% graphene, 1 - 3.5% chromium powder, 4 - 6% molybdenum powder, and 0.5 - 3% copper powder, and the mass content of nickel in the nickel - iron alloy is 65 - 79%. The laser titanium cooking appliance according to appended note 5, characterized in that

[0107] (Appended note 8) The material of the pot body is any one of aluminum, iron, stainless steel, copper, titanium, and ceramic. The laser titanium cooking appliance according to appended note 1, characterized in that

[0108] (Appended note 9) A manufacturing method of the laser titanium cooking appliance according to any one of appended notes 1 - 8, comprising a step of sand - blasting a clean pot body and a step of manufacturing a non - stick coating layer on the inner surface of the pot body, The manufacturing method of the non - stick coating layer includes heating the pot body to 120 - 180°C, performing ultra - high - speed laser welding hardening on the powder material of the nano - metal ceramic layer to obtain a nano - metal ceramic layer with a preset thickness, and then performing high - temperature welding hardening at 293 - 1693°C to obtain a non - stick coating layer. Or, the manufacturing method of the non - stick coating layer includes heating the pot body to 120 - 180°C, performing ultra - high - speed laser welding hardening on the powder material of the nano - metal ceramic layer to obtain a nano - metal ceramic layer, curing the paint of the nano - ceramic new material on the nano - metal ceramic layer to obtain a nano - ceramic new material, and then performing high - temperature welding hardening at 293 - 1693°C to obtain a non - stick coating layer with a preset thickness. Or, the manufacturing method of the non - stick coating layer includes heating the pot body to 120 - 180°C, performing ultra - high - speed laser welding hardening on the powder material of the nano - metal ceramic layer to obtain a nano - metal ceramic layer (S2), curing the paint of the nano - ceramic new material on the nano - metal ceramic layer to obtain a nano - ceramic new material (S3), repeating steps S2 - S3 to a preset thickness, and performing high - temperature welding hardening at 293 - 1693°C to fabricate a non - stick coating layer. A manufacturing method of a laser titan cooking appliance, characterized by the following.

[0109] (Appendix 10) Further including performing ultra-high speed laser welding hardening of a superconducting magnetic layer on the outer surface of the pot body, The manufacturing method according to Appendix 9, characterized by the above.

Explanation of symbols

[0110] 10: Pot body, 20: Non-stick coating layer, 30: Superconducting magnetic layer, 21: Nano metal ceramic layer, 22: Nano ceramic new material, 41: Shell layer, 42: Resin layer, 43: Core layer.

Claims

1. A titanium cooking utensil, comprising: a pot body and a non-stick coating layer provided on the inner surface of the pot body, wherein the non-stick coating layer is a nano metal ceramic layer having hardness, or the non-stick coating layer is obtained by laminating the nano metal ceramic layer and a nano ceramic new material having hardness, or the non-stick coating layer is composed of the nano metal ceramic layer and the nano ceramic new material laminated alternately a plurality of times, the nano metal ceramic layer contains, by mass%, 15 to 45% of titanium metal-coated particles and 55 to 85% of a nano composite ceramic powder new material, the nano ceramic new material contains, by mass%, 20 to 30% of polymethylsiloxane, 0.5 to 20% of hydroxy silicone oil, 1 to 5% of low melting point glass powder, 6 to 10% of silica sol, 5 to 10% of silicon nitride, 5 to 10% of nano titania, 8 to 12% of nano alumina, 6 to 8% of nano titanium, 3 to 6% of a wetting dispersant, 2 to 4% of a thickener, and 10 to 15% of water, the nano composite ceramic powder new material is selected from at least one of titanium nitride, titanium carbide, silicon carbide, titanium carbonitride, titanium boride, aluminum oxide, lanthanum oxide, yttrium oxide, zirconium oxide, magnesium oxide, calcium hydroxyphosphate, and iron powder, the titanium metal-coated particles have a core-shell structure with three layers, the shell layer is titanium metal, the core layer is silicone oil, and between the shell layer and the core layer is a resin layer, the resin layer is a mixture of polymethylsiloxane and iron powder, by mass%, the titanium metal accounts for 10 to 40%, polymethylsiloxane accounts for 55 to 70%, iron powder accounts for 0.5 to 2%, and the balance is silicone oil, the particle size of the nano composite ceramic powder new material is 0.01 to 6 μm, and the particle size of the titanium metal-coated particles is 2 to 6 μm, A titanium cooking utensil, characterized by the above.

2. The thickness of the non-stick coating layer is 30 to 1000 μm, The titanium cooking utensil according to claim 1, characterized by the above.

3. The thickness of the nano metal ceramic layer is 5 to 20 μm, The titanium cooking utensil according to claim 1, characterized by the above.

4. The thickness of the nano ceramic new material is 1 to 8 μm, The titanium cooking utensil according to claim 1, characterized by the above.

5. A superconducting magnetic layer with a thickness of 300 to 600 μm is provided on the outer surface of the pot body. The titanium cooking utensil according to claim 1, characterized in that...

6. In terms of mass percentage, the superconducting magnetic layer contains 80 - 92% nickel-iron alloy, 0.03 - 2.5% toner, 2 - 6% graphene, 1 - 3.5% chromium powder, 4 - 6% molybdenum powder, and 0.5 - 3% copper powder, and the mass content of nickel in the nickel-iron alloy is 65 - 79%. The titanium cooking utensil according to claim 5, characterized in that...

7. The material of the pot body is any one of aluminum, iron, stainless steel, copper, titanium, and ceramic. The titanium cooking utensil according to claim 1, characterized in that...

8. A manufacturing method of the titanium cooking utensil according to any one of claims 1 to 7, comprising: a step of sandblasting a clean pot body, and a step of manufacturing the non-stick coating layer on the inner surface of the pot body. The manufacturing method of the non-stick coating layer includes heating the pot body to 120 - 180°C, performing ultra-high speed laser welding and hardening on the powder material of the nano-metal ceramic layer to obtain the nano-metal ceramic layer with a preset thickness, and then performing high-temperature welding and hardening at 293 - 1693°C to obtain the non-stick coating layer. Or, the manufacturing method of the non-stick coating layer includes heating the pot body to 120 - 180°C, performing ultra-high speed laser welding and hardening on the powder material of the nano-metal ceramic layer to obtain the nano-metal ceramic layer, curing the paint of the nano-ceramic new material on the nano-metal ceramic layer to obtain the nano-ceramic new material, and then performing high-temperature welding and hardening at 293 - 1693°C to obtain the non-stick coating layer with a preset thickness. Or, the manufacturing method of the non-stick coating layer includes heating the pot body to 120 - 180°C, performing ultra-high speed laser welding and hardening on the powder material of the nano-metal ceramic layer to obtain the nano-metal ceramic layer (S2), curing the paint of the nano-ceramic new material on the nano-metal ceramic layer to obtain the nano-ceramic new material (S3), repeating steps S2 - S3 to a preset thickness, and performing high-temperature welding and hardening at 293 - 1693°C to fabricate the non-stick coating layer. A manufacturing method of a titanium cooking utensil, characterized in that...

9. Further including performing ultra-high speed laser welding and hardening of a superconducting magnetic layer on the outer surface of the pot body. The manufacturing method according to claim 8, characterized in that...

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