A processing method of a non-coated non-stick pot body and a non-stick pot

Abstract

The application provides a processing method of a non-coated non-stick pot body and the non-stick pot, and comprises the following steps: high-temperature melting spraying treatment is performed to form a melting spraying layer on the surface of a pot blank; sand blasting treatment is performed on the inner surface of the pot blank to form a corundum layer on the melting spraying layer; and oil spraying treatment is performed on the inner surface of the pot blank to form an oil film layer in the corundum layer. The application forms a high-hardness melting spraying layer on the surface of the pot blank, and sprays a high-wear-resistance corundum layer outside the melting spraying layer. The corundum layer is formed with pores, and after the oil spraying treatment, edible oil enters the corundum layer to form an oil film layer with good non-stick property. The pot body can realize the non-stick function without coating, the processing cost is significantly reduced, the pot body is healthy and safe, has good wear resistance and long non-stick life, has good compatibility, and does not have the situation of layering cracking caused by dry burning. In addition, the pot body does not have the situation of coating peeling off when the pot body is empty or dry, so that the harm to the human body or the situation of food sticking to the pot is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cookware, in particular to a processing method of a non-coated non-stick pot body and a non-stick pot. BACKGROUND

[0002] Most of the non-stick pots on the market are made by high-temperature spraying stainless steel wire onto aluminum alloy base material to improve the wear resistance of aluminum alloy cookware, and at the same time, polytetrafluoroethylene resin non-stick coating is sprayed to improve the non-stick performance. The compatibility of this multi-layer and multi-class structure with different materials is poor, and after dry burning, it is easy to crack and cause delamination defects. In addition, polytetrafluoroethylene will volatilize toxic gas after multiple empty burning or dry burning, and the residual and fallen polytetrafluoroethylene coating will cause harm to the human body after being eaten by the human body. SUMMARY

[0003] To solve at least one of the above problems, the present application first provides a processing method of a non-coated non-stick pot body, comprising the following steps: high-temperature spraying treatment is performed to form a spraying layer on the surface of the pot blank; sand blasting treatment is performed on the inner surface of the pot blank to form a diamond sand layer on the spraying layer; and oil spraying treatment is performed on the inner surface of the pot blank to form an oil film layer in the diamond sand layer.

[0004] Optionally, the step of high-temperature spraying to form a spraying layer on the surface of the pot blank is to spray titanium wire at high temperature to the surface of the pot blank to form a wave honeycomb-shaped spraying layer.

[0005] Optionally, the material of the pot blank is aluminum alloy, stainless steel, carbon steel, or pure titanium.

[0006] Optionally, before the step of high-temperature spraying treatment to form a spraying layer on the surface of the pot blank, the method further comprises a workpiece rough machining treatment: performing a rough workpiece integrated die casting forming treatment; performing a mouth processing; performing a rough finishing treatment; performing an inner body finishing treatment; performing an outer body finishing treatment; performing a body baking treatment; and performing an oil removal cleaning treatment to form the pot blank.

[0007] Optionally, after the step of oil spraying treatment on the inner surface of the pot blank to form an oil film layer in the diamond sand layer, the method further comprises a workpiece surface finishing treatment: performing a cleaning treatment; performing a sand blasting treatment on the outer surface of the pot blank to form an outer diamond sand layer on the spraying layer of the outer surface of the pot blank; performing a preheating treatment; performing an outer body primer spraying treatment; and performing an outer body topcoat spraying treatment.

[0008] Optionally, the step of oil spraying the inner surface of the pot blank to form an oil film layer in the layer of emery includes: first oil spraying the inner surface of the pot blank to form a first oil film layer on a side of the layer of emery in contact with the layer of melting shot; second oil spraying to form a second oil film layer in the layer of emery in contact with the first oil film layer; and third oil spraying to form a third oil film layer in the layer of emery in contact with the second oil film layer.

[0009] Optionally, the step of first oil spraying the inner surface of the pot blank to form a first oil film layer on a side of the layer of emery in contact with the layer of melting shot includes: first oil spraying, wherein the oil sprayed in the first oil spraying penetrates into pores of the layer of emery; first physical sealing, wherein the layer of emery is sanded to make the oil sprayed in the first oil spraying adhere to the side of the layer of emery in contact with the layer of melting shot; and first semi-product baking, wherein the first oil film layer is formed by solidification; and / or, the step of second oil spraying to form a second oil film layer in the layer of emery in contact with the first oil film layer includes: second oil spraying, wherein the oil sprayed in the second oil spraying penetrates into pores of the layer of emery; first baking solidification, wherein the oil sprayed in the second oil spraying and penetrated into the pores of the layer of emery is solidified; second physical sealing, wherein the layer of emery is sanded to make the oil sprayed in the second oil spraying adhere to a position of the layer of emery in contact with the first oil film layer; and second semi-product baking, wherein the second oil film layer is formed by solidification; and / or, the step of third oil spraying to form a third oil film layer in the layer of emery in contact with the second oil film layer includes: third oil spraying, wherein the oil sprayed in the third oil spraying penetrates into pores of the layer of emery; second baking solidification, wherein the oil sprayed in the third oil spraying and penetrated into the pores of the layer of emery is solidified; third physical sealing, wherein the layer of emery is sanded to make the oil sprayed in the third oil spraying adhere to a position of the layer of emery in contact with the second oil film layer; and third semi-product baking, wherein the third oil film layer is formed by solidification.

[0010] Optionally, the grit number of the sandpaper used for the first sanding, the grit number of the sandpaper used for the second sanding, and the grit number of the sandpaper used for the third sanding increase in order.

[0011] Optionally, the oil sprayed in the first oil spraying, the oil sprayed in the second oil spraying, and the oil sprayed in the third oil spraying are all linseed oil.

[0012] Compared with the prior art, the processing method of the non-coated non-stick pot body in the application sprays a high-hardness fusion layer on the surface of the pot blank, and sprays a high-wear-resistance diamond sand layer outside the fusion layer, the diamond sand layer has pores, and after oil spraying treatment, edible oil enters the diamond sand layer to form an oil film layer with good non-stickness. Through this process method, the pot body can realize non-stickness without chemical coating, the processing cost is significantly reduced, it is more healthy and safe, has good wear resistance, long non-stick life, and can be used for long-term iron shovel cooking or steel ball cleaning; has good compatibility, does not cause delamination and cracking due to dry burning, and does not cause coating peeling when the pot body is empty or dry, thereby avoiding harm to the human body or food sticking to the pot.

[0013] In addition, the application provides a non-stick pot comprising a non-stick pot body prepared by the processing method of the non-coated non-stick pot body.

[0014] Compared with the prior art, the non-stick pot of the application has the same advantages as the processing method of the non-coated non-stick pot body, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 Flowchart of the processing method of the non-coated non-stick pot body of the embodiment of the application Figure 1 ;

[0016] Figure 2 Flowchart of the processing method of the non-coated non-stick pot body of the embodiment of the application Figure 2 ;

[0017] Figure 3 Cross-sectional effect explosion diagram of the non-stick pot body of the embodiment of the application.

[0018] BRIEF DESCRIPTION OF DRAWINGS

[0019] 1, pot blank; 2, fusion layer; 3, diamond sand layer; 4, first oil film layer; 5, second oil film layer; 6, third oil film layer. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned objects, features and advantages of the application more obvious and easy to understand, the specific embodiments of the application will be described in detail below with reference to the drawings.

[0021] In the description of the application, it should be understood that the terms "upper", "lower", etc. indicate the orientation or positional relationship based on the orientation or positional relationship when the product is normally used.

[0022] The terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as implying or suggesting relative importance or an indicated number of technical features. Thus, features defined with "first", "second", etc. can explicitly or implicitly include at least one of the features.

[0023] The embodiment of the present application provides a processing method of a non-coated non-stick pot body, which combines Figure 1 、 Figure 3 as shown, comprising the following steps:

[0024] S2, high-temperature spraying treatment is performed to form a spraying layer 2 on the surface of the pot blank 1;

[0025] The spraying layer is only formed on the inner surface of the pot blank, or can be formed on the inner surface and the outer surface of the pot blank, and is used for enhancing the surface hardness of the base material and improving the surface wear resistance; the material of the pot blank is aluminum alloy, stainless steel, carbon steel or pure titanium, the stainless steel is preferably 430 material or 410 material, and the carbon steel is preferably DC01-DC08 material; in the embodiment, the material of the pot blank is preferably aluminum alloy material, which is light in weight and low in cost.

[0026] S3, sand blasting treatment is performed on the inner surface of the pot blank 1 to form a corundum layer 3 on the spraying layer 2;

[0027] The corundum is embedded in the surface of the pot blank through high-speed sand blasting and is very firm; the two-layer structure of the spraying layer and the corundum layer ensures that the food material does not contact the pot blank made of aluminum alloy and the like during cooking, and ensures the safety of the food; the difference between the high and low values of the surface of the spraying layer is about 1 mm, and the difference between the high and low values of the surface of the corundum layer formed after the sand blasting treatment can be controlled to be 0.3-0.5 mm, so that the edible oil is not easy to be retained in the concave hole during frying; the corundum layer not only balances the high and low surfaces of the spraying layer, but also has pores, thereby increasing the absorption and adhesion of the subsequent oil film layer; in addition, the corundum of the corundum layer can be replaced by other materials with good grinding performance and high hardness, such as aluminum oxide abrasive and silicon carbide abrasive.

[0028] S4, oil spraying treatment is performed on the inner surface of the pot blank 1 to form an oil film layer in the corundum layer 3;

[0029] The oil film layer is embedded in the corundum layer and improves the service life of the oil film layer; the oil film layer can be one layer, two layers, three layers or more; the oil sprayed in the oil spraying treatment is edible oil which is safe for eating.

[0030] The processing method of the non-coated non-stick pot body in this embodiment is to spray a high-hardness spraying layer on the surface of the pot blank, and to spray a high-wear-resistance diamond layer outside the spraying layer. The diamond layer has pores, and after oil spraying treatment, edible oil enters the diamond layer to form an oil film layer with good non-stick property. Through this process, the pot body can realize non-stick function without chemical coating, the processing cost is significantly reduced, it is more healthy and safe, has good wear resistance, long non-stick life, and can be used for long-term cooking with iron shovel or cleaning with steel wire ball; it has good compatibility and does not cause delamination and cracking due to dry burning; in addition, there is no coating peeling when the pot body is empty or dry, thereby avoiding harm to the human body or food sticking to the pot.

[0031] Optionally, as shown in Figure 1 、 Figure 3 , the step S2 of forming a spraying layer on the surface of the pot blank by high-temperature spraying is to form a wave honeycomb spraying layer by high-temperature spraying of titanium wire on the surface of the pot blank.

[0032] Wherein, the high-temperature spraying of titanium wire on the aluminum alloy substrate can improve the wear resistance of the aluminum alloy cookware; the high-temperature spraying removes impurities on the surface of the aluminum alloy substrate, and a zero-addition chemical component is added to form a honeycomb uneven wear-resistant spraying layer on the surface of the aluminum substrate; edible oil is wiped on the honeycomb uneven wear-resistant spraying layer, and an oil film layer is formed on the surface of the pot blank by oil spraying process to realize the non-stick property of the non-coated pot body.

[0033] Optionally, as shown in Figure 1 、 Figure 2 、 Figure 3 , the step S4 of performing oil spraying treatment on the inner surface of the pot blank to form an oil film layer in the diamond layer includes:

[0034] S41, performing initial oil spraying treatment on the inner surface of the pot blank to form a first oil film layer 4 on the side of the diamond layer in contact with the spraying layer; the step S41 specifically includes:

[0035] S411, performing first oil spraying, and the oil sprayed in the first oil spraying penetrates into the pores of the diamond layer to improve the physical non-stick property of the product;

[0036] S412, performing first physical hole sealing, and performing first sanding treatment on the diamond layer to make the oil sprayed in the first oil spraying adhere to the side of the diamond layer in contact with the spraying layer; the depth of this grinding is deeper, so that the oil can penetrate to the position in contact with the spraying layer, and the physical hole sealing can prevent the first oil film layer from contacting air to improve the non-stick life of the oil film layer;

[0037] S413, first semi-finished product baking is performed to solidify the first oil film layer to enhance the adhesion of the first oil film layer;

[0038] The drying operation is not performed before the physical sealing in the initial oil spraying process, so as to strip the impurities and oxidation layer on the surface of the pot shell base material through physical sanding;

[0039] S42, second oil spraying is performed to form a second oil film layer 5 in contact with the first oil film layer in the emery layer; step S42 specifically comprises:

[0040] S421, second oil spraying is performed, and the oil sprayed by the second oil spraying penetrates into the pores of the emery layer to further improve the physical non-stick performance of the product;

[0041] S422, first baking and solidification are performed to solidify the oil sprayed by the second oil spraying and penetrated into the pores of the emery layer, and the second oil film layer is preliminarily solidified to enhance the adhesion of the second oil film layer;

[0042] S423, second physical sealing is performed, and the emery layer is subjected to second sanding treatment, so that the oil sprayed by the second oil spraying is attached to the position in the emery layer in contact with the first oil film layer; the depth of this time of grinding is shallow, so that the oil can penetrate into the position in contact with the first oil film layer, the physical sealing can prevent the second oil film layer from contacting air, and the non-stick life of the oil film layer is improved;

[0043] S424, second semi-finished product baking is performed to solidify the second oil film layer to further enhance the adhesion of the second oil film layer;

[0044] S43, third oil spraying is performed to form a third oil film layer 6 in contact with the second oil film layer in the emery layer; step S43 specifically comprises:

[0045] S431, third oil spraying is performed, and the oil sprayed by the third oil spraying penetrates into the pores of the emery layer to further improve the physical non-stick performance of the product;

[0046] S432, second baking and solidification are performed to solidify the oil sprayed by the third oil spraying and penetrated into the pores of the emery layer, and the third oil film layer is preliminarily solidified to enhance the adhesion of the third oil film layer;

[0047] S433, performing third physical sealing, performing third sanding on the emery layer, so that the oil sprayed by the third spraying is attached to the position of the emery layer in contact with the second oil film layer; the depth of this grinding is the shallowest, so that the oil can penetrate to the position in contact with the second oil film layer, and the physical sealing can prevent the third oil film layer from contacting the air, thereby improving the non-stick life of the oil film layer; the outer surface of the emery layer is slightly higher than the outer surface of the third oil film layer, so as to ensure that the third oil film layer does not contact the air;

[0048] S434, performing third semi-finished product baking, and solidifying to form the third oil film layer, so as to further enhance the adhesion of the third oil film layer.

[0049] In this embodiment, the oil film layer is formed by repeatedly spraying oil, sanding and then providing high-temperature baking; the total thickness of the oil film layer is preferably 15-20 μm, and the thickness of each layer of the oil film layer is preferably 5 μm in this embodiment, so that the total thickness of the three layers is 15 μm; the oil film layer in this range can play a good non-stick role and is not easy to peel off; if the thickness is too thick, it is easy to peel off, and if the thickness is too thin, it cannot guarantee the non-stick effect; in this embodiment, three spraying processes are selected, in addition to this, only one spraying process or two spraying processes can also be performed, and more spraying processes can also be performed.

[0050] In this embodiment, the pot base is first formed with a wear-resistant fusion layer by high-temperature fusion, and then an oil film layer is formed on the pot base by high-pressure, high-temperature and high-speed sanding process with edible oil; the oil film layer with a certain thickness is formed on the inner surface of the pot base by repeatedly processing, and the oil film layer is not a coating, so as to realize the non-stick performance of the non-coated pot body; in the state of empty burning or dry burning of the cooker, the product surface coating will not fall off, thereby avoiding the harm to the human body or the product paste pot caused by the falling off of the non-stick coating of the product.

[0051] Optionally, the mesh number of the sandpaper for the first sanding, the mesh number of the sandpaper for the second sanding and the mesh number of the sandpaper for the third sanding increase in turn; the sandpaper for the first sanding is the coarsest, so as to realize the deepest grinding of the emery layer, so that the oil sprayed by the first spraying can penetrate to the position in contact with the fusion layer; the sandpaper for the second sanding is the second coarsest, and the sandpaper for the third sanding is the finest, so as to realize the layer-by-layer accumulation of the oil film layer, and ensure the non-stick performance of the non-coated pot body.

[0052] Optionally, the oil sprayed by the first spraying, the oil sprayed by the second spraying and the oil sprayed by the third spraying are all linseed oil.

[0053] The linseed oil added with 0 fluorine nano-crystalline ceramic coating can be quickly cured at low temperature, i.e. at 120-150 ℃, to play a role of curing and sealing the hole, and can greatly reduce the energy consumption cost during production and manufacturing. The baking temperature of the traditional non-stick coating is 430 ℃, the energy consumption is large, and the baking temperature of the ceramic coating is 250-260 ℃, the baking temperature of the Teflon coating is 380-420 ℃, and the baking temperature of the titanium spraying is 900-1000 ℃. In this embodiment, the linseed oil sprayed on the product will not enter the food during normal cooking after the product is formed, because of the physical sealing process, but even if the linseed oil enters the food, it is safe because the ignition point of the linseed oil is low, and the ignition point is only 107 ℃.

[0054] Optionally, in combination with Figure 1 As shown in the figure, before the step S2 of performing high-temperature melting spraying treatment to form a melting layer on the surface of the pot blank, the step S1 of rough machining treatment of the workpiece is further included:

[0055] S11, performing rough machining treatment of the workpiece to realize the forming state of the thick bottom and thin wall of the pot body;

[0056] S12, performing mouth turning treatment for turning the product burrs to facilitate better development of the subsequent process;

[0057] S13, performing rough finishing treatment for grinding the product edge to facilitate better development of the subsequent process;

[0058] S14, performing inner body finishing treatment for grinding the product inner body to increase the film thickness and physical non-stick performance, and facilitate better development of the subsequent process;

[0059] S15, performing outer body finishing treatment for grinding the product outer body to increase the film thickness and physical non-stick performance, and facilitate better development of the subsequent process;

[0060] S16, performing blank body baking treatment for inspecting the peeling and blistering problems of the product blank body to facilitate control of the yield rate;

[0061] S17, performing oil removal and cleaning treatment to form the pot blank for removing the oil on the surface of the product to facilitate better development of the subsequent process and improve the yield rate.

[0062] Optionally, in combination with Figure 1 As shown in the figure, after the step S4 of performing oil spraying treatment on the inner surface of the pot blank to form an oil film layer in the diamond sand layer, the step S5 of surface finishing treatment of the workpiece is further included:

[0063] S51, performing cleaning treatment for removing the oil on the surface of the product to facilitate better development of the subsequent process and improve the yield rate;

[0064] S52, sandblasting the outer surface of the pot blank, forming an outer corundum layer on the melt layer of the outer surface of the pot blank, for enhancing the roughness of the outer surface of the workpiece, improving wear resistance, and filling some irregular surfaces of the melt layer;

[0065] S53, preheating treatment for quick surface drying of the primer surface to enhance the quick adhesion of the primer to the substrate blank;

[0066] S54, performing a primer spraying process on the outer body of the blank to enhance the uniformity of the surface color and luster to improve the appearance of the product;

[0067] S55, performing a topcoat spraying process on the outer body of the blank to further enhance the uniformity of the surface color and luster to improve the appearance of the product.

[0068] In combination Figures 1 to 3 As shown in the detailed processing flow of the processing method of the non-coated non-stick pot body in this embodiment is as follows:

[0069] S11, performing an integrated die casting forming process on the blank workpiece; using a die casting machine to form the first blank workpiece, the processing time is 100-160S, the processing temperature is 180-250℃, and the processing pressure is 3500Psi-4500Psi; the blank workpiece after forming should not be deformed, cracked, or have a fault; the integrated forming process is used to achieve the forming state of the thick bottom and thin wall of the pot body;

[0070] S12, performing a mouth turning process; using a mouth turning machine to turn and trim the mouth of the first blank workpiece to form a second blank workpiece, the processing time is 30-60S, the processing temperature is 100-120℃, and the workpiece rotation speed is 1800-2000 revolutions per minute; the turned mouth should not be deformed and should be round; the turning process is used to turn the product burrs to facilitate better development in the subsequent process;

[0071] S13, performing a rough finishing process; using a mouth grinding machine to grind and finish the mouth of the second blank workpiece to form a third blank workpiece, the processing time is 30-50S, the processing temperature is 120-160℃, and the workpiece rotation speed is 1800-2000 revolutions per minute; the ground mouth should not have pores, sand holes, sand marks, or pressure marks; the grinding process is used to grind the product mouth to facilitate better development in the subsequent process;

[0072] S14, performing an inner body finishing process; using an inner body grinding machine to grind and finish the inner body of the third blank workpiece to form a fourth blank workpiece, the processing time is 30-50S, the processing temperature is 120-160℃, and the workpiece rotation speed is 1800-2000 revolutions per minute; the ground inner body should not have pores, sand holes, sand marks, or pressure marks; the grinding process is used to grind the product inner body to increase the film thickness and physical non-stick properties, and facilitate better development in the subsequent process;

[0073] S15, performing an embryo body finishing treatment; using an embryo body grinding machine to grind the embryo body of the fourth blank to form a fifth blank, the processing time is 30-50S, the processing temperature is 120-160℃, and the workpiece rotation speed is 1800-2000 revolutions per minute; the embryo body grinding is required to be free of pores, sand holes, sand marks, and pressure marks; the product edge embryo is ground to increase the film thickness and physical non-stick properties, and facilitate better development of the subsequent process;

[0074] S16, performing an embryo body baking treatment; using a baking high-temperature tunnel furnace to bake the pot embryo of the fifth blank to form a sixth blank, improve the compactness of the base material, the processing time is 15-20min, the processing temperature is 420-450℃, and the workpiece rotation speed is 60-80 revolutions per minute; the pot embryo baking is required to be free of blistering, cracking, and faults; the product embryo peeling and blistering problems are checked to facilitate control of the finished product rate;

[0075] S17, performing an oil removal cleaning treatment to form the pot embryo; using a spray type tunnel cleaning and baking machine to clean the embryo body of the sixth blank to form the pot embryo, the processing time is 15-20min, the processing temperature is 85-100℃, and the workpiece rotation speed is 80-100 revolutions per minute; the pot embryo is required to be free of grease and water stains; the product surface grease is removed to facilitate better development of the subsequent process and improve the finished product rate;

[0076] S2, performing a high-temperature melting shot treatment to form a melting layer on the surface of the pot embryo; using a plasma melting machine to melt the pot embryo to form a first semi-finished product, the processing time is 100-160S, the processing temperature is 900-1000℃, and the workpiece rotation speed is 400-600 revolutions per minute; the pot embryo is required to be wave honeycomb-shaped, free of oxidation impurities, and have high compactness and wear resistance of the base material surface; the pot embryo base material surface hardness is increased to improve the wear resistance of the base material surface; the high-temperature melting titanium wire on the aluminum alloy base material improves the wear resistance of the aluminum alloy cookware;

[0077] S3, performing sand blasting treatment on the inner surface of the pot embryo to form a diamond layer on the melting layer; using a high-speed sand blasting machine to sand blast the inner side of the first semi-finished product to form a second semi-finished product, the processing time is 100-120S, the processing temperature is 100-120℃, and the workpiece rotation speed is 60-80 revolutions per minute; the pot embryo is required to be wave honeycomb-shaped, free of impurities, and have high compactness of the diamond layer on the base material surface and strengthened base material surface hardness; the porosity layer of the base material surface is increased to improve the oil film permeability of the subsequent process;

[0078] S411, first oil injection; the inner side of the second semi-product is injected with a high-speed oil injector to form a third semi-product, the oil is preferably linseed oil, the processing time is 10-12S, the processing temperature is 80-100℃, and the workpiece speed is 60-80r / min; the inner surface of the embryo is required to form a permeable layer of wave honeycomb concave-convex holes; the physical oil film layer on the surface of the substrate is increased to improve the physical non-stickiness of the product;

[0079] S412, first physical hole sealing operation; the inner and outer sides of the third semi-product are sanded with a high-speed sander to form a fourth semi-product, the processing time is 20-30S, the processing temperature is 100-120℃, and the workpiece speed is 1800-2000r / min; the inner surface of the embryo is required to form a grinding layer with a certain depth in the wave honeycomb concave-convex holes of the substrate; the grinding layer refers to a layer of small protrusions and depressions formed on the surface of the substrate; used to protect the oil film layer from contact with air and improve the oil film layer non-stick life;

[0080] S413, first semi-product baking operation, solidification to form a first oil film layer; the inner and outer sides of the fourth semi-product are baked with a baking low-temperature tunnel furnace to form a fifth semi-product, the processing time is 20-30S, the processing temperature is 120-150℃, and the workpiece speed is 60-80r / min; the inner surface of the embryo is required to form a 5μm oil film layer in the wave honeycomb concave-convex holes of the substrate; solidification to form a first oil film layer to enhance the adhesion of the oil film layer;

[0081] S421, second oil injection operation; the inner side of the fifth semi-product is injected with a high-speed oil injector to form a sixth semi-product, the oil is preferably linseed oil, the processing time is 10-12S, the processing temperature is 80-100℃, and the workpiece speed is 60-80r / min; the inner surface of the embryo is required to form a permeable layer of wave honeycomb concave-convex holes; used to increase the physical oil film layer on the surface of the substrate to improve the physical non-stickiness of the product;

[0082] S422, first baking and solidification operation; the sixth semi-product is baked and heated with a baking and solidification tunnel furnace to form a seventh semi-product, the processing time is 20-30S, the processing temperature is 120-150℃, and the workpiece speed is 60-80r / min; the inner surface of the embryo is required to form a 10μm oil film layer in the wave honeycomb concave-convex holes of the substrate; used to solidify the second oil film layer to enhance the adhesion of the second oil film layer;

[0083] S423, performing second physical sealing operation; sanding the inner and outer sides of the seventh semi-finished product by using high-speed sander to form the eighth semi-finished product, processing time is 20-30S, processing temperature is 100-120℃, workpiece rotation speed is 1800-2000r / min; the inner surface of the embryo body is required to form a certain depth of polishing layer in the wave honeycomb concave-convex hole of the base material; used for protecting the oil film layer from contacting with air to improve the non-stick life of the oil film layer;

[0084] S424, performing second semi-finished product baking operation, curing to form a second oil film layer; baking and heating the inner and outer sides of the eighth semi-finished product by using baking low-temperature tunnel furnace to form the ninth semi-finished product, processing time is 20-30S, processing temperature is 120-150℃, workpiece rotation speed is 60-80r / min; the inner surface of the embryo body is required to form a 10μm oil film layer in the wave honeycomb concave-convex hole of the base material; used for further curing the second oil film layer and enhancing the adhesion of the second oil film layer;

[0085] S431, performing third oil spraying operation; spraying oil on the inner side of the ninth semi-finished product by using high-speed oil sprayer to form the tenth semi-finished product, the sprayed oil is preferably linseed oil, processing time is 10-12S, processing temperature is 80-100℃, workpiece rotation speed is 60-80r / min; the inner surface of the embryo body is required to form a permeable layer in the wave honeycomb concave-convex hole of the base material; used for increasing the physical oil film layer on the surface of the base material and improving the physical non-stick property of the product;

[0086] S432, performing second baking and curing operation; baking and heating the tenth semi-finished product by using baking and curing tunnel furnace to form the eleventh semi-finished product, processing time is 20-30S, processing temperature is 120-150℃, workpiece rotation speed is 60-80r / min; the inner surface of the embryo body is required to form a 15μm oil film layer in the wave honeycomb concave-convex hole of the base material; used for curing the third oil film layer and enhancing the adhesion of the third oil film layer;

[0087] S433, performing third physical sealing operation; sanding the inner and outer sides of the eleventh semi-finished product by using high-speed sander to form the twelfth semi-finished product, processing time is 20-30S, processing temperature is 100-120℃, workpiece rotation speed is 1800-2000r / min; the inner surface of the embryo body is required to form a certain depth of polishing layer in the wave honeycomb concave-convex hole of the base material; used for protecting the third oil film layer from contacting with air to improve the non-stick life of the third oil film layer;

[0088] S434, a third semi-finished product baking operation is performed to solidify a third oil film layer; the inner and outer sides of the twelfth semi-finished product are baked by using a baking low-temperature tunnel furnace to form a thirteenth semi-finished product, the processing time is 20-30S, the processing temperature is 120-150℃, and the workpiece rotating speed is 60-80r / min; a 15μm oil film layer is formed in the wave honeycomb concave-convex hole of the inner surface of the embryo; the third oil film layer is solidified to enhance the adhesion of the third oil film layer;

[0089] S51, cleaning treatment is performed; the thirteenth semi-finished product is cleaned by using a spraying type tunnel cleaning and baking machine to form a fourteenth semi-finished product, the processing time is 15-20min, the processing temperature is 85-100℃, and the workpiece rotating speed is 80-100r / min; the pot embryo is required to be free of dust and water stains; the product surface grease is removed to facilitate better development of the subsequent process and improve the yield of finished products;

[0090] S52, sand blasting treatment is performed on the outer surface of the pot embryo to form an outer diamond layer on the sand blasting layer of the outer surface of the pot embryo; the outer side of the fourteenth semi-finished product is sand blasted by using a high-speed sand blasting machine to form a fifteenth semi-finished product, the processing time is 100-120S, the processing temperature is 100-120℃, and the workpiece rotating speed is 60-80r / min; the wave honeycomb of the pot embryo is required to be free of impurities, and the diamond layer on the surface of the base material is required to be high in density and to strengthen the hardness of the surface of the base material; the outer surface roughness of the workpiece is enhanced to improve the wear resistance, and some irregular surfaces of the sand blasting layer are filled;

[0091] S53, preheating treatment is performed; the fifteenth semi-finished product is preheated by using a low-temperature tunnel furnace to form a sixteenth semi-finished product, the processing time is 5-10min, the processing temperature is 150-160℃, and the workpiece rotating speed is 80-100r / min; the surface of the pot embryo is required to be preheated to keep the workpiece at a temperature of 100-120℃; the surface of the primer is quickly dried to enhance the rapid adhesion of the primer to the base material embryo;

[0092] S54, embryo outer body primer spraying treatment is performed; the sixteenth semi-finished product is sprayed with primer by using a paint spraying machine to form a seventeenth semi-finished product, the processing time is 15-20min, the processing temperature is 150-180℃, and the workpiece rotating speed is 80-100r / min; the surface of the pot embryo is required to be preheated to solidify the primer of the workpiece, and the film thickness reaches 10-15μm; the surface color uniformity is enhanced to improve the appearance of the product;

[0093] S55, embryo outer body topcoat spraying treatment is performed; the seventeenth semi-finished product is sprayed with topcoat by using a paint spraying machine to form a pot body finished product, the processing time is 15-20min, the processing temperature is 150-180℃, and the workpiece rotating speed is 80-100r / min; the surface of the pot embryo is required to be preheated to solidify the primer of the workpiece, and the film thickness reaches 20-25μm; the surface color uniformity is further enhanced to improve the appearance of the product.

[0094] Another embodiment of the present application provides a non-stick pot including a non-stick pot body manufactured by the above-mentioned non-coating non-stick pot body processing method.

[0095] The non-stick pot in the present embodiment has a high-hardness fusion layer sprayed on the surface of the pot blank, and a high-wear-resistance diamond sand layer sprayed outside the fusion layer. The diamond sand layer has pores, and after oil spraying treatment, edible oil enters the diamond sand layer to form an oil film layer with good non-stick property. Through this process method, the pot body can achieve non-stick function without chemical coating, the processing cost is significantly reduced, it is more healthy and safe, has good wear resistance, long non-stick life, and can be used for long-term cooking with an iron shovel or cleaning with a steel ball; has good compatibility, does not cause delamination and cracking due to dry burning, and does not cause coating peeling when the pot body is empty or dry, thereby avoiding harm to the human body or food sticking to the pot.

[0096] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited to this. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the present application.

Claims

1. A processing method for an uncoated non-stick pan body, characterized in that, Includes the following steps: High-temperature melt spraying is performed to form a melt spraying layer on the surface of the pot blank. Specifically, titanium wire is melt sprayed onto the surface of the pot blank at high temperature to form a wavy honeycomb melt spraying layer. The inner surface of the pot blank is sandblasted to form a diamond grit layer on the blasting layer; The inner surface of the pot blank is sprayed with oil to form an oil film layer within the diamond grit layer, specifically including: First, the inner surface of the pot blank is initially sprayed with oil to form a first oil film layer on the side of the diamond grit layer that contacts the melt-sprayed layer. The steps include: performing a first oil spray, in which the oil sprayed in the first oil spray penetrates into the pores of the diamond grit layer; performing a first physical sealing, in which the diamond grit layer is first sanded to allow the oil sprayed in the first oil spray to adhere to the side of the diamond grit layer that contacts the melt-sprayed layer; and performing a first semi-finished product baking at a processing temperature of 120-150℃ to solidify and form the first oil film layer. A second oil spraying process is then performed to form a second oil film layer in contact with the first oil film layer within the diamond abrasive layer. This includes the following steps: performing a second oil spraying, where the sprayed oil penetrates into the pores of the diamond abrasive layer; performing a first baking and curing process at a temperature of 120-150℃ to cure the oil sprayed during the second oil spraying that has penetrated into the pores of the diamond abrasive layer; performing a second physical sealing process by sanding the diamond abrasive layer a second time, allowing the oil sprayed during the second oil spraying to adhere to the position within the diamond abrasive layer that contacts the first oil film layer; and performing a second semi-finished product baking process at a temperature of 120-150℃ to cure and form the second oil film layer. The process involves three further oil spraying treatments to form a third oil film layer within the diamond abrasive layer, which contacts the second oil film layer. This includes the following steps: a third oil spraying, where the oil penetrates into the pores of the diamond abrasive layer; a second baking and curing process at 120-150°C to cure the oil that has penetrated into the pores of the diamond abrasive layer; a third physical sealing process, where the diamond abrasive layer undergoes a third sanding treatment, allowing the oil sprayed in the third oil spraying to adhere to the position within the diamond abrasive layer that contacts the second oil film layer; and a third semi-finished product baking process at 120-150°C to cure and form the third oil film layer.

2. The processing method for the uncoated non-stick pan body according to claim 1, characterized in that, The pot blank is made of aluminum alloy, stainless iron, carbon steel or pure titanium.

3. The processing method for the uncoated non-stick pan body according to claim 1, characterized in that, Before the step of forming a sprayed layer on the surface of the pot blank through high-temperature spraying, a rough machining process for the workpiece is also included: Perform integral die casting of the blank workpiece; Perform vehicle outlet processing; Perform rough repairs; Perform fine-tuning of the endoepithecus; Perform extraembryonic body refinement; Baking of the embryo is performed; The pot blank is formed by degreasing and cleaning.

4. The processing method for the uncoated non-stick pan body according to claim 1, characterized in that, Following the step of spraying oil onto the inner surface of the pot blank to form an oil film layer within the diamond abrasive layer, a finishing process is further included on the workpiece surface: Perform cleaning treatment; The outer surface of the pot blank is sandblasted to form an outer diamond grit layer on the blasted layer on the outer surface of the pot blank. Preheating treatment is performed; Apply primer to the preform body; Apply topcoat to the preform.

5. The processing method for the uncoated non-stick pan body according to claim 1, characterized in that, The grit of the sandpaper used for the first sanding, the grit of the sandpaper used for the second sanding, and the grit of the sandpaper used for the third sanding increase sequentially.

6. The processing method for the uncoated non-stick pan body according to claim 1, characterized in that, The oil sprayed in the first, second, and third sprays is flaxseed oil.

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