Ceramic coating non-stick pan with etched lines
Through the etching non-stick pan designed with ceramic coating and interlaced grooves, the problem of sticking pan caused by uncoated textured raised surfaces and the problem of high-temperature decomposition of polytetrafluoroethylene coating is solved, achieving high-temperature stability and good thermal conductivity. , safe and environmentally friendly non-stick pans.
Patent Information
- Application Number
- CN202323563934.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-26
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2033-12-26
AI Technical Summary
The existing etched non-stick pans have no coating on the textured raised faces, and the polytetrafluoroethylene coating contains toxic substances at high temperatures, which has poor thermal conductivity, which affects health and user experience.
The ceramic coating design is adopted, including a double-coated structure of ceramic paint layer and transparent topcoat layer. The coating evenly covers the inner surface of the pot body, combines stainless steel or composite stainless steel materials to improve thermal conductivity, and enhance adhesion through staggered groove design. Avoid coating falling off.
It improves the non-stickness and thermal conductivity of the pot body, avoids the release of toxic substances, extends the service life, and increases aesthetics and easy cleaning, ensuring a healthy, safe and environmentally friendly cooking experience.
Smart Images
Figure CN222265053U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pot manufacturing, and more specifically, to a non-stick pot with a ceramic coating and etching patterns. Background Art
[0002] In recent years, a non-stick pan with a concave-convex pattern on the inner surface has appeared on the market. The manufacturing process of this type of pan is as follows: first, a preset pattern of concave-convex patterns is formed on the surface of the pan by chemical etching, and a non-stick coating is sprayed and solidified. Then, the non-stick coating on the raised parts of the pattern is completely removed by grinding to expose the metal surface, while retaining the non-stick coating on the recessed surface. When cooking, the spatula only touches the raised metal surface and basically does not touch the non-stick coating on the recessed surface. In this way, even if an iron spatula is used for cooking, the non-stick coating will not be damaged. Therefore, it is loved by consumers who are accustomed to using an iron spatula for cooking. However, since the raised metal surface of this pan is not coated with a non-stick coating, local sticking to the pan may occur during cooking, and the user experience is not ideal.
[0003] This type of non-stick pan usually uses a polytetrafluoroethylene non-stick coating, which has the following problems: (1) Polytetrafluoroethylene is a PFAS substance. When the temperature is higher than 250°C, the coating will decompose and release toxic substances. Therefore, when the pan is burnt, the temperature of the pan body will generally be higher than the decomposition temperature of the coating, which seriously endangers the health of the user; (2) The coating on the surface of the pot is divided into very small parts by uneven textures. Once the spatula touches the coating, it is easy to cause the coating to fall off. At the very least, the pan body will lose its non-stick properties. At worst, the detached coating will mix into the food and enter the human body. Long-term accumulation will endanger human health.
[0004] The base material of this type of cookware is generally made of stainless steel, composite stainless steel and other materials. Since the thermal conductivity of stainless steel is 15.2W / (mK), while the thermal conductivity of ordinary aluminum alloy non-stick pan is 238W / (mK), this type of cookware has poor thermal conductivity. The part of the bottom of the pot that contacts the flame is prone to heat accumulation and cause the pot to stick.
[0005] In order to avoid the above-mentioned defects of the non-stick pan with concave-convex patterns, the utility model provides a non-stick pan with a ceramic coating and etching patterns. Utility Model Content
[0006] The purpose of the utility model is to overcome the above-mentioned deficiencies in the prior art and provide a non-stick pan with a ceramic coating having etched lines.
[0007] In order to solve the above technical problems, the purpose of the utility model is achieved as follows: the utility model involves a ceramic coated non-stick pan with etched patterns, including a pan body, the pan body having a substrate layer, the inner surface of the substrate layer is provided with a first groove, the first groove is filled with a first ceramic coating color paint layer, the groove wall of the first groove is coated with a first bonding layer that tightly connects the groove wall and the first ceramic coating color paint layer, the inner surface of the substrate layer is provided with a ceramic coating topcoat layer, the inner surface of the substrate layer is coated with a second bonding layer that tightly connects it to the ceramic coating topcoat layer, and the second bonding layer is also connected to the first ceramic coating color paint layer.
[0008] The utility model is further configured as follows: a second groove is opened on the outer surface of the substrate layer, the second groove is filled with a second ceramic coating color paint layer, and a third bonding layer is coated on the groove wall of the second groove to tightly connect the groove wall and the second ceramic coating color paint layer.
[0009] The utility model is further configured as follows: the first grooves and the second grooves are arranged in a staggered manner.
[0010] The utility model is further configured as follows: the inner surface area of the substrate layer is smaller than the bottom area of the first groove.
[0011] The utility model is further configured as follows: the substrate layer is made of stainless steel material or a composite stainless steel material in which the middle layer is made of aluminum alloy material and the inner and outer layers are both made of stainless steel material.
[0012] The utility model is further configured as follows: a first rough surface layer formed on the wall of the first groove is provided between the first bonding layer and the first groove; a second rough surface layer formed on the wall of the second groove is provided between the third bonding layer and the second groove.
[0013] The utility model is further configured as follows: the first ceramic coating color paint layer fills up the first groove; the second ceramic coating color paint layer fills up the second groove.
[0014] The utility model is further configured as follows: the thickness of the first ceramic coating color paint layer and the second ceramic coating color paint layer are both 50-80 μm.
[0015] The utility model is further configured as follows: the ceramic coating topcoat layer is a colorless and transparent coating.
[0016] The utility model is further configured as follows: the thickness of the ceramic coating topcoat layer is 8-15 μm.
[0017] In summary, the utility model has the following beneficial effects:
[0018] 1. On the inner surface of the etched non-stick pan, through the double coating design of ceramic color paint layer and ceramic transparent topcoat layer and the construction method of two coatings and two bakings, the raised surface and recessed surface of the inner surface of the pan body are coated with non-stick ceramic coating, avoiding the sticking problem caused by the exposed metal on the raised surface of the existing etched non-stick pan; because the ceramic topcoat is colorless and transparent, the etched texture on the inner surface of the pan body is clearly visible. This coating structure not only improves the non-stick property of the pan body, but also meets the requirements of the appearance of etched pans.
[0019] 2. A ceramic non-stick coating is set on the etched non-stick pan. Since the ceramic coating has good high temperature resistance and will not decompose and release toxic substances at high temperatures, an etched non-stick pan with a healthy, safe and environmentally friendly PFAS-FREE non-stick coating is produced, which avoids the disadvantage of the existing etched non-stick pan being dry-burned at more than 250°C, which releases toxic substances that endanger the health of users.
[0020] 3. The inner surface of the pot body is provided with two adhesive layers, so that the ceramic non-stick coating and the non-stick coating and the pot body have good adhesion. In addition, the ceramic topcoat layer is a continuous coating, which can effectively prevent the coating from falling off on the concave surface and extend the service life of the pot.
[0021] 4. The inner and outer surfaces of the pot body can be coated with different colors as needed through the setting of ceramic paint layers, which increases the aesthetics of the pot body and changes the defect of the existing etched pot with a single color; on the other hand, the ceramic coating is easy to clean, so that the outer surface can maintain a beautiful appearance for a long time. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model. DETAILED DESCRIPTION
[0023] In order to enable those skilled in the art to better understand the technical solution of the utility model, the preferred implementation scheme of the utility model is described below in conjunction with specific embodiments, but it should be understood that these descriptions are only for further illustrating the features and advantages of the utility model, rather than limiting the patent requirements of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.
[0024] The utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.
[0025] Example 1
[0026] See also Figure 1As shown, a ceramic-coated non-stick pan with etched patterns involved in this embodiment includes a pan body, the pan body having a substrate layer 1, the inner surface of the substrate layer 1 is provided with a first groove 2, the first groove 2 is filled with a first ceramic coating color paint layer 3, the groove wall of the first groove 2 is coated with a first bonding layer 4 that tightly connects the groove wall and the first ceramic coating color paint layer, the inner surface of the substrate layer 1 is provided with a ceramic coating topcoat layer 5, the inner surface of the substrate layer 1 is coated with a second bonding layer 6 that tightly connects it to the ceramic coating topcoat layer, and the second bonding layer 6 is also connected to the first ceramic coating color paint layer 3.
[0027] Furthermore, a second groove 7 is formed on the outer surface of the substrate layer 1, and the second groove 7 is filled with a second ceramic paint layer 8. The groove wall of the second groove 7 is coated with a third bonding layer 9 that tightly connects the groove wall with the second ceramic paint layer.
[0028] Furthermore, the groove depth of the first groove 2 is greater than half of the thickness of the substrate layer 1 ; the groove depth of the second groove 7 is greater than half of the thickness of the substrate layer 1 ; and the first groove 2 and the second groove 7 are arranged in a staggered manner.
[0029] Furthermore, the inner surface area of the substrate layer 1 is smaller than the bottom area of the first groove 2 .
[0030] Furthermore, the substrate layer 1 is made of stainless steel or a composite stainless steel material in which the middle layer is made of aluminum alloy and the inner and outer layers are both made of stainless steel.
[0031] Furthermore, a first rough surface layer (not shown) formed on the wall of the first groove is provided between the first bonding layer 4 and the first groove 2; a second rough surface layer (not shown) formed on the wall of the second groove is provided between the third bonding layer 9 and the second groove 7.
[0032] Furthermore, the first ceramic coating color paint layer 3 completely fills the first groove 2 ; and the second ceramic coating color paint layer 8 completely fills the second groove 7 .
[0033] Furthermore, the thickness of the first ceramic paint layer 3 and the second ceramic paint layer 8 are both 50-80 μm.
[0034] Furthermore, the ceramic coating topcoat layer 5 is a colorless transparent coating.
[0035] Furthermore, the thickness of the ceramic coating topcoat layer 5 is 8-15 μm.
[0036] In this embodiment, by setting the substrate layer 1 to a stainless steel material or a composite stainless steel material in which the middle layer is an aluminum alloy material and the inner and outer layers are both stainless steel materials, the aluminum alloy has a high thermal conductivity and good thermal conductivity, so that the cooking oil is heated evenly during the heating process, avoiding the generation of a large amount of oil smoke due to excessively high temperature at the bottom of the pot.
[0037] Among them, the first rough surface layer forms an uneven rough surface by sandblasting or shot blasting, which can increase the contact area between the substrate and the coating and improve the bonding strength between the coating and the substrate. The roughness Ra is about 2.0-3.5μm. If the roughness is too small, the adhesion between the layers is poor and the coating is easy to fall off. If the roughness is too large, the coating appearance is uneven.
[0038] The second rough surface layer is a rough surface formed by mechanical grinding with sandpaper or grinding wheel, which can increase the contact area and improve the bonding strength between layers. The roughness Ra is about 0.5-2.0μm. If the roughness is too small, the adhesion between layers is poor and the coating is easy to fall off. If the roughness is too large, the coating appearance is uneven.
[0039] Among them, by setting the groove depth of the first groove 2 to be greater than half the thickness of the substrate layer 1, setting the groove depth of the second groove 7 to be greater than half the thickness of the substrate layer 1, and arranging the first groove 2 and the second groove 7 in a staggered manner, the effective conduction distance can be indirectly reduced, thereby making the heat conduction speed faster.
[0040] Construction process of ceramic non-stick coating on etched non-stick pan:
[0041] (1) Forming etching lines: forming a predetermined pattern of concave and convex lines on the inner and outer surfaces of the stainless steel or composite steel pot body by chemical etching, and the depth of the etching lines is about 50-80 μm;
[0042] (2) Sandblasting: The inner and outer surfaces of the substrate are sandblasted with 60-100 mesh quartz sand to form a bonding layer 1, and the roughness of the bonding layer 1 is Ra = 2-3.5 μm.
[0043] (3) Spraying ceramic paint layer: preheat the pot body to 45-55°C, first spray ceramic paint on the preset area on the inner surface of the pot body, and then cure it at 80-100°C for 8-10 minutes; then spray ceramic paint on the preset area on the outer surface of the pot body, and then cure it at 80-100°C for 8-10 minutes.
[0044] (3) Grinding: Use sandpaper or a grinding wheel to mechanically grind the preset areas on the inner and outer surfaces of the pot body, remove the ceramic paint on the convex surface of the preset texture on the inner and outer surfaces of the pot body, and retain the ceramic paint on the concave surface of the concave and convex texture; after grinding, the convex surface exposes the metal substrate, and the concave surface is filled with ceramic paint. And form a bonding layer 2 with a roughness of about 0.5-2.0μm. The bonding layer 2 improves the bonding strength between the ceramic topcoat layer and the bottom layer to prevent the coating from falling off.
[0045] (4) Spraying ceramic topcoat: Preheat the pan to 45-55°C, spray the ceramic topcoat on the preset area on the inner surface of the pan, and then cure it at 230-260°C for 10-20 minutes to obtain a non-stick pan with etched ceramic coating.
[0046] The utility model relates to a non-stick pan with a ceramic coating and etching patterns. The inner surface of the etched non-stick pan is provided with a double coating of a ceramic color paint layer and a ceramic transparent topcoat layer and a two-coating and two-baking construction method, so that both the raised surface and the recessed surface of the inner surface of the pan body are coated with a non-stick ceramic coating, thereby avoiding the sticking problem of the existing etched non-stick pan due to the absence of a coating on the raised surface of the texture and the exposed metal; since the ceramic topcoat is colorless and transparent, the etched patterns on the inner surface of the pan body are clearly visible. This coating structure not only improves the non-stick property of the pot body, but also meets the requirements of the appearance of etched pots; by setting a ceramic non-stick coating on the etched non-stick pot, due to the good high temperature resistance of the ceramic coating, it will not decompose and release toxic substances at high temperature, so that an etched non-stick pot with a healthy, safe and environmentally friendly PFAS-FREE non-stick coating is obtained, which avoids the disadvantages of the existing etched non-stick pot when it is dry-burned at more than 250°C, which releases toxic substances that endanger the health of users; by setting two adhesive layers on the inner surface of the pot body, the ceramic non-stick coating and the non-stick coating and the pot body have good adhesion, and the ceramic topcoat layer is a continuous coating, which can effectively prevent the coating from falling off on the concave surface and extend the service life of the pot; by setting a ceramic color paint layer on the inner and outer surfaces of the pot body, different colors can be applied as needed, which increases the aesthetics of the pot body and changes the defect of the single color of the existing etched pot; on the other hand, the ceramic coating is easy to clean, so that the outer surface can maintain a beautiful appearance for a long time, and the overall function is perfect and practical.
[0047] Unless otherwise specified, in the present invention, the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientation or positional relationship are based on the orientation or positional relationship actually shown, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in combination with the embodiments and according to specific circumstances.
[0048] Unless otherwise clearly specified and limited, in the present invention, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0049] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.
Claims
1. A non-stick pan with a ceramic coating having etched lines, comprising a pan body, the pan body having a substrate layer, characterized in that: A first groove is formed on the inner surface of the substrate layer, and the first groove is filled with a first ceramic paint layer. A first bonding layer is coated on the groove wall of the first groove so that the groove wall is tightly connected to the first ceramic paint layer. A ceramic paint topcoat layer is formed on the inner surface of the substrate layer, and a second bonding layer is coated on the inner surface of the substrate layer so that it is tightly connected to the ceramic paint topcoat layer, and the second bonding layer is also connected to the first ceramic paint layer.
2. The ceramic coating non-stick pan with etching patterns according to claim 1, characterized in that: The outer surface of the substrate layer is provided with a second groove filled with a second ceramic paint layer, and the groove wall of the second groove is coated with a third bonding layer to tightly connect the groove wall with the second ceramic paint layer.
3. The ceramic coating non-stick pan with etching patterns according to claim 2, characterized in that: The first grooves and the second grooves are arranged alternately.
4. The ceramic coated non-stick pan with etching patterns according to any one of claims 1 to 3, characterized in that: The inner surface area of the substrate layer is smaller than the bottom area of the first groove.
5. The ceramic coating non-stick pan with etching patterns according to claim 1, characterized in that: The substrate layer is made of stainless steel material or a composite stainless steel material in which the middle layer is made of aluminum alloy material and the inner and outer layers are both made of stainless steel material.
6. The ceramic coating non-stick pan with etching patterns according to claim 2, characterized in that: A first rough surface layer formed on the wall of the first groove is disposed between the first bonding layer and the first groove; a second rough surface layer formed on the wall of the second groove is disposed between the third bonding layer and the second groove.
7. The ceramic coating non-stick pan with etching patterns according to claim 2, characterized in that: The first ceramic coating color paint layer completely fills the first groove; the second ceramic coating color paint layer completely fills the second groove.
8. The ceramic coating non-stick pan with etching patterns according to claim 7, characterized in that: The thickness of the first ceramic paint layer and the second ceramic paint layer are both 50-80 μm.
9. The ceramic coating non-stick pan with etching patterns according to claim 1, characterized in that: The ceramic coating topcoat layer is a colorless transparent coating.
10. The ceramic coating non-stick pan with etching patterns according to claim 9, characterized in that: The thickness of the ceramic coating topcoat layer is 8-15 μm.