Uncoated pot utensils

Abstract

To provide uncoated pot utensils. [Solution] The pot includes a pot body (1), the inner surface of which is coated with a non-stick sprayed layer (2). The non-stick sprayed layer includes a metal base layer, which coats the inner surface of the pot body and has multiple pores formed therein. The titanium metal sprayed layer is directly bonded to a steel substrate (5). The titanium layer is bonded by high-temperature spraying, resulting in extremely high adhesion and thermal stability. At the same time, the titanium layer works in conjunction with the pores to retain and lock in oil, thereby achieving non-stick properties. Furthermore, there is no risk of peeling, even during long-term, high-temperature stir-frying or accidental empty cooking, and the safety risk of chemical coatings contaminating ingredients is avoided.

Description

[Technical Field]

[0001] The present invention relates to the field of cooking utensils, and more particularly to uncoated cooking utensils. [Background technology]

[0002] When stir-frying with ordinary pans, ingredients tend to stick to the pan. This affects the quality of the stir-fry and makes cleaning the pan very difficult, resulting in a lot of inconvenience. Non-stick pans were developed to solve this problem, and all non-stick pans currently in use have a non-stick coating applied to the inner wall of the pan body. The most commonly used coating material is Teflon (scientific name: polytetrafluoroethylene), which effectively solves the problem of sticking and brings convenience to people's lives.

[0003] However, the non-stick coating on the inner wall of the pot is prone to falling off during use, especially when stir-frying over high heat, and the coating is even more likely to fall off if the non-stick pot is left to cook empty.Although polytetrafluoroethylene itself is non-toxic, when the pot is left to cook over high heat or cook empty, it carbonizes and decomposes, releasing trace amounts of toxic gases and substances that contaminate the food being cooked, resulting in problems such as food burning and the chemical coating being accidentally ingested. Summary of the Invention [Problem to be solved by the invention]

[0004] In view of the shortcomings of the prior art, the present invention provides a pot without a coating. [Means for solving the problem]

[0005] In order to solve the above technical problems, the present invention is solved by the following technical means.

[0006] An uncoated pot utensil includes a pot body, the surface of the pot body cavity being coated with a non-adhesive sprayed layer, the non-adhesive sprayed layer including a metal base layer, the metal base layer coating the pot body cavity by spraying and forming a plurality of holes.

[0007] In the above invention, preferably, the metal base layer is a titanium layer.

[0008] In the above device, preferably, the pot body comprises a steel outer layer, an aluminum middle layer, and a steel inner layer, and the non-stick thermal sprayed layer is provided on the steel inner layer.

[0009] In the above device, preferably, the aluminum middle layer is sandwiched between the steel outer layer and the steel inner layer.

[0010] In the above device, preferably, the aluminum intermediate layer is used for heat conduction from the inside to the outside of the pot body.

[0011] In the above device, preferably, the aluminum intermediate layer occupies at least 3 / 5 of the thickness of the pot body.

[0012] In the above invention, preferably, the non-stick thermal sprayed layer occupies 4 / 50 of the thickness of the pot body.

[0013] In the above device, preferably, the inner steel layer occupies 12 / 50 of the thickness of the pot body.

[0014] In the above device, preferably, the base material of the outer steel layer occupies 4 / 50 of the thickness of the pot body.

[0015] In the above invention, preferably, the outer steel layer and the inner steel layer are both made of 304 stainless steel. [Effects of the Invention]

[0016] The present invention has the following beneficial effects: This product employs a structure in which a titanium metal sprayed layer is directly bonded to a steel inner layer. The titanium layer is bonded by high-temperature spraying, resulting in extremely high adhesion and thermal stability. At the same time, the titanium layer works in conjunction with the pores to retain and lock in oil, thereby achieving non-stick properties. Furthermore, there is no risk of peeling even when frying over high heat for long periods of time or accidentally leaving the pan empty, and the safety risk of chemical coatings contaminating food is avoided. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a schematic diagram of the internal structure of the present invention; [Figure 2] FIG. 2 is an enlarged view of part A in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0018] The present invention will be described in more detail below with reference to the drawings and specific embodiments.

[0019] 1 and 2, the uncoated pot comprises a pot body 1 and a surface functional layer. The pot body 1 has a composite substrate structure, which includes, from outside to inside, a steel outer layer 3, an aluminum middle layer 4, and a steel inner layer 5.

[0020] Here, the outer steel layer 3 and the inner steel layer 5 are both made of 304 stainless steel, and the aluminum middle layer 4 is sandwiched between the outer steel layer 3 and the inner steel layer 5 using a hot-press composite process to form a three-layer combined pot body 1. Of these, the aluminum middle layer 4 accounts for more than 3 / 5 of the total thickness of the pot body 1, and serves as the core heat conduction medium to ensure rapid heat transfer inside and outside the pot while also reducing the overall weight of the pot body 1.

[0021] A non-stick sprayed layer 2 is formed on the inner surface of the pot body 1 using a high-temperature spraying process. The non-stick sprayed layer 2 includes a metal substrate. In this example, the metal substrate is a titanium layer, i.e., a titanium alloy, and molten titanium metal particles are sprayed at high speed onto the surface of the inner steel layer 5 to form a dense coating. During the spraying process, when the titanium particles solidify on the surface of the inner steel layer 5, a micron-sized pore structure is formed, and these pores interconnect to form a porous network.

[0022] The non-stick titanium sprayed layer has a porous structure that reduces the contact area with food, and in cooperation with oil that accumulates during use or is pre-applied at the time of product shipment, it achieves a non-stick effect that prevents food from burning inside the pot body 1. This eliminates the need for conventional organic coatings, avoids the risk of coating peeling, and combines high thermal conductivity and durability.

[0023] Furthermore, in this embodiment, the thickness of each layer is arranged as follows in terms of the ratio to the total thickness of the pot body 1: - Thickness ratio of steel outer layer 3: 4 / 50 - Aluminum middle layer 4 thickness ratio: 30 / 50 - Thickness ratio of steel inner layer 5: 12 / 50 - Titanium layer thickness ratio: 4 / 50

[0024] The above embodiments are merely for the purpose of illustrating the technical solutions of the present invention, and are not intended to limit the same. Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that modifications may be made to the technical solutions described in the above embodiments, or some of the technical features may be replaced with equivalents. Such modifications or replacements do not detract from the essence of the corresponding technical solutions and the spirit and scope of the technical solutions in the embodiments of the present invention.

Claims

1. The pot body (1) is provided with a non-adhesive sprayed layer (2) coated on the inner cavity surface of the pot body (1), the non-adhesive sprayed layer (2) including a metal base layer, the metal base layer being sprayed to coat the inner cavity of the pot body (1) and form a plurality of holes. This is a non-coated pot utensil.

2. The metal base layer is a titanium layer.

2. The uncoated pot according to claim 1.

3. The pot body (1) comprises a steel outer layer (3), an aluminum middle layer (4) and a steel inner layer (5), and the non-stick thermal spray layer (2) is provided on the steel inner layer (5).

3. The uncoated pot utensil according to claim 1 or 2.

4. The aluminum middle layer (4) is sandwiched between the steel outer layer (3) and the steel inner layer (5).

4. The uncoated pot according to claim 3.

5. The aluminum middle layer (4) is used for heat conduction inside and outside the pot body (1).

4. The uncoated pot according to claim 3.

6. The aluminum intermediate layer (4) occupies at least 3 / 5 of the thickness of the pot body (1).

5. The uncoated pot according to claim 4.

7. The non-stick thermal sprayed layer (2) occupies 4 / 50 of the thickness of the pot body (1).

3. The uncoated pot utensil according to claim 1 or 2.

8. The inner steel layer (5) occupies 12 / 50 of the thickness of the pot body (1).

4. The uncoated pot according to claim 3.

9. The base material of the steel outer layer (3) occupies 4 / 50 of the thickness of the pot body (1).

4. The uncoated pot according to claim 3.

10. The outer steel layer (3) and the inner steel layer (5) are both made of 304 stainless steel.

5. The uncoated pot according to claim 4.

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