Composite cookware

Abstract

To provide a composite pot that is biocompatible, corrosion-resistant, and ensures overall rigidity and strength. [Solution] The pot body is made of a composite plate, which includes an inner layer 1, a middle layer 2, and an outer layer 3. The inner layer is a titanium layer with a non-stick surface 4 and a honeycomb void structure, the middle layer is aluminum or an aluminum alloy, and the outer layer is stainless steel. The composite plate is spun into the shape of a pot. The titanium metal inner layer is highly biocompatible and corrosion-resistant, and does not react chemically with food ingredients, ensuring absolute safety during the cooking process. The aluminum alloy middle layer, which has excellent thermal conductivity and accounts for at least half of the total thickness of the pot body, quickly and evenly disperses heat from the bottom of the pot throughout the entire body, improving cooking efficiency and quality. The stainless steel outer layer provides a solid structural framework for the entire pot, ensuring overall rigidity and strength during use and making it less likely to deform.

Description

[Technical Field]

[0001] This utility model relates to the field of cooking pot technology, and more particularly to a composite cooking pot. [Background technology]

[0002] Cookware is an essential tool for daily cooking, and its material and structure directly affect the cooking effect, user experience, and human health.

[0003] Among existing hot pot products, those made of a single material generally have performance limitations. For example, pure stainless steel hot pots have high structural strength and excellent durability, but poor thermal conductivity, which can lead to uneven heat distribution within the pot, resulting in overheating in some areas and underheating in others. This can cause food to burn or scorch, affecting cooking quality. Pure aluminum or aluminum alloy hot pots have excellent thermal conductivity, but are soft and lack structural strength. Furthermore, aluminum ions can leach out when they come into contact with acidic or alkaline ingredients, posing health risks when consumed over a long period of time. Summary of the Invention [Problem to be solved by the invention]

[0004] This utility model provides a composite pot to address the shortcomings of existing technologies. [Means for solving the problem]

[0005] To solve the above technical problems, the present invention provides the following technical solution: a composite pot, comprising a pot body, the pot body being made of a composite plate, the composite plate including an inner layer, a middle layer and an outer layer, the inner layer being a titanium layer, the middle layer being aluminum or an aluminum alloy, and the outer layer being stainless steel, and the composite plate being formed into a pot shape by a spinning process.

[0006] In the above solution, the intermediate layer is preferably used for heat conduction between the inside and outside of the pot body.

[0007] In the above solution, preferably, the intermediate layer occupies at least half the thickness of the pot body.

[0008] In the above solution, the inner layer preferably has a non-stick surface.

[0009] In the above solution, the outer layer is preferably made of 430 stainless steel to improve the structural strength of the pot body.

[0010] In the above solution, the intermediate layer preferably occupies three-fifths of the thickness of the pot body.

[0011] In the above solution, the inner layer preferably occupies one-fifth of the thickness of the pot body.

[0012] In the above solution, the outer layer preferably occupies one-fifth of the thickness of the pot body.

[0013] In the above solution, the composite plate is preferably bonded by a hot pressing composite process.

[0014] In the above solution, preferably, the inner layer has a honeycomb void structure to form a non-stick surface, which is used to store and retain oil and achieve non-stick performance. [Effects of the Invention]

[0015] The beneficial effects of this invention are as follows:

[0016] The inner layer of the pot is made of titanium, which is highly biocompatible and corrosion-resistant and does not react chemically with ingredients, ensuring absolute safety during the cooking process. The middle layer is made of aluminum alloy, which has excellent thermal conductivity and accounts for at least half of the pot's total thickness, allowing heat to be dispersed quickly and evenly from the bottom to the entire pot, improving cooking efficiency and quality. The outer layer is made of 430 stainless steel, providing a solid structural frame for the entire pot, ensuring overall rigidity and strength during use and making it less likely to deform. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. [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: Referring to Figures 1 and 2, the composite pot is made of a composite plate, i.e., a three-layer composite metal plate, which includes, from the inside to the outside, an inner layer 1, a middle layer 2, and an outer layer 3, in that order.

[0019] The inner layer 1 is a titanium layer, preferably made of commercially pure titanium, which comes into direct contact with food and is characterized by its high biocompatibility and corrosion resistance, ensuring safe cooking. The middle layer 2 is an aluminum alloy layer. Taking advantage of the excellent thermal conductivity of aluminum, the middle layer 2 quickly and evenly transfers the heat received by the bottom of the pot to the entire pot, effectively avoiding problems such as burning or scorching caused by localized overheating.

[0020] Finally, the outer layer 3 is a stainless steel layer, which provides the necessary structural rigidity and corrosion resistance to the external environment, ensuring the overall strength and service life of the pot. Preferably, the outer layer 3 is 430 stainless steel, which provides good mechanical strength and oxidation resistance.

[0021] Specifically, the composite plate is manufactured using a hot-press composite process to achieve a strong metallurgical bond between the three layers of metal, ensuring that the layers will not separate during subsequent processing and use. During molding, the composite plate is spun into a wok shape.

[0022] Specifically, a disk-shaped composite plate is fixed to a core mold that matches the shape of the pot cavity, and the core mold rotates the composite plate at high speed. At this time, a spinning roller applies continuous and uniform pressure to the edge of the composite plate, causing plastic deformation and gradually adhering it to the surface of the core mold, ultimately forming the desired pot shape.

[0023] Alternatively, the composite plate is pultruded by a press machine. A circular composite plate is placed in a mold in the cavity of the pot body, and the pot body is formed by rapid pressing by the press machine.

[0024] To achieve physical non-stick properties, the inner layer 1 is provided with a honeycomb void structure to form a non-stick surface 4. These micron-level voids effectively absorb oil during use, forming a natural and long-lasting non-stick oil film, achieving outstanding non-stick properties.

[0025] Specifically, the multiple voids distributed in the outer layer 3 (i.e., the titanium layer) are micron-sized pores, and when the pot is in use, these densely packed micron-sized pores preferentially absorb and store a small amount of cooking oil. With continued use and oil accumulation, this oil layer reaches a certain thickness, and eventually a uniform and stable thin film of natural oil is formed on the entire surface of the titanium layer, creating a non-stick surface 4.

[0026] The intermediate layer 2 should occupy at least half of the total thickness of the pot body to ensure its leading rapid heat conduction effect, and preferably its thickness ratio is 3 / 5 of the total thickness of the pot body.

[0027] Accordingly, the thickness of the inner layer 1 and the outer layer 3 each accounts for one-fifth of the total thickness of the pot body. With the titanium layer forming an effective non-stick surface 4 and the outer layer 3 providing sufficient support, the heat conduction advantages of the aluminum layer are fully utilized and the weight of the pot is reduced.

[0028] The above embodiments are merely for 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, those skilled in the art should understand that it is still possible to modify the technical solutions described in the above embodiments or make equivalent substitutions for some technical features; however, these modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A composite pot utensil includes a pot body, the pot body being made of a composite plate, the composite plate including an inner layer (1), a middle layer (2) and an outer layer (3), the inner layer (1) being a titanium layer, the middle layer (2) being aluminum or an aluminum alloy, and the outer layer (3) being stainless steel, and the composite plate being formed into a pot shape by a spinning process. A composite pot utensil characterized by the above.

2. The intermediate layer (2) is used for heat conduction inside and outside the pot body.

2. The composite pot according to claim 1.

3. The intermediate layer (2) occupies at least half of the thickness of the pot body.

3. The composite pot according to claim 1 or 2.

4. The inner layer (1) is provided with a non-stick surface (4).

2. The composite pot according to claim 1.

5. The outer layer (3) is made of 430 stainless steel, which improves the structural strength of the pot body.

2. The composite pot according to claim 1.

6. The intermediate layer (2) occupies three-fifths of the thickness of the pot body.

4. The composite pot according to claim 3.

7. The inner layer (1) occupies one-fifth of the pot body thickness.

7. The composite pot according to claim 6.

8. The outer layer (3) occupies one-fifth of the pot body thickness.

8. The composite pot according to claim 7.

9. The composite plates are bonded by a hot pressing composite process.

2. The composite pot according to claim 1.

10. The inner layer (1) is provided with a honeycomb-like void structure to form a non-stick surface (4), which is used to store and retain oil and achieve non-stick performance.

5. The composite pot according to claim 4.

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