Pot opening rust-proof structure of enamel pot

Abstract

The pot comprises a pot body made of first metal and ceramic glaze attached to the inner wall of the pot, only a circle of second metal is arranged at the pot opening, the second metal and the first metal are fused at the pot opening to form a whole, and the second metal extends from the edge of the pot opening to the interior of the pot by 1-20 mm; the glaze is attached to the second metal at the diffusion edge of the pot opening, and the second metal isolates the glaze from the first metal at the pot opening. The enamel pot has the advantages that the problem that iron rust and rust water are prone to being generated at the pot opening of the enamel pot due to high-temperature sintering is solved, the second metal and the first metal are fused, so that an oxide layer channel between the second metal and the enamel layer is blocked by the second metal, and molten iron generated by the iron rust is avoided.

Description

Technical Field

[0001] The utility model belongs to the field of cookware, relates to an enamel pot, and particularly relates to an anti-rust structure for the pot mouth of an enamel cookware. Background Art

[0002] An enamel pot includes a metal body (iron) and an enamel layer attached to the metal surface, and the enamel is sintered at a high temperature of about 700-900 degrees, and then the appearance is polished. However, the position where the porcelain enamel combines with the metal is an untreatable part, and iron oxide will be generated at the joint between the metal body and the porcelain enamel during high-temperature sintering, and rust water is likely to be generated in the acidic and alkaline environment of cooking.

[0003] For example, a process for treating an enamel layer and an electroplated layer of an enamel pot disclosed in Patent Publication No. CN110419953B has the principle of electroplating at the flanging of the pot mouth of the cookware for the purpose of rust removal. However, electroplating can only be carried out on the metal and on the enamel cookware after sintering, and there will be an obvious demarcation line between the electroplating and the porcelain enamel layer, and this demarcation line is very likely to be the rusting environmental line. Summary of the Utility Model

[0004] The utility model provides an anti-rust structure for the pot mouth of an enamel cookware.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: an anti-rust structure for the pot mouth of an enamel cookware, the cookware includes a pot body made of a first metal and an enamel attached to the inner wall of the pot. Only a ring of a second metal is provided at the pot mouth, and the second metal is fused with the first metal to form an integral body at the pot mouth. The second metal extends 1-20 mm from the edge of the pot mouth into the pot; the diffusion edge of the enamel at the pot mouth position adheres to the second metal, and the second metal isolates the enamel from the first metal at the pot mouth position.

[0006] Further, the first metal is iron / 430 ferritic stainless steel, and the second metal is stainless steel / titanium / nickel / chromium / cobalt / tungsten / molybdenum metal.

[0007] Further, the first metal is stainless steel, and the second metal is titanium / nickel / chromium / cobalt / tungsten / molybdenum metal. The titanium / nickel / chromium / cobalt / tungsten / molybdenum metal includes titanium metal; or titanium-based metal; or nickel-based metal; or chromium-based metal; or cobalt-based metal; or molybdenum-based metal or tungsten carbide.

[0008] Further, the second metal is only fused on the surface of the first metal.

[0009] Another technical solution is: an anti-rust structure at the mouth of an enamel cookware. The cookware includes a pot body made of a first metal and enamel coatings attached to the inner and outer sides of the pot body. There is a flanging that turns outwardly around the mouth of the pot body; only a ring of a second metal is provided at the mouth of the pot, and the second metal is fused on the surface of the first metal to form an integral body; the enamel inside the pot body adheres to the second metal at the diffusion edge at the mouth position of the pot, and the second metal isolates the enamel inside the pot body from the first metal at the mouth position.

[0010] Further, the first metal is iron / 430 ferritic stainless steel, and the second metal is stainless steel / titanium / nickel / chromium / cobalt / tungsten / molybdenum metal.

[0011] Further, the first metal is stainless steel, and the second metal is titanium / nickel / chromium / cobalt / tungsten / molybdenum metal. The titanium / nickel / chromium / cobalt / tungsten / molybdenum metal includes titanium metal; or titanium-based metal; or nickel-based metal; or chromium-based metal; cobalt-based metal; molybdenum-based metal or tungsten carbide.

[0012] Further, the second metal covers the flanging and extends into the pot body from the flanging.

[0013] Compared with the prior art, the advantage of the present utility model is that it solves the problem that rust and rust water are likely to be generated during high-temperature sintering at the mouth of the enamel cookware. The second metal is fused with the first metal to block the oxide layer channel between the second metal and the enamel layer, avoiding the generation of iron water that causes rust. Brief Description of the Drawings

[0014] The present utility model will be further described in detail below in conjunction with the drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are only drawn for the purpose of explaining the preferred embodiments and should not be used as a limitation to the scope of the present utility model. In addition, unless otherwise specified, the drawings only schematically show the composition or structure of the described object and may include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0015] Figure 1 It is a schematic structural diagram of the present utility model.

[0016] Figure 2 It is a schematic structural diagram of the present utility model.

[0017] Figure 3 It is a schematic structural diagram of the present utility model.

[0018] Figure 4 It is a schematic structural diagram of the present utility model.

[0019] Figure 5 It is a schematic structural diagram of the present utility model.

[0020] In the figure, 1 is the pot body; 1-1 is the mouth of the pot; 2 is the second metal; 3 is the enamel. Detailed implementation manners

[0021] The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are only descriptive and exemplary, and should not be construed as limiting the protection scope of the present utility model.

[0022] It should be noted that: Similar reference numerals represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it may not be further defined and explained in subsequent drawings. Embodiment 1

[0023] Figure 1 As shown, for the anti-rust structure at the mouth of the enamel cookware, the cookware includes a pot body 1 made of a first metal such as iron / 430 stainless iron and an enamel 3 attached to the inner wall of the pot. Iron / 430 stainless iron is prone to generate iron oxide during the sintering process of the enamel 3. In order to prevent the iron oxide from affecting the cookware, the following structure is provided.

[0024] A ring of a second metal 2, such as stainless steel / titanium / nickel / chromium / cobalt / tungsten / molybdenum metal, is provided only at the upper edge of the pot mouth 1-1 of the pot body 1. The titanium / nickel / chromium / cobalt / tungsten / molybdenum metal includes titanium metal; or titanium-based metal (alloy); or nickel-based metal (alloy); or chromium-based metal (alloy); or cobalt-based metal (alloy); or molybdenum-based metal (alloy) or tungsten carbide.

[0025] The second metal 2 is only surface-clad on the pot mouth 1-1, so that the first metal and the second metal 2 are formed as a whole at the pot mouth 1-1.

[0026] Although stainless steel may also generate oxides, the above-mentioned stainless steel (304 stainless steel) clad on iron / 430 stainless iron has the lowest cost, and the situation of a small amount of oxide generation in stainless steel (304 stainless steel) is better than that of iron / 430 stainless iron. Although the combination of iron / 430 stainless iron and stainless steel is not the optimal solution, iron / 430 stainless iron has the advantage of low price, and the same is true for stainless steel. Therefore, it can be used as a combination in low-end cookware.

[0027] The enamel 3 is attached to the first metal below, and the diffusion edge (the upper termination edge) of the enamel 3 at the pot mouth 1-1 is attached to the second metal 2. By the superposition method, the second metal 2 isolates the enamel 3 from the first metal at the pot mouth 1-1. The oxide at the lower joint of the enamel 3 will not spread upward, and the second metal 2 makes an isolation on the oxide spreading line, so no rusty water will be generated.

[0028] The first metal extends downward from the edge of the pot mouth 1-1 into the interior of the pot body 1, preferably extending downward by 1-20 mm. Preferably, the outer side of the pot body 1 is also provided with the enamel 3.

[0029] Preferred solution: There is a turned-out flange around the pot opening 1-1 of the pot body 1. The second metal 2 covers the flange and extends downward from the flange to the lower part inside the pot body 1, with a downward extension of 1-20 mm. The flange can be directly polished. Embodiment 2

[0030] Figure 1 As shown, for the rust-proof structure at the pot opening 1-1 of the enamel pot, the pot consists of a pot body 1 made of a first metal such as stainless steel and an enamel 3 attached to the inner wall of the pot.

[0031] There is only a ring of second metal 2 such as titanium / nickel / chromium / cobalt / tungsten / molybdenum metal at the upper edge of the pot opening 1-1. The second metal 2 is only surface-clad on the pot opening 1-1, making the first metal and the second metal 2 integrated at the pot opening 1-1.

[0032] The enamel 3 is attached to the first metal below, and the diffusion edge (the upper termination edge) of the enamel 3 at the pot opening 1-1 is attached to the second metal 2. The second metal 2 isolates the enamel 3 from the first metal at the pot opening 1-1.

[0033] Preferred solution: There is a turned-out flange around the pot opening 1-1 of the pot body 1. The second metal 2 covers the flange and extends downward from the flange to the lower part inside the pot body 1, with a downward extension of 1-20 mm. The flange can be polished.

[0034] The titanium / nickel / chromium / cobalt / tungsten / molybdenum metal covers the flange. The titanium / nickel / chromium / cobalt / tungsten / molybdenum metal includes titanium metal; or titanium-based metal (alloy); or nickel-based metal (alloy); or chromium-based metal (alloy); or cobalt-based metal (alloy); or molybdenum-based metal (alloy) or tungsten carbide.

[0035] Figures 2 - 3 As shown, the flange can be directly polished, and part of the titanium / nickel / chromium / cobalt / tungsten / molybdenum metal is retained on the flange.

[0036] Figures 4 - 5 As shown, the titanium / nickel / chromium / cobalt / tungsten / molybdenum metal at the flange can also be completely ground and cut to expose the stainless steel. The exposed stainless steel surface layer here is a smooth surface and will no longer produce rust.

[0037] Preferably, the outer side of the pot body 1 is also provided with the enamel 3.

[0038] The above has introduced the present utility model. Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the present utility model and its core idea. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A rust-proof structure for the pot mouth of an enamel cookware, the cookware comprising a pot body made of a first metal and a enamel attached to the inner wall of the pot, characterized in that: Only a circle of second metal is provided at the pot mouth, the second metal is fused with the first metal at the pot mouth to form a whole, and the second metal extends 1-20mm from the edge of the pot mouth into the pot; The diffusion edge of the enamel at the pot mouth is attached to the second metal, and the second metal isolates the enamel from the first metal at the pot mouth.

2. The pot mouth anti-rust structure of the enamel cookware according to claim 1, characterized in that: The first metal is iron / 430 stainless iron, and the second metal is stainless steel / titanium / nickel / chromium / cobalt / tungsten / molybdenum metal.

3. The pot mouth anti-rust structure of the enamel cookware according to claim 1, characterized in that: The first metal is stainless steel, and the second metal is titanium / nickel / chromium / cobalt / tungsten / molybdenum metal, wherein the titanium / nickel / chromium / cobalt / tungsten / molybdenum metal includes titanium metal; or titanium-based metal; or nickel-based metal; or chromium-based metal; or cobalt-based metal; or molybdenum-based metal, or tungsten carbide.

4. The pot mouth anti-rust structure of the enamel cookware according to any one of claims 1 to 3, characterized in that: The second metal is only fused to the surface of the first metal.

5. A rust-proof structure for the pot mouth of an enamel cookware, the cookware comprising a pot body made of a first metal and enamel attached to the inner and outer sides of the pot body, characterized in that: The pot mouth is provided with a circle of outwardly turned flange; Only a circle of second metal is provided at the pot mouth, and the second metal is fused to the surface of the first metal to form a whole; The enamel in the pot body is attached to the second metal at the diffusion edge at the pot mouth, and the second metal isolates the enamel in the pot body from the first metal at the pot mouth.

6. The pot mouth anti-rust structure of the enamel cookware according to claim 5, characterized in that: The first metal is iron / 430 stainless iron, and the second metal is stainless steel / titanium / nickel / chromium / cobalt / tungsten / molybdenum metal.

7. The pot mouth anti-rust structure of the enamel cookware according to claim 5, characterized in that: The first metal is stainless steel, and the second metal is titanium / nickel / chromium / cobalt / tungsten / molybdenum metal, wherein the titanium / nickel / chromium / cobalt / tungsten / molybdenum metal includes titanium metal; or titanium-based metal; or nickel-based metal; or chromium-based metal; or cobalt-based metal; or molybdenum-based metal, or tungsten carbide.

8. The pot mouth anti-rust structure of the enamel cookware according to claim 5, characterized in that: The second metal covers the flange and extends from the flange into the pot body.

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