KR20090082961A - A manufacture method of aluminum cookware and aluminum cookware - Google Patents

Abstract

A manufacturing method for an aluminum cooker having an induction heating function and the aluminum cooker are provided to relieve the deformation due to the thermal expansion coefficient difference of a metal heating plate. A manufacturing method for an aluminum cooker having an induction heating function is as follows. A hole(31) is formed by cutting a part of a heating plate(30), a supporting part(32) is set up the cut part, and a heating plate is arranged in a low die(100). A forming space is formed by connecting a mold(200) to the lower die and the heating plate is fixed to the low die floor. The aluminum alloy is injected in the forming space. The supporting part is insert-anchored in the floor of the cooker. The cooker is arranged in a forging press and an upward curved surface is formed on the center of the cooker bottom. The surface of the cooker is coated. The floor of the cooker is ground.

Description

Manufacturing method of induction heating aluminum cookware and induction heating aluminum cookware {A MANUFACTURE METHOD OF ALUMINUM COOKWARE AND ALUMINUM COOKWARE}

The present invention relates to a method for manufacturing an induction heating aluminum cookware and to an induction heating capable aluminum cookware manufactured by such a manufacturing method, and more particularly, to a metal heating plate integrated on the bottom of the cookware made of aluminum die-cast. The present invention relates to a method of manufacturing an induction heating capable aluminum cookware that can be used in an induction stove as well as to direct cooking using a gas stove, and to an aluminum cooking appliance capable of induction heating.

Induction range (also known as high frequency induction heater) is a cooking appliance that can replace the existing gas stove or microwave, it is safer, more economical and convenient than any heating cooker. The principle of operation of the induction stove is that when a current is sent to the coil under the stove top, a magnetic force line is generated in the coil, and when the magnetic force line passes through the bottom of a cookware (for example, a pot or pan) placed on the top plate, the cooker Vortex current is generated by the resistance component (iron component) contained in the material of the material. The eddy current generated at the bottom of the cooker heats only the cooking utensil itself, so that only the cooking utensils become hot without induction stove top plate heating. Lifting cookware from the induction stove will immediately stop heating. In addition, it is safe to touch the induction stove top plate by hand, and energy is generated because energy is generated only at the part where the pot touches.

On the other hand, the general kitchen cooking utensils are made of aluminum and aluminum alloy having excellent thermal conductivity and good moldability. The cooking utensils made of aluminum are not magnetic and thus cannot be used in induction stoves because induction heating does not occur. . Therefore, in the case of aluminum cookware, a method of attaching a magnetic metal to the bottom is applied to be used in direct heating and induction stoves. In other words, iron cooks are coated on aluminum cookware, stainless steel and aluminum clad material are formed by press, and aluminum cookware and heating plate (magnetic metal) are heated by high pressure press after heating the formed aluminum cookware. The aluminum cooking utensils to which the method of integrating them by hitting the plate), the method of joining the plate-shaped heating plate to the molded aluminum cooking utensil through the welding means, and the like are disclosed.

However, the structure of attaching and fixing the heating plate to the conventional aluminum cookware has the following problems.

First, in the case of cooking utensils in which iron is fused to aluminum, the heating efficiency is poor, and iron is easily dropped during washing of the cooking utensils. In addition, in the case of a cookware manufactured using stainless steel and aluminum cladding, only a drawing product of a simple shape can be molded, and only one part can be thickened in part in terms of function and design of the cookware product. It can't be molded and it can't diversify the product. In addition, the method of heating the molded aluminum cookware and hitting the heating plate with a press of high pressure causes deformation of the product when the molded cookware is heated or press strikes. In the case of cooking utensils attached to the heating plate through welding means, when food water and washing water boiled in the process of cooking and washing invade between the attachment parts of the heating plate, oxidation occurs from the part and peeling phenomenon easily occurs. have.

In addition, when a suitable thickness metal heating plate is adhered to the bottom of the bottom of a conventional aluminum cookware in a flat form, high heat is applied when cooking using an induction stove, and the bottom surface, which is a flat surface, thermally expands and protrudes from the center toward the heating surface. . Therefore, only the center of the bottom of the cooking vessel is in contact with the non-heating unit in the center portion of the induction stove does not properly transmit the magnetic force to the cooking utensils, which causes a decrease in thermal efficiency and increase the cooking time.

The present invention is to solve this problem; An object of the present invention is to improve the heating plate attachment structure that is arranged to enable induction heating in the aluminum cookware to prevent the peeling phenomenon when using the cookware, induction heating capable of forming the heating plate robustly and easily The present invention provides a method for manufacturing an aluminum cookware and an aluminum cookware capable of induction heating.

In addition, an object of the present invention is a method of manufacturing an induction heating and induction heating capable of induction heating that can be made more fully magnetic transfer by contacting the entire bottom surface of the aluminum cooking utensils when heating the aluminum cooking utensils This is to provide a possible aluminum cookware.

Method for producing an induction heating capable aluminum cookware according to the present invention for achieving this object; A method of manufacturing an aluminum cookware capable of induction heating to integrate a heating plate on the bottom of the aluminum cookware by placing a metal heating plate having magnetic properties between the lower mold and the upper mold forming the aluminum cookware forming space; The heating plate is formed in the form of a disc that is formed at the same height throughout the entire support portion formed by standing the cutout portion to the upper side while forming a hole by cutting a part, the heating plate arrangement disposed on the bottom center of the lower mold And forming the molding space by joining the upper mold to the lower mold upper part after the heating plate arrangement step, wherein the upper ends of the supporting parts are pressed on the bottom of the upper mold to closely adhere the heating plate to the lower mold bottom. A mold matching step of fixing and placing; A molten metal injection step of injecting the aluminum alloy dissolved in the molding space after the mold matching step to mold the aluminum cookware while the support parts of the heating plate are fixed to the bottom of the aluminum cookware; A step of pressing down the cooking utensils by placing the molded aluminum cookware after the melt injection step in a forging press to press down the center portion of the bottom of the aluminum cookware to have a convex curvature; A coating step of coating a surface of the aluminum cookware after passing the cookware bottom tapping step; A polishing step of polishing the bottom surface of the aluminum cookware in which the metal heating plate is inserted after the coating step; It is characterized by including.

In addition, the method of manufacturing an induction heating capable aluminum cookware according to the present invention is characterized in that the thermal expansion relaxation hole is perforated throughout the heating plate to alleviate thermal expansion.

In addition, the method of manufacturing an induction heating aluminum cookware according to the present invention is provided with a plurality of concentrically protruding bead portion protruding upward on the heating plate and extending in an arc direction with respect to the center of the heating plate; The bead portion is characterized in that the support portion and the thermal expansion relaxation holes are provided at regular intervals.

In addition, the method of manufacturing an induction heating capable aluminum cookware according to the present invention is formed in the heating plate bent peeling upwards along the edge; The peeling prevention jaw is characterized in that the insert is fixed to the bottom edge of the aluminum cookware.

In addition, the method of manufacturing an induction heating aluminum cookware according to the present invention is a center hole is formed in the center of the heating plate in the center, the center peeling bump is formed bent upward along the periphery of the center hole; The central peeling prevention jaw is characterized in that the insert is fixed to the bottom edge of the aluminum cookware.

In addition, the aluminum cooking utensil capable of induction heating according to the present invention is characterized in that the heating plate is manufactured by insert molding the bottom of the aluminum cooking utensil in the same manner as described above.

According to the present invention, a method for manufacturing an induction heating aluminum cookware and an aluminum cookware manufactured by the method according to the present invention; The metal heating plate which enables induction heating in the aluminum cookware is firmly attached to the bottom surface of the cookware by the supporting parts and the peeling prevention jaw, thereby preventing the peeling phenomenon of the metal heating plate and easily forming the metal heating plate. It can work. In addition, the deformation caused by the difference in thermal expansion coefficient of the aluminum alloy constituting the metal heating plate and the cooking utensil made of magnetic is alleviated by the holes and thermal expansion alleviating holes drilled in the metal heating plate, thereby preventing the damage of the cooking utensil.

In addition, even when a high temperature is applied when cooking using an induction stove, the entire bottom of the cookware is substantially flat even when the center portion of the cookware is thermally expanded toward the heating surface side, so that the entire bottom of the cookware is located at the center of the induction stove. Contact with the non-heating unit, the magnetic force is accurately transmitted to improve the thermal efficiency and there is an effect that can shorten the cooking time.

In addition, even when a high temperature is applied when cooking using an induction stove, the entire bottom of the cookware is substantially flat even when the center portion of the cookware is thermally expanded toward the heating surface side, so that the entire bottom of the cookware is located at the center of the induction stove. Contact with the non-heating unit, the magnetic force is accurately transmitted to improve the thermal efficiency and there is an effect that can shorten the cooking time.

Hereinafter, one preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. 1 to 3 schematically show the structure of the aluminum cooking utensil capable of induction heating according to the first embodiment of the present invention, Figures 4 to 8 shows the structure according to the first embodiment of the present invention. Block diagram and each step for explaining a method of manufacturing an aluminum cookware capable of induction heating is schematically shown. 9 and 10 show a bottom structure and a metal heating plate of the aluminum cookware according to the second embodiment of the present invention.

<Description of Structure of Aluminum Cookware According to the Present Invention>

Referring to FIG. 1, an aluminum cookware 10 capable of induction heating for a kitchen to which the present invention is applied is a die-cast product made of aluminum having excellent thermal conductivity, and has a bowl shape having an open top to allow food to be placed and heated. The handle 20 is attached to the outside of the edge thereof.

2 and 3, the metal heating plate 30 is integrated at the bottom of the aluminum cooking utensil 10 so that it can be used not only for direct cooking but also for induction stoves (induction heaters). The heating plate 30 is made of a magnetic metal plate having a magnetic insert is firmly inserted into the bottom bottom of the cooking utensil 10, the detailed structure thereof is as follows.

That is, a conductive metal plate such as iron (Fe) or an iron-containing alloy is transformed into a disc shape in accordance with the bottom size of the cooking utensil 10 by pressing. In addition, when the triangular holes 32 are formed by forming the triangular holes 31 by cutting a portion of the metal disc, which is depressed through the press process, into triangular shapes, forming the triangular holes 31, the support parts 32 are provided throughout the entire area. ) Is made of a metal heating plate 30 is provided.

These triangular supports 32 are shaped to be erected at right angles, and their vertical height is equal to the bottom thickness of the cooking utensil 10. The standing support parts 32 prevent the heating plate 30 from moving in the process of forming the aluminum cooking utensil 10 and serve as a hook so that the heating plate 30 is firm on the bottom of the aluminum cooking utensil 10. Insert to be fixed.

In the embodiment of the present invention, as shown in Figures 2 and 3, in order to more securely insert the heating plate 30, forming the bead portion 35 convex upward while forming an arc shape on the heating plate 30. After molding through processing, the triangular supports 32 were formed at regular intervals on the bead portions 35. In addition, circular thermal expansion relief holes 33 were drilled between the triangular supports 32. Accordingly, after the heating plate 30 is placed in the mold and the aluminum molten metal is injected, it escapes to the lower portion of the heating plate through the triangular holes 31 and the thermal expansion alleviation holes 33 and is filled to the lower portion of the bead part 35. As a result, the insert is more firmly fixed to the heating plate 30. This is described in detail in the manufacturing method described later. Most of the support parts 32 are configured in a triangular shape so as not to be peeled off the bottom of the aluminum cookware 10, which can of course be configured in various forms.

In addition, the peeling bump 34 is bent upward along the edge of the metal heating plate 30, so that the peeling bump 34 is insert-fixed to the bottom of the cooking utensil 10. In the first exemplary embodiment of the present invention, the peeling barrier 34 is bent toward the center at the edge of the metal heating plate 30 to form a hook shape.

On the other hand, in the metal heating plate 30, not only the bead portion 35 but also the plate expansion surface thermal expansion relaxation holes 33 are perforated to alleviate thermal expansion. In the embodiment of the present invention, although the thermal expansion alleviation hole 33 is punched in a circular shape, it is a matter of course that it can be configured as a rectangular or square, rhombus, polygonal hole.

In addition, a central peel prevention jaw 36 for preventing peeling is formed at the center of the metal heating plate 30 to prevent thermal expansion. The center peeling prevention jaw 36 is formed by bending the edge of the center hole drilled in the center of the metal heating plate 30 upward. This also forms a hook shape so that the center portion of the metal heating plate 30 is more firmly inserted into the insert. To be.

<Description of the manufacturing method of the aluminum cookware according to the present invention>

The method of manufacturing an induction heating capable aluminum cookware according to the present invention in which the metal heating plate 30 is integrally formed on the bottom of the aluminum cookware 10 is illustrated in FIG. 4; Heating plate arrangement step (S10) for arranging the heating plate 30 in the lower mold 10, and the mold matching step (S20) for matching the upper mold 200 on the lower mold 100, the heating plate 30 is disposed , Melt injection step (S30) for injecting the molten aluminum alloy between the lower mold 100 and the upper mold 200, and the cooking utensil to press down so that the bottom center of the formed aluminum cookware 10 is convex upwards. A bottom pressure step (S40), a coating step (S50) for coating the surface of the molded aluminum cookware 10, and a polishing step (S50) for polishing the bottom surface of the aluminum cookware (10). Hereinafter, each step will be described in detail with reference to FIGS. 4 to 8.

First, as shown in FIG. 5, the heating plate arrangement step S10 is a process of arranging the metal heating plate 30 at the bottom center of the lower mold 100 for forming the aluminum cooking appliance 10. That is, the upper mold 200 is separated from the lower mold 100, and then the metal heating plate 30 is seated on the bottom center of the lower mold 100. In this case, the support part 32 is formed over the entire metal heating plate 30. Are placed so that they face upwards.

As shown in FIG. 6, as shown in FIG. 6, the upper mold 200 is placed on the lower mold 100 on which the metal heating plate 30 is disposed, and the aluminum cooking utensils 10 are disposed therebetween. A molding space S for molding is formed. In addition, when the upper mold 200 is lowered and coincided with the bottom of the upper mold 200, the tips (top) of the support parts 32 are pressed and pressed, so that the heating plate 30 moves without moving to the bottom of the lower mold 100. Closely fixed and placed. In addition, a small space may be formed between the bead part 35 of the heating plate 30 and the lower mold 100 to fill the molten aluminum.

And the molten metal injection step (S30) is shown in Figure 7, the molding space (S) between the lower mold 100 and the upper mold 200, the metal heating plate 30 is disposed through the mold matching step (S20). Injecting the aluminum alloy (Al) dissolved in the. That is, when the lower mold 100 and the upper mold 200 are matched and the aluminum alloy dissolved in a molten metal formed between them is instantaneously injected, the molten aluminum alloy is formed in the molding space S. Filled and molded into the aluminum cookware 10, of course, the metal heating plate 30 disposed in advance on the bottom bottom of the cookware 10 is insert-molded. At this time, even if the molten aluminum alloy is injected at a high pressure, the metal heating plate 30 is maintained firmly fixed to the lower mold 100 as described above, so that the bottom of the cooking utensil 10 is correctly positioned. The insert is fixed. In addition, the metal heating plate 30 is fixedly disposed to be exposed to the bottom surface of the cooking utensil 10, the peeling prevention jaw 34 and the central peeling prevention projection 36 formed along the edge of the metal heating plate 30 and installed throughout Since the supports 32 are inserted at the bottom of the cookware 10, they are not peeled off from the bottom of the cookware 10. In particular, the molten aluminum is filled in the lower surface of the bead part 35 through the triangular holes 31 and the thermal expansion alleviating holes 33, and thus the bead part 35 formed to protrude from the heating plate 30 is also cooked by the cooking appliance 10. By the insert is fixed to the bottom of the), the heating plate 30 is more firmly inserted so that no peeling phenomenon occurs.

In addition, the cooking utensil bottom pressure step (S40), as shown in Figure 8, after the melt injection step (S30) to place the molded aluminum cookware 10 in the forging press 300 to the aluminum cookware ( 10) is the process of tapping so that the bottom center is made of a convex curvature surface. When the high heat is applied to the bottom of the cookware 10, the bottom surface is thermally expanded and the center portion is curved and protruded toward the heating surface. The bottom center of the aluminum cookware 10 is convexly formed in advance so that the aluminum cookware ( This is to maintain the flat state when using 10). As such, when the bottom surface of the aluminum cookware 10 is kept in a flat state, the entire bottom of the cookware 10, that is, the entire metal heating plate 30 abuts on the heating surface (upper surface) of the induction stove (induction heater). Magnetic force will be transmitted throughout. In the embodiment of the present invention through the forging press 300 was formed so that the bottom center of the aluminum cookware 10 is made of a convex curvature surface about 0.3 ~ 0.5mm compared to the edge.

On the other hand, the coating step (S50) is a process of forming a primer coat, a mid coat and a top coat on the surface of the aluminum cookware 10 after the cooking utensil bottom pressure step (S40). Primer coat (primer coat) is a kind of overcoating applied to the surface of aluminum cookware.To increase corrosion resistance and adhesion, primer coating liquid is applied to the surface of aluminum cookware with a spray gun at a thickness of 8 to 12㎛ and then 300 It is formed by drying at ~ 350 ℃. The primer coating liquid used for the primer coat was mixed with approximately 17% of the nmp soluble mixture of polyamide, 4% of water, 67% of PTFE dispersion, 3.5% of carbon black dispersion, and 8.5% of silica dispersion. It was. Subsequently, a mid coat is a process of applying the mid coating liquid to the primer coat with a thickness of 8 to 12 μm with a spray gun. This mid coat is intended to cover the primer coat which may be harmful to the human body, wherein the mid coating liquid used is approximately 82% PTFE dispersion, 9% water, 3.2% aromatic hydrocarbon, 0.5% triethylamine, 0.4% oleic acid, and interface A mixture of 0.4% of the active agent, 3% of the carbon black dispersion and 1.5% of the mica is used. After the mid coat is formed a top coat which is harmless to the human body and increases the coating layer strength and prevents food from sticking. In other words, the top coat is sprayed onto the wet mid coat through a spray gun with irregular irregularities to form a discontinuous coating layer, or the top coating solution is applied onto the wet mid coat. It is formed to a thickness of ~ 12㎛.

The polishing step (S60) is a process of polishing the bottom of the aluminum cooking utensil 10 and the surface of the metal heating plate 30 that have undergone the coating step S50. In this step, the triangular hole 31 of the metal heating plate 30 is polished. And the bur which protrudes between the thermal expansion relaxation holes 33 and the like are cleanly removed.

As described above, the heating plate arrangement step of placing the metal heating plate 30 formed in the lower mold 100 with the support portions 32 having the same height as the upper surface of the cutout part while forming the hole 31 by cutting the part. (S10) → mold matching step (S20) of forming the molding space (S) while fixing the heating plate 30 to be in close contact with the bottom of the mold 100 (S20) → injecting the aluminum alloy dissolved in the molding space (S) heating plate ( Melting pouring step (S30) → cooking utensil 10 of forming the aluminum cooking utensil 10 so that the support portions 32 and the peeling prevention jaws 34 and 36 of the 30 are insert-fixed to the bottom of the cooking utensil 10. The bottom of the cooking utensil to press down the center of the bottom) pressure pressing step (S40) → coating step of coating the surface of the aluminum cookware (S50) → polishing to polish the bottom surface of the aluminum cookware (10) Go through a series of steps, such as step (S60); The metal heating plate 30 having magnetic inserts is fixed to the bottom lower surface of the cooking utensil 10, so that an aluminum cooking utensil capable of using an induction stove (induction heater) as well as direct cooking such as a gas stove is manufactured.

<Description of the action of the aluminum cookware manufactured according to the present invention>

Therefore, the metal heating plate 30 is firmly attached to the bottom lower surface of the aluminum cookware 10, as well as the bead part 35, the triangular support parts 32, and the peeling prevention jaws 34 and 36 are aluminum cookware ( Since the insert is completely fixed to the bottom of 10), the peeling phenomenon of the metal heating plate 30 does not occur even when the aluminum cookware 10 is used for a long time. This is because the upper mold 200 presses the support parts 32 in the molten metal injection step S30 to firmly fix the entire metal heating plate 30 to the bottom of the lower mold 100.

On the other hand, the coefficient of thermal expansion of the aluminum alloy constituting the metal heating plate 30 and the cooking utensil 10 having magnetic properties is different. Therefore, even when using the aluminum cookware 10 manufactured by the method according to the present invention by applying heat, according to the difference in the coefficient of thermal expansion by the holes 31 and the thermal expansion relaxation holes 33 formed while forming the support portions 32 Deformation is relaxed.

In addition, in the case of the aluminum cookware 10 manufactured by the method according to the present invention, the bottom center is composed of a curvature surface having a predetermined curvature. Therefore, even when a high heat is applied when cooking using an induction stove, the center of the cookware thermally expands and protrudes toward the heating surface side, but the entire bottom of the cookware 10 forms a flat surface. As a result, the entire bottom of the cooking utensil 10 is in contact with the non-heating part at the center of the induction stove so that the magnetic force is accurately transmitted to the cooking utensil 10.

In addition, in the first embodiment of the present invention, the triangular bead portion was formed by forming the bead portion on the heating plate, and then the triangular support portion was formed on the bead portion, but not limited thereto, as shown in FIGS. 9 and 10, the bead portion Even if the triangular supports are molded directly on the heating plate without molding, the desired purpose of the present invention can be achieved.

1 is a perspective view showing an aluminum cooking utensil capable of induction heating according to the present invention.

FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1 and shows a bottom structure of the aluminum cooking appliance according to the first embodiment of the present invention.

3 is a perspective view showing a metal heating plate according to a first embodiment of the present invention to enable induction heating.

4 is a block diagram illustrating a manufacturing process of the aluminum cooking appliance according to the first embodiment of the present invention.

FIG. 5 illustrates an arrangement of a heating plate according to the first embodiment of the present invention.

6 illustrates a mold matching step according to the first embodiment of the present invention.

7 illustrates a molten metal injection step according to the first embodiment of the present invention.

8 illustrates a bottom tapping step according to a first embodiment of the present invention.

9 is a cross-sectional view illustrating a bottom structure of the aluminum cooking appliance according to the second embodiment of the present invention.

10 is a perspective view showing a metal heating plate according to a second embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

10. Cookware 30. Metal heating plate

31.hole 32.support

33. Thermal expansion relief hole 34. Peeling bump

S10. Heating plate arrangement step S20. Mold matching step

S30 .. Melt injection step S40 .. Floor tapping step

S50 .. coating step S60 .. polishing step

Claims (6)

The metal heating plate 30 having magnetic properties is disposed between the lower mold 100 and the upper mold 200 forming the aluminum cooking utensil forming space S so that the heating plate 30 is disposed on the bottom of the aluminum cooking utensil 10. In the manufacturing method of the aluminum cookware capable of induction heating to integrate the; The heating plate 30 is formed in the shape of a disc that is formed at the same height throughout the entire support portion 32 formed by cutting the part to form a hole 31, the cut portion is formed upward, the heating plate 30 Heating plate arrangement step (S10) for placing on the bottom center of the lower mold 100; After the heating plate arrangement step (S10) to form the molding space (S) by matching the upper mold 200 on the lower mold 100, the support portion 32 on the bottom of the upper mold (200) A mold matching step (S20) of pressing the upper end of the mold to fix and arrange the heating plate 30 in close contact with the bottom of the lower mold 100; Injecting the aluminum alloy dissolved in the molding space (S) after the mold matching step (S20) by inserting the support 32 of the heating plate 30 is fixed to the bottom of the aluminum cooking utensil 10 while cooking the aluminum Melt injection step (S30) for molding the mechanism (10); After the melt injection step (S30), the molded aluminum cookware 10 is placed on the forging press 300 to press down so that the bottom center of the aluminum cookware 10 is convex upward. Cooking utensil bottom pressure step (S40) and; A coating step S50 of coating the surface of the aluminum cookware 10 after the cooking utensil bottom pressure step S40; After the coating step (S50) and the polishing step (S60) for polishing the bottom surface of the aluminum cooking utensil 10 is inserted into the metal heating plate 30; Method for producing an induction heating capable aluminum cookware comprising a. The method of claim 1, The heating plate 30 is a method of manufacturing an aluminum cookware capable of induction heating, characterized in that the thermal expansion alleviation hole 33 is perforated throughout to reduce thermal expansion. The method of claim 2, The heating plate 30 is provided with a plurality of convexly protruding upwards and bead portions 35 extending in an arc direction concentrically with respect to the center of the heating plate 30; The bead part 35, the support part 32 and the thermal expansion relaxation holes 33 are provided at a predetermined interval, characterized in that the induction heating capable of manufacturing aluminum cookware. The method of claim 1, The heating plate 30 has a peeling prevention step 34 is formed bent upward along the edge; The method of manufacturing an aluminum cookware capable of induction heating, characterized in that the peeling prevention jaw (34) is insert fixed to the bottom edge of the aluminum cookware (10). The method of claim 1, The center hole of the heating plate 30 is formed in a circular center hole, the center peeling prevention projection 36 is bent upward along the periphery of the center hole; The center peel prevention jaw (36) is a method of manufacturing an aluminum cookware capable of induction heating, characterized in that the insert is fixed to the bottom edge of the aluminum cookware (10). Induction heating aluminum cookware which is manufactured by insert-molding the heating plate 30 in the bottom of the aluminum cookware 10 by the method of claim 1 to claim 3.

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