JP2001169901A - Vessel for cooking using heat in food preparation and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vessel for cooking using heat in food preparation which is good in thermal efficiency and is lessened in heating unevenness. SOLUTION: A pan 1 has a pan body 2 and a heating layer 3. The pan body 2 is made of SUS304 and consists of a base surface part 4 and side wall parts 5 continuous from this base surface part 4. The heating layer 3 is formed by joining a clad material 9 of a magnetic stainless steel material 8 consisting of SUS430 and an aluminum material 7 by bringing this aluminum material 7 side as a pan body 2 side. The heating layer 3 is formed by this clad material 9 to a shape corresponding to the shape of the outer flanks of the pan body 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooking container and a method of manufacturing the same, and more particularly to a cooking container having good thermal efficiency and less heating unevenness, and a method of manufacturing the same.

[0002]

Conventionally, as a cooking container having a different material disposed on the bottom side, there is a pot which can be cooked by, for example, an electromagnetic induction cooking device. As shown in FIG. 4, the pot 12 is made of a stainless steel pot body 11 such as SUS304 having a bottom portion 12 and a side wall portion 13 smoothly connected to the bottom portion 12, as shown in FIG. A plate made of a magnetic stainless steel material such as SUS430 is sealed by a molded kip 14 through a plate 15, and the aluminum 15
Once it is in a molten state, it is solidified, and the two are joined together.On the inner surface, if necessary, a non-adhesion containing fluorine as a main component is applied to the inner surface of the pot body 11 in order to prevent kogation and the like. The layer 16 is provided. In such a pot, the cap 14 made of a magnetic stainless steel material is placed on the electromagnetic induction heating cooker A, and the cap 14 is formed by electromagnetic induction.
Is heated to heat the pan from the bottom side.

However, a pot usable in such a conventional electromagnetic induction heating cooker has an aluminum plate 15 interposed between a cap 14 made of a magnetic material and a pot body 11,
Since it is adhered by welding, it is difficult to adhere to a bent or curved surface, so the cap 14 can cover the entire bottom surface 12 of the pot body 11 but the side wall 13 Could be provided only slightly. For this reason, in such a pan, since heating is performed almost only on the bottom surface, unevenness in heating is likely to occur during cooking, and there is still room for improvement in terms of thermal efficiency.

[0004] In addition, a cooking container in which different materials are arranged on the bottom side is liable to cause uneven heating during cooking, even if it is used for heating with a gas, an electric heater, or the like, and has a sufficient thermal efficiency. There is a problem that is not.

[0005] The present invention has been made in view of such problems, and an object of the present invention is to provide a cooking vessel having good heat efficiency and less heating unevenness. Another object of the present invention is to provide a method for manufacturing a cooking container having good thermal efficiency and less heating unevenness.

[0006]

According to a first aspect of the present invention, there is provided a heating cooking container comprising: a bottom surface of a cooking container main body comprising a bottom portion made of a metal material having good heat conductivity and a side wall portion continuing from the bottom portion. A clad material having a shape corresponding to the outer surface of the cooking vessel body is joined to the side. For this reason,
The clad material made of a different material can be extended not only to the bottom portion of the cooking container main body but also to the side wall portion side, and by combining various materials constituting the cooking container main body and the cladding material, the thermal efficiency of the heating cooking container can be improved. To improve,
Heat unevenness can be suppressed.

[0007] The cooking container according to a second aspect of the present invention is the cooking container according to the first aspect, wherein a non-adhesive layer containing a fluororesin as a main component is provided on an inner surface side of the cooking container body. For this reason, even if the thermal efficiency and the heating unevenness are improved, the inner surface of the cooking container main body is hardly scorched.

Further, the cooking container according to claim 3 is
The cladding material according to claim 1 or 2, wherein the cladding material is made of stainless steel and aluminum. For this reason, when this cooking vessel is used for an electromagnetic induction heating cooker, if stainless steel generates heat due to the electromagnetic induction of the electromagnetic induction heating cooker, the aluminum can efficiently transmit this heat to the cooking vessel main body, and furthermore, the thermal efficiency is improved. Is good and there is little heating unevenness.

According to a fourth aspect of the present invention, there is provided a method of manufacturing a cooking vessel, wherein the cooking vessel main body comprises a bottom portion made of a metal material having good heat conductivity and a side wall portion continuous from the bottom portion. In this method, a clad material is formed into a shape corresponding to the shape of the cooking container, and the clad material is joined from the bottom side of the cooking container body. For this reason, a heating cooking container in which the clad material extends to the side wall portion side can be easily manufactured.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a cooking container according to a first embodiment of the present invention will be described in detail with reference to FIGS.

FIG. 1 shows a cooking vessel according to an embodiment of the present invention.
Can be used for an electromagnetic induction heating cooker. The pot main body 2 serving as a cooking vessel main body is made of SUS304 which is a metal material having good heat conductivity, and smoothly continues from the bottom surface portion 4 to the bottom surface portion 4. A side wall 5 is formed, and a concave step 6 is formed in a lower intermediate portion of the side wall 5, and the heat generating layer 3 is provided from the step 6 to the bottom surface 4 side. The heating layer 3
As shown in FIG. 2, aluminum material 7 which is a non-magnetic metal material having good thermal conductivity and SUS4 which is a magnetic metal material material
A clad material 9 with a magnetic stainless steel material 8 made of 30. The clad material 9 has a thickness substantially the same as the depth of the concave portion of the step portion 6 described above, and has a curved shape with the aluminum material 7 on the inside corresponding to the shape from the bottom portion 4 to the step portion 6 of the side wall portion 5. The step 6 is formed by brazing, bombardment, brazing, etc. with aluminum.
And is joined so as to cover the bottom surface portion 4. A non-adhesive layer 10 mainly composed of a fluororesin such as Teflon is formed on the inner surface side of the pot body 2.

The operation of the above configuration will be described. When cooking using the pot 1, the pot 1 is placed on the electromagnetic induction heating cooker A, and the electromagnetic induction heating cooker A is activated. Then, the bottom of the pot 1 is made of the clad material 9 and the magnetic stainless steel material 8 comes into contact with the electromagnetic induction heating cooker A, so that the magnetic stainless steel material 8 generates heat by electromagnetic induction. This heat is conducted to the pot body 2 through the aluminum material 7 having good heat conductivity, and the cooking can be performed by the heat H. In the heating step as described above, in the present embodiment, the clad material 9 is formed into a bent shape, and the steps from the bottom portion 4 of the pot body 1 to the step portion 6 formed at the lower intermediate portion of the side wall portion 5 are performed. Because it was configured to cover,
Since the heat H is released not only from the bottom surface portion 4 of the pot body 2 but also from the lower side of the side wall portion 5, the heating efficiency is good and the heating unevenness is improved. Note that the range of electromagnetic induction caused by electromagnetic waves is limited and does not extend to the upper side of the side wall portion 5, but is limited to the step portion 6 formed in the lower intermediate portion as in this embodiment. If it is possible to generate heat sufficiently, the effect of improving the heating efficiency and the improvement of the uneven heating can be sufficiently expected.

Next, a method of manufacturing the pot 1 of this embodiment as described above will be described with reference to FIG. First, SUS30
4 is processed to form a pot body 2 having a stepped portion 6, and then a non-adhesive layer 10 is formed by coating the inner surface side of the pot body 2 with a fluororesin such as PTFE (tetrafluoroethylene resin). . On the other hand, the flat clad material 9A is subjected to a process such as forging or the like, so that the shape corresponding to the shape from the bottom part 4 of the pot body 2 to the step part 6 of the side wall part 5 with the aluminum material 7 side as an inner side is generated. The member 3A is formed. Then, the heating member 3A is brought closer to the aluminum material 7 from the bottom portion 4 side of the pot main body 2 so as to form a brazing material.
It can be manufactured by joining by any means such as explosion or brazing. In particular, in the case of brazing, since the clad material 9 is used, heat is reliably transmitted to the side wall portion 5 during brazing, and the clad material 9 can be reliably welded also to the side wall portion 5 side. In addition,
The non-adhesive layer 10 may be formed after joining the heat generating member 3A.

Thus, the clad material 9 composed of the aluminum material 7 and the magnetic stainless steel material 8 is
From the bottom to the lower middle part of the side wall part 5, and the heat generating layer 3 is joined to the lower middle part of the side wall part 5 by joining this from the bottom side of the pot body 2. It can be extended.

As described in detail above, the pot 1 of this embodiment is
Magnetic stainless steel 8 and aluminum on the bottom side of the pot body 2 made of SUS304 having good thermal conductivity and formed on the bottom side of the pot body 2 comprising the bottom part 4 and the side wall part 5 continuous from the bottom part 4. Since the clad material 9 is bonded to the material 7, the clad material 9 having the magnetic stainless steel material 8 can extend not only to the bottom surface 4 but also to the lower side of the side wall 5. Thereby, not only the bottom portion 4 but also the side wall portion 5 can be heated, so that the heating efficiency can be improved and the uneven heating can be improved. Furthermore, by providing the non-adhesive layer 10 containing a fluororesin as a main component on the inner surface side of the pot main body 2, the heating efficiency is improved, and even if the heating unevenness is improved, it is difficult to scorch.
In particular, in this embodiment, since the clad material 9 is made of the magnetic stainless steel material 8 and the aluminum material 7,
The magnetic stainless steel 8 effectively generates heat by electromagnetic induction,
Since the aluminum material 7 can efficiently transmit the heat to the pot main body 2, the heat efficiency is further improved.

The method of manufacturing the pot 1 according to the present embodiment employs a method of manufacturing the pot 1 on the bottom side of the pot main body 5 comprising a bottom portion 4 made of SUS304 having good heat conductivity and a side wall portion 5 continuing from the bottom portion 4. This is a method of forming a cladding material 9 of a magnetic stainless steel material 8 and an aluminum material 7 according to the shape, and joining the cladding material 9 from the bottom side of the pot body 2 to form the heat generating layer 3. Processing the clad material 9 into a shape corresponding to the shape of the outer surface of the pot body 2 by forging or the like,
By joining the aluminum material 7 to the pot main body 2 by welding or the like, the heat generating layer 3 made of the magnetic stainless steel material 8 can be extended not only to the bottom portion 4 but also to the side wall portion side 5. 2 can be easily manufactured. In particular, since the heat generating layer 3 is formed by processing the clad material 9 from the bottom portion 4 of the pot body 2 to a shape corresponding to the side wall portion 5 to form the heat generating member 3 and attaching it, The heating layer 3 can be arranged up to the height, and heating can be sufficiently performed from the side wall portion side, so that it is possible to improve the heating efficiency and to manufacture a cooking vessel with improved heating unevenness. Has become.

Although the cooking vessel of the present invention has been described above with reference to the case of a pot for an electromagnetic induction heating cooker, the present invention is not limited to the above-described embodiment, and various modifications can be made. . For example, the materials of the pot body 1 and the clad material 9 may be appropriately selected according to the intended use, and the pot body 1 may be another stainless material such as SUS430. Although the clad material 9 is made of the aluminum material 7 and the stainless steel material 8 made of SUS430, a copper material may be used instead of the aluminum material 7. Further, in the above-described embodiment, SUS430 is used as the stainless steel material 8 constituting the clad material 9 because it is a pot that can be used for an electromagnetic induction heating cooker, but SUS304 may be used in some cases.

Further, the cooking vessel is not limited to the pot used in the electromagnetic induction heating cooker as in the above-mentioned embodiment, but can be applied to a thing heated mainly by heat or a thing heated by an electric heater. It is applicable to various shapes such as a frying pan and a wok. Further, the present invention can be applied to a hot plate, an inner pot for a rice cooker, and the like. Also, non-adhesive layer
10 may not be necessary in some cases. Further, how far the heat generating layer 3 is provided on the side wall portion 5 can be changed as appropriate.
In this case, it is possible to manufacture the clad material 9 in a similar manner only by making the shape of the clad material 9 corresponding to the shape.

[0019]

According to the first aspect of the present invention, there is provided a heating and cooking container provided on a bottom surface side of a cooking container body comprising a bottom portion made of a metal material having good heat conductivity and a side wall portion continuous from the bottom portion. Since the clad material having a shape corresponding to the outer surface of the container main body is joined, the clad material made of a different material can be extended not only to the bottom portion of the cooking container main body but also to the side wall portion side. By variously combining the materials constituting the container body and the clad material, it is possible to improve the thermal efficiency of the heating cooking container and suppress uneven heating.

Further, in the heating cooking container according to the second aspect, since the non-adhesive layer mainly composed of a fluororesin is provided on the inner surface side of the cooking container main body according to the first aspect, the heat efficiency and the heating efficiency are improved. Even if the unevenness is improved, the cooking container body is less likely to be scorched.

Further, the cooking container according to claim 3 is
In claim 1 or 2, since the cladding material is made of stainless steel and aluminum, when this cooking vessel is used for an electromagnetic induction heating cooker, the stainless steel generates heat by electromagnetic induction of the electromagnetic induction heating cooker. Then
This heat can be efficiently transmitted to the cooking container body by the aluminum, and the heat efficiency is good and the heating unevenness is small.

According to a fourth aspect of the present invention, there is provided a method for manufacturing a cooking container, comprising: a bottom portion of a cooking container body having a bottom portion made of a metal material having good heat conductivity and a side wall portion continuing from the bottom portion. In this method, the clad material is formed into a shape corresponding to the shape of the outer surface of the cooking vessel main body because the clad material is formed and processed in accordance with the shape of the cooking vessel main body. By joining to the main body, a heating cooking container in which the clad material extends to the side wall portion side can be easily manufactured.

[Brief description of the drawings]

FIG. 1 is a vertical cross-sectional view illustrating a pot serving as a cooking container according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a configuration of a clad material.

FIG. 3 is a schematic view showing a method for manufacturing the pot of FIG. 1;

FIG. 4 is a longitudinal sectional view showing a conventional cooking pot serving as a cooking pot.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pot (heating cooking container) 2 Pot main body (cooking container main body) 3 Heat generation layer (cladding material) 4 Bottom part 5 Side wall part 7 Aluminum material 8 Stainless steel material 9 Clad material 10 Non-adhesive layer

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) // B23K 20/08 B23K 20/08 B B23K 103: 20 B23K 103: 20 F term (Reference) 3K051 AB04 AD33 CD43 CD44 CD45 4B055 AA01 BA22 BA63 BA80 CA02 CA04 CA19 CB16 CC52 DA02 DB14 FA02 FA03 FA04 FA06 FB02 FB05 FB36 FC08 FC20 FD03 FE04 FE10 4E067 AA03 AA05 AA22 BE00 BM00 DA13 DA17 EB00

Claims (4)

[Claims] 1. A cladding material having a shape corresponding to the outer surface of the cooking vessel main body on the bottom side of the cooking vessel main body made of a metal material having good heat conductivity and having a bottom portion and a side wall portion continuous from the bottom portion. A cooking vessel characterized in that it is bonded to a cooking container. 2. The cooking container according to claim 1, wherein a non-adhesive layer containing a fluororesin as a main component is provided on an inner surface side of the cooking container main body. 3. The cooking container according to claim 1, wherein the clad material is made of stainless steel and aluminum. 4. A clad material is formed in accordance with a shape of a bottom surface side of a cooking vessel main body made of a metal material having good thermal conductivity and having a bottom portion and a side wall portion continuous from the bottom portion,
A method for producing a heating cooking container, comprising joining the clad material from the bottom side of the cooking container body.