US20160354826A1 - Combination Method of Heating Device of Pot/Kettle - Google Patents
Combination Method of Heating Device of Pot/Kettle Download PDFInfo
- Publication number
- US20160354826A1 US20160354826A1 US14/732,818 US201514732818A US2016354826A1 US 20160354826 A1 US20160354826 A1 US 20160354826A1 US 201514732818 A US201514732818 A US 201514732818A US 2016354826 A1 US2016354826 A1 US 2016354826A1
- Authority
- US
- United States
- Prior art keywords
- pot
- kettle
- aluminum
- aluminum plate
- aluminum block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/18—Making hollow objects characterised by the use of the objects vessels, e.g. tubs, vats, tanks, sinks, or the like
- B21D51/22—Making hollow objects characterised by the use of the objects vessels, e.g. tubs, vats, tanks, sinks, or the like pots, e.g. for cooking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/022—Stamping using rigid devices or tools by heating the blank or stamping associated with heat treatment
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/002—Construction of cooking-vessels; Methods or processes of manufacturing specially adapted for cooking-vessels
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/004—Cooking-vessels with integral electrical heating means
Definitions
- the present invention relates to a combination method of a heating device of a pot/kettle.
- a conventional electric cooker comprises an intermediate pot, an inner pot placed in the intermediate pot, and a heating device mounted on the bottom of the intermediate pot.
- the inner pot is heated to reach a high temperature so as to cook food, such as rice, meat and the like.
- the heating device includes an electric heating tube.
- the intermediate pot is made of aluminum which has a better heat conductive feature. The aluminum is soft so that the intermediate pot usually has a greater thickness to increase the weight and the cost.
- the electric heating tube is coated with an aluminum layer which is then combined with the intermediate pot made of stainless steel.
- the aluminum layer is combined with the intermediate pot by a high frequency.
- the aluminum layer and the intermediate pot are made of different material so that they only have a surface combination.
- the aluminum layer and the intermediate pot have different expansion and contraction coefficients so that the aluminum layer and the intermediate pot are expanded with different extents and are easily detached from each other.
- the electric heating tube is easily separated from the intermediate pot due to an accidental hit.
- a conventional working method of a saucepan comprises inverting a pan with the bottom of the pan facing upward, placing an aluminum block on the pan, placing a stainless material on the aluminum block, performing a heating step, and performing a stamping step to form a product.
- the stainless material is combined with the pan by the aluminum block.
- the aluminum block is easily squeezed outward from the bottom of the pan during the stamping process, thereby decreasing the quality of the product.
- the primary objective of the present invention is to provide a combination method of a heating device of a pot/kettle, with an aluminum plate being disposed between a pot/kettle and an aluminum block, and with the pot/kettle being combined with the aluminum block by a high-speed stamping process.
- the combination method includes the following procedures: (1) pre-casting an electric heating tube or a magnetically conducting metal into an aluminum block; (2) performing a preheat step to heat the aluminum plate, the aluminum block and the pot/kettle to reach a temperature ranged between 200° C.
- the aluminum block and the aluminum plate are placed into a heating furnace to perform the preheat step, and the pot/kettle is heated by a high frequency to reach a preset temperature and then placed on the die assembly to perform the high-speed stamping process.
- the die assembly is formed with a covering edge, and when the pot/kettle or an intermediate pot is placed on the aluminum plate, the covering edge of the die assembly seals a gap defined between the bottom of the pot/kettle or the intermediate pot and the aluminum block to prevent the aluminum plate from being squeezed outward, so that the aluminum plate is filled with the gap.
- the preheat step is performed to reach the preset temperature, and the high-speed stamping process is then performed to form the product, so that the intermediate pot or the pot/kettle is combined with the aluminum block tightly and closely.
- the aluminum plate and the intermediate pot or the pot/kettle are processed by the preheat step and the high-speed stamping process to have a forging effect, so that the bottom of the intermediate pot or the pot/kettle has a smooth surface without needing a secondary working process, thereby saving the working time and labor, and thereby decreasing the cost of fabrication.
- the product has a high quality and has a higher productivity.
- FIG. 1 is an exploded perspective view of an electric cooker manufactured by a method in accordance with the preferred embodiment of the present invention.
- FIG. 2 is a flow chart showing combination of an intermediate pot of the electric cooker and a heating device in accordance with the preferred embodiment of the present invention.
- FIG. 3 is a cross-sectional view showing the covering edge of the die assembly seals and covers a gap defined between the bottom of the intermediate pot and the aluminum block.
- FIG. 4 is a perspective assembly view of the electric cooker as shown in FIG. 1 .
- FIG. 5 is a flow chart showing combination of a pot/kettle and a heating device in accordance with the preferred embodiment of the present invention.
- FIG. 1 is an exploded perspective view of an electric cooker manufactured by a method in accordance with the preferred embodiment of the present invention.
- An electric heating tube 11 is pre-cast into an aluminum block 1 .
- an intermediate pot 3 which is made of stainless material. It is difficult to combine two metallic elements made of different material. In the conventional method for combining two metallic elements made of different material, the combination of the two metallic elements is poor, and the productivity is low. In addition, the conventional method for combining two metallic elements needs more labors and has complicated working procedures, thereby increasing the cost of fabrication. Further, the quality of the product made by the conventional method is poor.
- a die assembly 5 is provided.
- the die assembly 5 is formed with a covering edge 51 (see FIG. 3 ) for placing the aluminum block 1 which is pre-cast with the electric heating tube 11 .
- an aluminum plate 2 is placed on the aluminum block 1 .
- the intermediate pot 3 is placed on the aluminum plate 2 .
- the aluminum block 1 , the aluminum plate 2 and the intermediate pot 3 are processed by a preheat step 4 .
- a high-speed stamping process 6 is performed to form a product 7 .
- the aluminum block 1 and the aluminum plate 2 are initially placed into a heating furnace and are heated to reach a preheat temperature ranged between 200° C. and 450° C.
- the intermediate pot 3 is heated by a high frequency.
- the high-speed stamping process 6 is performed by a helical stamping head. In the high-speed stamping process 6 , the aluminum plate 2 is rapidly squeezed and rubbed by an upper die to combine the aluminum block 1 and the intermediate pot 3 tightly and closely.
- the die assembly 5 is formed with the covering edge 51 to limit the aluminum plate 2 so as to prevent the aluminum block 1 from compressing the aluminum plate 2 (which is softened after the preheat step 4 ) to protrude outward from the bottom of the intermediate pot 3 during the high-speed stamping process 6 .
- the covering edge 51 of the die assembly 5 seals and covers a gap 20 defined between the bottom of the intermediate pot 3 and the aluminum block 1 to limit the aluminum plate 2 . In such a manner, when the bottom of the intermediate pot 3 is stamped during the high-speed stamping process 6 , the aluminum plate 2 is stamped and is filled with the gap 20 rapidly. Thus, the bottom of the intermediate pot 3 is tightly and closely combined with the aluminum block 1 by the aluminum plate 2 .
- the aluminum plate 2 when the aluminum plate 2 is stamped, the aluminum plate 2 only covers the bottom of the intermediate pot 3 and the periphery of the aluminum block 1 (as shown in FIG. 4 ), and will not being spilled outward from the aluminum block 1 , thereby preventing from a further working procedures, including cutting and polishing.
- the intermediate pot 3 is replaced by a pot/kettle 30 which is made of metallic or stainless material, and the electric heating tube 11 is replaced by a magnetically conducting ring 12 .
- the method in accordance with another preferred embodiment of the present invention is available for a heating device of the pot/kettle 30 which is used for a gas burner or an electromagnetic burner.
- the aluminum block 1 is pre-cast with the magnetically conducting ring 12 which is made of a magnetically conducting metal.
- the aluminum block 1 pre-cast with the magnetically conducting ring 12 , the aluminum plate 2 and the pot/kettle 30 are combined integrally. In combination, the aluminum block 1 , the aluminum plate 2 and the pot/kettle 30 are processed by the preheat step 4 .
- the preheat temperature (ranged between 200° C. and 450° C.) of the preheat step 4 is reached, the aluminum block 1 , the aluminum plate 2 and the pot/kettle 30 are placed on the die assembly 5 . Then, the high-speed stamping process 6 is performed to form the product 7 .
- the die assembly 5 is formed with a covering edge 51 .
- the covering edge 51 of the die assembly 5 seals and covers the gap 20 defined between the bottom of the pot/kettle 30 and the aluminum block 1 to limit the aluminum plate 2 .
- the aluminum plate 2 is stamped and is filled with the gap 20 rapidly so that the aluminum block 1 will not be compressed out of the bottom of the pot/kettle 30 during the high-speed stamping process 6 .
- the bottom of the pot/kettle 30 is tightly and closely combined with the aluminum block 1 by the aluminum plate 2 , without producing any clearance between the bottom of the pot/kettle 30 and the aluminum block 1 .
- the aluminum block 1 is pre-cast with the electric heating tube 11 or the magnetically conducting ring 12 . Then, the aluminum block 1 is placed into the die assembly 5 and located at the bottom of the die assembly 5 . Then, the aluminum plate 2 is placed into the die assembly 5 and located above the aluminum block 1 . Then, the intermediate pot 3 or the pot/kettle 30 is placed on the die assembly 5 and located above the aluminum plate 2 , with the opening of the intermediate pot 3 or the pot/kettle 30 facing upward to facilitate the high-speed stamping process 6 .
- the method of the present invention is available for a non-planar pot bottom and is performed conveniently and rapidly.
- the preheat step 4 is performed to reach the preset temperature, and the high-speed stamping process 6 is then performed to form the product 7 , so that the intermediate pot 3 or the pot/kettle 30 is combined with the aluminum block 1 tightly and closely.
- the method of the present invention makes the product 7 quickly, saves the worker's labor, has a high quality and is available for mass production.
- the die assembly 5 the aluminum block 1 , the aluminum plate 2 and the intermediate pot 3 or the pot/kettle 30 are processed by the preheat step 4 and the high-speed stamping process 6 to have a forging effect, so that the product 7 has a smooth surface without needing further working procedures including cutting, grinding and polishing, thereby decreasing the cost of fabrication.
- the covering edge 51 of the die assembly 5 seals the gap 20 defined between the bottom of the intermediate pot 3 or the pot/kettle 30 and the aluminum block 1 to limit the aluminum plate 2 .
- the aluminum plate 2 is squeezed and expanded during the high-speed stamping process 6 , to fill the space between the bottom of the intermediate pot 3 or the pot/kettle 30 and the aluminum block 1 , so that the bottom of the intermediate pot 3 or the pot/kettle 30 is tightly and closely combined with the aluminum block 1 , without producing any clearance between the bottom of the intermediate pot 3 or the pot/kettle 30 and the aluminum block 1 .
- the method of the present invention simplifies the working procedures to save the later labor and transportation, has a high quality and is available for mass production to enhance the productivity.
- the aluminum block 1 is pre-cast with the electric heating tube 11
- the method of the present invention is used to make the pot/kettle 30
- the aluminum block 1 is pre-cast with the magnetically conducting ring 12
- the method of the present invention is used conveniently.
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cookers (AREA)
Abstract
A combination method of a heating device of a pot/kettle includes pre-casting an electric heating tube or a magnetically conducting metal into an aluminum block. Then, the aluminum plate, the aluminum block and the pot/kettle are heated to reach a preset temperature. Then, the aluminum plate, the aluminum block and the pot/kettle are stamped at a high speed so that the aluminum plate between the pot/kettle and the aluminum block is compressed instantaneously so as to combine the aluminum block with the bottom of the pot/kettle tightly and closely.
Description
- 1. Field of the Invention
- The present invention relates to a combination method of a heating device of a pot/kettle.
- 2. Description of the Related Art
- A conventional electric cooker comprises an intermediate pot, an inner pot placed in the intermediate pot, and a heating device mounted on the bottom of the intermediate pot. When the electric cooker is energized, the inner pot is heated to reach a high temperature so as to cook food, such as rice, meat and the like. The heating device includes an electric heating tube. The intermediate pot is made of aluminum which has a better heat conductive feature. The aluminum is soft so that the intermediate pot usually has a greater thickness to increase the weight and the cost.
- When the intermediate pot is made of stainless steel instead of aluminum, the electric heating tube is coated with an aluminum layer which is then combined with the intermediate pot made of stainless steel. The aluminum layer is combined with the intermediate pot by a high frequency. However, the aluminum layer and the intermediate pot are made of different material so that they only have a surface combination. Thus, when the heat from the electric heating tube is transmitted to the intermediate pot, the aluminum layer and the intermediate pot have different expansion and contraction coefficients so that the aluminum layer and the intermediate pot are expanded with different extents and are easily detached from each other. Thus, the electric heating tube is easily separated from the intermediate pot due to an accidental hit.
- A conventional working method of a saucepan comprises inverting a pan with the bottom of the pan facing upward, placing an aluminum block on the pan, placing a stainless material on the aluminum block, performing a heating step, and performing a stamping step to form a product. Thus, the stainless material is combined with the pan by the aluminum block. However, the aluminum block is easily squeezed outward from the bottom of the pan during the stamping process, thereby decreasing the quality of the product.
- The primary objective of the present invention is to provide a combination method of a heating device of a pot/kettle, with an aluminum plate being disposed between a pot/kettle and an aluminum block, and with the pot/kettle being combined with the aluminum block by a high-speed stamping process. The combination method includes the following procedures: (1) pre-casting an electric heating tube or a magnetically conducting metal into an aluminum block; (2) performing a preheat step to heat the aluminum plate, the aluminum block and the pot/kettle to reach a temperature ranged between 200° C. and 450° C.; (3) providing a die assembly for placing the aluminum block, with the electric heating tube or the magnetically conducting metal facing downward; (4) placing the aluminum plate on the aluminum block; (5) placing the pot/kettle above the aluminum plate, with a bottom of the pot/kettle facing downward; (6) performing a high-speed stamping process to stamp a bottom of an interior of the pot/kettle at a high speed, to squeeze and rub the aluminum plate which is filled with the bottom of the pot/kettle; and (7) combining the aluminum plate and the bottom of the pot/kettle with the aluminum block tightly and closely to form a product.
- Preferably, the aluminum block and the aluminum plate are placed into a heating furnace to perform the preheat step, and the pot/kettle is heated by a high frequency to reach a preset temperature and then placed on the die assembly to perform the high-speed stamping process.
- Preferably, the die assembly is formed with a covering edge, and when the pot/kettle or an intermediate pot is placed on the aluminum plate, the covering edge of the die assembly seals a gap defined between the bottom of the pot/kettle or the intermediate pot and the aluminum block to prevent the aluminum plate from being squeezed outward, so that the aluminum plate is filled with the gap.
- According to the primary advantage of the present invention, the preheat step is performed to reach the preset temperature, and the high-speed stamping process is then performed to form the product, so that the intermediate pot or the pot/kettle is combined with the aluminum block tightly and closely.
- According to another advantage of the present invention, the aluminum plate and the intermediate pot or the pot/kettle are processed by the preheat step and the high-speed stamping process to have a forging effect, so that the bottom of the intermediate pot or the pot/kettle has a smooth surface without needing a secondary working process, thereby saving the working time and labor, and thereby decreasing the cost of fabrication.
- According to a further advantage of the present invention, the product has a high quality and has a higher productivity.
- Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.
-
FIG. 1 is an exploded perspective view of an electric cooker manufactured by a method in accordance with the preferred embodiment of the present invention. -
FIG. 2 is a flow chart showing combination of an intermediate pot of the electric cooker and a heating device in accordance with the preferred embodiment of the present invention. -
FIG. 3 is a cross-sectional view showing the covering edge of the die assembly seals and covers a gap defined between the bottom of the intermediate pot and the aluminum block. -
FIG. 4 is a perspective assembly view of the electric cooker as shown inFIG. 1 . -
FIG. 5 is a flow chart showing combination of a pot/kettle and a heating device in accordance with the preferred embodiment of the present invention. -
FIG. 1 is an exploded perspective view of an electric cooker manufactured by a method in accordance with the preferred embodiment of the present invention. Anelectric heating tube 11 is pre-cast into analuminum block 1. There is provided with anintermediate pot 3 which is made of stainless material. It is difficult to combine two metallic elements made of different material. In the conventional method for combining two metallic elements made of different material, the combination of the two metallic elements is poor, and the productivity is low. In addition, the conventional method for combining two metallic elements needs more labors and has complicated working procedures, thereby increasing the cost of fabrication. Further, the quality of the product made by the conventional method is poor. - Referring to
FIG. 2 , a flow chart of combination of theintermediate pot 3 of the electric cooker and a heating device is shown. A dieassembly 5 is provided. The dieassembly 5 is formed with a covering edge 51 (seeFIG. 3 ) for placing thealuminum block 1 which is pre-cast with theelectric heating tube 11. Then, analuminum plate 2 is placed on thealuminum block 1. Then, theintermediate pot 3 is placed on thealuminum plate 2. Then, thealuminum block 1, thealuminum plate 2 and theintermediate pot 3 are processed by apreheat step 4. After a preset temperature is reached, a high-speed stamping process 6 is performed to form aproduct 7. - The
aluminum block 1 and thealuminum plate 2 are initially placed into a heating furnace and are heated to reach a preheat temperature ranged between 200° C. and 450° C. Theintermediate pot 3 is heated by a high frequency. When the preset temperature of thepreheat step 4 is reached, the high-speed stamping process 6 is performed by a helical stamping head. In the high-speed stamping process 6, thealuminum plate 2 is rapidly squeezed and rubbed by an upper die to combine thealuminum block 1 and theintermediate pot 3 tightly and closely. - Referring to
FIGS. 3 and 4 , thedie assembly 5 is formed with thecovering edge 51 to limit thealuminum plate 2 so as to prevent thealuminum block 1 from compressing the aluminum plate 2 (which is softened after the preheat step 4) to protrude outward from the bottom of theintermediate pot 3 during the high-speed stamping process 6. The coveringedge 51 of thedie assembly 5 seals and covers agap 20 defined between the bottom of theintermediate pot 3 and thealuminum block 1 to limit thealuminum plate 2. In such a manner, when the bottom of theintermediate pot 3 is stamped during the high-speed stamping process 6, thealuminum plate 2 is stamped and is filled with thegap 20 rapidly. Thus, the bottom of theintermediate pot 3 is tightly and closely combined with thealuminum block 1 by thealuminum plate 2. In addition, when thealuminum plate 2 is stamped, thealuminum plate 2 only covers the bottom of theintermediate pot 3 and the periphery of the aluminum block 1 (as shown inFIG. 4 ), and will not being spilled outward from thealuminum block 1, thereby preventing from a further working procedures, including cutting and polishing. - Referring to
FIG. 5 with reference toFIG. 2 , theintermediate pot 3 is replaced by a pot/kettle 30 which is made of metallic or stainless material, and theelectric heating tube 11 is replaced by a magnetically conductingring 12. Thus, the method in accordance with another preferred embodiment of the present invention is available for a heating device of the pot/kettle 30 which is used for a gas burner or an electromagnetic burner. Thealuminum block 1 is pre-cast with the magnetically conductingring 12 which is made of a magnetically conducting metal. Thealuminum block 1 pre-cast with the magnetically conductingring 12, thealuminum plate 2 and the pot/kettle 30 are combined integrally. In combination, thealuminum block 1, thealuminum plate 2 and the pot/kettle 30 are processed by thepreheat step 4. When the preheat temperature (ranged between 200° C. and 450° C.) of thepreheat step 4 is reached, thealuminum block 1, thealuminum plate 2 and the pot/kettle 30 are placed on thedie assembly 5. Then, the high-speed stamping process 6 is performed to form theproduct 7. - Referring to
FIG. 5 with reference toFIG. 3 , the most important feature of the present invention is in that thedie assembly 5 is formed with acovering edge 51. The coveringedge 51 of thedie assembly 5 seals and covers thegap 20 defined between the bottom of the pot/kettle 30 and thealuminum block 1 to limit thealuminum plate 2. In such a manner, when the bottom of the pot/kettle 30 is stamped during the high-speed stamping process 6, thealuminum plate 2 is stamped and is filled with thegap 20 rapidly so that thealuminum block 1 will not be compressed out of the bottom of the pot/kettle 30 during the high-speed stamping process 6. Thus, the bottom of the pot/kettle 30 is tightly and closely combined with thealuminum block 1 by thealuminum plate 2, without producing any clearance between the bottom of the pot/kettle 30 and thealuminum block 1. - In the present invention, the
aluminum block 1 is pre-cast with theelectric heating tube 11 or the magnetically conductingring 12. Then, thealuminum block 1 is placed into thedie assembly 5 and located at the bottom of thedie assembly 5. Then, thealuminum plate 2 is placed into thedie assembly 5 and located above thealuminum block 1. Then, theintermediate pot 3 or the pot/kettle 30 is placed on thedie assembly 5 and located above thealuminum plate 2, with the opening of theintermediate pot 3 or the pot/kettle 30 facing upward to facilitate the high-speed stamping process 6. Thus, the method of the present invention is available for a non-planar pot bottom and is performed conveniently and rapidly. - Accordingly, the
preheat step 4 is performed to reach the preset temperature, and the high-speed stamping process 6 is then performed to form theproduct 7, so that theintermediate pot 3 or the pot/kettle 30 is combined with thealuminum block 1 tightly and closely. Thus, the method of the present invention makes theproduct 7 quickly, saves the worker's labor, has a high quality and is available for mass production. - In addition, be design of the
die assembly 5, thealuminum block 1, thealuminum plate 2 and theintermediate pot 3 or the pot/kettle 30 are processed by thepreheat step 4 and the high-speed stamping process 6 to have a forging effect, so that theproduct 7 has a smooth surface without needing further working procedures including cutting, grinding and polishing, thereby decreasing the cost of fabrication. - Further, the covering
edge 51 of thedie assembly 5 seals thegap 20 defined between the bottom of theintermediate pot 3 or the pot/kettle 30 and thealuminum block 1 to limit thealuminum plate 2. In such a manner, thealuminum plate 2 is squeezed and expanded during the high-speed stamping process 6, to fill the space between the bottom of theintermediate pot 3 or the pot/kettle 30 and thealuminum block 1, so that the bottom of theintermediate pot 3 or the pot/kettle 30 is tightly and closely combined with thealuminum block 1, without producing any clearance between the bottom of theintermediate pot 3 or the pot/kettle 30 and thealuminum block 1. - Further, the method of the present invention simplifies the working procedures to save the later labor and transportation, has a high quality and is available for mass production to enhance the productivity.
- Further, when the method of the present invention is used to make the
intermediate pot 3, thealuminum block 1 is pre-cast with theelectric heating tube 11, and when the method of the present invention is used to make the pot/kettle 30, thealuminum block 1 is pre-cast with the magnetically conductingring 12, the method of the present invention is used conveniently. - Although the invention has been explained in relation to its preferred embodiment(s) as mentioned above, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the present invention. It is, therefore, contemplated that the appended claim or claims will cover such modifications and variations that fall within the true scope of the invention.
Claims (3)
1. A combination method of a heating device of a pot/kettle, with an aluminum plate being disposed between a pot/kettle and an aluminum block, and with the pot/kettle being combined with the aluminum block by a high-speed stamping process, and the combination method comprising the following procedures:
(1) pre-casting an electric heating tube or a magnetically conducting metal into an aluminum block;
(2) performing a preheat step to heat the aluminum plate, the aluminum block and the pot/kettle to reach a temperature ranged between 200° C. and 450° C.;
(3) providing a die assembly for placing the aluminum block, with the electric heating tube or the magnetically conducting metal facing downward;
(4) placing the aluminum plate on the aluminum block;
(5) placing the pot/kettle above the aluminum plate, with a bottom of the pot/kettle facing downward;
(6) performing a high-speed stamping process to stamp a bottom of an interior of the pot/kettle at a high speed, to squeeze and rub the aluminum plate which is filled with the bottom of the pot/kettle; and
(7) combining the aluminum plate and the bottom of the pot/kettle with the aluminum block tightly and closely to form a product.
2. The method of claim 1 , wherein the aluminum block and the aluminum plate are placed into a heating furnace to perform the preheat step, and the pot/kettle is heated by a high frequency to reach a preset temperature and then placed on the die assembly to perform the high-speed stamping process.
3. The method of claim 1 , wherein the die assembly is formed with a covering edge, and when the pot/kettle or an intermediate pot is placed on the aluminum plate, the covering edge of the die assembly seals a gap defined between the bottom of the pot/kettle or the intermediate pot and the aluminum block to prevent the aluminum plate from being squeezed outward, so that the aluminum plate is filled with the gap.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US14/732,818 US20160354826A1 (en) | 2015-06-08 | 2015-06-08 | Combination Method of Heating Device of Pot/Kettle |
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US14/732,818 US20160354826A1 (en) | 2015-06-08 | 2015-06-08 | Combination Method of Heating Device of Pot/Kettle |
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US20160354826A1 true US20160354826A1 (en) | 2016-12-08 |
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US14/732,818 Abandoned US20160354826A1 (en) | 2015-06-08 | 2015-06-08 | Combination Method of Heating Device of Pot/Kettle |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030160053A1 (en) * | 2002-02-26 | 2003-08-28 | Kim Myung Suk | Pot with multi-layered bottom and manufacturing process thereof |
US20040226456A1 (en) * | 2003-05-16 | 2004-11-18 | Myung-Suk Kim | Triple bottom structure of cooking utensil and method for manufacturing the same |
US20110089153A1 (en) * | 2009-10-15 | 2011-04-21 | Yao Tsung Kao | combination structure of bottom of pan (kettle) body and heating apparatus |
US20160169600A1 (en) * | 2013-07-05 | 2016-06-16 | Uacj Corporation | Aluminum alloy brazing sheet and method for producing same |
US20170042370A1 (en) * | 2015-08-14 | 2017-02-16 | Tianyu Import & Export Trading Ltd. | Automatic Constant Temperature Cookware Utensil and Combined Structure with Eletro-magnetic Heating Device |
-
2015
- 2015-06-08 US US14/732,818 patent/US20160354826A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030160053A1 (en) * | 2002-02-26 | 2003-08-28 | Kim Myung Suk | Pot with multi-layered bottom and manufacturing process thereof |
US6715631B2 (en) * | 2002-02-26 | 2004-04-06 | Myung Suk Kim | Pot with multi-layered bottom and manufacturing process thereof |
US20040226456A1 (en) * | 2003-05-16 | 2004-11-18 | Myung-Suk Kim | Triple bottom structure of cooking utensil and method for manufacturing the same |
US20110089153A1 (en) * | 2009-10-15 | 2011-04-21 | Yao Tsung Kao | combination structure of bottom of pan (kettle) body and heating apparatus |
US20160169600A1 (en) * | 2013-07-05 | 2016-06-16 | Uacj Corporation | Aluminum alloy brazing sheet and method for producing same |
US20170042370A1 (en) * | 2015-08-14 | 2017-02-16 | Tianyu Import & Export Trading Ltd. | Automatic Constant Temperature Cookware Utensil and Combined Structure with Eletro-magnetic Heating Device |
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