Composite boiler and method of manufacturing the same

Abstract

The invention relates to a combined pot, which comprises a pot body made of non-magnetic conducive metal substrate and a magnetic conducive heating metal plate which is combined on the exterior bottom surface of the pot body through cold extrusion. A plurality of flanged holes are punched in the magnetic conducive heating metal plate; the magnetic conducive heating metal plate is attached to the exterior bottom surface of the pot body through cold extrusion to extrude the substrate of the pot body in the flanged holes in the magnetic conducive heating metal plate after plastic deformation; at the same time, the flanging of the flanged holes is inserted into the exterior bottom surface of the pot body to fixedly combine the magnetic conducive heating metal plate in the exterior bottom surface of the pot body. The invention is characterized in that imprint patterns matched with the shape of the flanging and the arrangement of the flanged holes of the magnetic conducive heating metal plate are formed through mold punching in the exterior bottom surface of the pot body. The imprint patterns of the combined pot have good stability, repeatability and industrial properties, and the invention has good anti-splashing effect.

Description

technical field [0001] The invention relates to the technical field of tableware pots, in particular to a composite pot and a production method thereof. Background technique [0002] Because aluminum is a non-magnetic material, traditional aluminum pots are not suitable for use on induction cookers. A composite pot has appeared in the market in response to the above-mentioned current situation. Its structure is to compound a layer of stainless steel bottom on the original aluminum pot bottom. The bottom surface and the bottom of the pot are welded, and the welding process requires high technology, and welding requires special convex equipment, so the cost of welding is also high, and it is easy to affect the smoothness of the bottom surface of the pot. [0003] For example, the Chinese utility model patent "Composite Pan Bottom of Aluminum Pan" with the patent No. ZL02217063.4 (announcement No. CN2544654Y) discloses a structure in which a steel plate is compounded on the bot...

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Problems solved by technology

[0005] After analyzing the patent, we will find that the embossed lines formed in the patent on the inner bottom plane of the container are formed by extruding a strong magnetic metal plate and through the plastic deformation of the container base material. The texture formed on the part is not clear and obvious, so the texture of the boiling steam bubbles in the container is not obvious, that is, the embossing appearance style is not obvious, the industrial property is poor, the embossing is unstable, and the manual control is poor, that is, after each stamping. Some of the embossed lines will be clearer, and some may not be so clear, that is, in a batch of goods, the embossed lines are not completely consistent, and the boiling point cannot be well fixed in a certain area, so its anti-splash The effect can be further improved

In addition, if the above-mentioned patent does not design the opening into a sharp shape, it will be difficult to form a clearer embossed pattern on the inner bottom plane of the container. However, the opening is made into a sharp shape, and generally there are many openings. , so the process is complicated and the processing cost is high

[0006] The two patents mentioned above are directly backlogging the steel plate with the turning hole to the bottom of the aluminum pot by cold extrusion, so only the side of the turning hole is inserted into the bottom of the pot, and the friction between the side of the turning hole and the bottom of the pot is The force is combined at the bottom of the pot, so the combination of the steel plate and the bottom of the pot is not very firm.

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