Combined pot base and manufacturing method

Abstract

A combined pot base comprises an aluminum pot base and a magnetic conductive heating plate, wherein a plurality of downward lug bosses are preformed on the bottom of the pot base; turning holes which are matched with the lug bosses are formed in the upper surface of the magnetic conductive heating plate in a punching mode; the magnetic conductive heating plate is attached to the bottom of the pot base so that the turning holes in the upper surface of the magnetic conductive heating plate sleeve the lug bosses of the pot base in a fastened mode; and through cold extrusion forming, the lug bosses deform and are riveted with the turning holes, so that the magnetic conductive heating plate is fixed onto the bottom of an aluminum pot in a combination mode. The combined pot base is characterized in that a groove is formed in the periphery of each lug boss, a turning edge of each turning hole can be inserted and positioned in the corresponding groove, an end surface of each lug boss is higher than the plane of the pot base, a bearing platform of which the shape and the thickness are matched with those of the magnetic conductive heating plate is preformed on the bottom of the pot base, and after combination, the lower surface of the magnetic conductive heating plate is basically parallel and level to the pot base. The invention also discloses a cold extrusion manufacturing method. Machining is facilitated, the manufacturing cost is low, and production efficiency is improved greatly.

Description

technical field [0001] The invention relates to a cooker, in particular to a composite pot bottom capable of conducting heat through electromagnetic induction and a manufacturing method thereof. Background technique [0002] Traditional pots such as pressure cookers, frying pans, frying pans, non-stick pans and other pots are mostly made of aluminum materials. Since aluminum is a non-magnetic material, traditional aluminum pots are not suitable for use on induction cookers. However, with the continuous development and progress of science and technology, new heating cookers such as electromagnetic cookers have widely entered ordinary households, and the inability of aluminum cookers to be used on electromagnetic cookers will inevitably limit their competitiveness in the market. Scientific and technological personnel have developed a pot with a composite bottom. One of them is to compound a layer of stainless steel bottom on the original aluminum bottom and weld the bottom to ...

AI Technical Summary

Problems solved by technology

This kind of composite pot bottom is flat and beautiful, but the extrusion molding of the magnetic conduction heating plate and the bottom of the pot is hot extrusion, which needs to be heated, and cold extrusion cannot be used, so the manufacturing is more troublesome and the cost is relatively high.

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