Magnetic permeating pot with flower-shaped hot-forged bottom covering piece and production method thereof

Abstract

A magnetic permeating pot with a flower-shaped hot-forged bottom covering piece and a production method thereof belong to the technical field of aluminum pots. The magnetic permeating pot structurally comprises an aluminum alloy pot body and a steel bottom covering piece, the steel bottom covering piece has a flower-shaped structure and is embedded into the bottom surface of the aluminum alloy pot body and keeps flat with the bottom surface of the aluminum alloy pot body, and expansion buffer strips are formed on portions, extending out of the steel bottom covering piece, of the aluminum alloy pot body. The production method includes embedding the steel bottom covering piece into the bottom surface of the aluminum alloy pot body by hot forging. Compared with the prior art, the magnetic permeating pot with the flower-shaped hot-forged bottom covering piece has the advantages that firstly, relative difference of variation of expansion caused by heat and contraction caused by cold between the aluminum alloy pot body and the bottom covering piece can be reduced greatly; secondly, the defect of middle arch of the integral stainless steel bottom covering piece can be eliminated completely; thirdly, noise caused by magnetic lag can be lowered evidently; fourthly, skin effect of induction current can be improved greatly; and fifthly, the flower-shaped hot-forged bottom covering piece is firmer, flatter, more energy-saving and more effective as compared with the bottom covering piece in the prior art.

Description

technical field [0001] The invention belongs to the technical field of aluminum pots, and in particular relates to an electromagnetic pot with a flower-shaped hot forging and pressing bottom sheet and a production method thereof. Background technique [0002] As a household tableware, the induction cooker is widely welcomed because of its convenience, but since there are only three elements with magnetic permeability known in nature, iron, cobalt and nickel, obviously, cobalt and nickel are relatively rare elements on the earth Not to mention the high price, and it may have adverse effects on the human body, only iron is a large, cheap and harmless material, but the cast iron pot that has been used for thousands of years has a disadvantage, that is, it is easy to rust; alloy steel such as Because stainless steel contains a lot of chromium elements, it has been proved that it is harmful to health. Moreover, stainless steel has high strength and hardness, and it is difficult t...

AI Technical Summary

Problems solved by technology

[0002] As a household tableware, the induction cooker is widely welcomed because of its convenience, but since there are only three elements with magnetic permeability known in nature, iron, cobalt and nickel, obviously, cobalt and nickel are relatively rare elements on the earth Not to mention the high price, and it may have adverse effects on the human body, only iron is a large, cheap and harmless material, but the cast iron pot that has been used for thousands of years has a disadvantage, that is, it is easy to rust; alloy steel such as Because stainless steel contains a lot of chromium elements, it has been proved that it is harmful to health. Moreover, stainless steel has high strength and hardness, and it is difficult to draw, deform and polish. Therefore, aluminum alloys with large quantities, low prices and easy processing are widely used in the pot making industry. However, the general aluminum alloy is not magnetically conductive and cannot be heated by an induction cooker, so a non-austenitic stainless steel aluminum alloy pan with a negative film was invented.

The earliest stainless-steel-covered aluminum alloy pots used a welding structure. This welding process was extremely difficult and the fastness was extremely poor. Later, someone invented a riveting connection structure instead. Although the riveting connection is inferior to the original welding process However, there are still many deficiencies. For example, the Chinese Patent Publication No. ZL200510050623.0, an invention patent titled "a composite pot bottom of an aluminum pot", discloses a composite pot bottom, which is placed on the bottom of an aluminum pot bottom. The upper steel plate is compositely fixed, and a plurality of raised parts are preformed on the bottom of the pot bottom, and a plurality of turning holes matching the raised parts are punched out on the surface of the steel plate, and the steel plate is attached to the aluminum pot On the bottom of the bottom, make the turning hole card of the steel plate fit on the raised part of the bottom of the pot, and at the same time insert the turning edge around the turning hole into the bottom of the pot bottom, and deform the raised part to cover the turning bott

Images