WO2006012780A1

WO2006012780A1 - An internal bladder for an electric cooker made of multi-layer metal composite sheets

Info

Publication number: WO2006012780A1
Application number: PCT/CN2004/000952
Authority: WO
Inventors: Zhentao Wu
Original assignee: Foshan Nanhai Koonex Stainless Steel Products Co., Ltd.
Priority date: 2004-08-04
Filing date: 2004-08-16
Publication date: 2006-02-09
Also published as: CN2728360Y

Abstract

The invention relates to an electric cooker, and more particularly to an internal bladder for the electric cooker made of multi-layer metal composite sheets, wherein the peristome, perimeter, bottom of the internal bladder are formed integrally by pressing, they are all the metal composite sheets with laminates, which are formed by overlapping the metal sheet of which the junction plane is coarsened and the metal sheet of which the junction plane is coarsened, then heating and rolling the overlapped metal sheet. The metal composite sheet used in the invention is heated normally and processed by a rolling device. Due to the good deep-stretching performance of the metal composite sheet, and high bonding-strength after being heated, the internal bladder formed by pressing transfers heat uniformly, can’t burn the bottom hereof, and wears well.

Description

Rice cooker liner made of multi-layer composite metal plate

The utility model relates to a rice cooker of a cookware type, in particular to a rice cooker liner made of a multi-layer composite metal plate. Background technique

The cookware products of the prior art, especially the rice cookers, are made of a single layer of aluminum or stainless steel, resulting in uneven heating, low heating efficiency, improved aluminum or stainless steel inner liner, Applying a layer of anti-adhesive glue improves the disadvantages of uneven heating and easy to focus, but its pre-treatment process is complicated, the cost is high, and the durability is not enough. There is also a composite inner bottom (commonly known as the bottom of the pot), that is, adding a piece of stainless steel to the bottom of the aluminum bile. Although the performance is improved, it is impossible to avoid the occurrence of coke in the bottom of the gallbladder and the lower part, and the processing technology is complicated. Quality is not guaranteed and costs are high. Summary of the invention

The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a rice cooker liner made of a multi-layer composite metal plate with simple processing, low cost, low energy consumption and uniform heat conduction.

The purpose of the utility model is achieved as follows:

The utility model relates to a rice cooker liner made of a multi-layer composite metal plate, wherein the inner liner edge 1, the inner liner 2 and the inner liner 3 are integrally formed by stamping, and all of the three are combined and surface-finished. A composite metal plate having a superimposed layer formed by laminating a metal plate and a metal plate bonded to the surface of the bonded surface by heat.

- The outermost two layers of the composite metal sheet having the superposed layer may be respectively a stainless steel plate or an aluminum plate, or may be other metal plates.

- The metal plate refers to a stainless steel plate, an aluminum plate, a copper plate, an iron plate, a stainless iron plate or an alloy plate.

—— The superposed layer may be a two-layer type of single-piece stainless steel plate and aluminum plate, a three-layer type in which two pieces of copper plate or aluminum plate are sandwiched between two pieces of stainless steel plates, and two pieces of two pieces of metal plates sandwiched by two pieces of stainless steel plates, Two pieces of stainless steel clip three-piece metal plate.

- The cross-section of the inner liner 2 and the inner lip 1 and the inner bottom 3 may be correspondingly circular, elliptical, square or regular polygons.

The utility model uses the composite metal plate treated by the standard heat treatment and rolling equipment, has low investment, low energy consumption and quick effect. Since the composite sheet has good deep tensile properties and has high bonding strength after hot pressing, it is formed by stamping. The bile has even heat conduction, is not scorched, durable, and is well received by users. DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-sectional view of a double-layered structural liner of the present invention.

Figure 2 is a cross-sectional view of the three-layer structure liner of the present invention.

Figure 3 is a cross-sectional view of the four-layer structure liner of the present invention.

Figure 4 is a cross-sectional view of the five-layer structure liner of the present invention.

In Fig. 1 and Fig. 2, 1 is the inner edge of the liner, 2 is the inner casing, 3 is the inner bottom, 4 is the metal plate, 5 is the stainless steel plate, 6 is the metal aluminum plate, and 7 is the copper plate. detailed description

1. Take the double layer type as an example: take a stainless steel plate of 0.1~3mm and a metal aluminum plate of 0.1~3mm. After alkali and pickling, the bonding surface of the two plates is ground into a rough surface, and one end is welded and pressed. It is pushed horizontally into a box-type electric furnace for heating, and then placed in a rolling machine for roll forming. After being flattened, it is made of aluminum and stainless steel sheets, which are reserved for cutting, and punched with a suitable die by a suitable die; 3⁄4 The inner pot of the rice cooker has internal and external surfaces as stainless steel or aluminum plate as appropriate.

2. Take the three-layer type as an example: Take 0.1~3mm stainless steel plate, 0.1~3mm metal copper plate and 0.1~3mm metal aluminum plate. After alkali and pickling, the combined surface of the three plates will be ground into a rough surface. The brushed copper plate is sandwiched between the stainless steel plate and the aluminum plate. After one end touches the welding edge, it is pushed horizontally into the box type electric heating furnace, and then placed in a rolling machine to be rolled and formed. The laminated composite metal plate is reserved for cutting, and is punched into a rice cooker liner by a suitable punching machine with a required die, and the inner and outer surfaces are determined to be stainless steel plates or aluminum plates as the case may be.

Claims

1. A rice cooker liner made of a multi-layer composite metal sheet, characterized in that the inner liner edge (1), the inner liner (2) and the inner liner (3) are integrally formed by stamping, three The composite metal plate with superimposed layer is formed by superimposing and bonding the metal plate combined with the surface of the surface and the brushed metal plate.

2. The rice cooker liner made of a multi-layer composite metal sheet according to claim 1, wherein the outermost two layers of the superposed composite metal sheet are respectively stainless steel sheets or aluminum sheets, It can be other metal plates.

3. The rice cooker liner made of multi-layer composite metal plate according to claim 1, wherein the metal plate refers to a stainless steel plate, an aluminum plate, a copper plate, an iron plate, a stainless iron plate or an alloy plate. .

4. The rice cooker liner made of a multi-layer composite metal plate according to claim 1, wherein the superposed layer is a double-layer type of two-piece stainless steel plate and aluminum plate, and two stainless steel plates. A three-layer type with one copper plate or aluminum plate, two stainless steel plates with two metal plates, and two stainless steel plates with three metal plates.

5. The rice cooker liner made of multi-layer composite metal sheet according to claim 1, characterized in that the cross section of the inner liner (2) and the inner edge (1) and the inner liner The bottom (3) can be a corresponding circular, elliptical, square or regular polygon.