WO2007085134A1

WO2007085134A1 - General cooker for various stoves with three-layer composite plate and the manufacture method

Info

Publication number: WO2007085134A1
Application number: PCT/CN2006/000314
Authority: WO
Inventors: Zhiming Hu
Original assignee: Zhiming Hu
Priority date: 2006-01-27
Filing date: 2006-03-03
Publication date: 2007-08-02
Also published as: CN100496359C; CN101006900A

Abstract

A cooker with a three-layer composite plate and the manufacture method are disclosed. The cooker includes the cooker entity composed of a cooker body and a cooker bottom. The cooker body of the cooker entity is a three-layer composite metal plate composed of an intermediate layer made of the stainless steel 409 or 430 and an inner and an outer layer made of the aluminum alloy. The cooker bottom of the cooker entity is a two-layer composite metal plate composed of an inner layer made of the aluminum alloy and an bottom layer made of the stainless steel 409 or 430. The manufacture method includes the following steps. First, selecting the three-layer composite metal plate composed of the intermediate layer made of the stainless steel 409 or 430 and the inner and outer layer made of the aluminum alloy, stretching the composite metal plate and forming the cooker entity including the cooker body and the cooker bottom. Then, the inner and outer surfaces are under some surface treatments, such as oxidizing, spray painting, and so on. Finally, the outer-layer aluminum alloy on the bottom surface of the formed cooker is removed and dressed to expose the stainless steel layer.

Description

Three-layer composite board, various cookware universal cookware and manufacturing method thereof

The present invention relates to a cooker, and more particularly to a cooker commonly used in a three-layer composite plate made of a three-layer composite plate, and a manufacturing method thereof.

Background technique

At present, in addition to cookware made of magnetically conductive materials, the cookware on the domestic and foreign markets, in order to enable it to be used on induction cookers and other stoves, is a composite magnetic metal sheet at the bottom. Although such cookware can be used in induction cookers and other stoves, the double-bottom metal sheets and cookware are two kinds of metals after all, and their thermal expansion and contraction coefficients are different, and the double-bottom metal sheets and cookware are used on various stoves. The composite life and firmness are very limited. There are many detachment and delamination in use. The use of cookware brings a lot of changes, and even the use function of the cookware is lost. If this problem can be changed, the detachment and stratification will be completely eliminated. Elimination, which makes the cookware truly applicable to a variety of stoves and uses reliable and permanent functions, has become an important topic of current research.

The Chinese patent "Guangzhou Lingfeng Kitchenware Co., Ltd." with application number 00240125. 8 discloses a stainless steel pot with a composite bottom. The utility model comprises a pot body and a composite pot bottom, characterized in that the composite pot bottom comprises a plurality of layers of stainless steel plates, aluminum plates and stainless iron plates. The utility model uses a composite pot bottom structure composed of a stainless steel plate, an aluminum plate and a stainless iron plate, so that it has the functions of heat-hooking, heating and heat-dissipating area, not easy to burn food and sticking the pan, and ensuring cooking thereof. The effect is good, and can be directly used on the induction cooker, and the utility model has the advantages of simple structure, easy production and production, long service life and strong practicability.

The above-mentioned stainless steel pot having a composite pan bottom can be used on an electromagnetic cooker, but the stainless steel plate layer, the aluminum plate layer and the stainless iron plate layer at the bottom of the composite pan are welded together by a brazing machine. The composite structure is not a composite metal composed of press-bonding, so the use is unreliable, and the composite layer is often detached when fired at a high temperature.

The Chinese patent "Emerging Eurasia Stainless Steel Products Co., Ltd." with the application number of 200510035049. 1 discloses a stainless steel pot of a brazed composite pot bottom and a manufacturing method thereof, and the composite pot bottom comprises a layered layer and a composite layer with the bottom of the pot. Aluminum plate, a stainless steel plate and a copper plate. Firstly, the copper plate is brazed to the stainless steel plate as a transition layer, and then the aluminum plate is laminated and heated together with the bottom of the pan. The copper plate, a stainless steel, an aluminum and a composite plate are also flanged to the pot body, and the bottom of the pan is fully wrapped. The composite pan has good heat conduction, high temperature resistance, strong bonding force, good anti-dry burning effect and low cost, and is suitable for compound strengthening and anti-dry burning treatment of the stainless steel bottom. Although the above-mentioned brazed composite pan bottom stainless steel pot has strengthened its manufacturing method and improved resistance to kilo-burning, its bonding strength is still not as high as that of the laminated metal composite plate, and there is still a problem of delamination and bottoming. And because the bottom outer layer is copper, it cannot be used on induction cookers.

The Chinese patent "Northwest Nonferrous Metal Research Institute" with application number 93102193. 6 discloses a bimetallic composite material pot including aluminum-iron, aluminum-stainless steel, copper-iron, copper-stainless steel bimetal composite pot. It is made of explosive welding composite and rolling technology to make composite board, and then it can be made into a pot by stamping and spinning. The bimetal composite material pot has the advantages of light weight and durability, time saving and energy saving, and avoids the disadvantages of the iron pan being vulnerable to rust and bulkiness, and has the advantages of non-stickiness and novel structure, which is beneficial to the health of the human body and mind. A new cookware that meets the needs of people's daily lives.

The above-mentioned bimetallic composite material pot is made of iron or stainless steel inside, and is made of copper or aluminum plate on the outside, and can only be used on a common stove and cannot be used on an induction cooker. There are also problems of stratification and bottoming out. Summary of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a three-layer composite board universal cooker universal cooker and a manufacturing method thereof, which are generally used in various stoves, completely eliminating the solidity between the composite plate layers. Shedding and delamination caused by poor sex.

In order to solve the above technical problems, the basic idea of the technical solution of the present invention is: a three-layer composite board, a universal cooker of various stoves, comprising a cooker body composed of a body of the cookware and a bottom of the cookware connected thereto, which The utility model is characterized in that: the cooker body of the cookware body is a three-layer composite metal plate whose inner layer is 409 or 430 stainless steel, the inner and outer layers are aluminum alloy, and the bottom of the cookware body is 409 or 430 stainless steel at the bottom. The layer is a two-layer composite metal plate of aluminum alloy.

A method for manufacturing a three-layer composite panel universal cooker, characterized in that: the method for manufacturing a three-layer composite panel universal cooker comprises the following steps:

First, the first layer is made of 409 or 430 stainless steel, and the inner and outer layers are aluminum alloy three-layer composite metal plates. That is, the three-layer composite plate is arranged in layers, aluminum alloy outer layer + intermediate stainless steel layer + aluminum alloy. The inner layer, the specific level is: 3004 layer + 409 or 430 layer + 3003 layer, or, 3003 layer + 409 or 430 layer + 3003 layer, or, 3004 layer + 409 or 430 layer + 3004 layer,

among them,

The 409 layer is OCRllTi stainless steel. The 430 layer is the ICrI7 stainless steel.

The 3004 layer is the grade of an aluminum alloy plate.

The 3003 layer is the grade of another aluminum alloy plate.

Then, the above three-layer composite metal sheet is stretch-formed into a cookware body including a cookware body and a cookware bottom;

Second, surface treatment of the inner and outer surfaces of the cookware body, such as oxidation, spraying, etc.;

Thirdly, the bottom aluminum alloy metal layer of the bottom surface of the cookware body of the cookware body formed by the three-layer composite metal plate is removed by machining and trimmed to expose the plane of the 409 or 430 stainless steel layer, so that the bottom of the cookware is formed. The bottom layer is a 409 or 430 stainless steel layer, and the inner layer is still a two-layer composite metal plate of an aluminum alloy.

After adopting the above scheme, the present invention has the following beneficial effects as compared with the prior art:

Since the three-layer composite board of the invention has a plurality of common cookers, a three-layer composite metal plate is used to form a whole cookware body, and the composite bond of the composite board is very firm, which is obviously superior to ordinary composite materials, especially The invention is characterized in that the bottom layer is detached by the brazing method, and the delamination phenomenon is overcome. The present invention overcomes this disadvantage, completely eliminates the problem of delamination and delamination of the composite film, and the strength of the cookware is also greatly improved. Moreover, since the invention is formed into a whole cooker body, the aluminum alloy in the outer layer is removed by machining at the bottom of the cookware, and the 409 or 430 stainless steel with good magnetic permeability is exposed, and the aluminum alloy of the inner layer is still original. The composite structure, that is, a two-layer composite metal in which stainless steel having a bottom of 209 or 430 and an inner layer of aluminum alloy is formed. The 409 or 430 stainless steel on the bottom of the cookware is in direct contact with the induction cooker. Because of its good magnetic permeability, it is ideal for induction cookers and can be used in other common furnaces. Therefore, the three-layer composite board of the present invention has a plurality of common cookers and a manufacturing method thereof, and is a cookware which can be universally used in various stoves.

The specific embodiments of the present invention are described in further detail below with reference to the accompanying drawings. DRAWINGS

1 is a schematic view showing a molding structure of a general cooker of various stoves of the three-layer composite board of the present invention;

Fig. 2 is a schematic view showing the application structure of the three-layer composite board of the present invention in which a plurality of common cookwares are molded and the bottom layer is removed. detailed description

As shown in FIG. 1 and FIG. 2, a three-layer composite board of the present invention has a structure of a common cooker of various stoves, including The cookware body formed by the body 1 and the bottom 2 of the cookware connected thereto. The cooker body 1 of the cookware body is a three-layer composite metal plate whose inner layer is 409 or 430 stainless steel, and the inner and outer layers are aluminum alloy, and the bottom 2 of the cookware body is 409 or 430 stainless steel, and the inner layer is It is a two-layer composite metal plate of aluminum alloy.

The method for manufacturing the above-mentioned three-layer composite board various cookware universal cookware comprises the following steps:

First, firstly, a three-layer composite metal plate with an intermediate layer of 409 or 430 stainless steel and an outer layer of aluminum alloy is selected, that is, the three-layer composite metal plate is arranged in a layer of aluminum alloy outer layer 5+ intermediate stainless steel layer 3+ aluminum. The inner layer of the alloy 4, the specific level is -

3004 layers +409 or 430 layers +3003 layers, or,

3003 layers +409 or 430 layers +3003 layers, or,

3004 layers +409 or 430 layers +3004 layers, where

Layer 409 is OCrllTi stainless steel.

The 430 layer is the ICrl7 stainless steel.

The 3004 layer is the grade of an aluminum alloy plate.

3003 is another grade of aluminum alloy plate,

Then, any of the three-layer composite metal sheets of the above three-layer composite metal sheets is stretch-formed into a cookware body, and the cookware body includes a cooker body 1 and a cookware bottom 2 integrally connected thereto.

Second, the inner and outer surfaces of the cookware body are subjected to surface treatment such as oxidation, spraying, and the like.

Thirdly, the bottom 2 of the cookware body of the cookware body formed by the three-layer composite metal plate is treated, and the bottom aluminum alloy metal layer 5 of the bottom surface of the cookware bottom 2 is removed by machining and trimmed to expose 409 or 430 stainless steel. The plane of layer 3. Thus, the bottom 2 of the cookware is formed of an intermediate layer of the original three-layer composite metal plate to form a two-layer composite metal plate having a bottom layer of 409 or 430 stainless steel layer 3 and an inner layer of aluminum alloy 4. The 409 or 430 stainless steel layer 3 of the bottom layer of the two-layer composite metal sheet can be directly contacted with an induction cooker or other stoves, and is extremely suitable for an induction cooker.

In summary, the three-layer composite board of the present invention has various cookware universal cookware and a manufacturing method thereof, and solves the problem of non-durable detachment delamination in the prior art, since the bottom of the cookware is 409 or 430 stainless steel with good magnetic permeability, and The part constitutes a whole cooker body, and the strength of the cookware is greatly improved, and the problem of detachment and delamination of the double film is completely eliminated. 409 or 430 stainless steel is a good magnetic conductive material. It is not only suitable for induction cookers, but also suitable for other stoves. It is a cookware that can be used in a variety of stoves.

Claims

Claim

A three-layer composite board universal cooker for various stoves, comprising a cooker body composed of a body portion (1) and a bottom portion (2) of the cookware connected thereto, characterized in that: the cooker of the cooker body The body (1) is a three-layer composite metal plate whose middle layer is 409 or 430 stainless steel (3), the inner and outer layers are aluminum alloys (4), (5), and the bottom of the cookware (2) of the cookware body is the bottom layer It is a two-layer composite metal plate of 409 or 430 stainless steel (3) and an inner layer of aluminum alloy (4).

A method for producing a three-layer composite panel universal cooker according to claim 1, wherein: the method for fabricating a three-layer composite panel of various cookware angle cookers comprises the following steps:

First, the first choice is 409 or 430 stainless steel, the inner and outer layers are aluminum alloy three-layer composite metal plate, SP, the three-layer composite plate is arranged in layers, aluminum alloy outer layer (5) + intermediate stainless steel layer (3) + aluminum alloy inner layer (4), the specific level is: 3004 layers + 409 or 430 layers + 3003 layers, or, 3003 layers + 409 or 430 layers + 3003 layers, or, 3004 layers + 409 or 430 layers +3004 floors,

among them,

Layer 409 is OCrllTi stainless steel.

The 430 layer is the ICrI7 stainless steel.

The 3004 layer is the grade of an aluminum alloy plate.

The 3003 layer is the grade of another aluminum alloy plate.

Then, the above three-layer composite metal sheet is stretch-formed into a cooker body including a cookware body (1) and a cooker bottom (2);

Thirdly, the bottom aluminum alloy metal layer (5) of the bottom of the cookware body (2) of the cookware body formed by the three-layer composite metal plate is removed by machining and trimmed to expose the 409 or 430 stainless steel layer (3). In this way, the bottom of the cookware (2) forms a two-layer composite metal plate with a bottom layer of 409 or 430 stainless steel (3) and an inner layer of aluminum alloy (4).