JPS61260586A - High output composite material for electromagnetic cooker - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Industrial application field 1 The present invention relates to high-power composite materials for induction cookers.

[Prior art 1 Recently, the use of induction cookers has been increasing.

Nowadays, iron is commonly used as the material for the utensils used in electromagnetic cookers, but this iron material is subject to a load of 100% of the maximum output of the electromagnetic cooker, but it is prone to rusting. The problem is that it is heavy.

In view of the rusting of utensils made of iron materials, some utensils are made of ferritic stainless steel or a composite material (clad material) of ferritic stainless steel and aluminum or aluminum alloy. There is a problem in that the load is only about 80% of the maximum output.

[Problem to be Solved by the Invention 1] As explained above, the present invention has been made to solve various problems of the materials for electromagnetic cookers that have been conventionally used. The maximum output of the cooker is 10
．． As a result of research on composite materials that can be used at 0%, we found that they basically use iron, which is a ferromagnetic material, as a base material, and in order to generate sufficient electromagnetic induction heating in this iron, electric current is applied to the outside of the iron. By using austenitic stainless steel with deep penetration depth and excellent rust prevention, we developed a composite material that can handle 100% of the maximum output of an electromagnetic cooker.

[Means for Solving the Problems 1] The high-output composite material for an electromagnetic cooker according to the present invention includes (1) the first outermost layer made of stainless steel, the second layer made of iron, the third layer made of stainless steel, and the outermost layer made of stainless steel. The first invention is a high-power composite material for an electromagnetic cooker, characterized in that the 4N of the inner layer is made of aluminum or an aluminum alloy, (2) the first outermost layer is made of stainless steel, the second layer is made of iron, and the second layer is made of stainless steel; The second invention is a high-output composite material for an electromagnetic cooker, characterized in that the third layer is made of stainless steel, the fourth layer is made of aluminum or aluminum alloy, and the fifth innermost layer is made of stainless steel. It is something.

The high-output composite material for an electromagnetic cooker according to the present invention will be described in detail below.

First, the materials used in the high-output composite material for an electromagnetic cooker according to the present invention will be explained.

The first outermost layer of stainless steel is preferably an austenitic stainless steel, which is important to ensure good surface corrosion resistance due to scratches during use and to maximize electromagnetic induction heating relative to iron. and the thickness is 0.01~0.4m
Let it be m.

The second layer of iron is important to maximize the use of electromagnetic induction heating, and the thickness is about 0.1 to 1.0 mm to achieve this effect and to improve formability and end face corrosion resistance. shall be.

The third layer of stainless steel uses austenitic or 7-elite stainless steel to ensure bonding strength between iron and aluminum or aluminum alloy, and to achieve this effect, end face corrosion resistance, thermal conductivity and In order to improve moldability, the thickness is set to 0.01 to 0.5 cm.

The fourth layer of aluminum or aluminum alloy (in the first invention of the high-power composite material for an electromagnetic cooker according to the present invention, it is the innermost layer) is used to improve good thermal conductivity and end face corrosion resistance. In order to achieve this effect and improve moldability, the thickness is 0.5 to 3.0.
Ill111.

The fifth layer of stainless steel is made of austenitic or 7-elite stainless steel to prevent scratches during use, and in order to achieve this effect, thermal conductivity, and formability, the thickness should be 0.01~ 1.0III11.

A method for manufacturing a high-output composite material for an electromagnetic cooker according to the present invention will be explained.

An aluminum plate with the thickness explained above is cleaned with an alkaline solution, and stainless steel plates with the thickness explained above are laminated on both sides of the aluminum plate, and the iron plate and stainless steel plate are each degreased with an organic solvent and then stacked. , processing rate 5-40%,
The desirable value is 20 to 30 in terms of bonding strength and moldability.
The composite material is produced by rolling or pressing with a processing rate of %.

The composite material thus manufactured is subjected to drawing processing or the like to form a device suitable for an electromagnetic cooker.

FIGS. 2 and 3 are cross-sectional views of a device manufactured by drawing using the composite material for an electromagnetic cooker according to the present invention. In Figure 2, the first outermost layer is 5US3040. O5
l11m, second layer is iron 0.4IOI111 third layer is SO
33040.05mm, the fourth layer of the innermost layer is made of aluminum 11001.5mm, and a fluorocarbon resin coating is further provided on top of that, and as shown in Figure 3, the first layer of the outermost layer is made of SUS 3040.05mm, the second The layer is about 0.4 iron,
The third layer is SUS 3040,05+u+.

The fourth layer is aluminum 11001.5ma+, and the innermost fifth layer is SUS 3040. This is a composite material structure with hm.

Next, Fig. 1 shows the invention @1 (see 4, Fig. 2) and the second invention (see Fig. 2) of the high-output composite material for an electromagnetic cooker according to the present invention.
5, see Figure 3), iron utensils (1), ferritic stainless steel utensils (2), ferritic stainless steel and 7
・The results of a test using an electromagnetic cooker with a rated output of 1oov and 1300W are shown for the aluminum composite material utensil (3). 100% output was obtained for both inventions.

Iron utensils also have 100% output, but as explained above, they have a problem of poor corrosion resistance.Example 1 An example of a high output composite material for an electromagnetic cooker according to the present invention will be described.

Examples Composite materials shown in Table 1 were manufactured, and the output, moldability, surface corrosion resistance, end face corrosion resistance, thermal conductivity, and bonding strength were evaluated. The results are shown in Table 1.

[Effects of the Invention 1] As explained above, the high-output composite material for an electromagnetic cooker according to the present invention has the above-mentioned configuration, so it has high output as a material for an induction cooker, and has good moldability and corrosion resistance. , it has the effect of being extremely excellent in thermal conductivity and bonding strength.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the output of each material for an electromagnetic cooker, and FIGS. 2 and 3 are schematic cross-sectional views of the high output material for an electromagnetic cooker according to the present invention. 1 figure

Claims (2)

[Claims] (1) A high-output composite for an electromagnetic cooker characterized in that the first outermost layer is made of stainless steel, the second layer is made of iron, the third layer is made of stainless steel, and the fourth innermost layer is made of aluminum or aluminum alloy. material. (2) The first outermost layer is made of stainless steel, the second layer is made of iron, the third layer is made of stainless steel, the fourth layer is made of aluminum or an aluminum alloy, and the fifth innermost layer is made of stainless steel. A high-output composite material for induction cookers.