Composite metal material, preparation method thereof and metal material product

A technology of composite metal materials and metal materials, applied in the direction of metal rolling, metal layered products, chemical instruments and methods, etc., can solve the problems of separation of aluminum layer and steel layer, low yield rate of kitchen utensils, etc., to avoid separation, Guarantee the bonding strength of the interface and slow down the effect of generation

Active Publication Date: 2017-05-17
YINBANG CLAD MATERIAL
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  • Claims
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Problems solved by technology

[0004] The first purpose of the present invention is to provide a composite metal material to solve the problem that the current existing materials are prone to form coarse and continuous aluminum-iron intermetallic brittle compounds when deep drawing at a temperature greater than 460°C, resulting in the separation of the aluminum layer from the steel layer. Technical problems with low product yield
[0005] The second object of the present invention is to provide a method for preparing a composite metal material, so as to solve the problem that the current existing method is very easy to produce thick and continuous aluminum-iron in deep drawing of 3003 aluminum alloy and 430 stainless iron composite materials under the condition of greater than 460 ° C. The brittle compound between metals causes the separation of the aluminum layer and the steel layer, and the technical problem of low yield rate of kitchenware products

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  • Composite metal material, preparation method thereof and metal material product

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Effect test

Embodiment 1

[0037] The composite metal material in this embodiment includes a first alloy layer 1 , a second alloy layer 2 and a third alloy layer 3 located between the first alloy layer 1 and the second alloy layer 2 .

[0038] The first alloy layer is 3003 aluminum alloy, and the 3003 aluminum alloy includes the following materials in 100 parts by mass: 0.13 parts of copper (Cu), 1.2 parts of manganese (Mn), 0.6 parts of iron (Fe), and 0.5 parts of silicon (Si). parts, 0.08 parts of zinc (Zn), and the rest are aluminum and unavoidable impurity elements.

[0039] The second alloy layer is 430 stainless iron, which includes the following materials in 100 parts by mass: 16.8 parts of chromium (Cr), 0.10 part of carbon (C), 0.7 part of silicon (Si), manganese (Mn) 1 part, phosphorus (P) 0.03 part, sulfur (S) 0.02 part, and the rest are iron and unavoidable impurity elements.

[0040] The third alloy layer is 4A60 aluminum alloy, and the 4A60 aluminum alloy includes the following materials ...

Embodiment 2

[0048] The composite metal material in this embodiment includes a first alloy layer, a second alloy layer and a third alloy layer located between the first alloy layer and the second alloy layer, and the composition of the corresponding alloy layer is the same as that in Embodiment 1.

[0049] The preparation method of composite metal material comprises the following steps:

[0050] 3003 aluminum alloy and 4A60 aluminum alloy are hot-rolled and compounded first, and the cladding ratio of 4A60 is 10%;

[0051] When rolling and compounding with 430 stainless iron, the surface of the stainless iron plate that has been washed by acid and alkali is polished with a roller brush and then rolled and compounded with the 4A60 aluminum alloy surface of the 3003 aluminum alloy / 4A60 aluminum alloy composite plate, and the rolling temperature is 200 ℃, rolling speed 4m / min, reduction rate 25%;

[0052] Then the finished product is annealed, the annealing system is 320°C, and the temperatur...

Embodiment 3

[0055] The composite metal material in this embodiment includes a first alloy layer, a second alloy layer and a third alloy layer located between the first alloy layer and the second alloy layer, and the composition of the corresponding alloy layer is the same as that in Embodiment 1.

[0056] The preparation method of composite metal material comprises the following steps:

[0057] 3003 aluminum alloy and 4A60 aluminum alloy are hot-rolled and compounded first, and the cladding ratio of 4A60 is 5%;

[0058] When rolling and compounding with 430 stainless iron, the surface of the acid-base washed stainless iron plate is polished with a roller brush and then rolled and compounded with the 4A60 aluminum alloy surface of the 3003 aluminum alloy / 4A60 aluminum alloy composite plate, and the rolling temperature is 400 ℃, rolling speed 4m / min, reduction rate 25%;

[0059] Then the finished product is annealed, the annealing system is 350°C, and the temperature is kept for 2.5h.

[...

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Abstract

The invention discloses a composite metal material, a preparation method thereof and a metal material product. The composite metal material comprises a first alloy layer, a second alloy layer and a third alloy layer which is made from 4A60 aluminum alloy and located between the first alloy layer and the second alloy layer. The preparation method of the composite metal material comprises the following steps that step one, one face of the first alloy layer and one face of the third alloy layer are subjected to hot rolling bonding; step two, the other face of the third alloy layer and one face of the second alloy layer are subjected to hot rolling bonding at 200-400 DEG C; and step three, a finished product obtained through hot rolling bonding is annealed to obtain the composite metal material. According to the composite metal material, the preparation method thereof and the metal material product, by adoption of the 4A60 aluminum alloy of the third alloy layer, the thermodynamic temperature generated from the middle brittle phase of aluminum and iron is increased, and therefore, by adoption of the preparation method of the composite metal composite, on the premise that the product percent of pass is ensured, the temperature in the deep drawing process of the aluminum and the 430 stainless iron is increased, and the machining efficiency of the product is improved.

Description

technical field [0001] The invention belongs to the technical field of kitchen utensil materials, and in particular relates to a composite metal material, a preparation method of the composite metal material, and a metal material product made of the composite metal material. Background technique [0002] At present, pots such as soup pots, woks, and rice cookers in the kitchen utensils market have been processed from aluminum / stainless iron, stainless steel / aluminum / stainless iron composite materials from the original aluminum pots and iron pots. In addition to the high thermal conductivity of aluminum, it also has the magnetic conductivity of stainless iron, and has the advantages of wear resistance, corrosion resistance, and beautiful appearance. [0003] The traditional aluminum / stainless iron composite material is composed of 3003 aluminum alloy and 430 stainless iron. The pot of this material is deep drawn at 410-430°C. As the market competition becomes more and more fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02C22C21/00C22C38/18B21B1/38B32B15/01B32B15/18B32B15/20
CPCB21B1/38B21B2001/386B32B15/012C22C21/00C22C21/02C22C38/18
Inventor 张小军李龙周德敬
Owner YINBANG CLAD MATERIAL
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