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A kind of preparation method of metal multilayer board

A multi-layer board and metal technology, applied in metal rolling, manufacturing tools, heat treatment equipment, etc., can solve the problems of poor plasticity and low yield strength of metal multi-layer boards, and achieve the effect of high tensile plasticity

Active Publication Date: 2020-11-03
INST OF MECHANICS CHINESE ACAD OF SCI +1
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Problems solved by technology

The above-mentioned "sandwich" structure of the metal multilayer plate (304 SS (0.37mm) / Low C (2.60mm) / 304 SS (0.37mm)) has a low yield strength, and the low carbon steel in the middle can be quenched. Its yield strength is improved by the astenitic phase transformation, but the plasticity of the metal multi-layer plate after quenching is very poor. How to obtain greater plasticity while improving its yield strength through an effective technical means is a problem that the present invention aims to solve. The problem

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  • A kind of preparation method of metal multilayer board
  • A kind of preparation method of metal multilayer board
  • A kind of preparation method of metal multilayer board

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[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical methods in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative labor achievements belong to the protection scope of the present invention.

[0025] It should be noted that if there is a directional indication (such as up, down, left, right, front, back, etc.) in the embodiment of the present invention, the directional indication is only used to explain the relationship between the components in a certain posture. Relative positional relationship, movem...

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Abstract

The embodiment of the invention relates to a preparation method of a multi-layer metal board. The method comprises the following steps: rolling a first multi-layer metal board to obtain a second multi-layer metal board, wherein the thickness ratio of each layer of the second multi-layer metal board is equal to that of each layer of the first multi-layer metal board; heating the second multi-layermetal board within preset time until an intermediate layer of the second multi-layer metal board is fully austenitized; and quenching the heated second multi-layer metal board until the intermediate phase layer of the second multi-layer metal board is subjected to phase change, and thus obtaining a third multi-layer metal board with high strength. Therefore, a new multi-layer board with high interface effecting area ratio can be obtained; the obtained product is high in strength and high in tensile plasticity on the premise that low production cost and corrosion resistance are kept; and moreover, the method is easy to realize missive industrial production.

Description

technical field [0001] The embodiments of the present invention relate to the field of metal composite materials, in particular to a method for preparing a metal multilayer board with high strength and certain plasticity. Background technique [0002] Low-carbon steel has the obvious advantage of low cost in industrial production, but it is not corrosion-resistant during application. In order to maintain a low production cost while improving its corrosion resistance during service, low-carbon steel is used as the base material to produce thinner 304SS layers on both sides and a low-carbon steel layer in the middle by hot rolling. Metal multilayer panels with a "sandwich" structure. [0003] Metal materials have two important mechanical properties, namely, yield strength and uniform tensile elongation (referred to as plasticity). A high yield strength allows the metal to bear a large load before plastic deformation occurs, and a large plasticity allows it to undergo a large...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/38C21D1/18C21D9/00
CPCB21B1/38C21D1/18C21D9/0081
Inventor 何金燕焦四海袁福平武晓雷
Owner INST OF MECHANICS CHINESE ACAD OF SCI
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