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Magnesium/steel layered composite material and preparation method thereof

A composite material and composite billet technology, applied in metal layered products, chemical instruments and methods, lamination, etc., can solve the problems of high equipment requirements, decreased interface bonding strength, interface cracking failure, etc., and achieves low equipment requirements and production. The effect of low cost and convenient operation

Active Publication Date: 2019-06-07
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, since zinc or aluminum can form intermetallic compounds with iron and magnesium, the magnesium / intermediate layer / steel composite board cannot be heated, plastically formed, heat-treated or used under high temperature conditions for a long time, otherwise the interlayer interface will be Gradually form a brittle intermetallic compound layer with increasing thickness, resulting in the gradual decrease of the interface bonding strength between layers with the prolongation of time under high temperature conditions, which can easily lead to interface cracking and failure under the action of external force
At the same time, this preparation method needs to heat the magnesium / steel composite blank under vacuum or inert gas atmosphere conditions, the operation is cumbersome, the equipment requirements are high, and the price of the required equipment is expensive, resulting in high production costs of the magnesium / steel composite plate, and Due to the size of the equipment, the width and length of the magnesium / steel composite panels that can be produced are limited

Method used

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  • Magnesium/steel layered composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Preparation of Q235 steel / pure magnesium / Q235 steel layered composite material.

[0029]Using pure magnesium plate with a thickness of 7mm and Q235 steel plate with a thickness of 1.5mm as raw materials, the surface of the pure magnesium plate and Q235 steel plate to be compounded is treated by wire brush grinding method, and the pollution layer on the surface to be compounded is removed, so that the fresh metal is exposed , while obtaining the uneven surface structure and the grinding stripes perpendicular to the length direction of the pure magnesium plate and the Q235 steel plate, and obtaining the pure magnesium plate to be compounded and the Q235 steel plate to be compounded;

[0030] The pure magnesium plate to be compounded and the Q235 steel plate to be compounded are laminated and combined in the order of Q235 steel / pure magnesium / Q235 steel to form a composite billet, and the composite billet is wrapped with an aluminum foil sleeve with a thickness of 0.01mm, t...

Embodiment 2

[0036] Preparation of SUS310s steel / pure magnesium / Mn13 steel layered composites.

[0037] The pure magnesium plate with a thickness of 7.5mm, the SUS310s steel plate with a thickness of 1mm and the Mn13 steel plate with a thickness of 1.5mm are used as raw materials, and the surface of the pure magnesium plate, SUS310s steel plate and Mn13 steel plate to be composited is treated by grinding wheel grinding method, and the surface to be composited is removed. The pollution layer on the compound surface exposes the fresh metal, and at the same time obtains the uneven surface structure and the grinding stripes perpendicular to the length direction of the pure magnesium plate, SUS310s steel plate and Mn13 steel plate, and obtains the pure magnesium plate to be compounded, the SUS310s steel plate to be compounded and the Composite Mn13 steel plate;

[0038] The pure magnesium plate to be compounded, the SUS310s steel plate to be compounded and the Mn13 steel plate to be compounded ...

Embodiment 3

[0044] Preparation of 1Cr5Mo steel / pure magnesium / 1Cr5Mo steel layered composite material.

[0045] Using a pure magnesium plate with a thickness of 8mm and a 1Cr5Mo steel plate with a thickness of 0.5mm and 1mm as raw materials, the surface to be compounded of the pure magnesium plate and the 1Cr5Mo steel plate is treated by abrasive belt grinding to remove the contamination layer on the surface to be compounded. The fresh metal is exposed, and the uneven surface structure and the grinding stripes perpendicular to the length direction of the pure magnesium plate and the 1Cr5Mo steel plate are obtained at the same time, and the pure magnesium plate and the 1Cr5Mo steel plate to be compounded are obtained;

[0046] The pure magnesium plate to be compounded and the 1Cr5Mo steel plate to be compounded are laminated and combined in the order of 1Cr5Mo steel / pure magnesium / 1Cr5Mo steel to form a composite billet, and the composite billet is wrapped with an aluminum foil sleeve with ...

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Abstract

The invention relates to a magnesium / steel layered composite material and a preparation method thereof, belonging to the field of metal layered composite materials. The magnesium / steel layered composite material of the present invention is formed by interfacial metallurgical bonding of magnesium material and steel material, without an intermediate layer between the magnesium material and the steelmaterial, and is prepared by the steps of mechanical grinding surface treatment, alternating lamination and combination to form composite blanks, wrapping the composite blanks with metal sleeve and performing vacuum treatment, heating, hot rolling, diffusion heat treatment after removing the metal sleeve, and the like. The invention has the advantages that the magnesium / steel layered composite material has both excellent mechanical properties and vibration damping properties, can be used at the working temperature of 200-600 DEG C for a long time without solid solution or intermetallic compound at that interface between magnesium and steel, the interfacial bonding strength is stable or even gradually increased in the working temperature range, and the magnesium / steel layered composite billet need not be heated in vacuum or inert gas atmosphere, so the operation is convenient, the requirement for equipment is low, the price of required equipment is cheap, and the production cost is low, so the composite billet has universal popularization and application value.

Description

technical field [0001] The invention belongs to the field of metal layered composite materials, and in particular relates to a magnesium / steel layered composite material and a preparation method thereof. technical background [0002] The vibration damping plate was invented by the United States in the 1970s. It was first introduced to China through practical research and industrial production in the United States and Japan, and then developed rapidly. It can not only meet the increasing stability, precision and noise reduction of weapons and equipment. And other demands, also taking the second noise restriction in 1984 as an opportunity, it has become a key material to meet the people's pursuit of higher quality of life such as quiet living space. [0003] At present, the most widely used military and civilian vibration damping plate is steel / resin layered composite plate (referred to as vibration damping steel plate), the thickness of the steel layer is usually 0.3-1.6mm, a...

Claims

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Application Information

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IPC IPC(8): B32B15/01B32B37/02B32B37/06B32B38/00B21B1/38B21B47/00C21D9/00C22C23/00C22F1/06
Inventor 刘雪峰白于良石章智王文静孙延蓝
Owner UNIV OF SCI & TECH BEIJING
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