Magnesium-lithium alloy foil and preparation method and application thereof

A magnesium-lithium alloy and foil technology, applied in metal rolling, temperature control and other directions, can solve the problems of low yield, long time, complicated preparation process, etc., and achieve the effects of high yield, less burrs and short preparation process.

Active Publication Date: 2020-04-14
郑州轻研合金科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are few related technologies about the preparation method of magnesium-lithium alloy foil. At the same time, the preparation process of magnesium-lithium alloy foil is relatively complicated, takes a long time, and has a low yield.

Method used

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  • Magnesium-lithium alloy foil and preparation method and application thereof
  • Magnesium-lithium alloy foil and preparation method and application thereof
  • Magnesium-lithium alloy foil and preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0033] A magnesium-lithium alloy foil material, which is prepared by extruding a magnesium-lithium alloy round ingot and coil-type warm rolling, wherein the magnesium-lithium alloy round ingot is composed of the following components in mass percentage: 9 % Li, 1% Al, 0.5% Zn, 0.5% Sr, 0.1% Y, of which the total amount of impurity elements Fe, Ni, Si is less than 0.1%, and the balance is Mg.

[0034] Concrete preparation process is as follows:

[0035] (1) Extrusion blanking and strip coiling of magnesium-lithium alloys: the round ingots of magnesium-lithium alloys with a diameter of Φ90 mm prepared by vacuum melting and casting are turned to remove the surface scale, and then placed in a box-type resistance furnace for heating, at 250 ℃ temperature for 5 hours, and then directly use large deformation processing (hot extrusion) to open the billet, the extrusion ratio used is 20, the extrusion temperature is 250 ℃, and then the coiler is used to coil the extruded strip to obtain...

Embodiment 2

[0043] A magnesium-lithium alloy foil material, which is prepared by extruding a magnesium-lithium alloy round ingot and coil-type warm rolling, wherein the magnesium-lithium alloy round ingot is composed of the following components in mass percentage: 11 % Li, 3% Al, 1% Zn, 3% Cd, 0.5% Ca, of which the total amount of impurity elements Fe, Ni, Si is less than 0.1%, and the balance is Mg.

[0044] Concrete preparation process is as follows:

[0045] (1) Extrusion billeting and strip coiling of magnesium-lithium alloys: Turn the round ingots of magnesium-lithium alloys with a diameter of Φ180 prepared by vacuum melting and casting to remove the surface scale, and then put them into a box-type resistance furnace for heating. Keep warm for 5 hours, and then directly use large deformation processing (hot extrusion) to open the billet. The extrusion ratio used is 75, and the extrusion temperature is 230 ° C. Then the coiler is used to coil the extruded strip to obtain the dimension...

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Abstract

The invention belongs to the technical field of magnesium-lithium alloy materials, and particularly relates to a magnesium-lithium alloy foil and a preparation method and application thereof. A magnesium-lithium alloy cast ingot is coiled into an alloy coiled tape with the thickness of 1.5-3.5 mm through large-deformation hot extrusion cogging, then, multi-pass coiling type cooling rolling is conducted through a four-roller aluminum foil rolling mill provided with a tension roller set and a coiling machine, and thus the magnesium-lithium alloy foil is obtained, wherein the minimum thickness ofthe magnesium-lithium alloy foil can be rolled to 0.014 mm. The foil is short in preparation process, high in efficiency, small in residual stress, fine in grain, smooth, free of burrs and high in yield, and the yield can reach 80% or above. The magnesium-lithium alloy foil is used for preparing a vibrating diaphragm or a vibrating diaphragm dome base material, and has good shock absorption performance and high fidelity.

Description

technical field [0001] The invention belongs to the technical field of magnesium-lithium alloy materials, and in particular relates to a magnesium-lithium alloy foil material and a preparation method and application thereof. Background technique [0002] With the rapid development of electronic information technology, consumers not only care about the miniaturization and multi-function of electronic products, but also require high-quality and distortion-free voice effects. As the core component of the sound, the diaphragm is designed to directly affect the performance of the electroacoustic device. Therefore, in order to improve the vibration strength of the diaphragm, the existing single-layer plastic material or metal layer + foam layer + metal layer Due to its small specific strength, small high-frequency vibration range of electro-acoustic devices, and heavy weight, the sandwich structure cannot meet the technical requirements of some new products. Therefore, it is neces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C23/00C22F1/06C22F1/02B21C23/00B21C29/00B21B1/46B21B37/74
CPCB21B1/466B21B37/74B21C23/002B21C29/00C22C23/00C22F1/02C22F1/06
Inventor 刘金学解海涛肖阳刘志鹏郭晓光王飞超王军武
Owner 郑州轻研合金科技有限公司
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