A kind of rapid rolling formable magnesium metal plate and its rolling method

A magnesium metal and plate technology, which is applied to the rolling forming process of magnesium alloy alloy plates and the field of metal material manufacturing, and achieves the effects of simple processing method, fast deformation speed and strong forming ability.

Active Publication Date: 2017-07-07
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is little to no coverage of this aspect in current magnesium metal rolling processes

Method used

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  • A kind of rapid rolling formable magnesium metal plate and its rolling method
  • A kind of rapid rolling formable magnesium metal plate and its rolling method
  • A kind of rapid rolling formable magnesium metal plate and its rolling method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The Mg-0.5Zn-0.5Er alloy obtained by ordinary casting is solution-treated, and then cut and milled to obtain a rolling blank, and the blank is placed in a holding furnace for treatment, and the temperature of the holding furnace is 400°C. Set rolling speed to 2.0m / s. First, the rolling temperature is 400°C, the deformation in the first pass is 30%, and then the second rolling is carried out, the deformation is 25%, and the above rolling direction is 0°; then the alloy Place it in a 345°C holding furnace for heat preservation for 15 minutes, and then roll the alloy in a low-temperature stage at a rolling temperature of 345°C, with a single-pass deformation of 10% and a rolling direction of 90°. 2 passes; then place the alloy in a holding furnace for heat preservation, the heat preservation temperature is 300°C, and the heat preservation time is 30 minutes, and the heat-preserved alloy continues to be rolled at a low temperature stage, the rolling temperature is 300°C, an...

Embodiment 2

[0030] The Mg-1.0Zn-0.5Er alloy obtained by ordinary casting is solution-treated, and then cut and milled to obtain a rolling blank, and the blank is placed in a holding furnace for treatment, and the temperature of the holding furnace is 450°C. Set rolling speed to 2.5m / s. Firstly, the rolling temperature is 450°C, the deformation per pass is 25%, the above rolling direction is 0°, and the rolling is 1 pass; then the rolling temperature is lowered to 400°C, and the sample is kept at this temperature for 15 minutes, and each The amount of deformation per pass is 30%, the rolling direction above is 90°, and one pass is rolled; then low-temperature stage rolling is carried out, and the rolling temperature is set at 300°C, and then the alloy is placed in a holding furnace for heat preservation. The holding temperature is 300°C, the holding time is 30min, and the heat-preserved alloy is continued to be rolled at the low temperature stage, the rolling temperature is 300°C, the sing...

Embodiment 3

[0032] The Mg-1.5Zn-1.0Er alloy obtained by ordinary casting is solution-treated, and then cut and milled to obtain a rolling blank, and the blank is placed in a holding furnace for treatment, and the temperature of the holding furnace is 400°C. Set rolling speed to 2.5m / s. The rolling temperature is 400°C, the deformation of each pass is 35%, the pass is 1 pass, and the rolling direction is 0°; then the alloy is placed in a holding furnace at 475°C for 15 minutes, and then The alloy is rolled at a low temperature stage, the rolling temperature is 475°C, the deformation in a single pass is 25%, the rolling direction is 90°, and a total of 1 pass is rolled; then the alloy is placed in a holding furnace for heat preservation, heat preservation The temperature is 350°C, and the holding time is 30 minutes. Then lower the furnace temperature to 250°C, keep it warm for 15 minutes, and continue rolling the heat-preserved alloy at a low temperature stage. The rolling temperature is 2...

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Abstract

The invention belongs to the manufacturing technology of metal materials, and relates to a magnesium metal plate capable of being quickly rolled and formed and a rolling method of the magnesium metal plate. Zn and Er are selected as main alloying elements, the additive amount of Zn is 0-5.0 wt%, the additive amount of Er is 0-1.0 wt%, the sum of the mass percents of Zn and Er is not smaller than 0.5% and not larger than 5.0%, and Mg serves as the balance. The high-temperature rolling temperature interval ranges from 350 to 500 DEG C, and deformation of each pass is 25%-35%. The low-temperature rolling temperature interval ranges from 250 to 350 DEG C and does not include 350 DEG C, and deformation of each pass is 10%-25%. The accumulated deformation of high-temperature rolling and low-temperature rolling is not smaller than 80%. The plate is smooth in surface and edge and free of cracking, and is a metal material of the plate capable of being quickly rolled and formed.

Description

technical field [0001] The invention relates to a rolling forming process of a magnesium alloy plate, which belongs to the metal material manufacturing technology, in particular to a forming method of a magnesium metal plate. Background technique [0002] As a new type of light metal application material, magnesium alloy has the advantages of high specific strength, small specific gravity, high damping, high thermal conductivity, good shock absorption, and easy recycling. Therefore, in recent years, magnesium alloys have been widely used in aerospace, automobiles, 3C products, etc., and are recognized as the most promising lightweight metal materials in the industry. However, magnesium has a close-packed cubic structure, and its processing performance is not good at low temperatures, which has caused great difficulties in the preparation of its plates. However, as a very important metal processing product in the formed products of metal materials, plate is an important supp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C23/04C22C23/06C22F1/06
CPCC22C23/04C22C23/06C22F1/06
Inventor 杜文博孙翠翠刘轲王朝辉李淑波杜宪
Owner BEIJING UNIV OF TECH
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