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Single-pass and large-rolling-reduction magnesium alloy plate preparation method

A large reduction, magnesium alloy technology, used in metal rolling, metal rolling, metal processing equipment and other directions, can solve the problems of edge cracking, increasing scrap rate, deformation and uneven deformation along the transverse direction, etc. The effect of increased tensile strength, simplified rolling process, and reduced energy consumption

Active Publication Date: 2022-02-25
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiment of the present invention is to provide a single-pass, large-reduction magnesium alloy plate preparation method, which aims to solve the need for multiple heating between the passes of the existing commercial magnesium alloy plate rolling; In the process, the deformation along the rolling direction and the deformation along the transverse direction are extremely easy to be uneven, especially the uneven width will cause edge cracking, which seriously increases the problem of scrap rate in the rolling process

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  • Single-pass and large-rolling-reduction magnesium alloy plate preparation method
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  • Single-pass and large-rolling-reduction magnesium alloy plate preparation method

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Embodiment 1

[0030] Such as figure 1 , 2 , 3, 4 and 5, a method for preparing a single-pass, large-reduction magnesium alloy plate provided by an embodiment of the present invention comprises the following steps:

[0031] Step S1: Degreasing the surface of the magnesium alloy rod to obtain a magnesium alloy rod with a clean surface;

[0032] Step S2: Degreasing the inner surface of the stainless steel tube to obtain a stainless steel tube with a clean inner surface;

[0033] Step S3: Homogenizing heat treatment: placing the magnesium alloy in a heating furnace and keeping it warm at 300° C. for 6 hours to perform homogenizing treatment;

[0034] Step S4: evenly apply a lubricant on the surface of the magnesium alloy, wherein the lubricant is boron nitride;

[0035] Step S5: After inserting the magnesium alloy rod into the stainless steel pipe, use a press to flatten both ends of the stainless steel pipe, and completely seal the magnesium alloy rod inside the steel pipe, wherein: the len...

Embodiment 2

[0047] Such as figure 1 , 2 , 3, 4 and 5, a method for preparing a single-pass, large-reduction magnesium alloy plate provided by an embodiment of the present invention comprises the following steps:

[0048] Step S1: Degreasing the surface of the magnesium alloy rod to obtain a magnesium alloy rod with a clean surface;

[0049] Step S2: Degreasing the inner surface of the stainless steel tube to obtain a stainless steel tube with a clean inner surface;

[0050] Step S3: Homogenizing heat treatment: placing the magnesium alloy in a heating furnace and keeping it warm at 300° C. for 6 hours to perform homogenizing treatment;

[0051] Step S4: evenly apply a lubricant on the surface of the magnesium alloy, wherein the lubricant is boron nitride;

[0052] Step S5: After inserting the magnesium alloy rod into the stainless steel pipe, use a press to flatten both ends of the stainless steel pipe, and completely seal the magnesium alloy rod inside the steel pipe, wherein: the len...

Embodiment 3

[0057] Such as figure 1 , 2 , 3, 4 and 5, a method for preparing a single-pass, large-reduction magnesium alloy plate provided by an embodiment of the present invention comprises the following steps:

[0058] Step S1: Degreasing the surface of the magnesium alloy rod to obtain a magnesium alloy rod with a clean surface;

[0059] Step S2: Degreasing the inner surface of the stainless steel tube to obtain a stainless steel tube with a clean inner surface;

[0060] Step S3: Homogenizing heat treatment: placing the magnesium alloy in a heating furnace and keeping it warm at 300° C. for 6 hours to perform homogenizing treatment;

[0061] Step S4: evenly apply a lubricant on the surface of the magnesium alloy, wherein the lubricant is boron nitride;

[0062] Step S5: After inserting the magnesium alloy rod into the stainless steel pipe, use a press to flatten both ends of the stainless steel pipe, and completely seal the magnesium alloy rod inside the steel pipe, wherein: the len...

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Abstract

The invention is suitable for the field of metal processing, and provides a single-pass and large-rolling-reduction magnesium alloy plate preparation method which comprises the steps of respectively degreasing the outer surface of a magnesium alloy bar and the inner wall of a stainless steel pipe to obtain a clean surface; assembling the magnesium alloy bar into the steel pipe, and sealing the edges of the two ends of the steel pipe by using a press machine to obtain a completely closed sample; putting the completely closed sample into a heating furnace, and preserving heat for a certain time; carrying out a rolling process on the sample of which the temperature is kept; and cutting off the steel pipe by using a cutting means to obtain the formed magnesium alloy plate. According to the preparation method for rolling the magnesium alloy plate with the single-pass and large rolling reduction, the problems that in the traditional magnesium alloy plate rolling process, the pass number is large, and the single-pass rolling reduction is small are solved, the room-temperature strength of the magnesium alloy plate prepared through the technology is 300 MPa or above, the room-temperature ductility reaches 23% or above, and the strength and the ductility can be realized at the same time.

Description

technical field [0001] The invention belongs to the field of metal processing, and in particular relates to a single-pass, large-reduction magnesium alloy plate preparation method. Background technique [0002] As the lightest structural material at present, magnesium alloy has a density of about two-thirds of aluminum and a quarter of steel. Magnesium is an abundant element, the eighth most abundant element in the earth's crust, and the third most ionic in seawater. At the same time, it also has excellent properties such as high specific strength and high specific stiffness. It is known as "the green engineering material of the 21st century" and has broader application prospects in aerospace, automobile, 3C and other industries. With my country's increasing requirements for environmental protection, energy saving and emission reduction, the field of metal lightweight has become one of the important development trends of industrial development. In addition, my country's mag...

Claims

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Application Information

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IPC IPC(8): B21B1/38B21B3/00B21B47/00B21B47/02B21B47/04C22F1/06
CPCB21B1/38B21B3/00B21B47/00B21B47/02B21B47/04C22F1/06Y02P10/20
Inventor 胡志清习佳李昕宸笪立佳
Owner JILIN UNIV
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