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Warm-rolling manufacture method for magnesium or magnesium alloy sheet

A manufacturing method, magnesium alloy technology, applied in the field of thin plate manufacturing, can solve the problems of low yield of magnesium and magnesium alloy thin plates, and achieve the effects of ensuring flatness, continuous production, and reducing manufacturing costs

Active Publication Date: 2010-02-24
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of low yield of magnesium and magnesium alloy thin plates obtained by the existing magnesium and magnesium alloy thin plate hot rolling technology, the present invention provides a warm rolling manufacturing method for magnesium or magnesium alloy thin plates

Method used

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Examples

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Effect test

specific Embodiment approach 1

[0009] Embodiment 1: The manufacturing method of magnesium or magnesium alloy thin plate in this embodiment is carried out according to the following steps: 1. Hot rolling magnesium or magnesium alloy ingot into a slab with a thickness of 4 mm, the rolling temperature is 400 ° C; 2. Roll the slab in step one for four passes, the rolling temperature of the first pass is 250°C, the rolling reduction of the first pass is 40% to 50%, and the rolling of the second pass The rolling temperature is 240-230°C, the rolling reduction is 30%-50%, the rolling temperature of the third pass is 220-210°C, the rolling reduction of the third pass is 30%-50%, the third pass The rolling temperature of the four passes is 200-160°C, and the rolling reduction of the fourth pass is 40%-50%, so that a magnesium or magnesium alloy thin plate is obtained.

[0010] In this embodiment, the thickness of the magnesium or magnesium alloy thin plate produced is 0.3-0.4 mm, and the yield of the produced magnes...

specific Embodiment approach 2

[0011] Embodiment 2: This embodiment differs from Embodiment 1 in that the rolling temperature of the second pass in step 2 is 240°C. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0012] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the rolling reduction in the second pass in step 2 is 40%. Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention discloses a warm-rolling manufacture method for a magnesium or magnesium alloy sheet and relates to a manufacture method of a sheet. The invention solves the problem of low yield of themagnesium and magnesium alloy sheet produced by the prior hot-rolling process of the magnesium and magnesium alloy sheet. The method comprises the following steps: hot-rolling a magnesium or magnesiumalloy casting ingot to manufacture a sheet blank with thickness of 4mm; then rolling the sheet blank for four or five steps and gradually reducing the rolling temperature to obtain the magnesium or magnesium alloy sheet. The method has high yield more than 70 percent and can realize the continuous production of the magnesium and magnesium alloy sheet.

Description

technical field [0001] The present invention relates to a method of manufacturing thin plates. Background technique [0002] As we all know, magnesium and magnesium alloys are not only light in weight, but also have similar strength to aluminum alloys, especially good electromagnetic shielding properties. They are used in notebook computers, mobile phones, digital cameras and computer casings, which can provide electromagnetic protection and ensure human health. was generally welcomed. Especially in today's household appliances more and more, such as refrigerators, washing machines, televisions, microwave ovens, electric water heaters, etc., have become people's necessary daily necessities, so that human beings live in an environment of electromagnetic radiation. Using magnesium alloy instead of plastic and other metal materials to make the shell of household appliances has better electromagnetic protection effect, so the future market prospect of magnesium or magnesium all...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/22B21B37/74B21B37/58
Inventor 王尔德王欣胡连喜杨德山
Owner HARBIN INST OF TECH
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