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Method for manufacturing extruded bar from magnesium alloy

A manufacturing method, magnesium alloy technology, applied in the direction of manufacturing tools, other manufacturing equipment/tools, etc., can solve the problems of low rigidity, large specific gravity, unfavorable cutting process, etc., and achieve the effect of reducing structural quality, small specific gravity, and simple manufacturing method

Active Publication Date: 2005-11-16
NORTHEAST LIGHT ALLOY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for manufacturing magnesium alloy extruded rods in order to solve the problems of large specificity, low rigidity, and unfavorable cutting processing in the field of aerospace.

Method used

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specific Embodiment approach 1

[0005] Embodiment 1: The manufacturing method of the magnesium alloy extruded rod of the present embodiment is completed by the following steps: a, melting the magnesium alloy raw material ingot, and the melting temperature is 695-745 ° C; b, melting the molten metal Casting, the casting temperature is 695-745°C, the casting speed is 1.8-2.4m / h, and cast into a solid round ingot of magnesium alloy; c. Place the solid round ingot of magnesium alloy in a homogeneous furnace for heating, and the heating temperature reaches 375- After 425°C, keep warm for 12-18 hours, and cool down to room temperature naturally; d. Place the cooled magnesium alloy solid round ingot in a heating furnace for heating. After the heating temperature reaches 300-430°C, take out the magnesium alloy solid round ingot, and carry out Extrusion, the extrusion pressure is 20-54MN, and then straightened to make finished products.

[0006] Tensile strength Rm=195~310mm 2 / N.

specific Embodiment approach 2

[0007] Embodiment 2: The differences between this embodiment and Embodiment 1 are: the melting temperature of step a is 710-730°C; the casting temperature of step b is 710-730°C, and the casting speed is 2.0-2.4m / h; The heating temperature in step c is 390-405° C., and the temperature is kept for 18 hours; the heating temperature in step d is 300-370° C.

[0008] Tensile strength Rm=210~240mm 2 / N, elongation A=5-8%.

specific Embodiment approach 3

[0009] Specific embodiment three: the differences between this embodiment and specific embodiment two are: the melting temperature of step a is 711°C; the casting temperature of step b is 711°C, and the casting speed is 2.0lm / h; the heating temperature of step c is 391°C; the heating temperature in step d is 301°C.

[0010] Tensile strength Rm=212mm 2 / N, elongation A=5.5%.

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Abstract

A technology for manufacturing the squeezed Mg-alloy rod includes smelting Mg-alloy ingot, casting solid circular ingot, heating for 12-18 hrs, natural cooling, heating, squeezing and straightening. Its advantages are low specific weight and high rigidity.

Description

Technical field: [0001] The invention relates to a method for manufacturing an alloy extruded rod, in particular to a method for manufacturing a magnesium alloy extruded rod. Background technique: [0002] It is more common to use steel to make some parts in the aerospace field such as aircraft, missiles, artificial satellites and spacecraft. Due to the large specificity and low rigidity of steel, it is not conducive to cutting. Therefore, steel is used to make parts in the aerospace field. components are limited. Invention content: [0003] The purpose of the present invention is to provide a method for manufacturing magnesium alloy extruded rods in order to solve the problems of heavy specificity, low rigidity, and unfavorable cutting processing in the current aerospace field using steel to make parts. It is completed by the following steps: a. Melting the magnesium alloy raw material ingot at a melting temperature of 695-745°C; b. Casting the molten metal at a casting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P23/04
Inventor 郑祥建左宏卿吕丹金龙兵付忠国
Owner NORTHEAST LIGHT ALLOY CO LTD
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