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Multi-directional repeated extrusion deformation processing device and procesisng method for magnesium alloy profile

A technology of repeated extrusion and processing methods, applied in the direction of metal extrusion dies, etc., to achieve the effect of convenient operation, avoiding stress concentration, uniform and fine grain structure

Active Publication Date: 2020-12-18
HUNAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the object of the present invention is to provide a multi-directional repeated extrusion deformation processing device for magnesium alloy profiles. Pressed samples can be cut into flakes or blocks of magnesium alloy products to prepare a large number of high-performance magnesium alloy products of various sizes, which improves production efficiency and processing accuracy. In addition, it is easy to disassemble and easy to maintain. The wear of the punch is small, and the magnesium alloy processed by this device has good strength, plasticity and corrosion resistance

Method used

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  • Multi-directional repeated extrusion deformation processing device and procesisng method for magnesium alloy profile
  • Multi-directional repeated extrusion deformation processing device and procesisng method for magnesium alloy profile
  • Multi-directional repeated extrusion deformation processing device and procesisng method for magnesium alloy profile

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Embodiment 1

[0033]A multi-directional repeated extrusion and deformation processing device for magnesium alloy profiles includes a convex mold 1, an upper concave mold 2 and a lower concave mold 6. The upper concave mold 2 is provided with a mold cavity, and the mold cavity is formed by a convex mold. The channel 3 and the extrusion channel 5 are composed of the male die channel 3 in the shape of a rectangular parallelepiped, the extrusion channel 5 is in the shape of an inverted regular quadrangular pyramid, and the upper die 2 and the lower die 6 are connected and combined by screws and pins. The convex mold 1 is set in the convex mold channel 3 and cooperates with the convex mold channel 3; preferably, the length L of the bottom edge of the mold cavity quadrangular table is greater than or equal to the mold The height H of the quadrangular prism of the cavity, the four rims of the quadrangular prism are all set up obliquely, and have a 1mm round corner.

[0034]The method for multi-directional ...

Embodiment 2

[0047]A multi-directional repeated extrusion and deformation processing device for magnesium alloy profiles includes a convex mold 1, an upper concave mold 2 and a lower concave mold 6. The upper concave mold 2 is provided with a mold cavity, and the mold cavity is formed by a convex mold. The channel 3 and the extrusion channel 5 are composed of the male die channel 3 in the shape of a rectangular parallelepiped, the extrusion channel 5 is in the shape of an inverted regular quadrangular pyramid, and the upper die 2 and the lower die 6 are connected and combined by screws and pins. The convex mold 1 is set in the convex mold channel 3 and cooperates with the convex mold channel 3; preferably, the length L of the bottom edge of the mold cavity quadrangular table is greater than or equal to the mold The height H of the four-sided pedestal of the cavity, the four edges of the four-sided pedestal are set up obliquely, and have a rounded corner of 1.5mm.

[0048]The method for multi-direct...

Embodiment 3

[0061]A multi-directional repeated extrusion and deformation processing device for magnesium alloy profiles includes a convex mold 1, an upper concave mold 2 and a lower concave mold 6. The upper concave mold 2 is provided with a mold cavity, and the mold cavity is formed by a convex mold. The channel 3 and the extrusion channel 5 are composed of the male die channel 3 in the shape of a rectangular parallelepiped, the extrusion channel 5 is in the shape of an inverted regular quadrangular pyramid, and the upper die 2 and the lower die 6 are connected and combined by screws and pins. The convex mold 1 is set in the convex mold channel 3 and cooperates with the convex mold channel 3; preferably, the length L of the bottom edge of the mold cavity quadrangular table is greater than or equal to the mold The height H of the quadrangular prism of the cavity, the four rims of the quadrangular prism are all set up obliquely, and have a 2mm rounded corner.

[0062]The method for multi-directiona...

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Abstract

The invention relates to the technical field of metal material processing equipment, in particular to a multi-directional repeated extrusion deformation processing device and a processing method for amagnesium alloy profile. The processing device comprises a male die, an upper female die and a lower female die; the upper female die is provided with a die cavity; the die cavity is composed of a male die channel and an extrusion channel; the male die channel is in a cuboid shape; the extrusion channel is in an inverted regular quadrangular frustum pyramid shape; the upper female die and the lower female die are connected, positioned and combined into the female die through screws and pins; and the male die is arranged in the male die channel and is matched with the male die channel. The processing device provided by the invention is simple in structure, convenient to operate, beneficial to extrusion sample demolding, capable of preparing a large number of high-performance magnesium alloy products of various sizes, capable of improving the production efficiency and the processing precision, easy to disassemble, convenient to maintain, small in abrasion to the male die under the condition of long-time extrusion production, and the magnesium alloy processed by the device has good strength, plasticity and corrosion resistance.

Description

Technical field[0001]The invention relates to the technical field of metal material processing equipment, in particular to a multi-directional repeated extrusion deformation processing device and processing method for magnesium alloy profiles.Background technique[0002]Magnesium alloys have the characteristics of low density, high specific strength and specific rigidity, and have broad application prospects in various fields. However, the magnesium alloy has a close-packed hexagonal crystal structure, few independent slip systems, and poor plasticity at room temperature, which causes its application range to be greatly restricted. When the deformation temperature is higher than 498K, the plastic deformation ability of the magnesium alloy is improved to a certain extent. Traditional cast magnesium alloys have gradually been unable to meet industrial requirements. Wrought magnesium alloys produced by extrusion, forging, rolling and other processes have higher strength and better ductil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C25/02B21C23/21B21C23/32B21C29/00B21C29/04
CPCB21C25/02B21C23/21B21C23/212B21C23/32B21C29/003B21C29/04
Inventor 卢立伟项瑶车波马旻刘楚明唐伦圆马虎文
Owner HUNAN UNIV OF SCI & TECH
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