Composite preparation die made from high-performance wrought magnesium alloy

A deformed magnesium alloy, high-performance technology, applied in the field of magnesium alloy processing, can solve the problems of low density and toughness, inability to fully develop the potential of material performance, coarse grains of materials, etc., and achieve huge development potential and dynamic precipitation effect Significant, fine and uniform grain effect

Active Publication Date: 2018-11-27
SOUTHWEST UNIVERSITY
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  • Description
  • Claims
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Problems solved by technology

[0006]The applicant carefully analyzed the existing technology and found that most of the existing high-performance magnesium alloy processing technology is based on the as-cast ingot obtained by natural cooling under normal pressure. The preparation and processing metho

Method used

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  • Composite preparation die made from high-performance wrought magnesium alloy
  • Composite preparation die made from high-performance wrought magnesium alloy
  • Composite preparation die made from high-performance wrought magnesium alloy

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Embodiment Construction

[0027] In order to illustrate the shape and structure of the present invention more clearly, ZK60-1Yb deformed magnesium alloy is used as an example material below, and the present invention is further described in detail in conjunction with the accompanying drawings.

[0028] Such as figure 1 As shown, a composite mold for the preparation of a high-performance wrought magnesium alloy, which integrates gold melting, high-specific-pressure controlled-speed condensation, diameter-reducing extrusion, and equal-diameter angular extrusion; Pressing cavity 9, reduced-diameter extrusion belt 8 and equal-diameter angular extrusion cavity 7, wherein the upper end of the cavity 12 is arranged with a matching punch 1, and a movable insert is arranged in the area of ​​the lower end extrusion cavity 9 The plate 10 is provided with an inner sleeve 2 and a heating jacket 3 covering the inner sleeve on the outer periphery. Eight heating pipes 4 are evenly arranged in the circumferential direc...

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Abstract

The invention discloses a composite preparation die made from high-performance wrought magnesium alloy. The composite preparation die integrates alloy melting, high specific pressure speed-control condensation, reducing extrusion and equal channel angular extrusion and specifically comprises a cavity, an extruding cavity, a reducing extrusion belt and an equal channel angular extrusion cavity which are sequentially connected, the upper end of the cavity is provide with a convex die matched with the cavity, a movable insertion plate is arranged in an extruding cavity area at the lower end, theperiphery is provided with an inner sleeve and a heating sleeve wrapping the inner sleeve, the heating sleeve is uniformly provided with 6-8 heating tubes in the peripheral direction, the periphery isprovided with a circular cooling chamber, thermocouples are arranged in the cavity, the heating sleeve and the circular cooling chamber, the thermocouples, the heating tubes and the circular coolingchamber are jointly controlled by a control system, and real-time acquisition and adjustment of die temperature are achieved. The composite preparation die can achieve accurate control of process parameters in a whole preparation period while die-change-free continuous production including alloy melting, cooling and pressure machining, and finally the high-performance wrought magnesium alloy material is obtained.

Description

technical field [0001] The invention belongs to the technical field of magnesium alloy processing, and in particular relates to a high-performance deformed magnesium alloy mechanical processing die, in particular to a composite preparation die integrating gold melting, cooling and pressure processing. Background technique [0002] The processing and preparation technology of high-performance magnesium alloys has always been a major problem restricting the production capacity and level of the industry. Due to the condensation and plastic deformation characteristics of magnesium alloy itself, its grain size, density, strength and toughness are low, which greatly limits its wide application as a high-performance structural material. Alloying, special processing technology and heat treatment are usually adopted in the industry. It is expected to improve the strength by means of second phase strengthening, fine grain strengthening, deformation strengthening and precipitation stre...

Claims

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Application Information

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IPC IPC(8): B22D18/02C22F1/06
CPCC22F1/06B22D18/02B22D27/04
Inventor 李路张存才王涛王雨李豪
Owner SOUTHWEST UNIVERSITY
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