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A preparation method for plasticized extrusion forming of deformed beryllium aluminum alloy plate

A technology of extrusion forming and beryllium aluminum alloy, which is applied in the field of plasticizing extrusion forming of deformed beryllium aluminum alloy plate, can solve the problems of specific gravity segregation and composition segregation of beryllium aluminum alloy plate, and achieves good performance, dense structure, and improved plasticity. The effect of deformability

Active Publication Date: 2018-05-29
KINKOU SUZHOU COPPER IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Purpose of the invention: In order to solve the deficiencies of the prior art, the present invention provides a method for preparing deformed beryllium-aluminum alloy plates by plasticizing extrusion, which solves the problems of specific gravity segregation and composition segregation of beryllium-aluminum alloy plates, and obtains compact structures and good performance beryllium aluminum alloy billet, and is conducive to improving the subsequent plastic deformation ability of beryllium aluminum billet

Method used

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  • A preparation method for plasticized extrusion forming of deformed beryllium aluminum alloy plate

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Step 1: Ingredients

[0034] In the mixture of beryllium powder and aluminum powder, the mass percentage of beryllium is 40%, the rest is aluminum, and the plasticizer is paraffin. The mixture of beryllium powder and aluminum powder and plasticizer are mixed evenly under vacuum according to the ratio of 30:3. Obtain mixed raw materials, wherein the particle size of the metal powder is 250 mesh to 350 mesh;

[0035] Step 2: Mixing

[0036] The mixed raw materials are vacuum mixed in a vacuum mixing granulator, the mixing temperature is 30°C, and the mixing time is 20 minutes. After mixing, the vacuum mixing granulator performs granulation, and the particle size after granulation is 10mm. , the length is 20mm;

[0037] Step 3: Extrude the billet

[0038] In a vacuum state, put the granulated mixture into the plunger extruder of the flat extrusion cylinder for extrusion, and the constant temperature oven set in the extrusion cylinder and the mold keeps the temperature a...

Embodiment 2

[0044] Step 1: Ingredients

[0045] In the mixture of beryllium powder and aluminum powder, the mass percentage of beryllium is 50%, the rest is aluminum, and the plasticizer is paraffin. The mixture of beryllium powder and aluminum powder and plasticizer are mixed evenly under vacuum according to the ratio of 40:5. Obtain mixed raw materials, wherein the metal powder particle size is 300 mesh;

[0046] Step 2: Mixing

[0047] The mixed raw materials are vacuum mixed in a vacuum mixing granulator, the mixing temperature is 50°C, and the mixing time is 100min. After mixing, the vacuum mixing granulator performs granulation, and the particle size after granulation is 20mm , the length is 20mm;

[0048] Step 3: Extrude the billet

[0049] In a vacuum state, put the granulated mixture into the plunger extruder of the flat extrusion barrel for extrusion, and the constant temperature oven set in the extrusion barrel and the mold keeps the temperature at 70°C. The pressing speed ...

Embodiment 3

[0055] Step 1: Ingredients

[0056]In the mixture of beryllium powder and aluminum powder, the mass percentage of beryllium is 60%, the rest is aluminum, the plasticizer is paraffin, and the mixture of beryllium powder and aluminum powder and plasticizer are mixed evenly under vacuum according to the ratio of 50:8, Obtain mixed raw materials, wherein the metal powder particle size is 350 mesh;

[0057] Step 2: Mixing

[0058] The mixed raw materials are vacuum mixed in a vacuum mixing granulator, the mixing temperature is 80°C, and the mixing time is 200min. After mixing, the vacuum mixing granulator performs granulation, and the particle size after granulation is 30mm. , the length is 20mm;

[0059] Step 3: Extrude the billet

[0060] In a vacuum state, put the granulated mixture into the plunger extruder of the flat extrusion cylinder for extrusion, and the constant temperature oven set in the extrusion cylinder and the mold keeps the temperature at 80 ° C. The pressing ...

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Abstract

The invention discloses a plasticizing extrusion-forming preparation method for a deformable beryllium aluminum alloy plate. The plasticizing extrusion-forming preparation method for the deformable beryllium aluminum alloy plate comprise the steps of material proportioning, mixing, extruding and blank discharging, degreasing and rolling. By adoption of the preparation method, the problems of specific gravity segregation, composition segregation and the like of the deformable beryllium aluminum alloy plate are solved, and the problem of non-uniformity of beryllium aluminum alloy on the microscale is also solved; and the beryllium aluminum alloy blank which is compact in structure and good in performance is obtained, and the subsequent plastic deformation capacity of the beryllium aluminum alloy blank can be improved easily.

Description

technical field [0001] The invention relates to the field of metal material processing technology, in particular to a method for preparing a deformed beryllium aluminum alloy plate by plasticizing and extruding. Background technique [0002] Beryllium aluminum alloy has the characteristics of light weight, high specific strength, high specific stiffness, good thermal stability, high toughness, and corrosion resistance. It combines the low density of beryllium and the ease of processing of aluminum. It has been widely used in industry, automobile industry and other fields. [0003] At present, there are three main production processes for beryllium aluminum alloy sheets. The first method is traditional ingot casting and rolling deformation. Pour the molten beryllium aluminum alloy into an alumina crucible, and obtain a solid ingot after cooling. After removing the surface oxide skin, roll and deform to obtain a beryllium aluminum alloy plate. Conventional casting During the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22C28/00C22F1/04C22F1/16B22F3/20
CPCB22F3/20B22F2003/208C22C21/00C22C28/00C22F1/04C22F1/16
Inventor 刘楚明朱戴博韩坦
Owner KINKOU SUZHOU COPPER IND CO LTD
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