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Preparation method for aluminum copper alloy material

A technology of aluminum-copper alloy and aluminum alloy, which is applied in the field of alloy manufacturing to achieve the effects of excellent cutting performance, improved mechanical strength and good polishability

Inactive Publication Date: 2018-01-19
JIANGSU DOUSHENG TECH DEV 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 people with an aluminum-copper alloy with high strength, excellent plasticity, good fluidity and good heat treatment, machinability and polishability for the defects of existing aluminum alloy materials. Material preparation process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The present invention comprises the following steps:

[0018] (1) Casting:

[0019] First add 92 parts by weight of aluminum and 5.26 parts by weight of aluminum-titanium alloy, heat to 750°C to melt; then heat to 720°C, add 1 part by weight of copper and 0.67 parts by weight of boron-aluminum alloy; then add 0.06 parts by weight Refining agent for 20 minutes; then stand for 20 minutes and then cast;

[0020] (2) Heat treatment:

[0021] Put the semi-finished product cast in step (1) into a resistance furnace at a temperature of 530°C and heat it for 8 hours, then quench it with water at room temperature, cool it, then put it into a resistance furnace and heat it to 300°C for 4 hours, and then get an aluminum-copper alloy Material.

Embodiment 2

[0023] The present invention comprises the following steps:

[0024] (1) Casting:

[0025] First add 95 parts by weight of aluminum and 5 parts by weight of aluminum-titanium alloy, heat to 740°C to melt; then heat to 750°C, add 1-3 parts by weight of copper and 0.5 parts by weight of boron-aluminum alloy; then add 0.05 Refining 10 minutes of refining agent in parts by weight; Then after standing for 30 minutes of heat preservation, casting;

[0026] (2) Heat treatment:

[0027] Put the semi-finished product cast in step (1) into a resistance furnace at a temperature of 530°C and heat it for 8 hours, then quench it with water at room temperature and cool it, then put it into a resistance furnace and heat it to 370°C for 8 hours, and then get out of the furnace to get an aluminum-copper alloy Material.

Embodiment 3

[0029] The present invention comprises the following steps:

[0030] (1) Casting:

[0031] First add 93 parts by weight of aluminum and 4.26 parts by weight of aluminum-titanium alloy, heat to 730°C to melt; then heat to 755°C, add 1 part by weight of copper and 00.67 parts by weight of boron-aluminum alloy; then add 0.06 parts by weight The refining agent is refined for 10 minutes; then after standing for 30 minutes, casting is carried out;

[0032] (2) Heat treatment:

[0033] Put the semi-finished product cast in step (1) into a resistance furnace at a temperature of 530°C and heat it for 8 hours, then quench it with water at room temperature and cool it, then put it into a resistance furnace and heat it to 370°C for 8 hours, and then get out of the furnace to get an aluminum-copper alloy Material.

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Abstract

The invention discloses a preparation method for an aluminum copper alloy material. The aluminum copper alloy material prepared through the preparation process of the preparation method is high in strength, excellent in plasticity, good in fluidity and good in heat treatability, machinability and polishability. The aluminum copper alloy material prepared through the preparation method comprises 0.30-1.20 wt% of titanium, 0.03-0.10 wt% of silicon and 0.01-0.30 wt% of copper.

Description

technical field [0001] The invention belongs to the technical field of alloy manufacturing, and in particular relates to a method for preparing an aluminum-copper alloy material. Background technique [0002] Since copper has a large solid solubility in aluminum and changes with temperature, in aluminum-copper alloy materials, reduce the content of zinc and increase the content of copper to improve the mechanical strength through solid solution strengthening and aging strengthening; Adding magnesium to aluminum-copper alloy materials can improve machinability, and adding copper and magnesium to aluminum can form a strengthening phase, which can exert a strengthening effect during aging; in addition, adding an appropriate amount of titanium can obtain a significant effect of grain refinement , so that the aluminum-copper alloy material can obtain better performance. Contents of the invention [0003] The purpose of the present invention is to provide people with an aluminu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/03C22F1/04
Inventor 金传广尤汉春张春伟郑雷陈玉智徐晓洪刘兆诚
Owner JIANGSU DOUSHENG TECH DEV CO LTD
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