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A method for preparing high solid-solubility copper-tin-titanium alloy assisted by electric pulse

A technology of electric pulse and titanium alloy, which is applied in the field of electric pulse-assisted preparation of copper-tin-titanium alloy with high solid solubility, can solve the problems of low solid solubility, coarse grains of copper-tin alloy, etc., and achieve low solid solubility, Effects of inhibiting growth and improving plasticity

Active Publication Date: 2019-06-18
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for preparing copper-tin-titanium alloy with high solid solubility assisted by electric pulses, which solves the problems of low solid solubility of tin in cast copper-tin alloy and coarse crystal grains of copper-tin alloy

Method used

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  • A method for preparing high solid-solubility copper-tin-titanium alloy assisted by electric pulse
  • A method for preparing high solid-solubility copper-tin-titanium alloy assisted by electric pulse
  • A method for preparing high solid-solubility copper-tin-titanium alloy assisted by electric pulse

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Embodiment 1

[0030] A method for preparing high solid-solubility copper-tin-titanium alloy assisted by electric pulses, comprising the following steps:

[0031] Step 1, prepare a dense Cu-Sn-Ti alloy: mix copper powder, tin powder, and titanium powder in proportion to form a dense green body, and then place the green body in a crucible for heating. The heating process is carried out in an argon atmosphere Complete under protection, heat for 10 minutes, set the heating temperature to 700 ° C, and hold the temperature for 10 minutes to obtain a dense Cu-Sn-Ti alloy; wherein, the mass percentage of Sn in the prepared Cu-Sn-Ti alloy is 11%, The mass percentage of Ti is 0.1%, the rest is Cu, and the sum of the mass percentages of the above components is 100%;

[0032] Step 2, cold-rolling the Cu-Sn-Ti alloy prepared in step 1 into strips in a cold rolling mill model ZK-WS6 for subsequent electric pulse treatment;

[0033] Step 3, fix the rolled alloy on the clamping end of the THDM-2 electric ...

Embodiment 2

[0036] A method for preparing high solid-solubility copper-tin-titanium alloy assisted by electric pulses, comprising the following steps:

[0037] Step 1, prepare a dense Cu-Sn-Ti alloy: mix copper powder, tin powder, and titanium powder in proportion to form a dense green body, and then place the green body in a crucible for heating. The heating process is carried out in an argon atmosphere Complete under protection, heat for 10 minutes, set the heating temperature to 750 ° C, and hold the temperature for 15 minutes to obtain a dense Cu-Sn-Ti alloy; wherein, the mass percentage of Sn in the prepared Cu-Sn-Ti alloy is 13%, The mass percentage of Ti is 0.3%, the rest is Cu, and the sum of the mass percentages of the above components is 100%;

[0038] Step 2, cold-rolling the Cu-Sn-Ti alloy prepared in step 1 into strips in a cold rolling mill model ZK-WS6 for subsequent electric pulse treatment;

[0039] Step 3, fix the rolled alloy on the clamping end of the THDM-2 electric ...

Embodiment 3

[0042] A method for preparing high solid-solubility copper-tin-titanium alloy assisted by electric pulses, comprising the following steps:

[0043] Step 1, preparing a dense Cu-Sn-Ti alloy: mix copper powder, tin powder, and titanium powder in proportion to form a dense green body, and then place the green body in a crucible for heating. The heating process is carried out in an argon atmosphere Complete under protection, heat for 20 minutes, set the heating temperature to 900 ° C, and hold the temperature for 20 minutes to obtain a dense Cu-Sn-Ti alloy; wherein, the mass percentage of Sn in the prepared Cu-Sn-Ti alloy is 15%, The mass percentage of Ti is 0.8%, the rest is Cu, and the sum of the mass percentages of the above components is 100%;

[0044] Step 2, cold-rolling the Cu-Sn-Ti alloy prepared in step 1 into strips in a cold rolling mill model ZK-WS6 for subsequent electric pulse treatment;

[0045] Step 3, fix the rolled alloy on the clamping end of the THDM-2 electri...

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Abstract

The invention discloses a method for preparing a high-solid-solubility Cu-Sn-Ti alloy through assistance of electric pulses. The method comprises the following steps that 1, copper powder, tin powderand titanium powder are mixed and pressed for vacuum high-temperature sintering, and the Cu-Sn-Ti alloy is obtained; 2, the Cu-Sn-Ti alloy obtained in the step 1 is cold-rolled; 3, electric pulse treatment is conducted on the Cu-Sn-Ti alloy rolled in the step 2; and 4, the process from the step 2 to the step 3 is conducted two to three times repeatedly, and finally the high-solid-solubility Cu-Sn-Ti alloy is obtained. The preparation method has the following advantages that by conducting cold-rolling and electric pulse treatment repeatedly on the Cu-Sn-Ti alloy, a uniform tiny alloy structureis obtained; meanwhile, due to the electroplastic effect of the electric pulses, the plasticity of the alloy is also improved; and the method is easy to implement, and the refining effect of the alloystructure is remarkable.

Description

technical field [0001] The invention belongs to the technical field of copper alloy preparation, and in particular relates to a method for preparing high solid-solubility copper-tin-titanium alloy assisted by electric pulses. Background technique [0002] Copper-tin-titanium alloy (Cu-Sn-Ti alloy) as the current production of Nb 3 New composite materials for Sn superconducting materials, there have been researches and public reports at home and abroad to produce Nb 3 Insufficient and uneven distribution of Sn in the bronze matrix for Sn superconducting wire will reduce the superconducting performance of the produced wire. The addition of the Ti element improves the critical parameters of the produced superconducting wire by at least one order of magnitude, and the addition of Ti can maintain the original ductility of the production wire. Recent domestic reports on the preparation of Nb by tin core method 3 Ti is added in the Sn wire process, but the diffusion and segregat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/02C22C1/04C22F1/08C22F3/00
CPCC22C1/0425C22C9/02C22F1/08C22F3/00
Inventor 邹军涛冯巧丽梁淑华肖鹏石浩
Owner XIAN UNIV OF TECH