阅读说明：本技术 铜基多元合金的加工方法 (Processing method of copper-based multi-element alloy ) 是由 孙俊杰 于 2020-07-03 设计创作，主要内容包括：本发明公开了铜基多元合金的加工方法,包括以下步骤：准备铜粉、铁粉、铬粉、硒粉以及铝粉,并且将其按照一定的质量分数进行配比混合得到混合粉末；将混合粉末置于容器中,并且将其加热至1100℃～1200℃使其熔化得到混合液,然后再将其浇铸至模腔中冷却至室温取出；对从模具中取出的合金铸件进行破碎以及粉碎处理得到铜基合金粉末,并且向铜基合金粉末中添加钛粉得到混合物料；将混合物料置于浓度大于99％的无水乙醇溶液中,并且采用电磁搅拌复合对混合物料进行分散处理,得到悬浮液；向悬浮液内部添加石墨烯,并且再次采用电磁搅拌复合对其进行分散处理,得到混合浆料。本发明易于操控,有助于生产高效的铜基多元合金材料。(The invention discloses a processing method of a copper-based multi-element alloy, which comprises the following steps: preparing copper powder, iron powder, chromium powder, selenium powder and aluminum powder, and mixing the copper powder, the iron powder, the chromium powder, the selenium powder and the aluminum powder according to a certain mass fraction to obtain mixed powder; placing the mixed powder in a container, heating the mixed powder to 1100-1200 ℃ to melt the mixed powder to obtain a mixed solution, then casting the mixed solution into a mold cavity, cooling the mold cavity to room temperature, and taking out the mold cavity; crushing and crushing the alloy casting taken out of the die to obtain copper-based alloy powder, and adding titanium powder into the copper-based alloy powder to obtain a mixed material; placing the mixed material in an absolute ethyl alcohol solution with the concentration of more than 99%, and performing dispersion treatment on the mixed material by adopting electromagnetic stirring compounding to obtain a suspension; and adding graphene into the suspension, and dispersing the suspension again by adopting electromagnetic stirring compounding to obtain mixed slurry. The invention is easy to control and is beneficial to producing high-efficiency copper-based multi-element alloy materials.)

1. The processing method of the copper-based multi-element alloy is characterized by comprising the following steps of:

s1: preparing copper powder, iron powder, chromium powder, selenium powder and aluminum powder, and mixing the copper powder, the iron powder, the chromium powder, the selenium powder and the aluminum powder according to a certain mass fraction to obtain mixed powder;

s2: placing the mixed powder in a container, heating the mixed powder to 1100-1200 ℃ to melt the mixed powder to obtain a mixed solution, then casting the mixed solution into a mold cavity, cooling the mold cavity to room temperature, and taking out the mold cavity;

s3: crushing and crushing the alloy casting taken out of the die to obtain copper-based alloy powder, and adding titanium powder into the copper-based alloy powder to obtain a mixed material;

s4: placing the mixed material in an absolute ethyl alcohol solution with the concentration of more than 99%, and performing dispersion treatment on the mixed material by adopting electromagnetic stirring compounding to obtain a suspension;

s5: adding graphene into the suspension, dispersing the suspension again by adopting electromagnetic stirring compounding to obtain mixed slurry, and drying the mixed slurry to obtain composite powder, wherein the drying temperature is 80-140 ℃;

s6: and heating and melting the composite powder again to obtain a mixed solution, casting the mixed solution into a mold cavity to obtain the copper-based multi-element alloy containing graphene, then placing the copper-based multi-element alloy on a cubic press to perform high-pressure aging treatment, wherein the pressure is 3-5 GPa, the heating temperature is 450-600 ℃, the heat preservation time is 1-2 h, and the copper-based multi-element alloy is prepared by cutting off the power, releasing the pressure and cooling to room temperature.

2. The processing method of the copper-based multi-component alloy as claimed in claim 1, wherein the mass fraction ratio of the copper powder, the iron powder, the chromium powder, the selenium powder and the aluminum powder in S1 is chromium: 0.52%, selenium: 0.78%, aluminum: 0.35%, iron: 0.29%, the balance being copper and unavoidable impurities.

3. The method for processing the copper-based multi-component alloy according to claim 1, wherein the mixed solution is subjected to heat preservation for 10 to 15min after the melting in the step S2.

4. The method for processing the copper-based multi-component alloy as claimed in claim 1, wherein the S4 and S5 can be assisted by ultrasonic vibration to disperse the mixed materials.

5. The processing method of the copper-based multi-component alloy according to claim 4, wherein the time of the ultrasonic vibration assisted dispersion treatment is 0.5h to 1 h.

Technical Field

The invention relates to the technical field of multi-element alloys, in particular to a processing method of a copper-based multi-element alloy.

Background

The multicomponent alloy refers to an alloy formed by more than two components. Such as Fe-Cr-Al alloy, Ni-Cr-Mo alloy, Fe-Cr-Ni-Mo alloy, etc.

The copper alloy is formed by adding one or more other elements into pure copper serving as a matrix, and has excellent electrical conductivity, thermal conductivity, ductility and corrosion resistance. The method is mainly used for manufacturing electrical equipment such as a generator, a bus, a cable, a switching device and a transformer, and heat-conducting equipment such as a heat exchanger, a pipeline and a flat plate collector of a solar heating device. Commonly used copper alloys are divided into three main categories of brass, bronze and cupronickel. When the copper-based multi-component alloy is processed and manufactured, because the alloy components of the copper-based multi-component alloy are adjusted simply for improving the alloy strength, but the conductivity and the heat conductivity of the copper alloy are also influenced, the advantages of the copper alloy are reduced, and therefore, a processing method of the copper-based multi-component alloy is designed for solving the problems.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a processing method of a copper-based multi-component alloy.

In order to achieve the purpose, the invention adopts the following technical scheme:

the processing method of the copper-based multi-element alloy comprises the following steps:

s1: preparing copper powder, iron powder, chromium powder, selenium powder and aluminum powder, and mixing the copper powder, the iron powder, the chromium powder, the selenium powder and the aluminum powder according to a certain mass fraction to obtain mixed powder;

s2: placing the mixed powder in a container, heating the mixed powder to 1100-1200 ℃ to melt the mixed powder to obtain a mixed solution, then casting the mixed solution into a mold cavity, cooling the mold cavity to room temperature, and taking out the mold cavity;

s3: crushing and crushing the alloy casting taken out of the die to obtain copper-based alloy powder, and adding titanium powder into the copper-based alloy powder to obtain a mixed material;

s4: placing the mixed material in an absolute ethyl alcohol solution with the concentration of more than 99%, and performing dispersion treatment on the mixed material by adopting electromagnetic stirring compounding to obtain a suspension;

s5: adding graphene into the suspension, dispersing the suspension again by adopting electromagnetic stirring compounding to obtain mixed slurry, and drying the mixed slurry to obtain composite powder, wherein the drying temperature is 80-140 ℃;

s6: and heating and melting the composite powder again to obtain a mixed solution, casting the mixed solution into a mold cavity to obtain the copper-based multi-element alloy containing graphene, then placing the copper-based multi-element alloy on a cubic press to perform high-pressure aging treatment, wherein the pressure is 3-5 GPa, the heating temperature is 450-600 ℃, the heat preservation time is 1-2 h, and the copper-based multi-element alloy is prepared by cutting off the power, releasing the pressure and cooling to room temperature.

Preferably, the mass fraction ratio of the copper powder, the iron powder, the chromium powder, the selenium powder and the aluminum powder in the step S1 is chromium: 0.52%, selenium: 0.78%, aluminum: 0.35%, iron: 0.29%, the balance being copper and unavoidable impurities.

Preferably, in the step S2, the mixed solution is subjected to heat preservation for 10 to 15min after melting.

Preferably, the dispersing treatment of the mixed materials in the S4 and S5 can be assisted by ultrasonic vibration.

Preferably, the time of the ultrasonic vibration assisted dispersion treatment is 0.5 h-1 h.

Compared with the prior art, the invention has the beneficial effects that:

according to the processing method of the copper-based multi-element alloy, the graphene is added into the copper-based multi-element alloy, so that the conductivity and the strength of the copper-based multi-element alloy can be effectively improved, the graphene can be uniformly dispersed in the copper-based multi-element alloy through electromagnetic stirring compounding and ultrasonic vibration assisted dispersion treatment, the graphene-reinforced copper-based multi-element alloy composite material with uniform tissue and stable mechanical property can be obtained, and the method is simple to operate, easy to control and beneficial to production of efficient copper-based multi-element alloy materials.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.