Preparation method of copper-chrome alloy

A copper-chromium alloy and charging technology, which is applied in the field of alloy material preparation, can solve the problems of high requirements on process parameters such as operating temperature, can not effectively meet energy saving requirements, and high energy consumption, and achieves reduction in the number of pores and heat loss. good quality effect

Inactive Publication Date: 2013-05-22
SHENZHEN YUANSIDACHENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology simplifies making certain metals with specific properties while minimizing their production costs compared to existing methods that involve expensive processes like melting or casting techniques. It achieves this through simplified reactions between different ingredients at once without requiring much laborious work on scale up. Additionally, it provides smooth responses and control over safe operations during experimentations. Overall, these technical benefits make producing highly pure alloys more efficient than current technologies.

Problems solved by technology

Technological Problem: Current methods for making copper or chromium oxide (C) alloy composites involve expensive special techniques such as evacuated pressure plasma sputter fusion technique and liquid phase separation after pyroplasening. These technical problem addressed in these publications include excessive heat lost during the process, difficulty in obtaining consistency from partial failures, complicated procedures requiring extra machining tools, long lead times, and poor quality control over resulting products.

Method used

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  • Preparation method of copper-chrome alloy
  • Preparation method of copper-chrome alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Clean and assemble the charged graphite mold and forming mold, put the baffle into the bottom of the graphite mold, and then preheat the mold, the preheating temperature is 200-300°C, and the preheating time is about 15 minutes.

[0034] The raw materials were weighed, among which aluminum powder (200 mesh), chromium trioxide (200 mesh) and 55% copper oxide (100 mesh) were all industrial grade. Magnesium Sulfate (MgSO 4 ) can not only provide heat, but also have a slagging effect, and the slagging agent is selected as calcium fluoride (CaF 2 ); Raw material weight ratio is (Wt%):

[0035]

[0036] First put the material of layer A into the mixer, and the mixing time is 3 minutes. Since the mixing process is easy to generate heat, in order to ensure that the heat in this process is fully dissipated and the operation safety is improved, the mixer is kept in an intermittent working state. , that is, mixing for about 15 seconds, stopping for about 10 seconds, mixing fo...

Embodiment 2

[0038] Clean and assemble the charged graphite mold and forming mold, put the baffle into the bottom of the graphite mold, and then preheat the mold, the preheating temperature is 200-300°C, and the preheating time is about 15 minutes.

[0039] The raw materials were weighed, wherein aluminum powder, chromium trioxide and 55% copper oxide were all industrial grades. Magnesium Sulfate (MgSO 4 ) can not only provide heat, but also have a slagging effect, and the slagging agent is selected as calcium fluoride (CaF 2 ); Raw material weight ratio is (Wt%):

[0040]

[0041]First put the material of layer A into the mixer, and the mixing time is 3 minutes. Since the mixing process is easy to generate heat, in order to ensure that the heat in this process is fully dissipated and the operation safety is improved, the mixer is kept in an intermittent working state. , that is, mixing for about 15 seconds, stopping for about 10 seconds, mixing for about 15 seconds, stopping for 10 s...

Embodiment 3

[0043] Clean and assemble the charged graphite mold and forming mold, put the baffle into the bottom of the graphite mold, and then preheat the mold, the preheating temperature is 200-300°C, and the preheating time is about 15 minutes.

[0044] The raw materials were weighed, wherein aluminum powder, chromium trioxide and 55% copper oxide were all industrial grades. Magnesium Sulfate (MgSO 4 ) can not only provide heat, but also have a slagging effect, and the slagging agent is selected as calcium fluoride (CaF 2 ); Raw material weight ratio is (Wt%):

[0045]

[0046] First put the material of layer A into the mixer, and the mixing time is 3 minutes. Since the mixing process is easy to generate heat, in order to ensure that the heat in this process is fully dissipated and the operation safety is improved, the mixer is kept in an intermittent working state. , that is, mixing for about 15 seconds, stopping for about 10 seconds, mixing for about 15 seconds, stopping for 10 ...

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Abstract

The invention discloses a preparation method of copper-chrome alloy, and belongs to the technical field of the preparation of alloy material. In the method, 55% CuO, Cr2O3 and aluminum powder are taken as main raw materials. The preparation method comprises the following steps of: adding MgSO4 and CaF2; adopting a material laminated self-propagating reaction technology, wherein A layer is the mixed materials of CuO, Cr2O3, aluminum powder and CaF2 and the mixed materials are added on the bottom layer of a reaction mould, B layer is the mixture of MgSO4, Al and CaF2 and the mixture is added on the A layer materials, and an igniting agent is added on the B layer material; and adopting an aluminothermic reducing method to obtain copper-chrome (Cu-Cr) alloy. According to the preparation method, the raw material source is wide, the production cost is low, the operation method is simple, and the product quality is greatly improved.

Description

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Claims

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Application Information

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Owner SHENZHEN YUANSIDACHENG TECH
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