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A kind of method for preparing copper-iron double metal composite material

A technology of copper-iron bimetallic and composite materials, which is applied in the field of bimetallic composite material preparation, can solve problems such as insufficient yield and bonding strength, uneasy control, complex preparation process, etc., and achieve low cost, simple preparation process and high efficiency Effect

Active Publication Date: 2018-08-21
INST OF APPLIED PHYSICS JIANGXI ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Casting composite technologies such as solid-liquid casting require surface cleaning of the solid phase, solution spraying purification treatment, and subsequent temperature control of the solid-liquid phase combination. The preparation process is complex and difficult to control. Because it is solid-liquid casting, its yield and bonding strength are still not stable enough

Method used

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  • A kind of method for preparing copper-iron double metal composite material
  • A kind of method for preparing copper-iron double metal composite material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Ingredients: The chemical composition of the material is taken according to the mass percentage: iron 10, carbon 0.02, and the rest is copper. The raw materials are iron-carbon master alloy and electrolytic copper. The addition of various raw materials is calculated according to the conventional alloy batching method, and trace carbon is added. get the ingredients;

[0021] (2) Melting: Put the prepared ingredients into the medium frequency electromagnetic induction furnace, and melt for 30 minutes according to the conventional copper alloy smelting process;

[0022] (3) Pouring: pour the molten metal into the steel mold of the centrifugal casting machine, such as figure 2 shown;

[0023] (4) Centrifugal casting: during the solidification process of the ingot, the speed of the centrifuge is 600rpm;

[0024] (5) Hot rolling: put the above ingot into a heat treatment furnace, heat it to 700°C, keep it warm for 100 minutes, and then hot roll it on a conventional rol...

Embodiment 2

[0027] (1) Ingredients: The chemical composition of the material is taken according to the mass percentage: iron 30, carbon 0.08, and the rest is copper. The raw materials are pure iron, charcoal and electrolytic copper. The addition of various raw materials is calculated according to the conventional alloy ingredient method to obtain the ingredient;

[0028] (2) Melting: Put the prepared ingredients into the medium frequency electromagnetic induction furnace and melt for 35 minutes according to the conventional copper alloy smelting process;

[0029] (3) Pouring: pour the molten metal into the graphite mold of the centrifugal casting machine;

[0030] (4) Centrifugal casting: during the solidification process of the ingot, the speed of the centrifuge is 750rpm;

[0031] (5) Hot rolling: Put the above ingot into a heat treatment furnace, heat it to 950°C, keep it warm for 120 minutes, and then hot roll it on a conventional rolling mill to achieve a deformation of 40%;

[0032...

Embodiment 3

[0034] (1) Ingredients: The chemical composition of the material is taken according to the mass percentage: iron 50, carbon 0.2, and the rest is copper. The raw materials are iron-carbon master alloy and electrolytic copper. The addition of various raw materials is calculated according to the conventional alloy ingredient method to obtain the ingredient;

[0035] (2) Melting: Put the prepared ingredients into the medium frequency electromagnetic induction furnace, and melt for 40 minutes according to the conventional copper alloy smelting process;

[0036] (3) Pouring: pour the molten metal into the steel mold of the centrifugal casting machine;

[0037] (4) Centrifugal casting: during the solidification process of the ingot, the speed of the centrifuge is 900rpm;

[0038] (5) Hot forging: Put the above ingot into a heat treatment furnace, heat it to 1000°C, keep it warm for 160 minutes, and then hot forge it on a conventional forging press to achieve a deformation of 40%;

...

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Abstract

The invention discloses a method for preparing a copper iron bimetal composite. The method is characterized in that the copper iron bimetal composite comprises the following components by mass percent: 5.0 to 91.2% of iron and 0.01 to 1.00% of carbon, and the balance being copper and impurities; through adding a trace amount of carbon, a blended material generates copper-rich phases and rich-iron phases after melting and achieves liquid phase separation; and then, the copper iron bimetal composite which has copper in the outer layer and iron in the inner layer and has a metallurgical bonding interface is obtained through a centrifugal casting method. According to the method, the fact that copper and iron have liquid phase immiscible zones in certain component range is utilized, and a trace amount of carbon is added, so that the liquid phase immiscible zones of copper and iron can be effectively enlarged, a copper iron alloy forms the copper-rich phases and the rich-iron phases after melting and achieves the liquid phase separation characteristic, and the copper iron bimetal composite is obtained after blending; and the preparation technology is simple, the efficiency is high, and the cost is low.

Description

technical field [0001] The invention relates to a method for preparing a copper-iron bimetallic composite material, belonging to the technical field of bimetallic composite material preparation. Background technique [0002] The inner layer of copper-iron bimetallic composite material is iron or low-carbon alloy steel, and the outer cladding material is copper or copper alloy. It not only has the characteristics of high conductivity, corrosion resistance and good weldability of copper, but also has the characteristics of high strength and high With the advantages of rigidity and low cost, it has broad application prospects in the fields of automobile, aviation, shipbuilding, metallurgy and mining and other mechanical parts manufacturing. [0003] At present, the preparation technologies of bimetallic composite materials mainly include welding composite technologies such as electron beam welding, solid-phase composite technologies such as diffusion composite, rolling composit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D13/00C22C9/00C22C38/16
CPCB22D13/00C22C9/00C22C38/16
Inventor 陆德平陆磊刘克明姜江郭炜廖先金邹晋周喆付青峰
Owner INST OF APPLIED PHYSICS JIANGXI ACADEMY OF SCI