Carbon fiber reinforced copper-based composite material and preparation method thereof

A technology of copper-based composite materials and carbon fiber, which is applied in the field of preparation of copper-based composite materials, can solve problems such as less research, achieve excellent wear resistance and mechanical properties, excellent self-lubricating properties, and improve mechanical properties.

Active Publication Date: 2015-03-04
宁波新睦科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the previous research work, the attention was mainly focused on light metal matrix composites such as aluminum matrix and magnesium matrix, and there were relatively few studies on copper matrix composites.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1 prepares the graphite powder of copper plating

[0033] Prepare raw materials: 50kg of artificial graphite powder, the plating ratio of copper plating is 0.5, and the calculated mass of copper plating is 25kg. The particle size of the artificial graphite powder is 50um.

[0034] The copper salt solution is prepared from copper sulfate pentahydrate. The copper salt solution is added in the form of copper salt acid solution; that is, a certain amount of glacial acetic acid is added to the copper salt solution to prepare a copper hydrochloric acid solution with a specific pH value. Among them, the pH value of 4 is called copper sulfate pentahydrate solution A, and the pH value of 6 is called copper sulfate pentahydrate solution B.

[0035] Copper plating is performed using the following steps, including:

[0036] (a), add alcohol and mix graphite powder and iron powder into a mixture, the particle size of iron powder is more than 250 mesh, its addition is d...

Embodiment 2

[0042] Embodiment 2 adopts electroless plating technology to make carbon fiber surface coating nickel layer

[0043] Adopt electroless plating technology to make described carbon fiber surface coating nickel layer, the specific steps of described carbon fiber electroless plating are:

[0044] Step A pretreatment: put the carbon fiber in a muffle furnace for high-temperature burning, burn at 300°C for 30 minutes to remove the surface glue, put the glue-free carbon fiber in 10% NaOH solution, and stir at room temperature for 15 minutes The surface is degreased, washed repeatedly with deionized water until neutral, and dried at 80°C to constant weight; for roughening treatment, the degreased carbon fiber is placed in the roughening solution, and electromagnetically stirred at 30°C for 30 minutes ; The coarsening liquid composition is: 200g / L (NH 4 ) 2 S 2 o 8 (ammonium persulfate), 100ml / LH 2 SO 4 (density is 1.84g / cm 3 ), washed with deionized water to neutral after coarsen...

Embodiment 3

[0046] The preparation of the copper-based composite material reinforced by embodiment 3 carbon fibers

[0047] The preparation method of the copper-based composite material reinforced by carbon fiber comprises the following steps successively:

[0048] Step 1, take the batching of following parts by weight: 10 parts of graphite powder (prepared in Example 1), 10 parts of carbon nanotubes, 2.5 parts of carbon fibers (prepared in Example 2), 1.2 parts of nickel powder, 1.5 parts of Fe powder and 200 parts of copper powder; the nickel powder particle size is 150-200 mesh, the Fe powder particle size is 250-300 mesh, and the copper powder particle size is 150-200 mesh; then add The lubricant of 3 parts by weight is mixed by ball milling, and the mixing time is 3 hours; the mixture is obtained;

[0049] Step 2, pressing the mixture prepared in the step 1 under a pressure of 700Mpa; obtaining a blank;

[0050] Step 3. Carry out the second-stage sintering of the blank prepared in ...

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Abstract

The invention discloses a preparation method of a carbon fiber reinforced copper-based composite material. The preparation method comprises the following steps: I, weighing ingredients and carrying out ball-milling mixing for 3 hours, thereby obtaining a mixed material, and wrapping the surface of carbon fiber by a nickel layer, wherein the particle size of graphite powder is 50mu m, the graphite powder is subjected to chemical plating technical treatment, and a copper layer is plated on the surface of the graphite powder; II, pressing the mixed material prepared in the step I under the pressure of 700MPa, thereby obtaining a blank; III, performing secondary sintering on the blank prepared in the step II, thereby obtaining a sintered alloy block; and IV, performing thermal treatment on the alloy block treated in the step III, thereby obtaining the carbon fiber reinforced copper-based composite material. The carbon fiber reinforced copper-based composite material disclosed by the invention not only has excellent self-lubrication property, but also is particularly excellent in wearing resistance and mechanical property.

Description

technical field [0001] The invention belongs to the technical field of copper-based composite material preparation, and in particular relates to a method for preparing a carbon fiber-reinforced copper-based composite material. Background technique [0002] With the advancement of science, the importance of materials in the industrial field has become more and more prominent, and it is difficult for a single material to meet the requirements. However, composite materials have the advantages of high strength, high elastic modulus, and low density, and have been paid more and more attention in industrial production. application. Among them, metal matrix composites have attracted much attention. However, in the previous research work, the attention was mainly concentrated on light metal matrix composites such as aluminum matrix and magnesium matrix, and there were relatively few studies on copper matrix composites. Contents of the invention [0003] The technical problem to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C47/14C22C49/02C22C49/14C22C101/10C22C121/02
Inventor 姚国强
Owner 宁波新睦科技有限公司
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