High-strength nanometer silicon carbide strengthening copper-based composite material and preparing method thereof

A technology of copper-based composite materials and nano-silicon carbide, which is applied in the field of high-strength nano-silicon carbide-reinforced copper-based composite materials, can solve the problems of short service life, large replacement costs, and low strength and hardness, and achieve hardness and strength performance. Effect of improving strength and improving mechanical properties

Inactive Publication Date: 2016-01-20
SUZHOU RICHMOND ADVANCED MATERIAL TECH TRANSFER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to its low strength and corresponding hardness, it has a short service life (about 3 years) in important gear accessories, which brings a large replacement cost

Method used

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  • High-strength nanometer silicon carbide strengthening copper-based composite material and preparing method thereof
  • High-strength nanometer silicon carbide strengthening copper-based composite material and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The high-strength nano-silicon carbide reinforced copper-based composite material for high-load impellers in Example 1 of the present invention is characterized in that it consists of the following components in volume percentage: nano-silicon carbide 1.2%, copper alloy ZCuSn 10 Zn 2 98.8%, wherein the nano-silicon carbide particle size is above 50 μm and below 200 μm.

[0029] The preparation method of the high-strength nano-silicon carbide reinforced copper-based composite material for the high-load impeller of the embodiment of the present invention 1 is characterized in that it has the following steps (such as figure 1 shown):

[0030] 1) Preparation of copper alloy ZCuSn 10 Zn 2 : put electrolytic copper, tin ingots, zinc, lead ingots, and nickel into the electric furnace for melting according to the weight ratio mentioned above, the liquid volume of the copper alloy during melting is less than 90% of the volume of the electric furnace; the melting temperature i...

Embodiment 2

[0036] The high-strength nano-silicon carbide reinforced copper-based composite material for high-load impellers in Example 2 of the present invention is characterized in that it consists of the following components in volume percentage: nano-silicon carbide 2.5%, copper alloy ZCuSn 10 Zn 2 97.5%, wherein the nano-silicon carbide particle size is above 50 μm and below 200 μm.

[0037] The preparation method of the high-strength nano-silicon carbide reinforced copper-based composite material for the high-load impeller of the embodiment of the present invention 2 is characterized in that it has the following steps (such as figure 1 shown):

[0038] 1) Preparation of copper alloy ZCuSn 10 Zn 2: put electrolytic copper, tin ingots, zinc, lead ingots, and nickel into the electric furnace for melting according to the weight ratio mentioned above, the liquid volume of the copper alloy during melting is less than 90% of the volume of the electric furnace; the melting temperature is...

Embodiment 3

[0044] The high-strength nano-silicon carbide reinforced copper-based composite material for high-load impellers in Example 3 of the present invention is characterized in that it consists of the following components in volume percentage: nano-silicon carbide 3.5%, copper alloy ZCuSn 10 Zn 2 96.5%, wherein the nano-silicon carbide particle size is above 50 μm and below 200 μm.

[0045] The preparation method of the high-strength nano-silicon carbide reinforced copper-based composite material for the high-load impeller of the embodiment of the present invention 3 is characterized in that it has the following steps (such as figure 1 shown):

[0046] 1) Preparation of copper alloy ZCuSn 10 Zn 2 : Put electrolytic copper, tin ingots, zinc, lead ingots, and nickel into the electric furnace for smelting according to the above-mentioned weight ratio, and the liquid volume of the copper alloy during smelting is less than 90% of the volume of the electric furnace; the melting tempera...

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Abstract

The invention relates to a high-strength nanometer silicon carbide strengthening copper-based composite material and a preparing method thereof. The high-strength nanometer silicon carbide strengthening copper-based composite material used for a high-load impeller is prepared from, by volume, 1.2-3.5% of nanometer silicon carbide and 96.5-98.8% of copper alloy ZCuSn10Zn2. Preparing of the high-strength nanometer silicon carbide strengthening copper-based composite material used for the high-load impeller includes the steps of stirring, smelting, casting and the like. According to the high-strength nanometer silicon carbide strengthening copper-based composite material used for the high-load impeller, the beneficial effects that the nanometer silicon carbide is high in hardness, good in wear resistance and self lubrication, high in heat conductivity, low in heat expansion coefficient, high in high-temperature strength and the like are utilized, the original corrosion resistance and machinable performance of the copper alloy ZCuSn10Zn2 can be ensured, meanwhile, the strength and hardness of the copper alloy ZCuSn10Zn2 are improved, and therefore the service life of the high-strength nanometer silicon carbide strengthening copper-based composite material in an important impeller accessory is prolonged.

Description

technical field [0001] The invention relates to a copper-based alloy composite material and a preparation method thereof, in particular to a high-strength nano-silicon carbide reinforced copper-based composite material for high-load impellers. Background technique [0002] National standard copper alloy ZCuSn 10 Zn 2 It is a commonly used tin bronze material. It has a series of advantages such as good casting performance, corrosion resistance, wear resistance and machinability, high casting compactness and good air tightness; therefore, it is mainly used in the manufacture of Important pipe fittings working under medium and high loads (15MPa) and small sliding speeds (3m / s), as well as valves, cocks, pump bodies, gears, impellers and worm gears, etc. Due to its low strength and corresponding hardness, it has a short service life (about 3 years) in important gear accessories, which brings a large replacement cost. In order to further improve the application life of this ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/02C22C1/02C22C1/10
Inventor 孙飞赵勇埃里克斯·高登
Owner SUZHOU RICHMOND ADVANCED MATERIAL TECH TRANSFER CO LTD
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