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A static magnetic field cryogenic treatment method for improving the strength and toughness of copper or copper alloy

A cryogenic treatment, copper alloy technology, applied in the field of material strengthening and toughening treatment, to achieve the effect of improving strength and toughness, high market economic benefits, and refining grains

Inactive Publication Date: 2019-01-08
常熟市通华金属材料销售有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems existing in the toughening treatment of copper and copper alloy products at present, and propose a method for toughening treatment of copper and copper alloy products after precision machining; without affecting the alloy composition, product size and structure , Improve the strength and toughness of copper and copper alloys without the need for secondary finishing

Method used

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  • A static magnetic field cryogenic treatment method for improving the strength and toughness of copper or copper alloy
  • A static magnetic field cryogenic treatment method for improving the strength and toughness of copper or copper alloy
  • A static magnetic field cryogenic treatment method for improving the strength and toughness of copper or copper alloy

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Effect test

example 1

[0022] Static magnetic field cryogenic treatment of example 1 aluminum bronze

[0023] The composition of the aluminum bronze alloy used in this implementation is shown in Table 1. The sample is processed into a light and thin sheet tensile sample of 45mm×5mm×2mm by wire cutting. The parameters and results of the embodiment are shown in Table 2.

[0024] Table 1 Aluminum Bronze Alloy Composition

[0025] element

Al

Zn

mn

Fe

Pb

Si

Cu

content(%)

8.0-10.0

0-1.0

0-0.5

2.0-4.0

0-0.01

0-0.1

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[0026] Table 2 Test results of static magnetic field cryogenic treatment of aluminum bronze

[0027]

[0028]

[0029] It can be seen from Table 2 that the strength and toughness of aluminum bronze can be significantly improved by cryogenic treatment under a static magnetic field; the tensile strength is increased by 2.6% to 7.1%, and the elongation is increased by 11.6% to 44.2%.

example 2

[0030] Static magnetic field cryogenic treatment of example 2 aluminum brass

[0031] The composition of the aluminum bronze alloy used in this implementation is shown in Table 3. The sample is processed into a 45mm×20mm×20mm thick plate sample by wire cutting. The parameters and results of the embodiment are shown in Table 4.

[0032] Table 3 Aluminum Brass Alloy Composition

[0033] element

Cu

sn

mn

Al

Fe

Pb

Zn

content(%)

64.0-68.0

0-0.2

1.5-2.5

6.0-7.0

2.0-4.0

0-0.5

margin

[0034] Table 4 Test results of static magnetic field cryogenic treatment of aluminum brass

[0035]

[0036] It can be seen from Table 4 that the strength and toughness of aluminum brass can be significantly improved by cryogenic treatment under a static magnetic field; the tensile strength is increased by 4.6% to 8.1%, and the elongation is increased by 10.6% to 46.8%.

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Abstract

The invention relates to a material strengthening and toughening treatment method, belongs to the field of material thermal treatment and provides a method for improving the strength and toughness of copper or copper alloy and copper or copper alloy products. Copper and copper alloy are subjected to physical field modification treatment through a cryogenic and static magnetic field coupled technique, and on the basis of keeping original dimensions and constitutions of materials unchanged, the strength and toughness of the copper and the copper alloy are improved by adjusting a micro-alloy pipe texture structure.

Description

technical field [0001] The invention relates to a material strengthening and toughening treatment method, which belongs to the field of material heat treatment, and specifically relates to a treatment method for improving the strength and toughness of copper and copper alloys and their products by coupling a static magnetic field and a cryogenic field. Background technique [0002] Cryogenic treatment has the characteristics of stable material size, improved uniformity, reduced deformation, no pollution, and low cost. It has made great progress in the modification of materials. However, most of the domestic cryogenic processes are currently used for steel materials. This has a significant effect on improving the wear resistance, hardness, dimensional stability and other properties of high-speed steel, bearing steel, die steel and other materials; the application of magnetic field treatment in metal materials is currently mainly concentrated in the smelting process, and the us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22F1/08C22F3/00
CPCC22F1/08C22F3/00
Inventor 王宏明储强泽李桂荣
Owner 常熟市通华金属材料销售有限公司