Copper alloy material of radiating fin of radiator

A technology of copper alloy and heat sink, which is applied in the field of copper alloy materials, can solve the problems of damage, wrinkles or cracks in the bent part, and achieve good heat resistance, reduce the tendency of intergranular corrosion, and excellent strength performance Effect

Inactive Publication Date: 2012-02-29
SUZHOU FANGJIYUAN ENERGY SAVING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] In addition, the strength is improved by the solid solution strength of Sn, and the wall thickness of the tube can be reduced when used in a heat transfer tube. Wrinkles or cracks are prone to occur in the part, and this part becomes the starting point and will be destroyed at a low strength that does not reach the expectation

Method used

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Embodiment Construction

[0025] The present invention will be further explained and described below in conjunction with specific embodiments.

[0026] According to the mass percentage shown in Table 1, the copper alloy material described in the present invention was prepared. The specific preparation process is as follows: heating the alloy raw materials of Sn, P, Zn, Ni, Co, Ti and Cu according to the above weight percentage ratio to 1180 ℃ for 150 min under nitrogen protection atmosphere; 0.5 wt% BaCl 2 , stirred for 55 min; then the alloy liquid was poured at 1200°C; then kept at 780°C for 5 h for homogenization, and cooled to obtain the copper alloy material. Table 1 Chemical composition of the base metal (the balance is Cu and unavoidable impurities)

[0027] Numbering sn P Ni Zn co Ti 1 0.5 0.50 1.2 2.2 0.5 0.3 2 0.6 0.05 1.8 3.0 1.6 0.5 3 0.7 0.06 2.4 3.8 0.7 0.7 4 0.8 0.06 3.0 4.6 0.8 0.8 5 0.9 0.07 3.6 5.5 0.9 0.9 6 ...

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Abstract

The invention relates to a copper alloy material of a radiating fin of a radiator. The copper alloy material comprises 0.5-1.2 wt% of Sn, 0.05-0.10 wt% of P, 2.2-8.5 wt% of Zn, 1.2-5.0 wt% of Ni, 0.5-1.2 wt% of Co, 0.3-1.2 wt% of Ti, and the balance Cu and avoidless impurities. The copper alloy material of the present invention, which has a good heat resistance, allows the excellent strength performance of the preparative copper alloy radiating fin of the radiator to be still maintained when the copper alloy radiating fin of the radiator is heated to a high temperature of 750DEG C; and the copper alloy material has an excellent processing performance, especially a cold working performance.

Description

technical field [0001] The invention relates to a copper alloy material, in particular the invention relates to a copper alloy material suitable for radiator fins, which has excellent corrosion resistance and good processability. Background technique [0002] Usually used for finned tube heat exchangers, it is a U-shaped copper tube (or copper alloy tube) that is bent into a thin pin shape, and the through hole of the heat sink made of aluminum or aluminum alloy plate is inserted into the copper tube expansion tool. The copper tube is expanded in the tube, thereby making the copper tube and the aluminum heat sink tightly bonded. In addition, the open end of the copper tube is expanded, and a curved copper tube bent into a U shape is inserted into the expanded tube to open. At the end, the bent copper tube is brazed to the expanded open end of the U-shaped copper tube with brazing material such as phosphor copper, thereby connecting multiple U-shaped copper tubes through the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/04F28F21/08
Inventor 杨贻方
Owner SUZHOU FANGJIYUAN ENERGY SAVING TECH
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