Manufacturing method of complex copper-zinc alloy shell

A manufacturing method and technology of zinc alloy, applied in the field of heat dissipation shell, can solve the problems affecting the bending and machinability of the alloy, and achieve the effect of improving stability, strength, toughness, and simple process operation and equipment requirements.

Inactive Publication Date: 2012-08-08
朱春来
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] A small amount of multi-component strengthening is a way to improve the performance of alloys. However, since the α-phase and β-phase in special copper-zinc alloys are multi-component complex solid solutions, plus the possible γ-phase, a small amount of elements exist at the same time. On the one hand, it may improve the corrosion resistance and strength properties of the alloy, on the other hand, it will increase the brittleness of the material and affect the bending and machinability of the alloy.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1) To obtain materials, select raw materials with the following chemical composition weight percentages:

[0026] Zn: 28%, C: 0.02%;

[0027] Mn: 2.1%; Si: 0.15%,

[0028] Nb: 0.04%, Ti: 0.02%,

[0029] V: 0.05%, Mo: 0.1%,

[0030] Cr: 0.55%, Al: 0.06%

[0031] The rest is Cu and impurities;

[0032] 2) Melting the above materials in a 5t bell-type resistance furnace, degassing and removing slag during the melting process, so as to carry out high-cleanliness refining;

[0033] 3) the mold for casting the shell;

[0034] 4) Uniform annealing at about 440°C for 24 hours.

[0035] The mechanical properties of the prepared heat dissipation shell were tested on the CMT5105 electronic universal testing machine, and the fracture toughness experiment was carried out on the MTS material experiment technology. After testing, the heat dissipation shell made of complex copper-zinc alloy with special heat dissipation requirements prepared by the present invention has a yield ...

Embodiment 2

[0038] 1) To obtain materials, select raw materials with the following chemical composition weight percentages:

[0039] Zn: 30%, C: 0.03%;

[0040] Mn: 2.3%; Si: 0.20%,

[0041] Nb: 0.06%, Ti: 0.04%,

[0042] V: 0.09%, Mo: 0.4%,

[0043] Cr: 0.65%, Al: 0.10%

[0044] The rest is Cu and impurities;

[0045] 2) Melting the above materials in a 5t bell-type resistance furnace, degassing and removing slag during the melting process, so as to carry out high-cleanliness refining;

[0046] 3) the mold for casting the shell;

[0047] 4) Uniform annealing at about 460°C for 24 hours.

[0048] The mechanical properties of the prepared heat dissipation shell were tested on the CMT5105 electronic universal testing machine, and the fracture toughness experiment was carried out on the MTS material experiment technology. After testing, the heat dissipation shell made of complex copper-zinc alloy with special heat dissipation requirements prepared by the present invention has a yield ...

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Abstract

The present invention relates to a manufacturing method of a complex copper-zinc alloy shell. The method comprises the following steps: 1) sampling: selecting a certain ratio of Zn, C, Mn, Si, Nb, Ti, V, Mo, Cr, Al and Cu; 2) placing the materials in a 5t cover-type resistance furnace for smelting with gas and slag removal, thus carrying out refining with high cleanliness; 3) moulding a shell; 4) carrying out homogeneous annealing treatment for 24 h at of 440 to 460 DEG C. The invention is characterized in that the method optimizes composition of complex copper zinc alloy through experiment and combines with a heat treatment technology, so as to further refine crystal grains and distribution morphology of the second phase of the Cu-Zn alloy, improve stability, strength and toughness of the alloy, and in that the process operation and equipment requirement are simple.

Description

technical field [0001] The invention relates to a heat dissipation shell, in particular to a manufacturing method of a heat dissipation shell made of complex copper-zinc alloy with special heat dissipation requirements. [0002] Background technique [0003] In the existing technology, various projects and workplaces are inseparable from automation equipment. Some special occasions have strict requirements on the temperature of the equipment during work. Material: Copper has very high thermal conductivity, but the reserves of copper are limited, and the price has been rising in recent years, which increases the production cost. Therefore, in actual production, copper-zinc alloy is often used as a substitute. [0004] Ordinary copper-zinc alloys are based on copper, with zinc as the main additive element. They have a beautiful yellow color. Copper-zinc alloys also have good heat dissipation performance. Compared with pure Cu, they are cheaper and have certain mechanical pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/04C22F1/08
Inventor 朱春来
Owner 朱春来
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