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A kind of metamorphic treatment method of zinc alloy

A technology of modification treatment and zinc alloy, applied in the field of modification treatment of zinc alloy, can solve the problems of poor creep resistance and dimensional change, and achieve the effect of reducing creep rate and improving creep resistance.

Inactive Publication Date: 2017-07-21
广州市奇诺五金有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Zinc alloy has good mechanical properties, wear resistance and anti-friction properties, and can be used to replace some copper alloys or even aluminum alloys, but its disadvantage is that it has poor creep resistance and is prone to dimensional changes caused by natural aging.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] (1) Ingredients: by weight percentage: aluminum 3.8%, copper 2.7%, magnesium 0.035%, strontium 0.05%, the weight ratio of germanium to strontium = 0.5:1, and the balance is zinc for ingredients;

[0013] (2) Place the prepared raw materials in the melting furnace and melt them at 600°C;

[0014] (3) The smelted alloy solution is cast at 500°C to obtain a zinc alloy with a steady-state creep rate of 1.31×10 -8 (S -1 , 25°C, 100MPa).

Embodiment 2

[0016] (1) Ingredients: by weight percentage: aluminum 4.0%, copper 3.0%, magnesium 0.032%, strontium 0.07%, the weight ratio of germanium to strontium = 0.8:1, and the balance is zinc for ingredients;

[0017] (2) Place the prepared raw materials in the melting furnace and melt them at 650°C;

[0018] (3) The smelted alloy solution is cast at 550°C to obtain a zinc alloy with a steady-state creep rate of 1.54×10 -8 (s -1 , 25°C, 100MPa).

Embodiment 3

[0020] (1) Ingredients: by weight percentage: 4.3% aluminum, 3.3% copper, 0.03% magnesium, 0.08% strontium, the weight ratio of germanium to strontium = 0.6:1, and the balance is zinc for ingredients;

[0021] (2) Put the prepared raw materials in the melting furnace and melt them at 680°C;

[0022] (3) The smelted alloy solution is cast at 550°C to obtain a zinc alloy with a steady-state creep rate of 2.15×10 -8 (s -1 , 25°C, 100MPa).

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PUM

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Abstract

The invention discloses a modification method for zinc alloy. The modification method for the zinc alloy comprises the steps that, firstly, materials are prepared from, by weight, 3.8-4.3% of aluminum, 2.7-3.3% of copper, 0.03-0.05% of magnesium, 0.05-0.08% of strontium, germanium, and the balance zinc, wherein the weight ratio of the germanium to the strontium is (0.5-0.8):1; secondly, the prepared materials are put in a smelting furnace to be smelted at the temperature of 600-680 DEG C; and thirdly, the smelted liquid alloy is burnt and cast at the temperature of 500-550 DEG C to obtain the zinc alloy. Compared with the prior art, the strontium and the germanium are used as modificators; by adjusting the use amount of the strontium and the germanium, the creep rate of the zinc alloy can be obviously reduced, and the creep resistance of the alloy can be improved.

Description

technical field [0001] The invention relates to a modification treatment method of zinc alloy. Background technique [0002] Zinc alloy has good mechanical properties, wear resistance and friction reduction properties, and can be used to replace some copper alloys and even aluminum alloys, but its disadvantage is that it has poor creep resistance and is prone to dimensional changes caused by natural aging. Contents of the invention [0003] The technical problem to be solved by the invention is to overcome the existing defects and provide a modification treatment method for zinc alloy. [0004] In order to solve the problems of the technologies described above, the present invention provides the following technical solutions: [0005] A modification treatment method for zinc alloy, comprising the steps of: [0006] (1) Ingredients: by weight percentage: aluminum 3.8-4.3%, copper 2.7-3.3%, magnesium 0.03-0.05%, strontium 0.05-0.08%, germanium to strontium weight ratio = (...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C18/04C22C1/06
Inventor 朱友奇
Owner 广州市奇诺五金有限公司
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