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Zinc alloy

A zinc alloy, content technology, applied in zinc alloy. In the field, it can solve the problems of zinc alloy material decline and harm to human health, and achieve the effect of increasing mechanical properties and reducing harm

Inactive Publication Date: 2012-11-07
SIHUI FENGYIXIN METAL CASTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a zinc alloy, which solves the problems of the overall decline of the zinc alloy material and the harm to human health caused by excessive harmful impurities in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] The content of each element in the zinc alloy is:

[0012] Zinc: 93.9%, Aluminum: 4.8%, Magnesium: 0.032%, Copper: 1.2%, Iron: 0.006%, Lead: 0.0062%, Cadmium: 0.0004%, Tin: Less than 0.0005%, Indium: Less than 0.0002%, Antimony: 0.001 %, chromium: 0.0005%, manganese: less than 0.0002%, nickel: 0.0062%, silver: 0.0001%.

Embodiment 2

[0014] The content of each element in the zinc alloy is:

[0015] Zinc: 95.4%, aluminum: 3.8%, magnesium: 0.09%, copper: 0.62%, iron: 0.005%, lead: 0.0032%, cadmium: 0.0002%, tin: less than 0.0006%, indium: less than 0.0001%, antimony: 0.001 %, chromium: 0.0004%, manganese: less than 0.0002%, nickel: 0.0053%, silver: 0.0001%.

[0016] The following is the upper limit concentration of six harmful substances stipulated in RoHS:

[0017] Cadmium: less than 100ppm,

[0018] Lead: less than 1000ppm,

[0019] Less than 3500ppm in steel alloy,

[0020] Less than 4000ppm in aluminum alloy,

[0021] Less than 40000ppm in copper alloy,

[0022] Mercury: less than 1000ppm,

[0023] Hexavalent chromium: less than 1000ppm.

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PUM

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Abstract

The invention provides a zinc alloy, comprising 3.5-4.3% of aluminum, 0.5-0.9% of copper, 0.08-0.15% of magnesium, and the balance of zinc and other impurities, wherein the content of Fe is not more than 0.1%, the content of lead is not more than 0.015%, the content of cadmium is not more than 0.01%, the content of tin is not more than 0.005%, and the above content refers to weight percentage. The temperature of the solution in the preparation of the above environment-friendly zinc alloy is controlled within the range from 390 DEG C to 410 DEG C, each harmful impurity in the zinc alloy is controlled within the range specified by RoHS (restriction of the use of certain hazardous substances), so that the property of the zinc alloy is enhanced, and the damages to environment and human bodies are reduced.

Description

technical field [0001] The invention relates to the field of alloy materials, in particular to a zinc alloy. Background technique [0002] Alloys are substances with metallic properties formed by the fusion of two or more metals (or metals and nonmetals). The formation of alloys often improves the properties of simple elements, thereby obtaining substances with better performance. Zinc alloys are based on Zinc-based alloys are added with other elements. Alloy elements that are often added include aluminum, copper, magnesium, cadmium, lead, titanium, etc. Zinc alloys have low melting point, good fluidity, easy fusion welding and plastic processing, etc., and are widely used , In today's zinc alloy die-casting market, there are various grades of zinc alloys. Due to non-standard production by manufacturers, the market names are confusing, and substandard products are used. Because users do not understand the properties of materials, substandard products often appear during use....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C18/04C22C1/02
Inventor 梁永忠
Owner SIHUI FENGYIXIN METAL CASTING
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