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Zinc alloy

A zinc alloy, content technology, applied in zinc alloy. It can solve the problems of endangering human health, environmental pollution, and the decline of zinc alloy materials, and achieve the effects of reducing hazards, reducing intergranular corrosion, and increasing mechanical properties.

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 invention proposes a zinc alloy, which solves the problems in the prior art such as the overall decline of the zinc alloy material caused by excessively high content of harmful impurities, endangering human health, and causing environmental pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The content of each element in the zinc alloy is:

[0013] Zinc: 95.9%, Aluminum: 3.94%, Copper: 0.034%, Magnesium: 0.044%, Iron: 0.05%, Lead: 0.0022%, Cadmium: 0.0007%, Tin: 0.0004%, Indium: Less than 0.0002%, Antimony: 0.0011% , chromium: 0.0007%, manganese: less than 0.0003%, nickel: 0.0076%, silver: less than 0.0001%.

Embodiment 2

[0015] The content of each element in the zinc alloy is:

[0016] Zinc: 95.7%, Aluminum: 3.98%, Copper: 0.039%, Magnesium: 0.044%, Iron: 0.062%, Lead: 0.0032%, Cadmium: 0.0005%, Tin: 0.0004%, Indium: Less than 0.0003%, Antimony: 0.0013% , chromium: 0.0005%, manganese: less than 0.0004%, nickel: 0.0062%, silver: less than 0.0001%.

[0017] The following is the upper limit concentration of six harmful substances stipulated in RoHS:

[0018] Cadmium: less than 100ppm,

[0019] Lead: less than 1000ppm,

[0020] Less than 3500ppm in steel alloy,

[0021] Less than 4000ppm in aluminum alloy,

[0022] Less than 40000ppm in copper alloy,

[0023] Mercury: less than 1000ppm,

[0024] Hexavalent chromium: less than 1000ppm.

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PUM

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Abstract

The invention provides zinc alloy. The zinc alloy comprises, by weight percent, 3.9%-4.3% of aluminum, 0.03%-0.06% of magnesium, the balance of zinc and other impurities, not larger than 0.03% of copper, not larger than 0.1% of iron, not larger than 0.005% of lead, not larger than 0.003% of cadmium, not larger than 0.002% of tin. Melt temperature is controlled at 390-410 DEG C during production of the zinc alloy, and the produced zinc alloy meets the RoHs (restriction of hazardous substances) standard of European Union. Overall performance of the zinc alloy is improved, resources are saved, and pollution is lowered.

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): C22C18/04
Inventor 梁永忠
Owner SIHUI FENGYIXIN METAL CASTING
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