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High toughness and high ductility zinc alloy and its processing method

A zinc alloy and ductility technology, applied in the field of high toughness and high ductility zinc alloy and its processing, can solve problems such as poor fluidity, and achieve the effect of enhancing corrosion resistance, high dimensional stability and reducing breakage

Inactive Publication Date: 2015-09-30
HUIZHOU YUANBAO METAL CASTING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] ZA8: Good impact strength and dimensional stability, but poor fluidity

Method used

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  • High toughness and high ductility zinc alloy and its processing method

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Embodiment Construction

[0020] In order to facilitate the understanding of those skilled in the art, the present invention will be further described in detail below in conjunction with specific embodiments.

[0021] The present invention discloses a zinc alloy including the following components, which are respectively in mass fractions: magnesium 0.025% to 0.05%, copper less than 0.4%, aluminum 3.8% to 4.3%, iron less than 0.035%, manganese 0.02% to 0.1%, Germanium 0.05%~0.8%, silver 0.02%~1.5%, silicon 0.05%~2%, the balance is zinc.

[0022] As the first embodiment of the above scheme: the zinc alloy includes the following components: magnesium 0.025%, copper 0.2%, aluminum 3.8%, iron 0.025%, manganese 0.06%, germanium 0.05%, silver 0.05%, silicon 0.1%, and the balance is Zinc.

[0023] As the second embodiment of the above scheme: the zinc alloy includes the following components: magnesium 0.035%, copper 0.3%, aluminum 4%, iron 0.035%, manganese 0.1%, germanium 0.5%, silver 1%, silicon 1.5%, and the bala...

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Abstract

The invention relates to a high-toughness high-ductility zinc alloy and processing method thereof. The zinc alloy comprises the following components in percentage by mass: 0.025-0.05% of magnesium, less than 0.4% of copper, 3.8-4.3% of aluminum, less than 0.035% of ferrum, 0.02-0.1% of manganese, 0.05-0.8% of germanium, 0.02-1.5% of argentum, 0.05-2% of silicon and the balance of zinc; a smelting method of the high-toughness high-ductility zinc alloy comprises the following steps: adding above components in a smelting furnace in proportion, controlling the temperature of the smelting furnace within a range of 400-500 DEG.C, adding a fluxing medium after all components are dissolved into liquid, removing slag, and then removing zinc ash, pouring the solution into a die cavity for shaping. The high-toughness high-ductility zinc alloy and processing method thereof have beneficial effects of high yield, good plasticity, good corrosion resistance, small intercrystalline corrosion tendency and high size stability, the phenomena that the product is easy to break and fracture and the screw loose is easy caused by torsion are reduced.

Description

Technical field [0001] The invention relates to a zinc alloy, in particular to a zinc alloy with high toughness and high ductility and a processing method thereof. Background technique [0002] Traditional die-cast zinc alloys are No. 2, 3, 4, 5, and No. 7 alloys, and No. 3 zinc alloy is currently the most widely used. In the 1970s, high-aluminum zinc-based alloys ZA-8, ZA-12, and ZA-27 were developed. [0003] Zamak 3: Good fluidity and mechanical properties. Used in castings that do not require high mechanical strength, such as toys, lamps, ornaments, and some electrical devices. [0004] Zamak 5: Good fluidity and good mechanical properties. Used in castings that have certain requirements for mechanical strength, such as auto parts, electromechanical parts, mechanical parts, and electrical components. [0005] Zamak 2: Used for mechanical parts with special requirements for mechanical properties, high hardness requirements, good wear resistance, and general dimensional accuracy ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C18/04C22C1/02
Inventor 黄长林赵现林黎裕敏
Owner HUIZHOU YUANBAO METAL CASTING
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