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Zinc-aluminium alloy silk containing rare earth and producing process thereof

A zinc-aluminum alloy wire and rare earth technology, which is applied in metal material coating process, fusion spraying, coating, etc., can solve the problem of decreased tensile strength and elongation of finished wire, poor flexibility of product wire, and product wire pull. problems such as difficult control, to avoid harmful effects, reduce the formation probability and particle size, and achieve the effect of compact structure

Inactive Publication Date: 2005-04-27
戴国水
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, zinc-aluminum alloy wire also has some unsatisfactory aspects. First, it is very sensitive to the iron that is inevitably brought in during the smelting process. As long as it is a little careless, it will be difficult to process, the surface quality will deteriorate, and the hardness of the product wire will increase. The flexibility becomes poor, so that the gun is blocked or even the wire is broken during use; secondly, under the condition of non-vacuum smelting, it is also very sensitive to the gas brought in during the smelting process. broken, the product wire drawing is difficult, and the tensile strength and elongation of the finished wire decrease

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0018] Embodiment 1: the composition of each component is respectively by weight percentage: aluminum (Al): 4.5-5.5%, the zinc-based master alloy containing 5% misch metal (RE) 1~1.4%, all the other are zinc (Zn ) and impurities with a total amount not greater than 0.025%.

Embodiment 2

[0019] Embodiment 2: the composition of each component is respectively by weight percent: aluminum (Al): 8-10%, the zinc-based master alloy containing 5% mixed rare earth metal (RE) 1~1.4%, all the other are zinc (Zn ) and impurities with a total amount not greater than 0.025%.

Embodiment 3

[0020] Embodiment 3: the composition of each component is respectively by weight percentage: aluminum (Al): 14-16%, the zinc-based master alloy containing 5% mixed rare earth metal (RE) 1~1.4%, all the other are zinc (Zn ) and impurities with a total amount not greater than 0.025%.

[0021] In the above embodiments, the mixed rare earth metals (RE) are mainly light rare earth elements such as lanthanum (La), cerium (Ce), praseodymium (Pr), and neodymium (Nd).

[0022] During the preparation of the above-mentioned embodiments, the total amount of impurities should be controlled at <0.025%, among which Fe<0.01%, Si<0.01%, Pb<0.005%, Sn<0.001%, and Cd<0.003%.

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Abstract

The present invention is RE containing Zn-Al alloy wire and its preparation process, and the RE containing Zn-Al alloy is used as the end spraying material for metallized film capacitor. The RE containing Zn-Al alloy contains Al 4-16 wt%, RE mixture with light RE as main components 0.01-0.12 wt%, and impurity not more than 0.025 wt% except Zn. The preparation process includes pouring Al molt into Zn molt, raising the temperature for melting while stirring, adding intermediate RE alloy, and smelting while stirring to obtain the RE containing Zn-Al alloy. The RE containing Zn-Al alloy wire of the RE containing Zn-Al alloy has compact structure, improved machining performance and use performance, and improved welding condition.

Description

technical field [0001] The invention relates to a rare earth-containing zinc-aluminum alloy wire and a preparation method thereof, and belongs to the technical field of preparation of metal materials used for spraying the end faces of metallized film capacitors. Background technique [0002] The metal material sprayed on the end surface of metallized film capacitors that has been widely used is five-component lead-based gold-sprayed material. Its lead content is as high as 53-59.4%. Lead is highly toxic to the human body and is facing a global lead-free upsurge. The fate of being eliminated. The patent (application) No. 02111556.7 discloses a zinc-aluminum alloy wire and its preparation method. As a substitute for lead-based gold-sprayed materials, this material can adapt to higher working temperatures and have higher self-efficiency than lead-based gold-sprayed materials. Strength, thus making capacitor lead soldering more reliable. In the 100KH high...

Claims

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Application Information

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IPC IPC(8): C22C18/04C23C4/08
Inventor 戴国水金成焕
Owner 戴国水
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