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Microalloying copper alloy

A microalloying and copper alloying technology, applied in the field of non-ferrous metal preparation, can solve the problems of lower yield, poor economy, multiple cracks, peeling, markings, etc., to improve the surface finish, meet the normal use requirements, and beautiful appearance Effect

Inactive Publication Date: 2010-10-13
SHAOXING YUEYU COPPER STRIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the existing copper alloy strips are processed by deep hole punching and processing of thin-walled shells, there are often defects such as cracks, peeling, and markings on the surface, and the yield of thin-walled shells that meets the requirements is low, so the economy is poor.
In addition, in order to improve the appearance of the power plugs sold in European and American markets, the outer surface of the thin-walled shell needs to be electroplated with nickel. If the thin-walled shell has defects such as cracks, peeling, and markings, there will be obvious color difference after electroplating. Or orange peel defects, which seriously affect the appearance of the product, will not only further reduce the yield, but also be detrimental to the sales of the product

Method used

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  • Microalloying copper alloy

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Effect test

Embodiment 1

[0015] Embodiment 1: see table 1, a kind of microalloyed copper alloy, its composition by mass percentage is: copper 62%, nickel 0.05%, magnesium 0.001%, mixed rare earth Re 0%, surplus is zinc and other unavoidable Impurities, and the content of impurities in the whole alloy is ≤0.3%, the content of tin, one of the harmful elements in the impurity, is ≤0.05% in the whole alloy, the sum of other non-essential impurities is ≤0.25%, and one of the non-essential impurities The mass percentage content of the element lead is ≤0.05%, and the mass percentage content of the cadmium is ≤0.002%.

[0016] The copper alloy made according to the above ratio, the thickness of the homogeneous copper alloy strip made of the copper alloy is 0.4mm, the yield of the thin-walled shell formed by deep hole punching is 99.2%, the surface of the thin-walled shell is smooth, there is no obvious Defects such as cracks, peeling, wrinkles, etc., after the surface is electroplated with nickel, the color a...

Embodiment 2

[0017] Embodiment 2: see table 1, a kind of microalloyed copper alloy, its composition by mass percentage is: copper 65%, nickel 0.1%, magnesium 0.005%, mixed rare earth Re 0%, surplus is zinc and other unavoidable Impurities, and the content of impurities in the whole alloy is ≤0.3%, the content of tin, one of the harmful elements in the impurity, is ≤0.05% in the whole alloy, the sum of other non-essential impurities is ≤0.25%, and one of the non-essential impurities The mass percentage content of the element lead is ≤0.05%, and the mass percentage content of the cadmium is ≤0.002%.

[0018] The copper alloy made according to the above ratio, the thickness of the homogeneous copper alloy strip made of the copper alloy is 0.4mm, the yield of the thin-walled shell formed by deep hole punching is 99.5%, the surface of the thin-walled shell is smooth, there is no obvious Defects such as cracks, peeling, wrinkles, etc., after the surface is electroplated with nickel, the color an...

Embodiment 3

[0019] Embodiment 3: see table 1, a kind of microalloyed copper alloy, its composition by mass percentage is: copper 68%, nickel 0.15%, magnesium 0.01%, mixed rare earth Re 0%, surplus is zinc and other unavoidable Impurities, and the content of impurities in the whole alloy is ≤0.3%, the content of tin, one of the harmful elements in the impurity, is ≤0.05% in the whole alloy, the sum of other non-essential impurities is ≤0.25%, and one of the non-essential impurities The mass percentage content of the element lead is ≤0.05%, and the mass percentage content of the cadmium is ≤0.002%.

[0020] The copper alloy made according to the above ratio, the thickness of the homogeneous copper alloy strip made of the copper alloy is 0.4mm, the yield of the thin-walled shell formed by deep hole punching is 99.3%, the surface of the thin-walled shell is smooth, there is no obvious Defects such as cracks, peeling, wrinkles, etc., after the surface is electroplated with nickel, the color an...

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Abstract

The invention discloses a microalloying copper alloy which comprises the following component in percentage by mass: 62-68% of copper, 0.05-0.15% of nickel, 0.001-0.01% of magnesium, 0-0.15% of mixed rare earth Re, and the balance of zinc and other inevitable impurities. The impurities account for less than or equal to 0.3% in the whole alloy, and one of the impurities, tin, accounts for less than or equal to 0.05% in the whole alloy. According to the proportion, the invention can enhance the surface smoothness and reduce the defects, such as cracking, peeling, wrinkling and the like. After being plated with nickel on the surface, the copper alloy has uniform color and beautiful appearance.

Description

technical field [0001] The invention discloses a microalloyed copper alloy, which is used for pins of power plugs and belongs to the technical field of nonferrous metal preparation. Background technique [0002] The power plug is a common device for small electrical equipment to obtain power. At present, the round pins of the power plugs commonly used at home and abroad are generally made of whole-body copper alloy. With the increasing consumption of copper and zinc resources, active efforts are being made worldwide. Research cheaper materials to replace copper and zinc alloy materials. Although some people have tried to use deep-hole punched copper alloy strips to produce a thin-walled shell that is basically the same shape as the round pins of the power plug, and its interior is filled with plastic as the inner core, thereby reducing the resource consumption of copper and zinc. The plug is used for small current electrical equipment; the other is the inner core made of al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/04
Inventor 陈天立吴国华钱新祥李柏洋宋武吴志毅
Owner SHAOXING YUEYU COPPER STRIP
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