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Environment-friendly free-cutting zinc white copper alloy material and preparation method thereof

An alloy material and easy-cutting technology, which is applied in the field of environmentally friendly easy-cut zinc-nickel-nickel alloy materials and their preparation, can solve problems such as poor electrical conductivity, poor wear resistance, and large friction coefficient, and achieve excellent processing performance, good electrical conductivity, and cutting performance. Good results

Active Publication Date: 2014-04-30
CHUZHOU UNIV
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Problems solved by technology

At present, there are still some problems in the existing copper alloys in my country, such as the alloy contains a large number of impurity elements, poor high temperature fatigue, low high temperature strength; low hardness, poor wear resistance, large friction coefficient, short service life; poor conductivity, waste of electric energy; bending Poor processing performance, easy to break; heavy quality, difficult construction; can not meet market requirements

Method used

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Embodiment Construction

[0013] An environment-friendly free-cutting zinc-nickel-nickel alloy material, which contains chemical element components and mass percentages: nickel 5.8-6.2, zinc 13.5-13.9, antimony 0.35-0.38, cerium 0.05-0.09, Li1.2-1.4, Ba0. 06-0.08, the balance is copper.

[0014] The production method of described environment-friendly free-cutting zinc-nickel-nickel alloy material is as follows:

[0015] (1) Prepare pure copper and scrap copper as the source of copper matrix in a ratio of 1:0.5, add pure copper into the furnace to melt, remove impurities, deoxidize, use refining agent for one-time refining, add alloy components for alloying, and then add Scrap copper melting, adding refining agent for secondary refining, testing and adjusting the content of chemical elements to pass, casting, post-casting heat treatment, etc.;

[0016] (2) The batch order of alloying elements into the furnace during the alloying process is: (1) zinc; (2) nickel, antimony; (3) other remaining components...

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Abstract

The invention relates to an environment-friendly free-cutting zinc white copper alloy material which contains the following chemical components in percentage by mass: 5.8-6.2% of nickel, 13.5-13.9% of zinc, 0.35-0.38% of stibium, 0.05-0.09% of cerium, 1.2-1.4% of Li, 0.06-0.08% of Ba and the balance of copper. The zinc white copper alloy has the beautiful color of white copper and the excellent working properties of zinc brass; and by adding the stibium, cerium, Li and Ba, the zinc white copper alloy has the advantages of favorable cutting characteristic and favorable electric conductivity. The copper alloy is suitable for manufacturing precision parts in the fields of instruments and meters, medical appliances, daily necessities, communications and the like. When the refining agent is used for casting production, the porosity in the casting is lowered by 1-2 degrees, the oxide inclusion content is lowered by 2 levels or so, and the yield is obviously enhanced.

Description

technical field [0001] The invention relates to the field of manufacturing metal alloy materials, in particular to an environment-friendly free-cutting zinc-nickel-nickel alloy material and a preparation method thereof. Background technique [0002] Copper is widely used because of its good electrical conductivity, plasticity and corrosion resistance. Adding elements such as aluminum, nickel, manganese, tin, silicon, and lead to copper alloy can improve the performance of copper and be used in different places. At present, there are still some problems in the existing copper alloys in my country, such as the alloy contains a large number of impurity elements, poor high temperature fatigue, low high temperature strength; low hardness, poor wear resistance, large friction coefficient, short service life; poor conductivity, waste of electric energy; bending The processing performance is poor and it is easy to break; the quality is heavy and the construction is difficult; it can...

Claims

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Application Information

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IPC IPC(8): C22C9/04C22C1/02C22C1/06C22F1/08
Inventor 丁健倪受春林其斌葛浩夏岩磊杨玭
Owner CHUZHOU UNIV
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