A seawater corrosion-resistant complex cupronickel alloy material and its preparation method

An alloy material and seawater-resistant technology, which is applied in the seawater corrosion-resistant complex white copper alloy material and its preparation field, can solve the problems of poor high-temperature fatigue, poor electrical conductivity, and poor bending processing performance, and achieve excellent seawater corrosion resistance and excellent thermoforming performance, the effect of good cutting performance

Active Publication Date: 2016-05-11
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] A complex copper-nickel alloy material resistant to seawater corrosion. The chemical element composition and its mass percentage are: silicon 0.9-1.2, tin 3.9-4.2, nickel 12.5-13.2, antimony 0.9-1.2, zinc 2.4-2.7, W0.04 -0.06, Tm0.12-0.16, the balance is copper.

[0014] The production method of the seawater corrosion-resistant complex white copper alloy material is:

[0015] (1) Prepare pure copper and scrap copper as the source of copper matrix in a ratio of 1:0.6, add pure copper into the furnace to melt, remove impurities, deoxidize, refining with a refining agent, add alloy components for alloying, and then add Scrap copper is melted, refining by adding refining agent, testing and adjusting the content of chemical elements to qualified, casting, post-casting heat treatment, etc.;

[0016] (2) The batch sequence of adding alloying elements to the furnace during the alloying process is: (1) Nickel, Tm; (2) Silicon, zinc; (3) Other remaining components; the time interval fo...

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Abstract

The invention relates to a seawater corrosion resistance complex cupronickel alloy material, comprising the following chemical elements by mass percent: 0.9-1.2% of silicon, 3.9-4.2% of tin, 12.5-13.2% of nickel, 0.9-1.2% of stibium, 2.4-2.7% of zinc, 0.04-0.06% of W, 0.12-0.16% of Tm and the balance of copper. The seawater corrosion resistance complex cupronickel alloy has high strength of extension, excellent thermal forming performance and dezincification resistance performance, good machinability due to addition of stibium and Tm and excellent seawater corrosion resistance performance due to existence of tin. By reasonably controlling treatment temperature after casting and utilizing waste copper as a raw material, core hardness is basically consistent with surface hardness, the alloy is uniform in quality, the manufacturing process is simple, and the cost is low. A refining agent is used for casting production, porosity of a casting can be reduced by 1-2 degrees, and oxide inclusion is at level 2 approximately.

Description

Technical field [0001] The invention relates to the manufacturing field of metal alloy materials, in particular to a complex copper-nickel alloy material resistant to seawater corrosion and a preparation method thereof. Background technique [0002] Copper is widely used because of its good electrical conductivity, plasticity and corrosion resistance. Adding aluminum, nickel, manganese, tin, silicon, lead and other elements to copper alloys can improve the performance of copper and be used in different places. At present, the existing copper alloys in my country still have some problems, such as the alloy contains a lot 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 cannot meet the market req...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/06C22C1/06C22F1/08
Inventor 丁健倪受春林其斌葛浩夏岩磊杨玭
Owner CHUZHOU UNIV
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