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A kind of lanthanum-containing brass alloy material and preparation method thereof

A brass alloy and alloying technology, applied in the field of lanthanum-containing brass alloy materials and their preparation, can solve the problems of large friction coefficient, poor electrical conductivity, heavy quality, etc. rate effect

Active Publication Date: 2016-04-06
GUANGXI SHENGLONG METALLURGICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 lanthanum-containing brass alloy material, which contains chemical element components and mass percentages: zinc 26.5-26.9, bismuth 1.5-1.9, manganese 0.2-0.4, tin 3.2-3.5, nickel 9.5-9.9, lanthanum 0.05-0.07 , Sb0.03-0.05, and the balance is copper.

[0014] The production method of described lanthanum-containing brass alloy material is as follows:

[0015] (1) Prepare pure copper and scrap copper as the source of copper matrix in a ratio of 1:0.6, 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) manganese, bismuth, lanthanum, Sb; (3) other remaining components; the time ...

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Abstract

A lanthanum-containing brass alloy material comprises the chemical elements in percent by mass: 26.5-26.9% of Zn, 1.5-1.9% of Bi, 0.2-0.4% of Mn, 3.2-3.5% of Sn, 9.5-9.9% of Ni, 0.05-0.07% of La, 0.03-0.05% of Sb, and the balance Cu. The alloy has the advantages of easy processing and corrosion resistance owned by stannum brass, also has relatively high strength, and is good in cutting performance and not reduced in electric conductivity by adding Bi, La and Sb. The copper alloy is suitable for preparing ships and electrical engineering precise parts. An employed refining agent is used for casting production, is capable of reducing the porosity degree of a casting by 1-2 degree and enabling the oxide inclusions to be around second grade, and helps to obviously improve the yield.

Description

technical field [0001] The invention relates to the field of manufacturing metal alloy materials, in particular to a lanthanum-containing brass 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 cannot meet the market require...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/04C22C1/06C22F1/08
Inventor 陈大军
Owner GUANGXI SHENGLONG METALLURGICAL CO LTD
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