Lead-free environmental silicon brass alloy bar or alloy ingot and preparation method thereof

A technology of alloy ingots and alloy rods, which is applied in the field of lead-free easy-cutting and environmentally friendly silicon brass alloy materials, can solve the problems of high-end product application of castings that affect casting costs, decline in casting yield, and lack of pouring, etc., to achieve excellent casting performance, Improved fluidity and reduced manufacturing costs

Inactive Publication Date: 2010-01-27
浙江天申铜业有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned alloy materials take into account many uses as plastic alloys, rolled alloys or cast alloys, but cause practical shortcomings in the process of practical application
For example, due to poor fluidity in the casting process,

Method used

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  • Lead-free environmental silicon brass alloy bar or alloy ingot and preparation method thereof

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[0049] The lead-free and environment-friendly silicon brass alloy rod or alloy ingot and the preparation method thereof of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific examples, but the protection scope of the present invention cannot be limited by this.

[0050] The general composition requirements of the lead-free and environmentally friendly silicon brass alloy rod or alloy ingot involved in the present invention are as follows:

[0051] Element Mass %

[0052] Copper: 60%~70%

[0053] Silicon: 0.7%~30%

[0054] Aluminum: ≤0.15%

[0055] Lead: ≤0.25%

[0056] Iron: ≤0.5%

[0057] Tin: ≤0.3%

[0058] Phosphorus: ≤0.1%

[0059]Nickel: ≤0.2%

[0060] Antimony: ≤0.25%

[0061] The balance is zinc and unavoidable impurities.

[0062] On the premise of the above composition requirements, as an optimized configuration to achieve better technical effects, the following scheme is proposed:

[006...

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Abstract

The invention relates to a lead-free environmental silicon brass alloy bar or alloy ingot and the alloy material comprises the following chemical elements by weight percent: 60%-70% of copper, 0.7%-3.0% of silicon, 0.15% or less of aluminium, 0.25% or less of lead, 0.5% or less of iron, 0.3% or less of tin, 0.1% or less of phosphorus, 0.2% or less of nickel, 0.25% or less of antimony and the balance zinc and unavoidable impurities. The lead content of the silicon brass alloy material of the invention is greatly reduced, which corresponds to the demand of environmental protection and health; the alloy material has good casting property and is applicable to casting, in particular to large-scale gravity casting so as to have broad application prospect in health fittings industry.

Description

technical field [0001] The invention relates to a lead-free brass alloy, in particular to a lead-free, easy-cutting and environmentally friendly silicon brass alloy material with excellent casting performance, corrosion resistance and subsequent machining performance, and its appearance is in the form of an alloy rod or alloy ingot. They are especially suitable for casting water supply system castings, valve parts, etc. They are metal materials that are beneficial to human health and environmental protection, and are also excellent substitutes for lead brass, which is widely used at present and will cause adverse effects on the human body and the environment. Background technique [0002] Lead brass has excellent mechanical and physical properties, good casting performance and cutting performance, and is cheap, so it is widely used in instrumentation, electronics, electrical appliances, daily hardware, drinking water systems, etc., especially Hpb59-1 The production and appl...

Claims

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Application Information

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IPC IPC(8): C22C9/04C22C1/03C22C1/06
Inventor 蒋明川
Owner 浙江天申铜业有限公司
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