CN104561658A

CN104561658A - High-strength lead-free corrosion-resisting brass alloy

Info

Publication number: CN104561658A
Application number: CN201310485090.3A
Authority: CN
Inventors: 戴留庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-10-16
Filing date: 2013-10-16
Publication date: 2015-04-29

Abstract

The invention relates to the technical field of alloy materials, in particular to a high-strength lead-free corrosion-resisting brass alloy. The brass alloy comprises components in percentage by weight as follows: 30%-40% of copper, 0.2%-0.4% of iron, 0.1%-0.5% of arsenic, 0.05%-0.3% of cerium, 0.8%-1.5% of nickel, 0.4%-0.8% of aluminum, 0.8%-2% of tin, 0.5%-3% of bismuth and the balance of zinc and inevitable impurities. The provided corrosion-resisting brass alloy has high strength and is free of lead.

Description

A kind of high strength lead-free anti-corrosion brass alloys

Technical field

The present invention relates to a kind of technical field of alloy material, specifically a kind of high strength lead-free anti-corrosion brass alloys.

Background technology

Brass has higher mechanical property, good erosion resistance and lower application cost, is the widely used material of each type component in production.The demand of brass is rapid growth by the quick propelling along with China's manufacturing industry.In order to improve cutting ability during brass mechanical workout, generally with the addition of the lead (Pb) of 1 ~ 3% in brass, but lead is as a kind of harmful element, while environment being caused to greatly pollution, also has very large harm to HUMAN HEALTH.Thus national governments have put into effect the restriction order to copper alloy containing lead application in succession, and the state such as the U.S., Japan and European Union have done strict restriction respectively to the lead content in copper alloy with at the leaching content of Pb in Drinking Water.Due to leaded free-cutting metal parts, almost relate to all production products, therefore Chinese Enterprises is badly in need of the supply problem solving low cost lead-free reflow material.

Summary of the invention

The object of this invention is to provide a kind of high strength, lead-free inhibited brass alloy.

Technical scheme of the present invention is a kind of high strength lead-free anti-corrosion brass alloys, described each compositions in weight percentage is respectively: copper 30-40%, iron 0.2-0.4%, arsenic 0.1-0.5%, cerium 0.05-0.3%, nickel 0.8-1.5%, aluminium 0.4-0.8%, tin 0.8-2%, bismuth 0.5-3%, surplus is zinc and inevitable impurity.

Say further, described inevitable foreign matter content is no more than 0.3%.

Say further, described cerium can replace with the mishmetal that cerium content is no less than 50%, and mishmetal weight content is 0.1-0.3%.

Advantage of the present invention is not containing harmful element " lead ", reduces the harm of environmental pollution and human body, high strength, corrosion-resistant.

Embodiment

The present invention is further described with the following Examples,

Embodiment 1, a kind of high strength lead-free anti-corrosion brass alloys, described each compositions in weight percentage is respectively: copper 30%, iron 0.2%, arsenic 0.1%, cerium 0.05%, nickel 0.8%, aluminium 0.4%, tin 0.8%, bismuth 0.5%, and surplus is zinc and inevitable impurity.Described inevitable foreign matter content is no more than 0.3%.Described cerium can replace with the mishmetal that cerium content is no less than 50%, and mishmetal weight content is 0.1%.

Embodiment 2, a kind of high strength lead-free anti-corrosion brass alloys, described each compositions in weight percentage is respectively: copper 35%, iron 0.3%, arsenic 0.3%, cerium 0.17%, nickel 1.1%, aluminium 0.6%, tin 0.14%, bismuth 1.75%, and surplus is zinc and inevitable impurity.Described inevitable foreign matter content is no more than 0.3%.Described cerium can replace with the mishmetal that cerium content is no less than 50%, and mishmetal weight content is 0.2%.

Embodiment 3, a kind of high strength lead-free anti-corrosion brass alloys, described each compositions in weight percentage is respectively: copper 40%, iron 0.4%, arsenic 0.5%, cerium 0.3%, nickel 1.5%, aluminium 0.8%, tin 2%, bismuth 3%, and surplus is zinc and inevitable impurity.Described inevitable foreign matter content is no more than 0.3%.Described cerium can replace with the mishmetal of cerium content many 50%, and mishmetal weight content is 0.3%.

Should be understood that this embodiment is only not used in for illustration of the present invention to limit the scope of the invention.In addition, should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the protection domain that the application's appended claims limits equally after having read the content that the present invention lectures.

Claims

1. high strength lead-free anti-corrosion brass alloys, is characterized in that, described each compositions in weight percentage is respectively: copper 30-40%, iron 0.2-0.4%, arsenic 0.1-0.5%, cerium 0.05-0.3%, nickel 0.8-1.5%, aluminium 0.4-0.8%, tin 0.8-2%, bismuth 0.5-3%, surplus is zinc and inevitable impurity.

2. a kind of high strength lead-free anti-corrosion brass alloys according to claim 1, it is characterized in that, described inevitable foreign matter content is no more than 0.3%.

3. a kind of high strength lead-free anti-corrosion brass alloys according to claim 1, is characterized in that, described cerium can replace with the mishmetal that cerium content is no less than 50%, and mishmetal weight content is 0.1-0.3%.