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Leadless and easily cut brass alloy

A brass alloy and easy-cutting technology, which is applied in the field of lead-free free-cutting brass alloys, can solve problems such as pollution, and achieve the effects of simple production process, increased production cost, and low bismuth content

Active Publication Date: 2004-11-17
ZHEJIANG HAILIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pollution and harm caused by lead itself as a heavy metal has always existed. After lead brass is used in plumbing and sanitary products, in addition to the pollution caused by the "lead" in it, what is more serious is that the production and use of lead brass It will volatilize or dissolve during the process, which can easily lead to the secretion of human hormones and the intellectual development of infants and young children

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0011] The preparation of the lead-free free-cutting brass alloy of the present invention adopts a power frequency cored induction furnace. In the copper-zinc alloy melt, zinc (Zn) ingots and copper-bismuth (Cu- Bi) Materials such as intermediate alloys are prepared by vertical semi-continuous casting to prepare cylindrical lead-free free-cutting brass alloy ingots. The addition amount of each component is respectively by weight percentage: copper (Cu) 57.0%-63.0%, bismuth (Bi) 0.1-3.5%, iron (Fe) ≤ 0.5%, tin (Sn) ≤ 0.5%, the rest It is zinc (Zn).

[0012] project

[0013] Other performance indicators are as follows:

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Abstract

A leadless and easily cut brass alloy relates to the field of metallic material alloying technology, which comprises the components of (by weight percentage) Cu 57.0-63.0%, Bi 0.1-0-3.5%, Fe <=0.5%, Sn<=0.5%, balancing Zn and impurity whose total amount is less than 0.05%.

Description

technical field [0001] The invention relates to a lead-free free-cutting brass alloy, which belongs to the technical field of manufacturing metal alloy materials. Background technique [0002] With the improvement of people's living standards and the intensification of world economic integration, countries all over the world, especially developed countries, have higher and higher requirements for environmental protection, and pay more attention to the factors that seriously affect our health. Lead brass, as a common production raw material since ancient times, is widely used in plumbing and sanitary ware and other various production fields. However, the pollution and harm caused by lead itself as a heavy metal has always existed. After lead brass is used in plumbing and sanitary products, in addition to the pollution caused by the "lead" in it, what is more serious is that the production and use of lead brass It will volatilize or dissolve during the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/04
Inventor 郭均华何幼其石航行冯亚丽曹建国汪治军姜少军李国平唐吉苗李华苗庹威
Owner ZHEJIANG HAILIANG
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