Easy cutting brass alloy containing silicon without lead

Abstract

The present invention belongs to the field of metal material producing technology, and the easy-to-cut brass alloy contains Cu 80-84 wt%, Si 2.5-5.0 wt%, As 0.02-0.10 wt%, except Zn and 0.05 wt% below impurity. It may be used in replacing widely applied corresponding lead brass alloy to avoid lead pollution while ensuring excellent cutting performance, mechanism performance and conducting performance.

Description

technical field [0001] The invention relates to a silicon-containing lead-free free-cutting brass alloy, which belongs to the technical field of metal material manufacture. 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 relatively common metal processing 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. For example, 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 lead in the production and It will vol...

AI Technical Summary

Problems solved by technology

However, the pollution and harm caused by lead itself as a heavy metal has always existed. For example, 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 lead in the production and It will volatilize or dissolve during use, which can easily lead to the secretion of human hormones and the intellectual development of infants and young children