【摘要】 在传统两相黄铜的基础上,加入 Bi 取代 Pb,成功地研制出了无铅易切削黄铜——铋黄铜,并确定了合理的合金成分和加工工艺。利用 Pb 黄铜的加工设备和类似的生产工艺,成功地生产出了铋黄铜热轧材、挤压材和拉拔线材,其表面质量、切削性能及机械性能都达到或超过了铅黄铜的性能指标。更多还原

【Abstract】 The unleaded free-cutting brass,or bismuth brass,has been successfully developed on the basis of traditional duplex brass and substituting Bi for Pb,and the reasonable alloy composition and process parameters are determined.The bismuth brass hot rolled rod,hot extruded rod and drawn wire are successfully produced by means of the equipments for processing the leaded brass.The surface quality,cut ability and mechanical property of all the products reach or surpass the performance index of leaded brass.更多还原