Transactions of Materials and Heat Treatment

Title：Reason analysis on surface disuniform of copper alloy forging

Authors： Ge Zhirui Ouyang Baili Ge Yunjie Zhu Zhenyu

Unit： China Railway Construction Electrification Bureau Group Rail Transit Equipment Co. Ltd.

KeyWords： CuNi2Si alloy high speed rail contact net banded arabesque forging quality

ClassificationCode：

year,vol(issue):pagenumber：2016,41(1):127-130

Abstract：

CuNi2Si, a sort of nickel silicon bronze material, is widely used in high speed rail contact net in recent years. In copper alloy forging process, abnormal banded pattern on the surface of forge pieces was observed. According to this issue, the abnormal forge pieces were analyzed with direct-reading spectrometer, metallographic microscope, SEM and EDS. The result shows that internal components and organization structure without abnormity in both copper bar and forge piece meet the requirement. However, the microscope analysis of forging surface shows obvious lamination from substrate. And chemical constituents are distinct from substrate. Thus the abnormal phenomenon is caused by other materials adhere to raw material surface. So corresponding measures were put forward and a relatively ideal result was got.

Funds：

葛志锐（1984-），男，本科，工程师

Reference：

[1]殷荣幸，王旭，李东升．CuNi2Si铜合金定位线夹裂纹产生原因及预防措施[J].有色金属加工，2014，43（5）：23-25．

Ying R X，Wang X，Li D S．Study on causes and preventive measures of cracks in CuNi2Si copper alloy positioning clamp[J]. Nonferrous Matels Procession，2014，43（5）：23-25．

[2]GB/T 20078—2006，铜和铜合金锻件[S].

GB/T 20078—2006，Copper and copper alloy forgings[S]．

[3]李明亮，刘平，刘新宽，等．铜合金连续挤压工艺及模具设计[J]．锻压技术，2014，39（11）：39-42．

Li M L，Liu P，Liu X K，et al．Continuous extrusion process and mould design for copper alloy[J]．Forging & Stamping Technology，2014，39（11）：39-42．

[4]王碧文，王涛，王铸堂．铜合金及加工技术[M]．北京：化学工业出版社，2012．

Wang B W，Wang T，Wang Z T．Copper Alloy and Processing Technology[M]．Beijing：Chemical Industry Press，2012．

[5]刘培兴，刘晓塘．铜合金及其加工手册[M]．北京：化学工业出版社，2012．

Liu P X，Liu X T．Copper Alloy and Its Processing Manual[M]．Beijing：Chemical Industry Press，2012．

[6]陆俊攀．加工铜及铜合金金相图谱[M]．长沙：中南大学出版社，2010．

Lu J P．Processing of Copper and Copper Alloy Metallographic Atlas[M]．Changsha：Central South University Press，2010．

[7]张涛，于兆卿，阎洪涛．热模锻压力机身的受力及刚度分析[J]．锻压技术，2014，39（11）：62-65．

Zhang T，Yu Z Q，Yan H T．Force and stiffness analysis on the assembly frame of hot die forging press[J]．Forging & Stamping Technology，2014，39（11）：62-65．

[8]娄花芬，黄亚飞，马可定．铜及铜合金熔炼与铸造技术[M]．长沙：中南大学出版社，2010．

Lou H F，Huang Y F，Ma K D．Copper and Copper Alloy Smelting and Casting Technology[M]．Changsha：Central South University Press，2010．

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