摘要
试验分析了上引连铸铜管坯时加入不同量的PCu合金对连铸坯脱氧效果的影响,以及加入量对铸坯组织性能和表面质量的影响规律。结果表明:一定量的P含量有较好的脱氧作用,但易使铸造晶粒粗化。PCu加入量在某一范围时能提高铸坯力学性能,而不显著降低Cu的加工塑性。但当PCu加入量大于0.15%时连铸坯表面粗糙度会随之增大。继续加入PCu会使铸坯力学性能和工艺性能有所下降。当PCu加入量质量分数超过0.45%时,会造成上引困难,甚至于出现拉断现象。因此在上引连铸铜坯时,控制残余P含量是改善连铸坯力学性能和塑性加工性能的主要工艺措施。
Although P can deoxidize the Cu materials in continuous casting,it can greatly affect the quality of continuous casting Cu billets.The effects of P-Cu addition on the deoxidization and microstructure behavior as well as surface quality of Cu billets in up-drawing continuous casting were investigated.The results show that a certain P addition take a better deoxidization,meanwhile deteriorate the as-cast grain structure.With the P addition at a certain extent,the mechanical properties of the Cu billets can be improved and the working plasticity can be slightly decreased.With P addition more than 0.15%,the surface roughness is increased.The mechanical properties and processing performance of the billets is decreased with increase in P-Cu addition.It is difficult to take up-drawing,more even resulting in the occurrence of the drawing-out with the P addition more than 0.45%.So,proper P addition can better deoxidize the Cu materials and improve mechanical properties and machining performance.
出处
《特种铸造及有色合金》
CAS
CSCD
北大核心
2005年第12期764-766,共3页
Special Casting & Nonferrous Alloys
关键词
P-Cu合金
加入量
上引连铸坯
P-Cu Alloy,Addition,Up-drawing Continuous Casting Cu Billets
