| 脉冲电流处理方式对45钢凝固组织的影响 |
| |
| 引用本文： | 张西锋,袁守谦,魏颖娟,邱斌,杨拉道,谢东钢.脉冲电流处理方式对45钢凝固组织的影响[J].特殊钢,2009,30(1):10-12. |
| |
| 作者姓名： | 张西锋 袁守谦 魏颖娟 邱斌 杨拉道 谢东钢 |
| |
| 作者单位： | 1西安建筑科技大学冶金工程学院，西安710055;
2西安重型机械研究所，西安710032 |
| |
| 摘 要： | 45钢(0.43%C)在10kg中频感应炉出钢前(凝固前)经2600V、0.862Hz、电容器电容量200μF脉冲电流处理60s和钢水在铸模凝固过程用相同参数的脉冲电流处理3.5min后发现,两种脉冲电流处理方法均能改善钢的凝固组织:增加等轴晶和减少柱状晶数量,并减少魏氏组织,使珠光体片层间距减小;同时改善了钢的成分偏析,碳、硫、磷的偏析指数分别由未经脉冲电流处理的1.257、1.502和1.384降低至脉冲电流处理的1.125～1.194、1.067～1.300、1.227～1.092。
|
| 关 键 词： | 脉冲电流处理 45钢 凝固组织 |
| 收稿时间： | 2008-07-10 |
Influence of Pulse Current Treatment Method on Solidified Structure of a 45 Steel |
| |
| Zhang Xifeng,Yuan Shouqian,Wei Yingjuan,Qiu Bin,Yang Ladao,Xie Donggang.Influence of Pulse Current Treatment Method on Solidified Structure of a 45 Steel[J].Special Steel,2009,30(1):10-12. |
| |
| Authors: | Zhang Xifeng Yuan Shouqian Wei Yingjuan Qiu Bin Yang Ladao Xie Donggang |
| |
| Affiliation: | 1 School of Metallurgical Engineering, Xi'an University of Architecture & Technology, Xi'an 710055 ；
2 Xi'an Heavy Machinery Research Institute, Xi'an 710032 |
| |
| Abstract: | With pulse current ( 2 600 V, 0. 862 Hz, capacitance of capacitor 200 μF) treated liquid 45 steel (0. 43% C) for 60 s before tapping from 10 kg medium frequency furnace ( before solidification) or with same pulse current treated liquid for 3. 5 min during solidified process in casting mold, it was found that both pulse current treated methods all were able to improve solidified structure of steel, i. e. increased equiaxial crystal, decreased columnar crystal. reduced Widmannstattern structure and decreased interlamellar spacing of pearlite, besides to improve chemical composition segregation ,the segregation index of carbon, sulphur and phosphorus respectively decreased to 1. 125 ~ 1. 194, 1. 067 ~ 1. 300 and 1. 227 ~ 1. 092 with pulse current treatment from 1. 257, 1. 502 and 1. 384 without pulse current treatment. |
| |
| Keywords: | |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《特殊钢》浏览原始摘要信息 |
|
点击此处可从《特殊钢》下载全文 |
|
