Defect formation and mechanism of ZA alloy made in continuous casting by heated mold | |
Ma, Y; Hao, Y; Yan, FY; Liu, HJ![]() | |
2003 | |
会议名称 | METALLURGICAL AND MATERIALS PROCESSING: PRINCIPLES AND TECHNOLOGIES, VOL 1 |
会议录名称 | METALLURGICAL AND MATERIALS PROCESSING: PRINCIPLES AND TECHNOLOGIES, VOL 1
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页码 | 1287-1299 |
出版地 | 184 THORN HILL RD, WARRENDALE, PA 15086-7514 USA |
出版者 | MINERALS, METALS & MATERIALS SOC |
摘要 | The continuous directional solidification technique of five kinds of special ZA alloys with eutectic, peritectic and eutectoid transformation under the condition of continuous casting by heated mold was studied. The mechanism of surface defects appearing in ZA alloy line was discussed and the structure of some defects were analyzed by SEM. The results show that only when the fitting of various technique factors, pressure head, outlet temperature, pulling speed and cooling condition are reasonable under a certain range, can the ZA alloy smooth line be continuously pulled out. Unreasonable techniques will result in hot tear, rough surface, mush outlet, leaking and other defects. The shape and location of solid-liquid zone have an important influence on the formation of the above defects. When the solid-liquid zone is located in the mould outlet or inner mould, the surface of solidification will protrude into the inner mould. If the remaining liquid cannot counteract the solidification contraction, a rough surface will appear. If the solidification surface further into the mould, the ingot in the mould will have a great friction force when pulling and will form. a hot tear. When the solid-liquid zone is moved out of mould, the solidification surface will turn into a plane, which easily results in leaking. A vibration or unstable operation will cause an ingot. winding during pulling. |
收录类别 | CPCI |
语种 | 英语 |
WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
WOS类目 | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Composites |
WOS记录号 | WOS:000182493000108 |
引用统计 | 无
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文献类型 | 会议论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/38369 |
专题 | 国际教育学院 |
通讯作者 | Ma, Y |
作者单位 | Gansu Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China |
推荐引用方式 GB/T 7714 | Ma, Y,Hao, Y,Yan, FY,et al. Defect formation and mechanism of ZA alloy made in continuous casting by heated mold[C]. 184 THORN HILL RD, WARRENDALE, PA 15086-7514 USA:MINERALS, METALS & MATERIALS SOC,2003:1287-1299. |
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