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The Influences of liners and Magnetic Flux Concentrator on Induced Joule Heat in Hot Extrusion Billet

机译:衬板和磁通量集中器对热挤压坯料中感应焦耳热的影响

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摘要

In the production process of,the billet should be heated to certain temperature before hot extrusion by induction heating.In this paper,the possible effect factors including liners,magnetic flux concentrator (MFC) for tube billet Joule heat generation are studied using numerical method.Through analyzing the permeability,the dimension and the position of MFC,it is found that the usually used magnetic flux concentrator can increase the temperature on the end of the billet.It is also found that the stainless steel liners have little effect on the Joule heat generation along circumferential direction.
机译:在生产过程中,应通过感应加热将坯料加热到一定温度,然后再进行热挤压。本文采用数值方法研究了可能的影响因素,包括衬里,磁通量集中器(MFC)对管坯的焦耳热的产生。通过分析MFC的磁导率,尺寸和位置,发现常用的磁通集中器可以提高钢坯端部的温度。另外,发现不锈钢衬套对焦耳热的影响很小。沿圆周方向产生。

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