Analysis of Inclusions in JG4246A Revert

Hao Zhibo; Luo Heli; Li Shangping; Han Shaoli; Han Guangwei

doi:10.15980/j.tzzz.2022.08.027

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Analysis of Inclusions in JG4246A Revert
Vol. 42, Issue 8, Pages: 1053-1056(2022)
Published： 2022 ，
DOI： 10.15980/j.tzzz.2022.08.027

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Hao Zhibo, Luo Heli, Li Shangping, et al. Analysis of Inclusions in JG4246A Revert. [J]. Special Casting & Nonferrous Alloys 42(8):1053-1056(2022)
DOI：

Hao Zhibo, Luo Heli, Li Shangping, et al. Analysis of Inclusions in JG4246A Revert. [J]. Special Casting & Nonferrous Alloys 42(8):1053-1056(2022) DOI： 10.15980/j.tzzz.2022.08.027.

摘要

分析了不同类别JG4246A返回料清洗处理前后表面夹杂物种类及分布。结果发现，返回料清洗前表面以与型壳反应后生成的Al

夹杂物为主，面积分数为24%～25%

同时存在少量HfO

、富Ti氧化物及富Zr和Hf的氧化物。返回料处理后，表面仍存在一定数量Al

夹杂物，少量富Hf、富Zr和Si夹杂。返回料100%清洗并熔化后浮渣较多，无法满足返回料再利用需求，需进一步提高返回料母合金洁净度。

Abstract

The kinds and distributions of inclusions in the surface of different types of JG4246 A revers before and after cleaning treatment were systematically analyzed. The results indicate that the Al

inclusions forming after the reaction with the shell are mainly on the surface of the revert before cleaning treatment

accounting for about 24%～25% of the area fraction. At the same time

there are a small amount of HfO

Ti-rich inclusions and Zr-and Hf-rich inclusions

while there are still a certain amount of Al

inclusions

a small amount of Hf-rich inclusions and Zr-and Si-rich inclusions on the surface of the revert after cleaning treatment. After 100% cleaning treatment reverts were melted

and the molten steel with a lot of scum could not meet the demand for reuse of the reverts. It is necessary to further improve the cleanliness of the revert master alloy.