刀剪材料9Cr14Mo电渣锭尾夹杂物的分析  

Study on non-metallic inclusion in the end of electro-slag remelting ingot for the 9Cr14Mo steel used as cutlery material

作　　者：周文[1] 李晶[1] 王亮亮[1] 李积回 

机构地区：[1]北京科技大学冶金与生态学院,北京100083 [2]阳江市十八子集团有限公司,阳江529511

出　　处：《材料与冶金学报》2011年第B03期100-102,105,共4页Journal of Materials and Metallurgy

摘　　要：研究了刀剪材料9Cr14Mo电渣锭尾夹杂物类型、尺寸及含量.结果表明:电渣前及电渣后锭尾的夹杂物主要是含钛的复合夹杂物,电渣后锭尾有内生夹杂物的形成,导致复合夹杂物中Si、Mn、Cr含量升高,电渣后锭尾夹杂物含量升高,且夹杂物尺寸变大.电渣前钢中夹杂物含量为0.633 mg/kg,电渣后锭尾夹杂物含量为4.38 mg/kg.显微夹杂物的数量,电渣前为11.82个/mm2,电渣后锭尾为15.08个/mm2;提出了控制电渣后锭尾夹杂物含量的措施.Types, size and content for the non -metallic inclusion in the end of 9Crl4Mo Electro -slag remelting （ESR） ingot are analyzed. The inclusion composition is main Titanium compounds in the consumable electrode and the end of ESR ingot . However, owing to endogenous inclusion formation in the end of ESR ingot ; The content of Si, Mn, Cr in inclusion and gross weight of inclusion are increased The size of inclusion in the end of ESR ingot is bigger than that of in the consumable electrode. The gross weight is 0.633 mg/kg for consumable electrode and 4. 38 mg/kg for the end of ESR ingot. The number of microscopic inclusions is 11.82 /~/mm2 for consumable electrode and 15.08 ~J＂/mm2 for the end of ESR ingot. Some measures on controlling inclusion content in the end of ESR ingot are put forward.

关 键 词：9Cr14Mo 电渣重熔 夹杂物 洁净度 

分 类 号：TF142[冶金工程—冶金物理化学]