用65 t模铸锭锻造9Cr2Mo辊轴的研制  

Development of 9Cr2Mo Roller Shafts Forged with 65 t Mold Ingots

作　　者：温培建 刘世晓 王素娟 桑学祥 孙倩 WEN Peijian;LIU Shixiao;WANG Sujuan;SANG Xuexiang;SUN Qian(Jinlei Technology Co.,Ltd.,Jinna 250000,China)

机构地区：[1]金雷科技股份公司,山东济南271104

出　　处：《山东冶金》2024年第4期27-29,共3页Shandong Metallurgy

摘　　要：采用重达65 t模铸锭,经合理策划冶炼、锻造、热处理工艺,成功研制9Cr2Mo辊轴锻件。冶炼优化浇注过程参数;锻造增加高温扩散,减小偏析,锻造过程压实锻透;热处理调质球化保证回火时间充足。锻件探伤合格,组织和硬度均满足技术要求。A 9Cr2Mo roller shaft forging has been successfully developed using a 65 t mold ingot and reasonable planning of smelting,forging,and heat treatment processes.The casting process parameters for smelting were optimized.Forging increases high temperature diffusion,reduces segregation,and ensure compacts and penetrates in the forging process.Heat treatment and tempering spheroidization ensure sufficient tempering time.The forgings pass the flaw detection,and the microstructure and hardness can meet the technical requirements.

关 键 词：9CR2MO钢 钢锭 辊轴锻件 高温扩散 热处理 

分 类 号：TG317[金属学及工艺—金属压力加工]