摘要
介绍ML40Cr合金冷镦钢线材的化学成分及生产控制，通过热机轧制得到了较理想的力学性能和金相组织，其组织晶粒度达到10．5～11．0级；并对产品进行跟踪，结果用户退火时间由原来的18h缩短到16h，硬度HRB值同比其他厂家降低5-10，退火晶粒度达到8～8．5级，达到了用户10．9级标准件的性能要求。
To introduce the chemical composition and production process control of ML40Cr alloy cold heading steel wire rod. By using hot rolling, ideal mechanical property and metallurgical structure can be got. Structure grain class can be reached from 10.5 to 11. By following the products, the using results of customers are as follows ： the annealing time is cut short from 18 hours to 16 hours; compare with other company, HRB hardness value decreases by 5 - 10; annealing grain class can be reached from 8 to 8.5, which can meet the customers 10.9 class standard parts performance requirements.
出处
《金属制品》
2008年第4期20-21,共2页
Metal Products
关键词
ML40Cr合金冷镦钢
成分
生产工艺
ML40Cr alloy cold heading steel
composition
production process
