摘要
研究了灰铸铁局部激冷后的组织及硬度变化特征,通过试验确定了使用冷铁的工艺参数。生产试验结果表明,机床导轨处使用冷铁激冷,能有效地提高导轨面的铸态硬度,且导轨面硬度均匀性和床身断面均匀性提高。
The structure and hardness of gray iron local chilled were studied. The technological parameters of chill have been established.The results show that as-cast hardness of slideway was promoted.The hardness homogenization of slideway and the section homogenization of lathe bed were improved by using chill over the slideway of lathe bed.
出处
《热加工工艺》
CSCD
北大核心
1996年第2期24-26,共3页
Hot Working Technology
关键词
激冷
组织
硬度
灰口铁
gray iron chill structure and hardness