摘要
评述了目前灰铸铁件在铸造生产中计算浇注系统最小截面积的常用水力学公式及其他几种常用的经验公式之特点和存在的不足;分析了这些公式共同存在的使用前提不明、适用范围窄、通用性差等缺点。专题研究及阐述了一种用统计学方法回归推算出的适用范围宽、操作简便快捷、实用性强的灰铸铁件浇注系统最小截面积的计算公式,并对其与近十几年来众多成功的生产实例进行了比照,证明其具有良好的可靠性和适用性。
This article addresses the disadvantages of the hydraulic calculating formula together with other experiential ones often used in calculating minimum section of the gray casting iron pouring system. These disadvantages include the narrow application, poor universality and the undefined premise in use. In this study, a new calculating formula- statistical regression formula- characterized with the wider application, simpler operation and better practicality will be introduced and analyzed. In order to prove its better reliability and application, this new calculating formula will be contrasted with numerous successful manufacture examples in recent ten years.
出处
《机械》
2009年第4期21-25,共5页
Machinery
关键词
灰铸铁件
浇注系统
最小截面积
有效浇注时间
gray cast iron
pouring system
minimum section
effective pouring time
