大锻件统计学t检验法的研究和应用

Research & Application on the Test Methodt of Statistics for Heavy Forgings

根据大锻件的单件小批量生产特点和统计学的基本理论方法,论述了大锻件的t检验方法,并给出了具体应用示例。该方法可用于大锻件生产工艺的连续性或可计量参数的科学分析和生产验证,还可用于大锻件的质量分析和判断,能用于构建新一代大锻件工艺与产品质量的控制系统,帮助实现稳定和提升大锻件工艺和产品质量的控制水平。

Based on the characteristics of single piece or low volume production for heavy forgings and the theoreti-cal methods of statistics, the test method t for heavy forgings is introduced and the actual detail application examples is given. The method is useful to analyze scientifically and verify practically the continuous or measurable process parame-ters of heavy forgings manufacturing, and to analyze and make judgment on the quality problems of heavy forgings, and to establish the new generation of the process and product quality control system for heavy forging production and to pro-mote control level for heavy forgings steadily on the production process and product quality.