ICS27.020 CCSJ31 团 体 标 准 T/CFA020101043—2022 压缩机蜗壳球墨铸铁件技术规范 Technicalspecificationofcompressorvoluteductileironcastings 2022-03-17发布 2022-06-17实施 中国铸造协会  发布 全国团体标准信息平台 全国团体标准信息平台 T/CFA020101043—2022 I 目次 前言.....................................................................................................................................................................III 引言.......................................................................................................................................................................IV 1范围...................................................................................................................................................................1 2规范性引用文件...............................................................................................................................................1 3术语和定义.......................................................................................................................................................1 4技术要求...........................................................................................................................................................1 4.1铸造附铸试样...........................................................................................................................................1 4.2铸件本体试样...........................................................................................................................................3 4.3几何形状和尺寸公差...............................................................................................................................3 4.4重量公差...................................................................................................................................................3 4.5表面质量...................................................................................................................................................3 4.6无损检测...................................................................................................................................................3 4.7密封性.......................................................................................................................................................4 5试验方法...........................................................................................................................................................4 5.1试块和试样...............................................................................................................................................4 5.2化学成分分析...........................................................................................................................................4 5.3力学性能试样...........................................................................................................................................4 5.4金相组织检验...........................................................................................................................................4 5.5几何形状与尺寸公差检验.......................................................................................................................4 5.6重量公差检验...........................................................................................................................................4 5.7表面质量检验...........................................................................................................................................4 5.8无损检测...................................................................................................................................................5 5.9密封性检验...............................................................................................................................................5 6检验规则...........................................................................................................................................................5 6.1取样批次.................................................................