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熔模铸造工艺 污染物的控制 Investment casting process—Pollutants control ICS 77.140.80 CCS J 31 中华人民共和国国家标准 GB/T 32251—2024 代替 GB/T 32251—2015 2024-08-2 3发布 2024-08-2 3实施 国家市场监督管理总局 国家标准化管理委员会 发 布 目 次 前言 ····································································································· Ⅲ 1 范围 ·································································································· 1 2 规范性引用文件 ······················································································ 1 3 术语和定义 ··························································································· 2 4 污染物种类及排放限值 ··············································································· 2 5 污染物监控要求 ······················································································ 4 6 污染物监测采样与检测方法 ·········································································· 4 6.1 污染物监测采样 ················································································· 4 6.2 检测方法 ························································································· 4 7 污染物防护措施 ······················································································ 5 7.1 蜡模制备过程污染物防护措施 ··································································· 5 7.2 型壳(型芯)制备过程污染物防护措施 ························································· 5 7.3 熔炼与浇注过程污染物防护措施 ································································ 6 7.4 清理与修整过程污染物防护措施 ································································ 6 7.5 铸件质量检测过程污染物防护措施 ······························································ 6 GB/T 32251—2024 Ⅰ
GB-T 32251-2024 熔模铸造工艺 污染物的控制
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