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| GGG40.3球铁阀体铸件的研制 | |
| 引用本文： | 应浩,潘东杰,王德寅. GGG40.3球铁阀体铸件的研制[J]. 现代铸铁, 2009, 0(2) |
| 作者姓名： | 应浩 潘东杰 王德寅 |
| 作者单位： | 1. 浙江省机电设计研究院有限公司,浙江,杭州,310002 2. 杭州万龙机械有限公司,浙江,萧山,311200 |
| 摘 要： | 介绍了生产GGG40.3球铁阀体铸件的试验设备、原材料以及试验方法,分析了金相显微组织、化学成分、热处理工艺对低温冲击性能的影响,研究了w(Si终)、w(Ni)量对低温冲击性能的影响。结果表明:随着w(Si)量的降低,球墨铸铁的低温冲击性能和伸长率逐渐提高,而抗拉强度能够维持在一定水平;同时指出w(Si终)量控制在2.00%～2.20%为最佳,建议不添加Ni元素。 |
| 关 键 词： | GGG40.3球铁 阀体铸件 低温冲击性能 w(Si终)量 |
Development of GGG40.3 Grade Nodular Iron Valve Body Casting |
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| YING Hao,PAN Dong-jie,WANG De-yin. Development of GGG40.3 Grade Nodular Iron Valve Body Casting[J]. Modern Cast Iron, 2009, 0(2) | |
| Authors: | YING Hao PAN Dong-jie WANG De-yin |
| Affiliation: | 2(Zhejiang Mechanical-Electrical Design and Research Institute; Hangzhou 310002; China; 2.Wanlong Machinery Co.Ltd.; Xiaoshan 311200; China); |
| Abstract: | Test equipments,raw materials and test method used for production of GGG40.3 grade nodular iron valve body casting was introduced.The influences of microstructure,chemical composition and heat treating process on the low -temperature impact toughness was analyzed.The influence of Si and Mn final contents on the low -temperature impact toughness was investigated.The result showed that,with decreasing of Si content,the low-temperature impact toughness and elongation of nodular iron increased gradually,and the... |
| Keywords: | GGG40.3 grade nodular iron valve body casting low-temperature impact toughness final Si content |
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