| 低硫铁液用蠕化剂及其生产性试验研究 |
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| 引用本文： | 子澍,严启光,杨大平,周尔范,刘觉. 低硫铁液用蠕化剂及其生产性试验研究[J]. 现代铸铁, 2012, 32(1): 24-27 |
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| 作者姓名： | 子澍 严启光 杨大平 周尔范 刘觉 |
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| 作者单位： | 1. 北京工业大学材料科学与工程学院,北京,100124
2. 北京内燃机总厂,北京,100021 |
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| 摘 要： | 介绍了供感应电炉熔炼低硫铁液生产蠕墨铸铁用的三种REMgTiSiFe合金蠕化剂的化学成分,并用其中的#1、#2和#3号蠕化剂进行了蠕墨铸铁的生产性试验。分析了铁液的蠕化衰退问题和铸造性能问题。指出:这种类型蠕化剂的蠕化效果随时间的衰退不明显;用该合金蠕化剂生产蠕墨铸铁,其铁液的铸造性能和线收缩率与HT200的线收缩基本相同,而体收缩率比HT200的要大一些。
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| 关 键 词： | 低硫铁液 蠕墨铸铁 蠕化剂 衰退 铸造性能 |
Productive Experiment and Investigation on Vermicularizers Used for Low Sulphur Iron Melt |
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| ZI Shu , YAN Qi-guang , YANG Da-ping , ZHOU Er-fan , LIU Jue. Productive Experiment and Investigation on Vermicularizers Used for Low Sulphur Iron Melt[J]. Modern Cast Iron, 2012, 32(1): 24-27 |
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| Authors: | ZI Shu YAN Qi-guang YANG Da-ping ZHOU Er-fan LIU Jue |
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| Affiliation: | 1 .College of Materials Science and Engineering, Beijing Polytechnic University, Beijing 100124, China; 2.Beijing General Internal Combustion Engine Factory, Beijing 100021, China) |
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| Abstract: | An introduction was given to three different chemical compositions of REMgTiSiFE alloys used for production of vermicular iron with induction furnace-melted low sulphur iron melt. The experiments to produce vennicular iron were carried out by using #1 ,#2 and #3 alloys of them. The problems with the vermicularizing effect fading and cast-ability were analyzed. It was pointed out that the vermicularizing effect fading tendency with holding time of the vermiculasr iron treated with this type of vermiculizing alloys was not obvious. The cast-ability and linear contraction rate of the vermicular iron produced with this type of alloys were similar to that of the HT200 grade gray iron, however its volumetric contraction rate was some higher than that of HT200 gray iron. |
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| Keywords: | low sulphur iron melt vermicular graphite cast iron vermicularizer fading cast-ability |
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