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nodular iron
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【机】 球状石墨铸铁
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详细解释：
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以下为句子列表：
英文: Abstract: It was verified through experiment and measurement that there was growth phenomenon taking place with nodular iron castings after graphitizing annealing at low temperature.The emergence mechanism and reason of the “ annealing growth nature” was
中文: 文摘:通过试验和测试，证实了球铁件经低温石墨化退火后存在的生长现象，并对这种“退火生长性”产生的机理及原因进行探讨，提出了防止措施。
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英文: Abstract: The constitution,process principle and parameters of a continuous desulphurization system used to desulphurize the base iron for nodular iron was introduced.The characteristics of the system and its operation instruction was explained.
中文: 文摘:介绍了一种炉外球铁原铁液连续脱硫系统的组成、工艺原理及有关参数，说明了该系统的使用方法及特点。
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英文: How is timing controlled to prevent nodular iron fade?
中文: 如何控制球铁孕育时间？防止石墨退化?
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英文: In order to avoid eutectic carbide, improve nodularity, increase nodule count and increase mechanical properties, three times of inoculations were adopted in the centrifugally cast nodular iron pipes production: a) inoculation in ladle; 2) pouring stream
中文: 摘要在离心铸造球墨铸铁管生产中，为防止共晶渗碳体析出，改善球化，增加石墨球数，提高力学性能，采用了三次孕育：(1)包内孕育；(2)浇注时随流孕育；(3)型内孕育。
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英文: The main reasons causing increased chilling tendency of nodular iron are as follows: using metal charge containing trace and alloy elements which can increase chilling tendency; molten iron being holded at high temperature too long; abnormal nodularizing
中文: 摘要引起球铁白口倾向大的主要原因是：炉料稳定性差、电炉保温、球化处理及铁液成分控制和孕育处理出现异常。
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