按铸造方法不同，分为连续铸铁管和离心铸铁管，其中离心铸铁管又分为砂型和金属型两种。
According to different casting methods, divided into continuous cast iron pipe and the centrifugal cast iron pipe, wherein the centrifugal cast iron pipe is divided into two types of sand and metal.
应用离心铸造工艺生产球墨铸铁管，连续快速提供化学成分和温度均合格的优质铁液是生产的关键环节之一。
One of keys of production of centrifugal casting pipe of s. g. iron is continuous and fast delivery of qualified base iron with proper chemical composition and temperature.
无承口离心排水铸铁管的安装和拆卸均非常方便，但要注意不锈钢卡箍橡胶密封接口的安装方法和管道局部支吊架的特殊要求。
When using centrifugal cast iron pipe, we should pay attention to its installation and technical requirements, such as that of stainless steel clasp and local support and hanger of pipe.
通过对离心球墨铸铁管性能的阐述，并与灰铸管、钢管的性能、安装方法、使用年限、综合效益相比，认为离心球墨铸铁管是理想的输卤管材。
Author considers that the centrifugal ball graphite cast iron pipe is a perfect material for brine transportation through comparing the performance of centrifugal ball graphite cast iron pipe.
为了提高水冷型离心机球墨铸铁管的成形率，降低废品率，对球墨铸铁管气孔、针孔产生的原因进行了分析，并提出了一些预防措施。
The paper reported the development and fine property of the nodular cast iron pipe used in gas pipeline, as well forecasted its market prospect.
喷镁球化工艺在生产离心铸造球墨铸铁管中取得了良好效果，提高了铸管质量，降低了生产成本。
Spraying Mg spheroidization technology in the production of centrifugally nodular cast iron pipes has achieved good effect in improving casting quality, reducing production costs.
喷镁球化工艺在生产离心铸造球墨铸铁管中取得了良好效果，提高了铸管质量，降低了生产成本。
Spraying Mg spheroidization technology in the production of centrifugally nodular cast iron pipes has achieved good effect in improving casting quality, reducing production costs.
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