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.
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。
The forming mechanism of pinhole defect in no-solvent polyurethane coat on centrifugal nodular cast iron pipe is analyzed, some effective measures to eliminate offered.
分析了离心球铁管无溶剂聚氨酯涂层针孔缺陷形成的机理，给出了消除这一缺陷的有效措施。
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.
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。
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.
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。
This paper introduced that horizontal centrifugal casting technology is used to develop the composite acicular spheroidal graphite cast iron collar for tension reducing mill of Baogang pipe mill.
介绍了采用卧式离心铸造技术，试制宝钢钢管轧机使用的复合针状球铁张减机辊环的过程。
The annealing process of centrifugal ductile cast iron pipe by the heated mould method is studied.
研究了热模法离心铸造球铁管的退火工艺。
The distribution of chemical composition and microstructure for cracking socket of centrifugal cast ductile iron pipe, and the effect of them on the cracking behavior have been studied.
分析了离心球铁管开裂承口的组织、成分分布，探讨了组织、成分对承口开裂的影响。
The distribution of chemical composition and microstructure for cracking socket of centrifugal cast ductile iron pipe, and the effect of them on the cracking behavior have been studied.
分析了离心球铁管开裂承口的组织、成分分布，探讨了组织、成分对承口开裂的影响。
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