输配水管网采用了球墨铸铁管和钢管。
Graphite cast iron pipes and steel pipes are used for the water supply and distribution pipe network.
利用等温锻造方法可生产优质的球墨铸铁管。
Using the method of isothermal forging spheroidal graphite cast iron pipe of good quality can be produced.
球墨铸铁管件。
物理性质与球墨铸铁管类似，但在延伸率等较多方面均劣于球墨铸铁管，但灰口铸铁管价格适中。
Its physical property is similar to that of spheroidal graphite iron tubes, but some aspects such as elongation percentage are inferior to the spheroidal graphite iron tubes.
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.
介绍了国内外无溶剂聚氨酯涂料在球墨铸铁管防腐领域的应用情况以及此涂料涂装工艺的研究进展。
The application of solvent free polyurethane coating in the field of anticorrosion coating for ductile iron pipes and the progress of this painting technology were introduced in this paper.
这两种特殊水泥涂层均适用于污水管道用球墨铸铁管的内防腐，提高抵抗污水中酸碱成分的侵蚀能力。
The two special cement coatings are applicable to sewage pipeline internal corrosion for ductile iron pipe, improve the ability to resist the erosion of acid components in sewage.
简要介绍了球墨铸铁管材料的特点，特别探讨了球墨铸铁管在新领域——高压消防水系统中应用的可行性。
The characteristics and advantages of ductile iron material are briefly described in this article, especially, the feasibility about being used in high pressure fire fighting system is discussed.
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.
本文介绍了RPM管的主要性能，并与塑料管、钢管、球墨铸铁管及钢筋混凝土管的相应性能作了分析和比较。
The main properties of RPM pipe are introduced and compared with the properties of the plastic pipe, steel pipe, ductile iron pipe and reinforced concrete 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.
介绍了大口径球墨铸铁管的主要性能特点，并通过黄河水源太原市城市给水工程，就大口径球墨铸铁管在设计与施工中的要点进行了论。
Main points in design and construction concerning the large diameter nodular cast iron pipeline are described by means of Taiyuan water supply engineering from the Huanghe River.
文章分析中国新加坡工业园区启动区过路输水钢管爆裂原因，后由苏州工业园区开发有限公司提出整改方案，采用球墨铸铁管代替原钢管。
This paper analyses the causes of water supply pipes burst under the roads in Suzhou Sino-Singapore Industrial Park and puts forward appropriate modification programs.
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.
从市场分析入手，对EPC法与传统砂型铸造工艺进行了比较，介绍了EPC法生产球墨铸铁管件的工程设计内容及对策，并提出了工艺设计的关键点。
Based on analysis of market conventional sand mold cast process has been compared with EPC process of which design and measures for s. g. iron pipes have been introduced as well as key of technology.
本文主要针对近年来普遍使用的球墨铸铁管在套用已有的水力计算公式进行计算时产生偏差较大的问题，对常用的几个水头损失计算公式进行了一些分析。
This paper mainly points at produced bigger deviation problem when apply formulas about the hydraulic calculation of DIP in recent years, and analyses some common formulas about head-loss.
主要介绍了北台球墨铸铁管厂退火炉时序脉冲燃烧控制系统的组成、控制原理和动态性能，指出时序脉冲燃烧控制方式的优点以及在引进应用中应注意的问题。
The composition, control principle and dynamic characteristics of time series pulse combustion control system applied to the annealing furnace in Beitai Ductile Cast Iron Pipe Plant are introduced.
介绍了球墨铸铁管件消失模铸造工艺的计算机辅助设计CAD软件的设计原理、操作方法，该CAD软件可提高消失模铸造球铁管件的工艺设计效率和设计精度。
It is introduced the design principal and operation method of CAD software for vanishing-mould casting process of nodular cast iron pipe. It can raise the design efficiency and precision.
主营产品有球墨井盖、复合树脂井盖、钢钎水泥井盖、镀锌钢格板、合金高分子井盖、球墨铸铁井盖、铸铁井盖、花栏、铸铁管等。
Main products include ductile manhole covers, composite resin covers, drill rod cement covers, galvanized steel grating, polymer alloy covers, cast iron manhole covers, flower bar, cast iron pipe.
主营产品有球墨井盖、复合树脂井盖、钢钎水泥井盖、镀锌钢格板、合金高分子井盖、球墨铸铁井盖、铸铁井盖、花栏、铸铁管等。
Main products include ductile manhole covers, composite resin covers, drill rod cement covers, galvanized steel grating, polymer alloy covers, cast iron manhole covers, flower bar, cast iron pipe.
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