1) ductile cast iron pipeline
球墨铸铁管道
1.
Through the analysis of the experiment of the flexible joint ductile cast iron pipeline,the joint strength and the friction between the sand and pipelines were studied,and the resistance drawing strength of the pipelines was determined,which could be used as an index to evaluate their seismic performance.
目的对埋地球墨铸铁管道进行抗拉静载试验,分析管道接口力学性能以及砂土对管道产生的摩擦力,确定地震作用下管道接口抗拉拔强度,以该指标作为判断管道抗震性能的依据。
2) ductile cast iron pipe
球墨铸铁管
1.
To reduce the energy consumption of annealing furnace of ductile cast iron pipe, the measures of increasing entrance temperature of pipe, improving heat efficiency and changing the type of fuel are taken, the cost of pipe is decreased by 71 2 yuan/t and the effect of energy saving is very notabl
为了降低球墨铸铁管退火炉的能耗 ,采取了提高球铁管的入炉温度、提高炉子的热效率、改变燃料的种类等措施 ,使吨管成本降低了 71。
2.
The gas cavity and pinhole defects formed in the ductile iron pipes was analyzed to improve the qualified rate of the ductile cast iron pipes by water-cooling centrifugal casting,and to reduce the rejection rate.
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。
3) Ductile iron pipe
球墨铸铁管
1.
Study on the Properties of Ductile Iron Pipe Centrifugally Casted by Means of Resin Sand Coated Metal Mould;
覆膜砂离心铸造球墨铸铁管性能的研究
2.
A special polyurethane coating used for ductile iron pipe has been developed.
研制了一种专用于球墨铸铁管的聚氨酯涂层,研究了涂料配比对粘度、流平性、固化速度、附着力、硬度等涂料性能的影响,分析了工艺参数如温度、压力对涂层质量的影响。
4) ductile iron pipes
球墨铸铁管
1.
Progress in the painting technology of solvent free polyurethane coating for ductile iron pipes;
球墨铸铁管无溶剂聚氨酯防腐涂层涂装工艺研究进展
2.
On application of mechanical interface ductile iron pipes in metro
机械式接口球墨铸铁管在地铁中的应用
3.
The performance of coatings shows that this technology and apparatus are fit for th e anti-corrosion protective finishing on the ductile iron pipes.
介绍了球墨铸铁管防腐涂层喷涂设备和工艺,确定了喷涂的工艺参数。
5) nodular cast iron pipes
球墨铸铁管
1.
The merits and demerits of nodular cast iron pipes used in subway tunnel sections were analyzed, and the reasonable measures for overcoming the demerits were put forward to supply water in the sections safely and reliably.
对球墨铸铁管在地铁隧道区间应用的优、缺点进行了分析,并针对其缺点提出了合理的解决措施,以保证供水安全、可靠。
2.
This paper discusses on whether to adopt nodular cast iron pipes or steeliness converse rainbow pipes through a river trench in the first scheduled time water supply engineering of new waterhead terra City of Lang Fang, And explains with technical characters,engineering investment and safety for water supply.
在廊坊市新水源地一期供水土程中穿越河渠时是否对球墨铸铁管与钢制倒虹管的采用,进行方案比较,并从技术性能、工程造价、供水安全等方面进行了评述。
6) casting ductile iron pipe
球墨铸铁管
1.
The application of casting ductile iron pipe in municipal pipeline and prospect forecast;
浅析球墨铸铁管在城市管道中的应用及前景
2.
The application of casting ductile iron pipe in the No.5 line works of Beijing metro;
球墨铸铁管在北京地铁五号线工程中的应用
3.
The application of casting ductile iron pipe in water supply and drainage;
谈球墨铸铁管在给排水领域中的应用
补充资料：球墨铸铁
析出的石墨呈球形的铸铁。球状石墨对金属基体的割裂作用比片状石墨小，使铸铁的强度达到基体组织强度的70～90％，抗拉强度可达120kgf/mm2，并且具有良好的韧性。球墨铸铁除铁外的化学成分通常为：含碳量3.6～3.8％，含硅量2.0～3.0％，含锰、磷、硫总量不超过1.5％和适量的稀土、镁等球化剂。
球墨铸铁生产工艺简单，铸造性能比铸钢好（但比灰口铸铁差），成本低，因此，被广泛用来制作受力复杂，对强度和韧性以及耐磨性要求较高的零件，如曲轴、齿轮、高压缸、汽车底盘零件等。20世纪70年代全世界的球墨铸铁管的年产量达数百万吨。中国古代铸铁中亦有球状石墨的组织（见冶金史）。
球墨铸铁生产工艺简单，铸造性能比铸钢好（但比灰口铸铁差），成本低，因此，被广泛用来制作受力复杂，对强度和韧性以及耐磨性要求较高的零件，如曲轴、齿轮、高压缸、汽车底盘零件等。20世纪70年代全世界的球墨铸铁管的年产量达数百万吨。中国古代铸铁中亦有球状石墨的组织（见冶金史）。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条