1) pipe scale
管垢
1.
The scaling reason, the composition and content of pipe scale of ammo-nia water pipe in coking factories are studied and meaningful suggestions are putforward to reduce and get rid of it.
本文研究了焦化厂氨水管道的结垢原因,管垢组成及含量等,并为管垢的减少和除去提出了有意义的建议。
2.
This paper makes systematic analysis on the geneses and harmfulness of pipe scale in urban water pipeline,and advances some measures for preventing the scale in urban water pipeline.
系统地分析了城市输水管道中管垢的成因和危害,并提出了城市输水管道中管垢的防治措施。
3.
The results show that when the pipe scale tends to be stable,the proportion of Fe2+ to total Fe is between 30% and 70%.
结果表明,当管垢层趋于稳定时,管垢中的亚铁/总铁值为30%~70%,且在相同的管径下,间歇运行的管网其管垢中的亚铁含量比连续运行的管网要高;垢层中所含的元素有Zn、Fe、Ca、S、Si,其中以Zn和Fe为主;管垢中的腐蚀产物部分是以晶体状态存在的,晶体的成分主要为α-Fe(OH)2、Fe2O3、CaCO3、CaSiO3及其络合产物;管道的腐蚀速率随水温和流速的提高而加快,间歇运行管网的管道腐蚀速率比连续运行的快。
4) corrosion scale
腐蚀管垢
1.
Scanning electron microscopy,X-ray fluorescence spectroscopy,X-ray diffraction and X-ray photoelectron spectroscopy were used to analyze the microstructure,chemical composition,crystalline structure and compound constitute of the corrosion scale from cast iron pipe and galvanized steel pipe in drinking water distribution systems.
使用扫描电镜(SEM)、X荧光光谱分析(XRF)、X射线衍射分析(XRD)以及X光电子能谱(XPS)对给水管网中铸铁管和镀锌钢管上的管内壁腐蚀管垢进行微观形态、化学组成、晶体结构和化合物构成等物理化学特征分析。
6) Incrustation of pipe
管路结垢
补充资料：管山吃山﹐管水吃水
1.比喻干什么事情﹐就靠什么生活。
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