Corresponding measures to improve internal corrosion prevention of natural gas pipeline are presented based on the analytical results.
根据分析得到的结果提出了相应的改进天然气管线防腐方法及措施。
When corrosion mechanism was studied for internal corrosion of gas pipeline, internal corrosion degree of pipeline should be evaluated.
当研究天然气管道内腐蚀机理时，有必要对管道进行内腐蚀程度的评价。
Internal corrosion control technology in pipeline includes gravity drop method to measure corrosion speed and pour into anti-corrosion doze.
输气管道内腐蚀控制技术包括采用失重挂片法测量管道内腐蚀速度和加注缓蚀剂等。
The factors causing pipe internal corrosion and precipitate are introduced and the measured against internal corrosion and precipitate discussed.
分析了管道内腐蚀和产生沉积物的因素，以及抑制内腐蚀和沉积物的措施。
The formation of impurity in the pipeline, the internal corrosion mechanism as well as the harm of the internal corrosion to the pipeline operation was introduced.
介绍了成品油管道内杂质形成情况、管道内腐蚀机理及对管道运行的危害。
Traditional coatings have many defects in the application of pipeline internal corrosion protection and the problem of inner joint wrap has not been solved till now.
传统涂料在管道内防腐的应用上存在着许多缺陷，而且内补口问题始终没得到解决。
The corrosion of the oil gathering pipelines in Zhongyuan oil Field featured internal corrosion and the most corrosion failures occurred at the bottom of the pipelines.
中原油田集输管线的腐蚀特点均以内腐蚀为主，腐蚀穿孔多发生在管线底部。
The aging of concrete DAMS is manifested by surface carbonization, freeze-thaw, abrasion, weathering, internal corrosion, frost-heaving, cracks, water erosion and et al.
混凝土坝老化表现在表层碳化、冻融、风化、内部溶蚀、冻胀、裂缝发育以及体积改变等。
By statistically analysing those accidents of gas trunk line at Sichuan OaS Field, the paper concludes that the internal corrosion is the main reason in pipeline accidents.
本文通过对四川气田输气干线事故的统计分析，说明了内腐蚀是管道事故发生的主要原因。
This paper includes the control methods of internal corrosion, selection procedures of inhibitor, calculation procedures of dosage estimation and other relative information.
本文包括内腐蚀控制方法，缓蚀剂选择步骤、缓蚀剂量估算计算步骤和其它有关资料。
In this paper, Fuzzy comprehensive evaluation method was used to evaluate internal corrosion degree of gas pipeline and field examples were used to verify the feasibility of it.
本文提出了利用模糊综合评价方法对天然气管道内腐蚀程度进行综合评价的具体方法，并通过应用示例验证该评价方法的可行性。
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.
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。
This coating technology can improve pipeline operation efficiency, reduce costs and prolong pipeline service life, so it is suitable for the internal corrosion control of short distance pipelines.
这种方法可提高管道输送效率、降低成本、延长管道使用寿命，比较适合于短距离的管道内防腐。
For the internal parts specified in Vessel Standard such as lugs and support rings, corrosion allowance shall conform to the stipulations in it.
容器标准中规定的内件，如耳轴及支撑环的腐蚀余度应符合标准中的规定。
Loose hole plating chromic layer by weight used in the sliding friction parts and heat resistance, corrosion, wear parts, such as internal combustion engine cylinder lumen, piston rings.
松孔镀铬层应用于受重压的滑动摩擦件及耐热、抗蚀、耐磨零件，如内燃机汽缸内腔、活塞环等。
The key factor of generator safe operation is affected by the corrosion of water internal coaling generator's hollow copper conductor.
水内冷发电机空芯铜导线的腐蚀问题是影响发电机安全运行的重要因素。
In this paper, the corrosion appearances of the aluminium internal end cover and its reasons are described.
叙述了铝质内端罩的腐蚀现象，分析了腐蚀原因。
Construction quality of internal and external anti-corrosion is directly related to service life of the tubes, and the comprehensive cost of the steel tube is relatively high.
内外防腐的施工质量直接和管道的使用寿命有关，且钢管的综合造价较高。
Material and medium valve internal contact parts are made of structural ceramic materials, to avoid direct contact with the media, and produce corrosion may.
阀门内部材质与介质接触部分均采用结构陶瓷材料，避免与介质直接接触，而产生腐蚀的可能。
The joints welded by newly developed non-crystal metal welding process have smooth surfaces, with excellent intercrystalline corrosion resistance and no internal and external welding beadings.
非晶体金属焊接工艺新颖，焊接接头表面光滑、内外无焊瘤、抗晶间腐蚀性能良好。
Reinforced Concrete corrosion is a main cause for structure destruction and it is due to the internal rebar corrosion in many instances.
钢筋混凝土腐蚀是引起结构破坏的主要原因，而大多数情况又是由于其内钢筋腐蚀引起的。
The reason why corrosion was seen on the Alaska Pipeline; internal inspection should be strengthened to avoid corrosion pitting.
阐述了阿拉斯加管道腐蚀产生的原因，提出了为避免管道因腐蚀而穿孔，应加强管道内检测的措施；
Refining the use of stainless steel internal mechanical, corrosion-resistant, durable.
内部机件采用不锈钢精制，抗腐蚀，经久耐用。
Internal coating used in high pressure, large diameter and long distance gas pipeline has two main functions, one of them is anti corrosion and the other is drag reduction.
高压、大口径、长输天然气管道采用内涂层主要具有两大功能，一是防腐蚀，二是减阻。
The corrosion protection measures were recommended such as DPC internal coating for the new pipes and continuous drip addition of corrosion inhibitor for the existing Wells.
提出了新井采用DPC内涂层套管，老井实施井下连续滴加缓蚀剂的内防腐蚀控制措施。
The results showed that the hardness of oxide films increased from the surface to the substrate, because electrolyte corrosion between the internal and external surfaces was different.
结果表明：阳极氧化膜因内外表面受到电解液的腐蚀程度不同而表现为氧化膜的硬度自膜层表面到基体逐渐升高。
In this paper, the corrosion of materials in carbonaceous atmospheres at high temperatures is reviewed, including metal dusting and internal carburization.
本文综述了材料在高温含碳气氛中的腐蚀，包括金属粉化和碳化，讨论了材料在含碳气氛中的腐蚀机理和腐蚀动力学。
In this paper, the corrosion of materials in carbonaceous atmospheres at high temperatures is reviewed, including metal dusting and internal carburization.
本文综述了材料在高温含碳气氛中的腐蚀，包括金属粉化和碳化，讨论了材料在含碳气氛中的腐蚀机理和腐蚀动力学。
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