用光滑试样慢应变速率拉伸法研究了X60管线钢在含水土壤中的应力腐蚀。
Stress corrosion cracking of an X60 pipeline steel in soil containing water has been investigated using slow strain rate test.
采用有限元法对低匹配条件下x 80钢级管线钢焊接接头的变形能力进行了研究。
The deformability of under-matched X80 grade pipeline steel welding joint was studied through Finite Element Method.
悬吊法中，管线受力、位移明确，并通过吊索不断调整管线的位移和受力点。
In the suspension method, the force and displacement of pipeline are clear, and the displacement and force point of pipeline are adjusted continuously via the sling.
文章在介绍漏磁法无损检测的基本原理的基础上，详述了在役管线无损检测设备的总体结构及各部分的设计。
On the basis of the principle of leaky magnetic flux detecting, the design of the detecting equipment of working pipelines is expatiated including the overall structure and each part.
采用负压波法检测管线泄漏信号。
The negative pressure wave method was proposed for a pipeline leak detection system.
附加流速法通过向节流管线内注入轻质的附加流体降低了节流管线的压降，可以很好的解决上述的压井难题。
Additional flow rate (AFR) method can overcome this problem beautifully by inject a kind of light and thin fluid into choke line to drop its pressure loss.
通过对管线仪特征比值定深法的分析，获取了特征比值与管线深度变化的关系；
By analyzing the characteristic ratio method of calculating underground pipeline depth, the relation between characteristic ratio and pipeline depth was obtained.
设计了一套完整的基于瞬态模型法和声波泄漏检测法的高压输气管线泄漏试验装置。
Based on transient model method and acoustic leak detection method, a complete set of high-pressure gas pipeline leak experimental device is designed.
在悬空管线测量中，对于管径大、悬空高的管线，用普通三角高程法测量很难满足精度要求，而用切线法测量则很容易达到精度要求。
When surveying major diameter and higher hanging pipeline, common trigonometric leveling can't meet precision requirement, but tangent method surveying can meet precision requirement.
首次针对国产X70管线钢，应用电化学渗氢法研究了硫化氢分压对HIC性能的影响。
Electrochemical permeation hydrogen method was firstly adopted to study the influence of H2S partial pressure on HIC properties of domestic X70 pipeline steels.
管线水击波速的常用测量方法有波前法和周期法。
A common way to determine wave speed is by experiment, which includes wave - front method and wave periods method.
采用热膨胀法和金相法相结合测绘管线钢x 80的CCT曲线，并研究冷却速率对组织和硬度的影响规律。
The CCT curves of pipeline steel X80 were drawn by adopting dilatometer and metallographic method, and the effects of cooling rates on microstructure and hardness of the steel were studied.
管线探测的难点是在非金属管线，当采用地质雷达方法无法取得良好的成果时，可以采用高密度电阻率法这一高新技术。
The difficulty in pipe-detecting is the non-metallic pipe When the use of ground penetrating radar can not achieve good results, we can use another high-tech-high-density resistivity.
详细介绍了热分析法的原理及其具体的实现方法，同时对X80管线钢与Q235钢进行了试验，测量了其冷却过程的相变点。
The principle of thermal analysis method and the procedure were introduced in detail. At the same time, the deformation temperature of pipe line X80 steel and Q235 steel were determined.
采用弹塑性有限元法，结合非线性屈曲理论，分析了受初始几何缺陷影响的管线钢管在内压作用下的非线性屈曲。
Secondly, with the first mode of eigenvalue analysis on SSRS as the initial disfigurement, nonlinear buckling loads are obtained by nonlinear buckling analysis.
提出的管头定位法有利于各种复杂要求的管线铺设。
Based on a method of positioning by the nodule of pipeline, various pipeline laying can be conveniently realized.
本文在分析国内外现有的防腐层检测技术的基础上，提出了地下金属管线防腐层状态检测的新方法----电流梯度法。
Three pipeline coating detection technologies, multiple-frequency current method, ground potential-electrical field method, and pipe-to-soil potential method, are introduced.
本文在分析国内外现有的防腐层检测技术的基础上，提出了地下金属管线防腐层状态检测的新方法----电流梯度法。
Three pipeline coating detection technologies, multiple-frequency current method, ground potential-electrical field method, and pipe-to-soil potential method, are introduced.
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