查询词典 corrosion rim

The failure behavior of SS316L has been investigated under environment and stress coaction by corrosion fatigue device. It is indicated that the interactive actions of many kinds of corrosion types, such as dynamic stress, pitting corrosion, intergranuler corrosion, corrosion fatigue, material failure, are exist in the process of stainless steel failure.

本工作运用自制的腐蚀疲劳试验机，研究了在环境与应力协同作用下，316L不锈钢的失效行为和过程，证实了不锈钢的失效过程中存在着多种腐蚀类型的交互作用，阐述了动应力—点腐蚀—晶间腐蚀—腐蚀疲劳—失稳断裂的内在联系和相关性。

Herein through investigation on the collected CO2 corrosion data from different CO2-contained oil and gas fields, this study analyzed the serious damage and hazards on the gas production, summarized up the general rules of CO2 corrosion and its peculiarities at different areas. According to studies on phenomena, features, mechanism, and influencing factors on CO2 corrosion, this study put forward that a few effective countermeasures should be taken for anti-corrosion technology including injecting corrosion inhibitor, adopting stainless steel or bimetallic materials for the combination casing strings or well tubings.

为此，对我国几个不同类型含CO2油气田的现场的CO2腐蚀资料进行了调查、研究，分析了CO2腐蚀给天然气生产带来的严重危害性，总结出在不同类型油气田中CO2腐蚀的一般规律和不同区域CO2腐蚀的特殊性；在对CO2腐蚀的现象、特点、类型、机理以及腐蚀的影响因素研究的基础上，提出了含CO2气井防腐工艺技术应着重解决好含CO2气井的完井、生产管柱采用不锈钢或双金属复合油管、加注缓蚀剂等几种有效的防腐蚀措施。

In acid and salt solution,TiN shows an excell ent corrosion resistance after 100 h immersing test.TiN coating acted as a physi cal barrier between the stainless steel and corrosion media.The corrosion proces s initiated from the pinhole and the corrosion process under the coating is very similar to the pit corrosion form.

结果表明：TiN涂层可以提高材料在中性和酸性溶液中的耐蚀性能，TiN涂层的保护机制为物理屏障作用；镀层的微观结构缺陷是涂层失效的主要原因，涂层下金属的腐蚀行为与孔蚀类似。

The invention discloses a rotary bending corrosion fatigue test device. The device includes a rotary bending fatigue test device and a corrosion liquor supplying system; wherein, the rotary bending fatigue test device is used for mounting a test piece and applies bending load on the test piece during the process of driving the test piece to rotate and realizes the test on the fatigue data of the test piece. The corrosion liquor supplying system includes a liquor storage tank, a transfusion pump, a flow adjusting valve and a connecting pipeline. The corrosion liquor supplying system feeds the corrosion liquor to the test piece during testing in real time from an output opening.

本发明公开了一种旋转弯曲腐蚀疲劳实验装置，该装置包括旋转弯曲疲劳实验装置及腐蚀液供给系统，其中，旋转弯曲疲劳实验装置用于试件的装卡，并在驱动试件旋转过程中对其施加弯曲载荷，以及实现对试件疲劳数据的测试；腐蚀液供给系统包括储液罐、输液泵、流量调节阀及连接管道，腐蚀液供给系统通过其输出口实时向测试中的试件输送腐蚀液。

The inner wall of the dietetic utensil and the isolating film are adaptive to each other.With a hook-shaped rim, the external rim of the isolating film is hooked on to the rim of the dietetic utensil, avoiding sliding off.

内壁的饮食器皿和隔离膜，是适应每个other.with钩形圈，外围周边的隔离膜，是迷上了向周边的饮食用具，避免滑动起飞。

The double cylinder rim lock can be divided into two types, jimmy proof rim lock and the non-jimmy proof rim lock.

但遗憾的是在紧急操作时（如发生火警时逃生就比较困难）没有单锁头方便，容易忙中出错导致延误时机；在双扣锁中，由于锁舌运动时呈垂直方向，所以锁舌一般为圆柱形，锁舌伸出或缩进一般使用钥匙或旋钮进行，故锁舌结构中形成了有自碰及非自碰功能。

As for 0.1 degree per hour IFOGs, the requirement of RIM value is below 8lppm in another typical condition. The precise measurement method of the RIM value with a phase lock amplifier was proposed and applied on a homemade phase modulator. Its RIM value meets the requirements of middle-resolution IFOG

提出利用锁相放大器精确测量相位调制器RIM的方法，并对国产器件进行测量，结果表明，器件RIM指标可在中低精度IFOG中应用。

The results show that DFR-corrosion-influence-factors are decreasing as the increasing of ground-corrosion-time and the aggravating of environments causticity. The influence of corrosion fatigue is much serious than that of ground-corrosion. The example of structure fatigue analysis with DFR method under corrosive environment shows the detail steps and data requirements.

通过试验测定了各种典型情况的DFR腐蚀影响系数，试验结果说明DFR腐蚀影响系数随着地面停放腐蚀时间的增加和环境腐蚀性的增强而降低，腐蚀疲劳的影响较停放腐蚀的影响更严重。

Combining with the National Natural Science Foundation ofChina(No.50478032), following researches were done in this thesis: 1 The variation regularity of the ultimate anti-bending capacity of therectangular-sectioned beam with different corrosion has been obtained through thequalitative analysis of 48 beams (32 corroded beams and 12 comparing beams) withaccelerated corrosion; 2 The conclusion has been obtained that the strain of corroded steel bar andconcrete no longer fit in with the assumption of plane section through the analysis ofthe strain data, the strain relation of steel bar and concrete in the mid-span section ofvariously corroded beams at ultimate has been obtained. Through the building of newgeometric relation, the expression of the height of compressive area in the corrodedbeam with rectangular section has been deduced, and the formula with corrosion rateas the main variable for the anti-bending capacity of the corroded concrete beam hasbeen suggested and verified by experiment.; 3 The influence of steel bar corrosion and the concrete regression to the flexureductility coefficient of the corroded structure component has been analyzed. Based onthe relation of steel bar and concrete at yield and ultimate, the expression for theflexure at yield and ultimate of corroded reinforced concrete beam, and the model forthe calculation of the flexure ductility has been built.

本文结合国家自然科学基金项目(50478032)"既有钢筋混凝土桥梁时变可靠度研究"，主要进行了以下研究工作： 1通过对48根快速锈蚀钢筋混凝土矩形截面梁(32根锈蚀梁和12根对比试验梁)数据的定性分析，得到了不同锈蚀率下，锈蚀钢筋混凝土矩形截面梁极限抗弯承载力的变化规律； 2通过对应变数据的分析，论证了锈蚀构件钢筋和混凝土的应变不再符合平截面假定的结论，并通过回归分析得出了不同锈蚀率的螺纹钢筋梁和光圆钢筋梁在极限弯矩作用下，跨中截面处钢筋应变和钢筋处混凝土应变的关系，通过构造新的几何关系，得出了锈蚀钢筋混凝土矩形截面梁计算受压区高度的表达式，既而得出了以锈蚀率为主要变量的锈蚀钢筋混凝土矩形截面梁的正截面抗弯计算建议公式，并通过试验数据加以验证； 3分析了钢筋锈蚀和混凝土劣化对锈蚀构件曲率延性系数的影响，结合钢筋屈服和极限弯矩两种状态下钢筋和混凝土的应变关系，分别得到了锈蚀钢筋混凝土矩形截面梁屈服曲率和极限曲率的计算表达式；既而推导出曲率延性系数的计算模型。

That is less copper anion in the environment. PASP has the effect of corrosion inhibition in hydrochloric acid solution. In addition the potation of cathode summit current turned negative as increasing PASP concentration, and the potential of anode summit current turned positive, it can constrain the corrosion of copper. That is to say PASP is a mixed corrosion inhibitor and can constrain the corrosion of copper surface.

循环伏安测试结果表明： PASP的加入同时抑制了铜表面的阴阳极反应，使阴极峰和阳极峰电流都减弱，说明此环境中的铜离子的含量较少，PASP对铜在盐酸中有缓蚀作用；另外阴极峰电位随着PASP添加浓度的增大而依次变负，而阳极峰电位依次变正，抑制了铜的腐蚀，说明PASP是混合型缓蚀剂，有效地阻止了铜表面的腐蚀。

Given the language of section 102(2), the Supreme Court's rejection of substantive review under NEPA seems unjustifiable in principle

按照第102条的规定，最高法院否决《国家环境政策法》所规定的实质性复审在原则上似乎是不正当的。

ObjectiveTo explore the effect of variable hip abduction orthosis on children spastic cerebral palsy.

目的探讨髋关节矫形器在儿童痉挛型脑性瘫痪康复中的作用。