查询词典 corrosion resisting

This paper analyzes the investigation results about the internal oxidative corrosion in over 100 fire-tube package boilers and water tube boilers with drums,as well as the causes of the corrosion.Some practical corrosion preventive measures in operation management and deaeration are recommended.

本文对一百多台烟火管快装炉和带锅筒水管锅炉内部氧腐蚀情况的调查结果进行了分析，分析了产生氧腐蚀的原因，从运行管理和采取除氧措施等方面提出了实用的防氧腐蚀的建议。

Corrosion film is the determinative factor for corrosion rate and corrosion pattern.

而腐蚀产物膜是腐蚀速率和腐蚀形态的决定因素。

SEM is used to observe the morphology of the samples after the corrosion test, and the effects of ZrO2 concentration on the corrosion resistance of the nano composite electroforming deposits are analyzed, and its corrosion resistance mechanism is discussed.

用SEM观察了各种样品腐蚀后的表面形貌，分析了纳米ZrO2微粒复合量对复合电铸层耐蚀性的影响，同时对纳米复合电铸层的腐蚀机理进行了初步探讨。

According to corrosion damage distribution law, cumulative distribution law of corrosion damage is conducted by four membership functions of fuzzy equivalent corrosion damage.

结合腐蚀损伤的分布规律，选用了4种形式的模糊等效腐蚀损伤的隶属函数来表示腐蚀损伤的累积分布规律。

The three fail form of scoring,fillister and corrosion for 127 mm(5) S135 drill rod joint ,corrosion rate and corrosion production have been researched by means of analysis of chemical composition and microstructure,testing of mechanical property.

通过化学成分分析、力学性能测试、组织结构分析和高温高压模拟试验，对127 mm(5)S135钻杆接头内壁出现划痕、凹槽和腐蚀三种失效形式，钻杆的腐蚀速率和腐蚀产物进行分析研究。

It is discussed each hydronium effect to corrosion action of extraction liquid under wells and the results show that the shape and its structure of surface corrosion produced films of N80 steel to metal has serious effect of further corrosion.

美国的Mississipi和Uttle Greek油田在进行COZ 驱油试验时发现，在未采取CO：腐蚀防护措施时，生产井的管壁不到五个月便腐蚀穿孔，相当于腐蚀速率为12.sm而a。

Wear and corrosion involve mechanical and electrochemical mechanisms, and the combined action of these mechanisms often result in significant mutual reinforcement. To measure the effect on wear-corrosion resistance of the chemical and abrasion wear separately at the same time, wear-corrosion synergism rate is selected to indicate the nature and degree of the chemical and abrasion wear.

腐蚀磨损是同时涉及力学因素和电化学因素的复杂的材料的流失过程，通常条件下，腐蚀磨损不是纯磨损和纯腐蚀的简单叠加，还有两者间的协同作用，为定量描述腐蚀与磨损的促进程度、进一步完善腐蚀磨损机理，本文利用腐蚀磨损协同作用率值的大小来分析腐蚀和磨损的交互作用程度，结果表明：本文制备的镀层，在5％H_2SO_4溶液中腐蚀磨损时，机械磨损是造成镀层表面材料流失的主要原因，腐蚀和磨损的协同作用为次要因素。

It has both good wear resistance, and good corrosion resistance and strong resistance to pitting corrosion, intergranular corrosion resistance.

它既有良好的耐磨性，又有良好的耐腐蚀性和较强的抗点蚀、抗晶间腐蚀能力。

Using metallographic analysis, original structure and surface deficiency were obtained, the influence of the structure on corrosion speed was settled, the surface macrography patterns of welded joint in different temperature and concentration were got. Microscopic patterns after corrosion in different condition were gained by SEM, though which the influence of temperature, concentration and structure on corrosion was easily observed.

采用金相分析法，不仅获得了腐蚀前焊接接头的原始金相组织以及表面缺陷，确定了组织及缺陷对腐蚀速率的影响，而且得到了焊接接头在不同温度、浓度条件下腐蚀后的宏观形貌，采用场发射扫描电子显微镜得到了焊接接头在不同条件下腐蚀后的微观形貌，从而直观地得到了温度、浓度以及组织对焊接接头腐蚀速率的影响。

When Ts is 850 ℃,grains are fined and the size of βphase and the distance betweenβphase pasticles are small.The corrosion barrier effect ofβ phase onαphase is enhanced and the iron content does not increase much at this temperature.So the corrosion resistance is improved.The corrosion resistance of AZ70 alloy falls off when Ts is 890 ℃,which attributes to the presence of microporosity,hot cracking and increase of iron content.

过热温度为810 ℃时，热速处理对合金耐腐蚀性能的改善作用并不大；过热温度为850 ℃时，热速处理显著细化了合金晶粒，β相的尺寸和间距变小，β相对α相腐蚀的阻碍作用增加，而且合金中的铁含量并没有提高，从而改善了合金在试验条件下的耐腐蚀性能；过热温度为890 ℃时，组织中存在热裂纹和显微疏松缺陷，合金含铁量显著增高，合金的耐腐蚀性能下降。

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。