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With the concentration of 0.1mol·L~(-1), sodium benzoate andβ-sodium glycerophosphate show obvious inhibiting effect, respectively. And D-sodium gluconate with the concentration ranged from 0.001 to 0.1mol·L~(-1) has excellent inhibiting effect.

结果表明,缓蚀剂的浓度为0.1mol·L~(-1)时,苯甲酸钠和β—甘油磷酸钠有较好缓蚀效果,D—葡萄糖酸钠浓度为0.001mol·L~(-1)至0.1mol·L~(-1)时均有良好缓蚀效果。

By analyzing and researching the corrosion resistant mechanism of adsorption typal acidification corrosion inhibitor, taking single equational experimental method, making use of mannich reaction and using the hydrochloric acid as catalyst and the ethyl alcohol absolute as solvent, the new acidification corrosion inhibitor HZ-1 is synthesed by formaldehyde、hypnone、aromatic amines in the present research of this thesis.

本文通过对吸附型酸液缓蚀剂缓蚀机理的分析和研究,利用单因素实验方法,采用曼尼希反应,以盐酸为催化剂,无水乙醇为溶剂,用甲醛、苯乙酮、芳香多胺合成了新型酸化缓蚀剂HZ-1。

Effects of the mass ratio of organic phosphonic acid to zinc biphosphate, compound system amount, corrosion time and temperature, and pH value on the anticorrosive efficiency were investigated.

以四乙烯五胺、甲醛和亚磷酸为原料合成了有机膦酸类缓蚀剂,与磷酸二氢锌复配,考察了有机膦酸类缓蚀剂与磷酸二氢锌质量比、复配体系加量、腐蚀时间、腐蚀温度及体系pH值对复配体系缓蚀效果的影响。

An experiment on forming of cross-hatch on the ablation material surface has been done under the condition of Mach 5 and tur-bulent boundary layer regime.Artifitial disturbances created by randomly setting several pins along a line perpendiculer to the flow direction have shown stochastical character of local cross-hatch and independence of global orderly structure,therefore the pattern appeared fractal behavior.

在外流M=5湍流边界层状态下,模型为170×300mm ̄2蜂蜡平板上进行了烧蚀花纹图案生成的实验研究,通过实验证明了人工安置干扰源并不影响烧蚀材料表面花纹的有序结构,对大面积烧蚀花纹的分析表明,局部花纹结构具有随机性质,因此烧蚀花纹具有分形结构的特性,用分形方法可以大致模拟花纹生成图案。

Results indicate that the two types of tetrazole derivative inhibitors have good corrosion inhibition ability for copper in NaHCO3 solution, and they are both anode-type inhibitors.

合成了胍基四唑和1-苯基-5-巯基-1, 2, 3, 4-四氮唑2种缓蚀剂,用失重法和电化学法研究了2种缓蚀剂在5% NaHCO3碱性介质中对铜的缓蚀性能和吸附行为。

Etchants are high consumption and high pollution of the printed circuit board industry; therefore this research uses the etchant for the acid copper chloride amount the high copper content in the printed circuit board industry, using the neutralization for acids and bases to prepare of the copper salt by the acid wasted etching liquid.

中文摘要在印刷电路板业中蚀刻液属於高用量及高污染性质的液体;因此本研究主要使用印刷电路板业中含铜量较高之酸性氯化铜蚀刻液,使用酸碱中和法从酸性蚀刻废液制备出铜盐,以达到废弃物资源化再利用之永续经营。

According to experiment study of anti corrosive-wear capability about tube and rod friction pair which are made of ordinary materials and surface treatments,some straight figures were drawn about selecting friction pair's corrosive-wear ratio.

对抽油井常用管杆材料以及表面处理后的管杆材料摩擦副耐磨蚀性能进行了试验研究,结果表明:J55与N80普通油管与QT60接箍配合时,接箍磨蚀最小;而无论与哪种接箍对磨,涂层油管最耐磨,并且与非调质钢(FG20)接箍磨蚀时,接箍最耐磨。

The compound molybdates were tested as corrosion inhibitor and mechanism of corrosion of carbon steel in sea water was discussed by using weight loss, electrochemical polarization and XPS technique.

采用失重法、电极化法和X-射线光电子能谱XPS技术对钼酸盐复合缓蚀剂的缓蚀性及缓蚀机理进行了研究。

The experimental results show that the erosion behavior is similar to that of brittle ceramic materials while the maximum erosion is found to occur at a jet angle of 90 degrees. The successive spalling of splats ...

结果表明:Cr3C2 NiCr涂层的冲蚀磨损呈现脆性材料的冲蚀磨损特征,在 90°冲蚀率最大;磨料冲击引起的裂纹沿涂层内粒子界面萌生、扩展并最终导致粒子剥落,是涂层主要的冲蚀磨损机制。

At first,the theory and the happening conditions of cavitation damage are presented,at the same time,the reasons of cavitation damage and the position where the cavitation damage usually takes place are analyzed in tunnel spillways.

首先介绍了空蚀破坏的原理以及发生空蚀破坏的条件,并分析了龙抬头式泄洪洞发生空蚀破坏的原因和易发生空蚀破坏的部位。

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