查询词典 corrosion

The corrosion rates of mild steel in soil was studied by means of polarization curve measurements on steel specimens with various extent of corrosion in laboratory.

1前言土壤中钢铁的自然腐蚀是钢铁在外界侵蚀性介质的作用下发生电化学和化学过程而受到的破坏。

It was found that introducing 15 g/L additive containing 1.5 g saccharin helped to well retard electropolishing-induced corrosion of the electropolished improve the quality of the electropolished moldboard surfaces. At the same time, it was feasible to realize satisfactory precision electropolished of the laser moldboard made of stainless steel at a current density of 20~25 A/dm^2, duration of 1 min, and temperature of 60~65 ℃. The resulting polished moldboard had smooth walls and bright surface, while the corrosion was less than 0.005 mm.

结果表明，添加剂含量在15 g/L时能有效抑制抛光的腐蚀量，提高抛光质量；在精抛光的参数电流密度为20~25 A/dm^2，温度60~65℃，时间1 min条件下，钢片经去毛刺处理和精抛光处理能达到孔壁光滑、腐饮量小于0.005 mm的要求。

The results show that BDT can be assembled on the surface of copper electrode to form monomolecular self-assembled membrane,and the membrane can efficiently inhibit the copper base corrosion in the 3% NaCl corrosion medium and acidic solution.

实验表明：BDT能够有效地组装到铜的表面形成单分子自组装膜，BDT自组装膜能有效地抑制铜基底在3%NaCl腐蚀介质以及酸性NaCl溶液中的腐蚀行为；缓蚀效率随组装时间的延长逐渐升高并趋于稳定，在pH值较低的溶液中仍具有较好的缓蚀效果；当BDT浓度为1.0×102 mol/L、组装时间为40 h时，铜电极的腐蚀电流最小，缓蚀效率最好。

High temperature gas scour,alkalescent steam attack,and thermal shock will cause the flush corrosion,silica brick corrosion,mousehole,crack and flake of crown.

生产过程中的侵蚀损毁和烤窑维修过程中的人为损害是影响玻璃池窑碹顶安全的主要因素。

After study of the corrosion state taken place in this unit and the general corrosion principle, quantity of neutralizer injection was increas...

在分析腐蚀发生原因的基础上，对具体局部腐蚀严重的地方采取具体的措施。

The performance and mechanism of corrosion inhibitions of POCA were studied bymethods such as weight-loss, electrochemistry, EDS, XPS and quantum chemistry. It isfound that POCA is cathodic corrosion inhibitor, having synergistic effect with HEDP andZn~(2+). The P and O atoms of phosphono have important electron density contribution toHOMO orbital and the electron gross orbital population is bigger than 1, so it is easy toform absorbing location between phosphono and metal resulting in good corrosioninhibition on mild steel.

通过利用失重法、电化学方法、扫描电镜、X光电子能谱、X-射线能谱和量子化学方法研究膦酰基羧酸的缓蚀性能及其机理，发现POCA是一种阴极型缓蚀剂，与HEDP、Zn~(2+)具有优良的协同增效作用；POCA分子中的膦酰基基团的P原子和O原子对HOMO轨道电荷密度贡献较大，且其轨道电子布居数均大于1，因此比较容易通过膦基与金属形成吸附位而对碳钢具有良好的缓蚀作用；对铜合金具有一定的腐蚀作用，但腐蚀作用比HEDP等有机膦药剂要小得多，同时与BTA具有优良的相容性，添加1mg／L的BTA则可以有效地防止铜合金的腐蚀。

The results indicate that the coated Pb not only can increase the overpotential of hydrogen evolution, but also can shift the corrosion potential of zinc electrode to the more positive position, so as to decrease the corrosion rate.

结果表明：在泡沫镍集流体上镀铅不仅可以提高电极的析氢过电位，还能使其腐蚀电位正移，减小腐蚀程度；同时还能在一定程度上解决锌电极的钝化问题。

The results show that FGH95 alloy has good hot corrosion resistance characteristics at 650 ℃, and its corrosion kinetic curve obeys a parabolic rule.

研究结果表明： FGH95合金在650℃具有较好的抗热腐蚀性；在700和750℃下， FGH95抗热腐蚀能力下降，腐蚀严重。

This particular line incorporates world-class complete vehicle cathode electro-coating technology. The integrated body and chassis frame is subject to degreasing and phosphatization pretreatment and then to cathode electro coating, which significantly improves paint membrane adhesion and corrosion resistance of complete vehicles, brings the products up to quality standards and make complete vehicles resistant to corrosion for more than 10 years.

该生产线采用国际先进的整车阴极电泳技术，车身和底盘车架一体整车经过脱脂、磷化前处理，再进行阴极电泳处理，大大提高整车漆膜附着力及整车耐腐蚀性能，满足产品质量要求，整车的防腐可达十年以上。

It is found that the corrosion inhibition rates come to 91.55% when the proportion of imidazoline and diethyl phosphite is 2:1, which meets the requirements of corrosion inhibition.

经过对咪唑啉和亚磷酸二乙酯这两种环烷酸缓蚀剂在不同配比下复配的评价，得出：在咪唑啉和亚磷酸二乙酯2：1配比时，缓蚀速率为91.55%，达到缓蚀的要求。

No complex distressful things on your mind but only our love and care for each other.

无复杂痛苦的事情，对你的心，但只有我们的爱和照顾对方。

At first light, on his own initiative, Vick located the enemy emplacements andfired on them, using 15 rounds.

破晓时分，维克主动地去查找敌军的炮位并向它们开火，打了15发弹药。