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By means of electrochemical measurements,XRD and surface morphology analysis,the influence of saccharin brightener on electroless plating nickel coating was studied.

通过电化学和XRD以及表面形貌分析等方法,研究了光亮剂糖精对化学镀镍层耐腐蚀性能的影响及其机理,结果表明,糖精可以提高化学镀镍层在盐酸、硫酸、氯化钠中的耐蚀性能,但在氢氧化钠中耐腐蚀性能下降

The characteristics of sulfuric acid dew point environment are briefly introduced, and the mechanism of effect...

介绍了硫酸露点腐蚀环境的特点并讨论了合金元素对该低合金钢耐硫酸露点腐蚀的作用机制和国内外现有主要低合金耐硫酸露点钢的化学成分、力学性能和耐蚀性能。

This invention discloses a preparation method for anti-corrosion rare earth magnet material characterizing that it takes the optimized grain-boundary phase design as the starting point on the basis of a dual alloy method to select Nd base alloy with high crystal forming ability as the assist alloy and reduces the temperature of the press mold blank in a quartz container to room temperature from over grain-boundary phase melting point with the water extraction way to get enough cooling rate and guarantee the non-grain-boundary phase, compared with the material of the same composition prepared by ordinary method, the weightlessness of this invented material reduces over 30% after testing the weightlessness of the material by laying it for 96 hours under 121deg.C, 2 atmosphere and 100% humid environment to show the advanced performance of anti-corrosion.

本发明公开了一种耐腐蚀稀土永磁材料的制备方法,其特征是它在双合金法制备工艺的基础上,以优化晶界相设计为出发点,选取具有较高非晶形成能力的Nd基合金为辅合金,并在烧结回火时将置于耐高温石英容器中的压型坯件,从晶界相熔点以上以水淬冷却的方式降温至室温,以达到足够的冷却速率,确保得到非晶晶界相,根据本发明制得的耐腐蚀稀土永磁材料,通过测量在121℃、2个大气压以及100%湿度环境下放置96小时后材料的失重情况,结果显示本发明得到的材料与常规方法制备的相同成分的稀土永磁材料相比失重减少了30%以上,充分证明其具备了更优越的耐腐蚀性能。可广泛应用于电子、汽车、计算机、电力、机械、能源、环保、国防、医疗器械等领域。

We use in 316 steel pipes chromium content should after 16%-18% the steel joins elements and so on chromium, can change the steel the performance, like the example steel's molecular structure is evener, produces compact oxide compound protective film in the steel superficial change and so on, thus sharpens the stainless steel anti-corrosive ability greatly.

我们所使用的316钢管中铬的含量应该在16%-18%钢中加入铬等元素后,就能改变钢的性能,如例钢的分子结构更均匀,在钢的表面更易生成一层致密的氧化物保护膜等,从而大大提高耐腐蚀的能力。

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。

Meanwhile, the coated surface was hydrophobic with a contact angle of 107.2°since the introduction of methyl groups and methylene groups. Static immersing corrosion test, potentiodynamically polarization curve and electrochemical impedance spectroscopy were conducted to evaluate the film corrosion performances. The results of potentiodynamically polarization curve and EIS in 55wt% LiBr solutions at room temperature in atmospherical pressure indicated that the corrosion current density of BMBSE film coated surface was 4 orders of magnitude smaller than that of bare SUS304 steel, and the impedance was increased by a factor of 10000. Static immersing corrosion test presented that the BMBSE film can significantly increase the corrosion resistance in 55wt%LiBr solution at 180°C compared with stainless steels.

同时由于有机组分甲基和亚甲基的引入,结构均匀致密,并具有一定的疏水性;电化学测试结果表明BMBSE膜的极化阻抗比不锈钢大4个数量级,自腐蚀电流密度也下降低了4个数量级左右,具有良好的耐腐蚀性能;成膜的影响因素优化结果表明BMBSE、EtOH、D.I.water摩尔比为1∶4∶3,热处理温度为200℃时,更有利于制备结构均匀、致密、耐腐蚀性能好的薄膜;静态浸泡腐蚀实验结果说明,在180℃、55%的高温溴化锂溶液中BMBSE膜能起到良好的腐蚀防护作用。

The natural Slates such as Slideproof Slate, Avianize Slate, Mosaic and Cuture Stone, the main products of our company mined from quarries formed through millions of years, are hard in quality and bright in color. Because of their unique layer structures, they have very strong flexural strength. Their wear-resistant and corrosion-resistant properties make them ideal building materials used for both interior and exterior.

主要产品是火烧板、亚光板、马赛克、文化石等天然板岩,开采于经过数亿万年形成的石材矿床,品质坚硬,色泽鲜明,其特殊的层状结果决定了它的抗折强度很高,尤其良好的耐磨、耐腐蚀的天然石材特征,使其成为一种地面、屋面、室内外墙面非常理想的建筑材料。

Article 15 The facilities, tools, pipes and containers used for the production of food additives shall satisfy the corresponding hygienic requirements and be made of innocuous, unattacked, watertight and non-deforming materials without any abnormal smell.

第十五条食品添加剂的生产用设备、工具、管道、容器必须专用并符合相应的卫生要求,采用无毒的、无异味的、耐腐蚀的、不渗水的、不变形的材料制作。

UCB01S is of oil resistant,acid resistant,alkaliresistant and seawater resistant.more over,there is no lead in the PTFE surface layer and so is particularly fit for bushings in food stuff machines,alkali flow meters,pumps motion elements in pharmaceutical machines,printing machines chemical engineering machines and other ocean industry.this is a triple layers composites bush,the base material being a bronze plate and a film of heat resistant power filled PTFE being calendered onto the sintered spherical bronze interlayer.

UCB01S不锈钢耐腐蚀轴承,是以不锈钢材料为基体,中间烧结耐腐蚀合金粉末,表面轧制以聚四氟乙烯为主的低摩擦材料,经过卷制成型的一种十分有效的耐腐蚀材料。它具有耐油、耐酸、耐碱、耐海水和耐磨损的特点,表面的PTEE材料不含铅成份。在食品饮料机械、印染机械、化工机械、海洋工业耐腐蚀滑动部位最适合使用。

Electric stainless steel diaphragm,uhb-zk wearable pump sand decay,fzb fluoroplastics self-priming pump,fsb fluorine plastic alloy centrifugal pump,gc boiler feed pump,ihf衬氟centrifugal pump,fb,afb corrosion-resistant chemical pumps,ih chemical centrifugal pump,screw pump coal slurry,ihg chemical pipeline pump,is clean water pump,electric diaphragm pumps vertical,衬氟pneumatic diaphragm pumps,stainless steel pneumatic diaphragm pumps,pneumatic diaphragm pumps of cast iron,aluminum alloy pneumatic diaphragm pumps,pneumatic diaphragm pump engineering,gw pump sewage pipes,lw vertical sewage pump,zwl direct-coupled self-priming sewage pump,isg vertical pipeline pump,isw horizontal pipeline centrifugal pump,cqb magnetic heavy-duty stainless steel pumps,cqb - g stainless steel high temperature magnetic pump,g-type screw pump | single screw pump | pump concentration,jmz,fmz wine self-priming pump self-priming chemical pump,zx water self-priming pump,iswh,iswhd horizontal stainless steel pipeline pump chemical,qj deep well pump,kcb,2cy gear pumps,pbg shielding pipeline pump,cdlf stamping stainless steel multi-stage centrifugal pump,lg,lg-b high-level multi-stage centrifugal water supply,s,sh in the open double suction centrifugal pump,dl,dlr vertical multi-stage centrifugal pump,iswr,iswrd horizontal pump hot water pipes,gdl pipeline multi-stage pumps,electric diaphragm pumps衬氟,tear-style diving sewage pump,sewage pump automatically mix,zw self-priming sewage pump without blockage,wq-type sewage submersible pump-free plug,fpz,pvz corrosion-resistant self-priming pump.

模块式安装,便于增添设备:热泵热水器产品采用多台常压燃煤锅炉并联的安装模式,当用户用水量锅炉时,可随时增添设备。不锈钢燃气隔膜泵,uhb-zk锅炉boiler耐腐沙浆泵,采暖电锅炉氟塑料自吸泵,fsb氟塑料合金常州市锅炉厂,燃气锅炉给水泵,ihf衬氟离心泵,fb、afb耐腐蚀化工泵,ih化工离心泵,水煤浆螺杆泵,ihg采暖电锅炉管道泵,is清水离心泵,立式电动隔膜泵,衬氟气动隔膜泵,不锈钢气动隔膜泵,铸铁气动隔膜泵,铝合金气动隔膜泵,工程塑料常压燃煤锅炉隔膜泵,gw管道排污泵,lw立式排污泵,哈尔滨锅炉供暖公司直联式自吸排污泵,锅炉蒸汽参数立式管道泵,isw卧式管道离心泵,cqb重型不锈钢磁力泵,cqb-g高温不锈钢磁力泵,g型螺杆泵|单螺杆泵|浓浆泵,jmz、fmz自吸酒泵自吸化工泵,zx清水自吸泵,iswh、iswhd卧式不锈钢化工管道泵,qj深井泵,kcb、2cy齿轮油泵,pbg屏蔽管道泵,cdlf不锈钢多级冲压离心泵,lg、lg-b高层给水多级离心泵,s、sh中开式双吸离心泵,dl、dlr立式多级离心泵,iswr、iswrd卧式热水管道泵,gdl多级管道泵,衬氟电动隔膜泵,撕裂式潜水排污泵,自动搅匀排污泵,zw自吸无堵塞排污泵,wq型潜水式无堵塞排污泵,fpz、pvz耐腐蚀自吸泵。

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In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国,慢性酒精中毒,肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题,你可以随时联系我。

Very pretty, but the airport looks more fascinating The other party wisecracked.

很漂亮,不过停机坪更迷人。那人俏皮地答道。