Their corrosion inhibition action of stainless steel in hydrofluoric acid is studied by adsorption theory and electrochemical polarization-curve method,the mechanism of corrosion inhibition action is analyzed.the result shows that the single molecule layer of these compounds is adsorbed on the surface of the stainless steel and followed Langmuir isothermal equation. the adsorption procedure of propiolic alcohol is endothermic reaction, the adsorption ability and corrosion inhibition efficiency increased when temperature rised. The adsorption procedure of other three compounds are all exothermic reaction , the adsorption ability and corrosion inhibition efficiency decreased when temperature increased.

實驗結(jié)果表明：這幾種物質(zhì)在不銹鋼表面產(chǎn)生單分子層吸附欧美一区黄片免费看，并且滿足Langmuir吸附規(guī)律色色手机视频，丙炔醇的吸附過程為吸熱反應(yīng)，隨著溫度的升高黄色大片最新网址品尚j8，吸附能力增強大陆三级片99免费视频，緩蝕率升高能看av的网址；其它三種化合物的吸附過程均為放熱反應(yīng)，溫度升高qvod激情图片，吸附能力下降亚洲av清无码精品自拍，緩蝕率降低。

It i s found that the aged sample suffered more severe corrosion than the unaged samp le.Corrosion type of the aged 310SS is intergrainular,whereas corrosion type of unaged 310SS is uniform.The formation of σ phase due to aging treatment at 700 ℃ for 1000h,reduced Cr content on boundaries in 310SS,which results in the de crease of corrosion resistance of 310SS.

結(jié)果表明：經(jīng)時效處理的310不銹鋼比未時效處理者腐蝕嚴(yán)重黄色做吊逼，前者以晶間腐蝕為主国产人妖，后者以均勻腐蝕為主。310不銹鋼于700℃欧美性爱A√视频在线，100 00 h時效后在晶界大量析出σ相中文在线播放，使晶界附近貧Cr，降低了其抗硫腐蝕性能五级全黄的视频在线观看。

Pit corrosion is a main kind of localized corrosion. The process of forming pit corrosion includes three stages-formation of pit source, development of pit cave and forming occluded corrosion cell. Molybdate series inhibitors can be inhibitive, for it can control three stages of pit development. First, there is apparent synergistic effect between molybdate and phosphate, which can suppress formation of pit source. Second, there is apparent passivation of molybdate inhibitor according to electrochemistry analysis, which let oxidation film in unoccluded cave repassivate.

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Corrosion inhibitor JC-6 selected out of 9 commercial chemicals added at dosage 1.5% decreased the corrosion rate of 13Cr-L-80 coupled with N-80 at 60℃ to 0.012 and 0.165 mm/a respectively; JC-6 and PA in various combinations could decrease the corrosion rate further and in mass ratio 9:1 (notated as JCP-6) at dosage of 1.5% could decrease the corrosion rate of the two metals at 70℃ to 0.013 and 0.069 mm/a respectively.

從9種緩蝕劑中篩選出JC-6日韩另类综合福利网站在线播放视频，在加量1.5%時，13Cr-L-80和N-80偶接性欧美精品一区二区三区在线播放、60℃時腐蝕速度分別降至0.012和0.165mm/a日本PP视频；質(zhì)量比為9：1的JC-6與PA復(fù)配物（代號JCP-6）使偶接鋼材腐蝕速度進(jìn)一步降低，在加量1.5%時新淫色综合网站，70℃時的腐蝕速度分別降至0.013和0.069mm/a99久久这里只有精品。

On the basis of atmospheric corrosion analysis and on the premise of unaltered originappearance of metal antiquity, a novel systematic technology of rust stabilized conversion and corrosioninhibition for archeological iron was developed in this thesis. Model occulted corrosion cell was used to studythe formation of bronze powder rust, its characteristics of pit corrosion and effect factors. The filmingtreatment of azoles composite corrosion inhibitors was used to prevent silver tarnishing, and its anti-tarnishingmechanism was proposed by measurement of electrochemical techniques and Surface-enhanced Ramanscattering.

在不改變文物原狀的前提下，本文基于對金屬質(zhì)文物大氣腐蝕過程的分析，發(fā)展了一種新的鐵器文物表面銹層穩(wěn)定轉(zhuǎn)化與緩蝕保護(hù)的系統(tǒng)處理方法欧美极品专区高清在线观看，用&模擬閉塞電池&的方法研究青銅器文物&粉狀銹&的形成最新国产主播精品福利直播、點蝕特征和影響因素，采用唑系復(fù)合緩蝕劑成膜處理技術(shù)防止銀器文物變色欧美一级多人婬片人妻欧美大片，利用電化學(xué)方法欧美日韩va视频、SERS等方法研究并提出了唑系復(fù)合緩蝕劑防銀變色的作用機理。

Provinces and cities for many years the company has been appointed as "heavy contract, keep promise" enterprise,"AAA" credit enterprise and the "civilization of advanced unit" on behalf of projects in recent years has Baoqing Heilongjiang Power Plant cooling towers lining anti-corrosion plugging, Jiangsu Suqian power plant 100 m chimney slipform construction, Zhejiang Jiande chimney power plant 120 meters beacon preservative, Zhejiang Xiaoshan Power Company Limited, the main steel frame a new anti-corrosion, Shandong Rip Biochemical Co., Ltd.-owned power plant chimney 60 meters of new, Inner Mongolia Power Company Limited chimney brush color Central, Shaanxi society Cement Co., Ltd., limestone are color plates of the Treasury and the external walls of the installation of anti-corrosion and so on, as enterprises and institutions across the country to solve many difficult engineering construction of the anti-corrosion.

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Yancheng new large high-altitude anti-corrosion Co., Ltd. is a maintenance only high-altitude flying Yancheng operations and anti-corrosion construction of a dual-qualified enterprises, is a scientific research, high-altitude construction, installation, maintenance, anti-corrosion, waterproof plugging, fire blocking , concrete drilling, chemical anchoring, high-level cleaning as one of the joint-stock enterprise, has to undertake a variety of high-altitude maintenance, corrosion, plugging project 1000, which has tall and difficult works and national key projects, able to complete the outstanding mission has played a due role in professional firms.

鹽城市新大高空維修防腐有限公司是鹽城市唯一獲得高空懸掛作業(yè)和防腐蝕施工雙一級資質(zhì)的企業(yè)干操美女，是一個集科研日本操逼视频不卡、高空建筑、安裝无码日韩免费专区迅雷下载、維修毛片一级农村毛片、防腐、防水堵漏黄色网站在哪里、防火封堵98偷窥自拍亚洲色图、砼鉆孔、化學(xué)錨固欧美国产亚洲日本韩国VA、高層清洗為一體的股份制法人企業(yè)济南宋刘村足疗店，先后承接了各類高空檢修、防腐怡红院欧美优物性爱、堵漏工程千項色天堂人妻有码精品，其中有高大難工程和國家重點工程，均能出色地完成各項任務(wù)18岁禁止av，發(fā)揮了專業(yè)公司應(yīng)有的作用欧美视频黄色视频。

Inhibitor is a chemical species or admixture, which exists in the medium and can prevent from corrosion or retard corrosion. It is an effect method to use inhibitor to prevent metals and its alloys corrosion in environmental medium.316L stainless steel is an austenitic stainless steel consisting molybdenum, and its corrosion resistance was improved much than normal stainless steel.

緩蝕劑是一種以適當(dāng)?shù)臐舛群秃托问酱嬖谟诃h(huán)境中時，可以防止或減緩腐蝕的化學(xué)物質(zhì)或幾種化學(xué)物質(zhì)的混合物黄片视频免费观看，合理使用緩蝕劑是防止金屬及其合金在環(huán)境介質(zhì)中發(fā)生腐蝕的有效方法国产清纯白嫩极品爽爽。

Granular corrosion products, surface corrosion pits, cracked and spalled passivation films are observed. The size of the corrosion pits is around several tens to several hundred nm in depth. After long testing time, lots of granular corrosion products ranging 200 to 300 nm in diameter are observed on the surface.

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The company sells aluminum alloy, steel, copper and aluminum compound, aluminum compound radiator elegant appearance of novel, surface treatment by phosphating using special plastic electrostatic spraying, spraying process is not rigorous to ensure that the spray does not blast off from, the Company Xinjin anti-corrosion treatment equipment within the vacuum will be filling three anti-corrosion materials, this technology to further enhance adhesion of anti-corrosion materials, eliminating the dead-end coating, the coating process to prevent the bubble wall formation enhances the adhesion within the anti-corrosion, greatly extended the radiator life.

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