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ABOUT US

Zinc-nickel Infiltration Invention patent owner

Chongqing Dayou Surface Technology Co., Ltd. founded in 2007 is a high-tech business engaged in the R&D and production of new materials, new equipment and new technologies related to ferrous metal surface modification.So far, we have obtained the title of National Intellectual Property Advantage Enterprise

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Hand in Hand, Thank You for the New Year Conference of 2017
Thenewyearisfullofnewgoalsandpursuits.Thehopeful2017hasstridedtowardsus.Lookingbackonthepast2016,therearestruggles,perseverance,joy,harvest,andeveryhard-workingyou.OnJanuary25,2017,at3p.m.,ChongqingDayouandRongchangDayouFootballFriendshipTournamentwasinfullswing.Inthecheersofcheerleadersonthesidelines,thetwoteamswillfightbravelyonthegreenfield.Thisisnotonlyapassionateandenthusiasticgame,butalsoashowofperseverance,tenacityandcourage.Italsoshowsustheperseveranceofunitingandadvancinghandinhand.  Intensefootballfriendship  Cheerleaders At5:30p.m.,theNewYearConferenceofChongqing/RongchangDayouSurfaceTechnologyCo.,Ltd.openedwarmly.ChongqingDayouandRongchangDayouallgatheredtogethertocelebratethefestival.Aseachofthesmilesthatgrewupin2016withBigOnesblossomedontheprojectionscreenonebyone,colleagueschantedtheirnamesonebyone.WhenallthesmilesconvergeintoalargenumberofLOGO,theannualmeetingalsousheredinthefirstsmallclimax. Thankyouverymuch. Afterthewarmstart,GeneralManagerRenYuzhongdeliveredaNewYearspeech.Thespeechsummarizedtheachievementsofthecompanyinthepastyear,gavefullaffirmationtotheworkin2016,thankedallthestafffortheireffortsinthedevelopmentofthecompany,alsoputforwardtheobjectivesforthecompany'sbusinessdevelopmentin2017,andextendedfestivegreetingsandblessingstoallstaff.  AddressbyRenYuzhong,GeneralManager  AdvancedEmployeesin2016Subsequently,thecompanycommendedtheadvancedemployeesin2016,andcalledonallcolleaguestolearnfromthem,fulfilltheirdutiesintheirrespectivepositions,developteamspirit,andworktogetherforthefutureofmost.  Sharingfeast  GeneralManagerandSpecialAwardWinnerWuChangyong Thankyouin2016.In2017,wewillworktogethertocreateanothermiracle.
What are the factors that cause metal rust in the rust treatment
(1)atmosphericrelativehumidityAtthesametemperature,theatmosphericwatervaporcontentandthepercentageofwatervaporsaturatedcontent,calledrelativehumidity.Inarelativehumiditybelowthemetalcorrosionrateisverysmall,buthigherthanthatofrelativehumidity,thecorrosionspeedsuddenlyincreased.Thisrelativehumidityiscalledthecriticalhumidity.Thecriticalhumidityofmanymetalsisbetween80%and50%,andthesteelisabout75%.TheeffectofatmosphericrelativehumidityonCorrosionofmetalisthebiggest.Whentheairhumidityishigherthanthecriticalhumidity,themetalsurfacewillappearwaterfilmordropsofwater,iftheatmospherecontainingharmfulimpuritiesdissolvedinwater,theelectrolytemembranedrops,aggravatecorrosion. (2)airtemperatureandhumidityTherelationshipbetweenairtemperatureandhumidityaffectsthecorrosionofmetal.Herearesomeofthefollowing:first,theatmosphericwatervaporcontent,withtheincreaseintemperatureandincrease;second,thehightemperaturetopromotecorrosion,especiallyinthehumidenvironment,thehigherthetemperature,thefasterthecorrosionrate.Whentherelativehumidityislow,theeffectofthetemperatureonthecorrosionisnotobvious,butwhenthetemperatureishigherthanthecriticalhumidity,theamountofcorrosionincreasesrapidly.Inaddition,ifthereisadifferencebetweentheatmosphereandthemetal,thetemperatureislowinthemetalsurfaceoftheformationofcondensationwater,butalsoleadtorust. (3)corrosivegasesCorrosivegaspollutionintheair,withthegreatestimpactofsulfurdioxideonmetalcorrosion,especiallytheharmespeciallytosteel,copperanditsalloys.Sulfurdioxideintheatmosphereismainlyderivedfromthecombustionofcoal.Atthesametime,thecombustionproductsofcarbondioxidealsohasacorrosiveeffect.Corrosivegasesmixedintheatmospherearoundtheplant.Suchashydrogensulfide,ammonia,hydrochloricacidgasandsoonarethefactorstopromotethecorrosionofmetal.Ofcourse,theatmosphereofoxygeninthemetalcorrosionisthemostcommon,andatanytimeanywhere,itisself-evident. (4)otherfactorsTheatmospherecontainsalotofdust,suchassmoke,ash,chlorideandotheracid,alkaliandsaltparticles,someitselfiscorrosive,orwatercondensationnuclei,arealsofactorssuchascorrosion,corrosionofmetalchloridesareconsideredas"enemies".

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