{"id":2849,"date":"2020-07-14T06:14:18","date_gmt":"2020-07-14T06:14:18","guid":{"rendered":"https:\/\/3.212.105.250\/?p=2849"},"modified":"2025-07-26T15:09:34","modified_gmt":"2025-07-26T21:09:34","slug":"kahdenlaiset-katodisuojausjarjestelmat","status":"publish","type":"post","link":"https:\/\/vm6fr4whzn6.c.updraftclone.com\/fi\/2020\/07\/14\/kahdenlaiset-katodisuojausjarjestelmat\/","title":{"rendered":"Katodisuojausj\u00e4rjestelmien kaksi tyyppi\u00e4"},"content":{"rendered":"<p>Katodinen suojaus on erikoisj\u00e4rjestelm\u00e4, joka on suunniteltu pit\u00e4m\u00e4\u00e4n korroosio loitolla. Se on prosessi, joka est\u00e4\u00e4 korroosion muodostumisen metallipinnoille jopa eritt\u00e4in sy\u00f6vytt\u00e4viss\u00e4 ymp\u00e4rist\u00f6iss\u00e4. Se on tehokkain korroosiosuojausmuoto monilla teollisuudenaloilla. Tutustu t\u00e4h\u00e4n erittelyyn kahdesta katodisuojausj\u00e4rjestelm\u00e4tyypist\u00e4 ja selvit\u00e4 niiden v\u00e4liset erot ja yht\u00e4l\u00e4isyydet.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Mik\u00e4 on katodisuojausj\u00e4rjestelm\u00e4?<\/h2>\n\n\n\n<p>N\u00e4m\u00e4 j\u00e4rjestelm\u00e4t auttavat pys\u00e4ytt\u00e4m\u00e4\u00e4n korroosion luomalla s\u00e4hk\u00f6kemiallisen kennon. T\u00e4m\u00e4 piiri toimii pitk\u00e4lti kuten hyvin suuri paristo, jossa jokin metalli (tai rakenne) sy\u00f6pyy, kun taas toinen metalli ei sy\u00f6pynyt (katodi ei sy\u00f6pynyt). Koska katodi ei sy\u00f6vy n\u00e4iss\u00e4 s\u00e4hk\u00f6kennoissa, sit\u00e4 kutsutaan katodisuojaksi. Tavoitteena on tehd\u00e4 rakenne, jonka halutaan olevan <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/fi\/2023\/02\/17\/5-erilaista-katodisuojauksen-testauslaitetta\/'>suojaa katodia<\/a>. T\u00e4m\u00e4 voidaan tehd\u00e4 parilla eri tavalla; kumpikin varmistaa, ett\u00e4 jokin muu rakenne, josta et v\u00e4lit\u00e4, sy\u00f6pyy solussa.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Uhrautuvat katodisuojausj\u00e4rjestelm\u00e4t<\/h2>\n\n\n\n<p>N\u00e4m\u00e4 j\u00e4rjestelm\u00e4t toimivat k\u00e4ytt\u00e4m\u00e4ll\u00e4 uhrautuvia anodeja. Galvaaninen korroosio saavutetaan s\u00e4hk\u00f6-kemiallisella prosessilla, joka yhdist\u00e4\u00e4 useita metalleja s\u00e4hk\u00f6isesti. Uhrausanodien k\u00e4ytt\u00f6 suojaa metallirakenteita galvaaniselta korroosiolta. . <a href=\"https:\/\/vm6fr4whzn6.c.updraftclone.com\/fi\/2021\/03\/19\/miten-uhrausanodit-toimivat\/\">uhrausanodi on metallianodi.<\/a> joka on tarkoituksellisesti kytketty rakenteeseen s\u00e4hk\u00f6isesti, koska se reagoi korroosiota aiheuttavaan ymp\u00e4rist\u00f6\u00f6n paremmin kuin varsinainen metalli. N\u00e4in suojellaan metallirakennetta, koska uhrausanodi voi ruostua rakenteen sijaan. Uhrausanodit on korvattava, kun ne ovat sy\u00f6pyneet, mutta t\u00e4m\u00e4 prosessi on pitk\u00e4ik\u00e4inen ja onnistunut suojaamaan rakenteita korroosiolta.  Tyypillisi\u00e4 anodimateriaaleja ovat alumiini, sinkki ja magnesium.<\/p>\n\n\n\n<p><\/p>\n\n\n\n\n<div class=\"text-content-inner\">\n<p class=\"has-text-align-center\"><strong>Galvaanisilla anodeilla varustettu alus<\/strong><\/p>\n\n<p><\/p>\n<\/div>\n\n\n<p>Galvaanisen j\u00e4rjestelm\u00e4n k\u00e4ytt\u00f6ik\u00e4 riippuu suunnitteluvaatimuksista, k\u00e4ytettyjen anodien m\u00e4\u00e4r\u00e4st\u00e4 ja painosta sek\u00e4 asiakkaan tarpeista. N\u00e4m\u00e4 j\u00e4rjestelm\u00e4t voivat toimia rutiininomaisesti jopa 20 vuotta paikallisista maaper\u00e4tyypeist\u00e4 riippuen. Galvaaniset j\u00e4rjestelm\u00e4t soveltuvat yleens\u00e4 alhaisemman resistiivisyyden omaaviin maaperiin ja vedenalaisiin sovelluksiin.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Katodisuojausj\u00e4rjestelm\u00e4t, joissa on vaikuttava virta<\/h2>\n\n\n\n<p>Toista j\u00e4rjestelm\u00e4tyyppi\u00e4 kutsutaan vaikuttavan virran j\u00e4rjestelm\u00e4ksi, ja t\u00e4t\u00e4 j\u00e4rjestelm\u00e4tyyppi\u00e4 k\u00e4ytet\u00e4\u00e4n yleens\u00e4 silloin, kun galvaaniset j\u00e4rjestelm\u00e4t eiv\u00e4t riit\u00e4 est\u00e4m\u00e4\u00e4n korroosiota. Impulssivirtaj\u00e4rjestelm\u00e4t suojaavat metallirakenteita jopa \u00e4\u00e4rimm\u00e4isiss\u00e4 korroosiota aiheuttavissa ymp\u00e4rist\u00f6iss\u00e4. Impulssivirtaj\u00e4rjestelm\u00e4ss\u00e4 on aktiivinen tasavirtal\u00e4hde, jonka ansiosta metallirakenteeseen virtaa enemm\u00e4n virtaa. T\u00e4m\u00e4 tarjoaa tavallaan jatkuvan virran, joka suojaa korroosiolta. Se on yksi kaikkein <a href=\"https:\/\/vm6fr4whzn6.c.updraftclone.com\/fi\/2020\/04\/02\/tehokkaat-korroosiontorjuntamenetelmat\/\">tehokkaat korroosionestomenetelm\u00e4t<\/a> ja on poikkeuksellisen pitk\u00e4ik\u00e4inen.<\/p>\n\n\n\n<p><\/p>\n\n\n\n\n<div class=\"text-content-inner\">\n<p class=\"has-text-align-center\"><strong>Sekametallianodi (painettu virta)<\/strong><\/p>\n\n<p><\/p>\n<\/div>\n\n\n<p>Impedanssivirtaj\u00e4rjestelmiss\u00e4 k\u00e4ytet\u00e4\u00e4n tasasuuntaajaa, joka pakottaa virran ulos haudatusta tai upotetusta anodista. N\u00e4iden j\u00e4rjestelmien k\u00e4ytt\u00f6j\u00e4nnitteet ovat s\u00e4\u00e4dett\u00e4viss\u00e4 paikallisen maaper\u00e4n ja anodin j\u00e4ljell\u00e4 olevan k\u00e4ytt\u00f6i\u00e4n mukaan. Tarvittava virran m\u00e4\u00e4r\u00e4 voi vaihdella huomattavasti asennuksen mukaan, ja joissakin asennuksissa, kuten pinnoittamattomissa rantapylv\u00e4iss\u00e4, tarvitaan satoja ampeereja. Impressoidut j\u00e4rjestelm\u00e4t soveltuvat parhaiten korkean resistiivisyyden omaaviin maaperiin ja suuren virran vaatimiin j\u00e4rjestelmiin.<\/p>\n\n\n\n<p>Tyypillisi\u00e4 vaikuttavan virran anodeja ovat sekametallioksidi (MMO), valurauta, ter\u00e4s, grafiitti tai olemassa oleva metalliromu. N\u00e4iden j\u00e4rjestelmien k\u00e4ytt\u00f6ik\u00e4 voi olla jopa 40-50 vuotta, ja tyypillinen suunniteltu k\u00e4ytt\u00f6ik\u00e4 on 25-30 vuotta. Kun k\u00e4ytt\u00f6ik\u00e4 on lopussa, on asennettava uusi anodi, ja j\u00e4rjestelm\u00e4 voidaan palauttaa k\u00e4ytt\u00f6\u00f6n.<\/p>\n\n\n\n<p>N\u00e4iden j\u00e4rjestelmien liiallinen virran k\u00e4ytt\u00f6 voi aiheuttaa ongelmia rakenteissasi. N\u00e4it\u00e4 ongelmia voivat olla esimerkiksi vetyhaurastuminen ja pinnoitteen irtoaminen. Varmista, ett\u00e4 j\u00e4rjestelm\u00e4\u00e4 tarkastaa rutiininomaisesti valtuutettu asiantuntija. <a href=\"https:\/\/vm6fr4whzn6.c.updraftclone.com\/fi\/2023\/03\/10\/katodisuojausinsinoorit\/\">insin\u00f6\u00f6ri varmistaa, ett\u00e4 rakenne on suojattu oikein<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Mink\u00e4 j\u00e4rjestelm\u00e4n tarvitset?<\/h2>\n\n\n\n<p>Ammattitaitoisen insin\u00f6\u00f6rin suosittelema j\u00e4rjestelm\u00e4 riippuu suuresti hankkeen vaatimuksista ja eritelmist\u00e4. Jos et tied\u00e4, mit\u00e4 k\u00e4ytt\u00e4\u00e4 tai mist\u00e4 aloittaa, ensimm\u00e4inen askel on l\u00f6yt\u00e4\u00e4 laillistettu insin\u00f6\u00f6ri, joka auttaa sinua tekem\u00e4\u00e4n p\u00e4\u00e4t\u00f6ksen katodisuojausj\u00e4rjestelmien v\u00e4lill\u00e4. Kullakin j\u00e4rjestelm\u00e4ll\u00e4 on oma paras k\u00e4ytt\u00f6skenaarionsa, ja mit\u00e4 aikaisemmin hankit <a href=\"https:\/\/ampp.org\/education\/education-resources\/courses-by-program\/cathodic-protection\/cp-specialist\">katodisen suojauksen asiantuntija<\/a> Mit\u00e4 useampi henkil\u00f6 on mukana, sit\u00e4 nopeammin ja edullisemmin j\u00e4rjestelm\u00e4 on valmis. Insin\u00f6\u00f6rin on tarkistettava kaikki maadoitussuunnitelmat, maaper\u00e4n resistiivisyys ja putkisto. <a href=\"https:\/\/vm6fr4whzn6.c.updraftclone.com\/fi\/konsultointialueet\/sahkoteho\/suunnittelupalvelut\/\">s\u00e4hk\u00f6iset eristyssuunnitelmat, jotta voidaan mitoittaa ja suunnitella<\/a> j\u00e4rjestelm\u00e4si kunnolla. Molemmat j\u00e4rjestelm\u00e4t toimivat tehokkaimmin pinnoitetuissa rakenteissa, joissa pinnoitetta voidaan k\u00e4ytt\u00e4\u00e4.<\/p>\n\n\n\n<p>Ota yhteytt\u00e4 Dreiym Engineeringiin tai kaikkiin katodisuojaustarpeisiisi. Ammattitaitoiset insin\u00f6\u00f6rimme voivat suorittaa <a href=\"https:\/\/vm6fr4whzn6.c.updraftclone.com\/fi\/services\/korroosio\/katodisuojapotentiaalin-tutkimukset\/\" rel=\"noopener noreferrer\">cp-tutkimus <\/a>auttaa sinua m\u00e4\u00e4ritt\u00e4m\u00e4\u00e4n parhaat toimenpiteet metallirakenteesi korroosion est\u00e4miseksi. K\u00e4yt\u00f6ss\u00e4mme on lisensoitujen insin\u00f6\u00f6rien ryhm\u00e4, joka laatii kanssasi suunnitelman, joka suojaa rakenteesi parhaiten korroosion haitallisilta vaikutuksilta.<\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Cathodic protection is a specialty system designed to keep corrosion at bay. It is a process that prevents corrosion from forming on metal surfaces, even in very corrosive environments. It is the most effective form of corrosion protection for many industries. Check out this breakdown of the two types of cathodic protection systems to discover [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":3472,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_mbp_gutenberg_autopost":false,"_pgmb_is_evergreen":true,"_pgmb_ap_template_id":0,"iawp_total_views":289,"footnotes":""},"categories":[5],"tags":[],"class_list":["post-2849","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-corrosion-and-cathodic-protection"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 4.9.6.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"Cathodic protection is a specialty system designed to keep corrosion at bay. It is a process that prevents corrosion from forming on metal surfaces, even in ve\" \/>\n\t<meta name=\"robots\" content=\"noindex, nofollow, max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Angela Jones\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/vm6fr4whzn6.c.updraftclone.com\/fi\/2020\/07\/14\/kahdenlaiset-katodisuojausjarjestelmat\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO Pro (AIOSEO) 4.9.6.2\" \/>\n\t\t<meta property=\"og:locale\" content=\"fi_FI\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Dreiym Engineering PLLC \u00bb Electrical and Corrosion Experts\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"The Two Types of Cathodic Protection Systems\" \/>\n\t\t<meta property=\"og:description\" content=\"Cathodic protection is a specialty system designed to keep corrosion at bay. 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