{"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":"y-ddau-fath-o-systemau-amddiffyn-cathodig","status":"publish","type":"post","link":"https:\/\/vm6fr4whzn6.c.updraftclone.com\/cy\/2020\/07\/14\/y-ddau-fath-o-systemau-amddiffyn-cathodig\/","title":{"rendered":"Y Dau Fath o Systemau Amddiffyn Cathodig"},"content":{"rendered":"<p>Mae amddiffyniad cathodig yn system arbenigol sydd wedi&#039;i chynllunio i gadw cyrydiad draw. Mae&#039;n broses sy&#039;n atal cyrydiad rhag ffurfio ar arwynebau metel, hyd yn oed mewn amgylcheddau cyrydol iawn. Dyma&#039;r ffurf fwyaf effeithiol o amddiffyniad cyrydiad ar gyfer llawer o ddiwydiannau. Edrychwch ar y dadansoddiad hwn o&#039;r ddau fath o systemau amddiffyn cathodig i ddarganfod y gwahaniaethau a&#039;r tebygrwydd rhyngddynt.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Beth yw system amddiffyn cathodig?<\/h2>\n\n\n\n<p>Mae&#039;r systemau hyn yn helpu i atal cyrydiad trwy greu cell electrogemegol. Mae&#039;r gylched hon yn gweithio&#039;n debyg iawn i fatri mawr iawn, lle mae rhywfaint o fetel (neu strwythur) yn cyrydu tra nad yw metel arall yn gwneud hynny (nid yw&#039;r catod yn cyrydu). Y ffaith nad yw&#039;r catod yn cyrydu yn y celloedd trydanol hyn yw pam ei fod yn cael ei alw&#039;n amddiffyniad cathodig. Y nod yw gwneud strwythur rydych chi eisiau ei greu. <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/cy\/2023\/02\/17\/5-math-o-offer-profi-amddiffyniad-cathodig\/'>amddiffyn y catod<\/a>Gellir gwneud hyn mewn cwpl o ffyrdd; mae pob un yn sicrhau bod rhyw strwythur arall nad ydych chi&#039;n poeni amdano yn cyrydu yn y gell.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Systemau amddiffyn cathodig aberthol<\/h2>\n\n\n\n<p>Mae&#039;r systemau hyn yn gweithio trwy ddefnyddio anodau aberthol. Cyflawnir cyrydiad galfanig trwy broses drydanol-gemegol sy&#039;n cysylltu metelau lluosog yn drydanol. Mae ei ddefnydd o anodau aberthol yn amddiffyn y strwythurau metel rhag cyrydiad galfanig. Y <a href=\"https:\/\/vm6fr4whzn6.c.updraftclone.com\/cy\/2021\/03\/19\/sut-mae-anodau-aberthol-yn-gweithredu\/\">anod aberthol yw anod metel<\/a> sydd wedi&#039;i gysylltu&#039;n drydanol yn fwriadol \u00e2&#039;r strwythur oherwydd ei fod yn fwy adweithiol i&#039;r amgylchedd cyrydol na&#039;r metel gwirioneddol. Mae hyn yn gweithio i amddiffyn y strwythur metel trwy ganiat\u00e1u i&#039;r anod aberthol gyrydu yn hytrach na&#039;r strwythur. Rhaid disodli&#039;r anodau aberthol hyn unwaith y byddant wedi cyrydu, ond mae&#039;r broses hon yn hirhoedlog ac yn llwyddiannus wrth amddiffyn strwythurau rhag cyrydiad. Deunyddiau anod nodweddiadol yw alwminiwm, sinc, a magnesiwm.<\/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>Llongau gydag Anodau Galfanig<\/strong><\/p>\n\n<p><\/p>\n<\/div>\n\n\n<p>Mae hyd oes system galfanig yn dibynnu ar y gofynion dylunio, nifer a phwysau&#039;r anodau a ddefnyddir, ac anghenion cwsmeriaid. Gall y systemau hyn weithredu&#039;n rheolaidd hyd at 20 mlynedd, yn dibynnu ar y mathau o bridd lleol. Yn gyffredinol, mae systemau galfanig yn addas ar gyfer priddoedd gwrthiant is a chymwysiadau tanddwr.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Systemau amddiffyn cathodig cyfredol wedi&#039;u hargraffu<\/h2>\n\n\n\n<p>Gelwir yr ail fath o system yn system gerrynt argraffedig, a defnyddir y math hwn o system fel arfer pan nad yw systemau galfanig yn ddigonol i atal cyrydiad. Mae systemau cerrynt argraffedig yn amddiffyn strwythurau metel hyd yn oed yn yr amgylcheddau cyrydol mwyaf eithafol. Mewn system gerrynt argraffedig, mae ffynhonnell p\u0175er DC weithredol, sy&#039;n caniat\u00e1u i fwy o gerrynt lifo i&#039;r strwythur metel. Mewn ffordd, mae hyn yn darparu llif cyson o amddiffyniad rhag cyrydiad. Mae&#039;n un o&#039;r rhai mwyaf <a href=\"https:\/\/vm6fr4whzn6.c.updraftclone.com\/cy\/2020\/04\/02\/dulliau-rheoli-cyrydiad-effeithiol\/\">dulliau atal cyrydiad effeithiol<\/a> ac mae&#039;n eithriadol o hirhoedlog.<\/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>Anod Metel Cymysg (Cerrynt Argraffedig)<\/strong><\/p>\n\n<p><\/p>\n<\/div>\n\n\n<p>Mae systemau cerrynt argraffedig yn defnyddio unionydd sy&#039;n gorfodi cerrynt allan o anod wedi&#039;i gladdu neu ei foddi. Mae folteddau gyrru ar gyfer y systemau hyn yn addasadwy, yn dibynnu ar y priddoedd lleol a&#039;r oes sy&#039;n weddill yn yr anod. Gall yr allbwn cerrynt gofynnol amrywio&#039;n sylweddol yn \u00f4l y gosodiad, gyda rhai gosodiadau, fel polion morglawdd heb eu gorchuddio, yn gofyn am gannoedd o ampiau. Mae systemau argraffedig yn fwyaf addas ar gyfer priddoedd gwrthiant uchel a systemau gofyniad cerrynt uchel.<\/p>\n\n\n\n<p>Mae anodau cerrynt argraffedig nodweddiadol yn cynnwys ocsid metel cymysg (MMO), haearn bwrw, dur, graffit, neu fetel sgrap presennol. Gall oes y systemau hyn bara hyd at 40 i 50 mlynedd, gydag oes ddylunio nodweddiadol o 25-30. Unwaith y cyrhaeddir diwedd yr oes, bydd angen gosod anod newydd, a gellir dychwelyd y system i&#039;w defnyddio.<\/p>\n\n\n\n<p>Gall gor-gymhwyso cerrynt o&#039;r systemau hyn arwain at broblemau gyda&#039;ch strwythur. Gall y problemau hyn gynnwys brau hydrogen a dad-fondio&#039;r haen. Gwnewch yn si\u0175r bod y system yn cael ei gwirio&#039;n rheolaidd gan berson trwyddedig. <a href=\"https:\/\/vm6fr4whzn6.c.updraftclone.com\/cy\/2023\/03\/10\/peirianwyr-amddiffyn-cathodig\/\">peiriannydd i sicrhau bod eich strwythur wedi&#039;i ddiogelu&#039;n gywir<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pa system sydd ei hangen arnoch chi?<\/h2>\n\n\n\n<p>Mae&#039;r system a argymhellir gan beiriannydd proffesiynol yn dibynnu&#039;n fawr ar ofynion a manylebau&#039;r prosiect. Os nad ydych chi&#039;n gwybod beth i&#039;w ddefnyddio neu ble i ddechrau, y cam cyntaf yw dod o hyd i beiriannydd trwyddedig i&#039;ch helpu i benderfynu rhwng systemau amddiffyn cathodig. Mae gan bob system ei senario defnydd gorau, a pho gynharaf y byddwch chi&#039;n ei gael <a href=\"https:\/\/ampp.org\/education\/education-resources\/courses-by-program\/cathodic-protection\/cp-specialist\">arbenigwr amddiffyn cathodig<\/a> y cynharaf a&#039;r rhataf fydd y system, y mwyaf y bydd yn gysylltiedig. Rhaid i&#039;r peiriannydd adolygu&#039;r holl gynlluniau seilio, gwrthiant pridd, a&#039;r biblinell. <a href=\"https:\/\/vm6fr4whzn6.c.updraftclone.com\/cy\/meysydd-ymgynghori\/pwer-trydanol\/gwasanaethau-dylunio\/\">cynlluniau ynysu trydanol er mwyn maint a dyluniad<\/a> eich system yn iawn. Mae&#039;r ddau system yn gweithredu fwyaf effeithlon ar strwythurau wedi&#039;u gorchuddio, lle gellir defnyddio cotio.<\/p>\n\n\n\n<p>Cysylltwch \u00e2 Dreiym Engineering ar gyfer eich holl anghenion amddiffyn cathodig. Gall ein peirianwyr proffesiynol gwblhau <a href=\"https:\/\/vm6fr4whzn6.c.updraftclone.com\/cy\/services\/cyrydiad\/arolygon-potensial-amddiffyn-cathodig\/\" rel=\"noopener noreferrer\">arolwg cp <\/a>i&#039;ch helpu i benderfynu ar y camau gweithredu gorau i atal cyrydiad ar eich strwythur metel. Rydym yn cyflogi t\u00eem o beirianwyr trwyddedig a fydd yn gweithio gyda chi i lunio cynllun sy&#039;n amddiffyn eich strwythurau orau rhag effeithiau niweidiol cyrydiad.<\/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. 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