{"id":2450,"date":"2024-06-19T20:19:32","date_gmt":"2024-06-19T18:19:32","guid":{"rendered":"https:\/\/www.pinnoitushelin.fi\/coating-techniques\/electrogalvanising\/"},"modified":"2024-07-30T07:46:47","modified_gmt":"2024-07-30T05:46:47","slug":"electrogalvanising","status":"publish","type":"page","link":"https:\/\/www.pinnoitushelin.fi\/en\/coating-techniques\/electrogalvanising\/","title":{"rendered":"Electrogalvanising"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row equal_height=&#8221;yes&#8221; content_placement=&#8221;middle&#8221; css=&#8221;.vc_custom_1717628348671{margin-bottom: 40px !important;}&#8221;][vc_column width=&#8221;1\/2&#8243; css=&#8221;.vc_custom_1717628091127{padding-bottom: 20px !important;}&#8221;][vc_column_text css=&#8221;&#8221;]Electrogalvanising is the most common electrolytic coating for steel.<br \/>\nThe resulting coating provides reasonable corrosion protection and a pleasing appearance at low cost.<br \/>\nThe coating is also often used underneath painting to improve the corrosion properties and adhesion of the paint.[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_single_image image=&#8221;1937&#8243; img_size=&#8221;large&#8221; css=&#8221;&#8221;][\/vc_column][\/vc_row][vc_row equal_height=&#8221;yes&#8221; css=&#8221;.vc_custom_1718820603748{margin-bottom: 40px !important;}&#8221;][vc_column width=&#8221;1\/3&#8243; css=&#8221;.vc_custom_1717628059564{padding-bottom: 20px !important;}&#8221;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h3>Electro-galvanising:<\/h3>\n<ul>\n<li>We use an alkaline cyanide-free zinc bath<\/li>\n<li>Electro-galvanising with drum and suspension techniques<\/li>\n<li>Maximum dimensions of the piece to be galvanized: 2000x1000x400<\/li>\n<\/ul>\n<p>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/3&#8243; css=&#8221;.vc_custom_1718820497171{padding-bottom: 20px !important;}&#8221;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h3>The passive voice:<\/h3>\n<ul>\n<li>blue passivation, Cr3+<\/li>\n<li>black passivation, Cr3+<\/li>\n<li>thick film passivation Cr3+<\/li>\n<li>after-box (sealer)<\/li>\n<li>All passivation and after-treatments RoHS compliant<\/li>\n<\/ul>\n<p>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/3&#8243;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h3>Electrogalvanizing standards:<\/h3>\n<ul>\n<li>Electroplated coatings of zinc with supplementary treatments on iron or steel (ISO 2081:2018)<\/li>\n<li>Fasteners &#8211; Electroplated coatings (ISO 4042:2018)<\/li>\n<li>Metallic coatings &#8211; Electroplated coatings of zinc and zinc alloys on iron or steel with supplementary Cr(VI)-free treatment (ISO 19598:2016)<\/li>\n<li>Corrosion tests in artificial atmospheres.<br \/>\nSalt spray tests (ISO 9227:2017) <\/li>\n<\/ul>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row equal_height=&#8221;yes&#8221; css=&#8221;.vc_custom_1718820603748{margin-bottom: 40px !important;}&#8221;][vc_column css=&#8221;.vc_custom_1717628059564{padding-bottom: 20px !important;}&#8221;][vc_column_text css=&#8221;&#8221;]Zinc and electro-galvanising provide cathodic protection to the steel, so small scratches in the coating do not cause immediate rusting of the steel.<br \/>\nCorrosion resistance modelling determines the time that the coating must last before red rust appears on the piece.<br \/>\nThe most common modelling is the neutral salt spray test according to ISO 9227:2006.  <\/p>\n<p>Most commonly, electroplating of zinc is passivated in order to slow down the oxidation of zinc as much as possible.<br \/>\nThe passivation therefore protects the zinc from white rust and the zinc itself protects the substrate from red rust.<br \/>\nNowadays, especially for passivations under the new RoHS and ELV Directives, the passivation is often used to protect the metal against the so called &#8220;tin plating&#8221;.<br \/>\nsealer, which achieves a significant improvement in corrosion values.<br \/>\nThe resistance of the coating against white corrosion is determined in the final test according to how long the passivation (and post-coating) can withstand salt spray.<br \/>\nThe drawings may indicate the required durations, e.g. 200\/400 h, for white rust and red rust.     <\/p>\n<p>Today, almost all baths in use are either acidic or alkaline.<br \/>\nAcid zinc is more lustrous in appearance than alkaline.<br \/>\nThe ability of an alkaline bath to spread the zinc coating evenly over the different parts of the piece is much better than an acid bath.<br \/>\nWith few exceptions, the cyanide bath has been phased out.[\/vc_column_text][\/vc_column][\/vc_row][vc_row equal_height=&#8221;yes&#8221; content_placement=&#8221;middle&#8221; css=&#8221;.vc_custom_1717628348671{margin-bottom: 40px !important;}&#8221;][vc_column width=&#8221;1\/2&#8243; css=&#8221;.vc_custom_1717628091127{padding-bottom: 20px !important;}&#8221;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h3>The basics of zinc plating<\/h3>\n<p>Galvanising is the process of coating the surface of a metal with a layer of zinc to protect it from corrosion and give it a more pleasing appearance.<br \/>\nGalvanising, or zinc coating, gives a brighter and more even layer than hot-dip galvanising.<br \/>\nThe advantage of hot-dip galvanising is a thicker zinc layer and therefore corrosion protection.<br \/>\nElectrogalvanised parts are usually passivated and post-cast, which clearly improves the corrosion resistance of the part.<br \/>\nGalvanising gives the piece better properties at a lower cost.<br \/>\nThe process is well suited to most iron or steel parts.     <\/p>\n<h3>Zinc plating according to your needs<\/h3>\n<p>Thanks to our long experience and the equipment we have at our disposal, electrogalvanising can be carried out very cost-effectively, whether for small or large production batches.<\/p>\n<p>Contact us &#8211; we&#8217;ll be happy to tell you more.[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_single_image image=&#8221;1941&#8243; img_size=&#8221;large&#8221; css=&#8221;&#8221;][\/vc_column][\/vc_row][vc_row css=&#8221;.vc_custom_1717628491247{margin-bottom: 40px !important;}&#8221;][vc_column css=&#8221;.vc_custom_1717628059564{padding-bottom: 20px !important;}&#8221;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h4>Contact us to inquire about the possibility of a sample.<\/h4>\n<h4>Ask more or submit a request for a quote<\/h4>\n<p>[\/vc_column_text][vc_row_inner equal_height=&#8221;yes&#8221; gap=&#8221;10&#8243; css=&#8221;.vc_custom_1718821140753{margin-top: 25px !important;}&#8221;][vc_column_inner width=&#8221;1\/5&#8243;]<style type=\"text\/css\" data-type=\"the7_shortcodes-inline-css\">#default-btn-c9e6a893832d815f771616eb83804464.ico-right-side > i {\n  margin-right: 0px;\n  margin-left: 8px;\n}\n#default-btn-c9e6a893832d815f771616eb83804464 > i {\n  margin-right: 8px;\n}<\/style><a href=\"tel:+358106174100\" class=\"default-btn-shortcode dt-btn dt-btn-m link-hover-off ico-right-side btn-inline-left \" id=\"default-btn-c9e6a893832d815f771616eb83804464\" style=\"width:200px;\" title=\"Soita meille\"><span>Coating hotline<\/span><i class=\"icomoon-the7-font-the7-phone-05\"><\/i><\/a>[\/vc_column_inner][vc_column_inner width=&#8221;1\/5&#8243;]<style type=\"text\/css\" data-type=\"the7_shortcodes-inline-css\">#default-btn-38402fa57a00de4d2199ce4834b5daf5.ico-right-side > i {\n  margin-right: 0px;\n  margin-left: 8px;\n}\n#default-btn-38402fa57a00de4d2199ce4834b5daf5 > i {\n  margin-right: 8px;\n}<\/style><a href=\"mailto:info@pinnoitushelin.fi?subject=Tarjouspyynt\u00f6\" class=\"default-btn-shortcode dt-btn dt-btn-m link-hover-off ico-right-side btn-inline-left \" id=\"default-btn-38402fa57a00de4d2199ce4834b5daf5\" style=\"width:200px;\" title=\"J\u00e4t\u00e4 tarjouspyynt\u00f6\"><span>Offer request<\/span><i class=\"icomoon-the7-font-the7-mail-01\"><\/i><\/a>[\/vc_column_inner][vc_column_inner width=&#8221;1\/5&#8243;]<style type=\"text\/css\" data-type=\"the7_shortcodes-inline-css\">#default-btn-bc9c069d4d670b6eef6a84967e581177.ico-right-side > i {\n  margin-right: 0px;\n  margin-left: 8px;\n}\n#default-btn-bc9c069d4d670b6eef6a84967e581177 > i {\n  margin-right: 8px;\n}<\/style><a href=\"\/yhteystiedot\/#yhteydenotto\" class=\"default-btn-shortcode dt-btn dt-btn-m link-hover-off ico-right-side btn-inline-left \" id=\"default-btn-bc9c069d4d670b6eef6a84967e581177\" style=\"width:200px;\" title=\"Ota yhteytt\u00e4\"><span>Contact us<\/span><i class=\"dt-icon-the7-menu-012\"><\/i><\/a>[\/vc_column_inner][vc_column_inner width=&#8221;1\/5&#8243;][\/vc_column_inner][vc_column_inner width=&#8221;1\/5&#8243;][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row bg_type=&#8221;bg_color&#8221; bg_override=&#8221;full&#8221; css=&#8221;.vc_custom_1719351634384{margin-bottom: -30px !important;}&#8221;][vc_column offset=&#8221;vc_hidden-md vc_hidden-sm vc_hidden-xs&#8221;][vc_single_image image=&#8221;2134&#8243; img_size=&#8221;full&#8221; alignment=&#8221;right&#8221; css=&#8221;.vc_custom_1722244499456{margin-bottom: -125px !important;}&#8221; image_hovers=&#8221;false&#8221;][\/vc_column][\/vc_row][vc_row bg_type=&#8221;bg_color&#8221; bg_override=&#8221;full&#8221; css=&#8221;.vc_custom_1719351634384{margin-bottom: -30px !important;}&#8221;][vc_column offset=&#8221;vc_hidden-lg&#8221;][vc_single_image image=&#8221;2134&#8243; img_size=&#8221;full&#8221; alignment=&#8221;right&#8221; css=&#8221;.vc_custom_1722280218413{margin-bottom: -85px !important;}&#8221; image_hovers=&#8221;false&#8221;][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row equal_height=&#8221;yes&#8221; content_placement=&#8221;middle&#8221; css=&#8221;.vc_custom_1717628348671{margin-bottom: 40px !important;}&#8221;][vc_column width=&#8221;1\/2&#8243; css=&#8221;.vc_custom_1717628091127{padding-bottom: 20px !important;}&#8221;][vc_column_text css=&#8221;&#8221;]Electrogalvanising is the most common electrolytic coating for steel. The resulting coating provides reasonable corrosion protection and a pleasing appearance at low cost. The coating is also often used underneath painting to improve the corrosion properties and adhesion of the paint.[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_single_image image=&#8221;1937&#8243; img_size=&#8221;large&#8221; css=&#8221;&#8221;][\/vc_column][\/vc_row][vc_row&hellip;<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":2441,"menu_order":22,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2450","page","type-page","status-publish","hentry","description-off"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Electrogalvanising - Pinnoitus Helin Oy<\/title>\n<meta name=\"description\" content=\"Electrogalvanising is the most common electrolytic coating for steel. 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