{"id":6087883,"date":"2026-05-29T09:41:04","date_gmt":"2026-05-29T07:41:04","guid":{"rendered":"https:\/\/boeck-technology.de\/?page_id=6087883"},"modified":"2026-06-01T11:19:46","modified_gmt":"2026-06-01T09:19:46","slug":"tinder","status":"publish","type":"page","link":"https:\/\/staging.boeck-technology.de\/en\/glossar\/blech\/zunder\/","title":{"rendered":"Mill Scale"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"6087883\" class=\"elementor elementor-6087883\" data-elementor-post-type=\"page\">\n\t\t\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-5687ac41 process-line wd-section-stretch e-flex e-con-boxed e-con e-parent\" data-id=\"5687ac41\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"wd-negative-gap elementor-element elementor-element-78912b3a e-flex e-con-boxed e-con e-child\" data-id=\"78912b3a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7b403ad4 elementor-widget__width-auto tfc-scoreboard elementor-widget elementor-widget-heading\" data-id=\"7b403ad4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Mill Scale<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5bede6d8 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"5bede6d8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Mill scale refers to oxide layers on metal surfaces that are formed by thermal effects during cutting, heating, or forming processes.<br \/>The oxide layer affects subsequent processing and coating processes.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"wd-negative-gap elementor-element elementor-element-39392e4 wd-section-stretch e-flex e-con-boxed e-con e-child\" data-id=\"39392e4\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-210fc36c elementor-widget elementor-widget-html\" data-id=\"210fc36c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<section class=\"boeck-glossar-entry\">\r\n\r\n  <h2>Formation of tinder<\/h2>\r\n\r\n  <p>\r\n    Scale forms when metal surfaces react with oxygen at high temperatures. This process creates oxide layers of varying thickness and adhesion on the surface or cut edges of sheet metal components.\r\n  <\/p>\r\n\r\n  <div class=\"boeck-info-box\">\r\n\r\n    <h3>Factors influencing mill scale formation<\/h3>\r\n\r\n    <ul>\r\n      <li>temperature load<\/li>\r\n      <li>oxygen input<\/li>\r\n      <li>material composition<\/li>\r\n      <li>separation process<\/li>\r\n      <li>process duration<\/li>\r\n    <\/ul>\r\n\r\n  <\/div>\r\n\r\n  <h2>Impact on subsequent processes<\/h2>\r\n\r\n  <p>\r\n    Residual mill scale affects surface quality and can hinder stable downstream processes. In particular, coating, welding, and bonding processes are sensitive to oxide residues on the component surface.\r\n  <\/p>\r\n\r\n  <div class=\"boeck-info-box\">\r\n\r\n    <h3>Typical effects<\/h3>\r\n\r\n    <ul>\r\n      <li>reduced coating adhesion<\/li>\r\n      <li>unequal surface conditions<\/li>\r\n      <li>unstable subsequent processes<\/li>\r\n      <li>increased post-processing effort<\/li>\r\n      <li>impairment of surface appearance<\/li>\r\n    <\/ul>\r\n\r\n  <\/div>\r\n\r\n  <h2>Mill scale in the context of oxide removal<\/h2>\r\n\r\n  <p>\r\n    In the oxide removal process step, oxide layers are mechanically removed to produce clean metallic surfaces and reproducible initial conditions for subsequent processes.\r\n  <\/p>\r\n\r\n  <div class=\"boeck-process-box\">\r\n\r\n    <span>Related process step<\/span>\r\n\r\n    <a href=\"\/en\/oxide-removal-sheet-metal\/\">\r\n      Oxide removal sheet metal\r\n    <\/a>\r\n\r\n  <\/div>\r\n\r\n  <h2>Difference between mill scale and slag<\/h2>\r\n\r\n  <p>\r\n    Slag describes molten and subsequently solidified material deposits on the cutting edge.\nMill scale, on the other hand, forms as an oxide reaction layer on the surface of the material.\r\n  <\/p>\r\n\r\n  <div class=\"boeck-info-box\">\r\n\r\n    <h3>Technical differences<\/h3>\r\n\r\n    <ul>\r\n      <li>\r\n        <strong>Slag:<\/strong>\r\n        molten and solidified material\r\n      <\/li>\r\n\r\n      <li>\r\n        <strong>Mill scale:<\/strong>\r\n        oxide surface layer\r\n      <\/li>\r\n\r\n      <li>\r\n        <strong>Slag:<\/strong>\r\n        predominantly at cut edges\r\n      <\/li>\r\n\r\n      <li>\r\n        <strong>Mill scale:<\/strong>\r\n        flat on metal surfaces\r\n      <\/li>\r\n\r\n    <\/ul>\r\n\r\n  <\/div>\r\n\r\n  <h2>FAQ<\/h2>\r\n\r\n  <div class=\"boeck-faq-item\">\r\n\r\n    <h3>Why does mill scale need to be removed?<\/h3>\r\n\r\n    <p>\r\n      Residual mill scale can impair coating adhesion and lead to unstable downstream processes.\r\n    <\/p>\r\n\r\n  <\/div>\r\n\r\n  <div class=\"boeck-faq-item\">\r\n\r\n    <h3>In which processes does mill scale form?<\/h3>\r\n\r\n    <p>\r\n      Scale is primarily formed during thermal machining processes involving high temperature stress and contact with oxygen.\r\n    <\/p>\r\n\r\n  <\/div>\r\n\r\n  <h2>Further topics<\/h2>\r\n\r\n  <div class=\"boeck-link-grid\">\r\n\r\n    <a href=\"\/en\/oxide-removal-sheet-metal\/\" class=\"boeck-link-card\">\r\n\r\n      <strong>Oxide removal sheet metal<\/strong>\r\n\r\n      <span>\r\n        Process for removing oxide layers from metal surfaces.\r\n      <\/span>\r\n\r\n    <\/a>\r\n\r\n    <a href=\"\/en\/glossary\/sheet-metal\/slag\/\" class=\"boeck-link-card\">\r\n\r\n      <strong>slag<\/strong>\r\n\r\n      <span>\r\n        Melted and resolidified material deposits on cut edges.\r\n      <\/span>\r\n\r\n    <\/a>\r\n\r\n    <a href=\"\/en\/glossary\/sheet-metal\/oxide-layer\/\" class=\"boeck-link-card\">\r\n\r\n      <strong>Oxide layer<\/strong>\r\n\r\n      <span>\r\n        Reaction layer on metal surfaces due to oxygen exposure.\r\n      <\/span>\r\n\r\n    <\/a>\r\n\r\n    <a href=\"\/en\/surface-finish-sheet-metal\/\" class=\"boeck-link-card\">\r\n\r\n      <strong>Surface finish sheet metal<\/strong>\r\n\r\n      <span>\r\n        Process for generating defined surface states.\r\n      <\/span>\r\n\r\n    <\/a>\r\n\r\n  <\/div>\r\n\r\n<\/section>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Scale refers to oxide layers on metal surfaces that form due to thermal effects during cutting, heating, or forming processes. The oxide layer affects subsequent processes.<\/p>","protected":false},"author":47,"featured_media":0,"parent":6087851,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-6087883","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.6.1 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Zunder in der Blechbearbeitung | Glossar<\/title>\n<meta name=\"description\" content=\"Erfahren Sie mehr \u00fcber Zunder Blechbearbeitung und wie oxidische Schichten die Oberfl\u00e4chenqualit\u00e4t beeinflussen.\" \/>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Zunder\" 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