{"id":161,"date":"2023-01-21T13:18:45","date_gmt":"2023-01-21T12:18:45","guid":{"rendered":"http:\/\/haertha.dev.neuekommunikation.de\/wordpress\/?post_type=verfahren&#038;p=161"},"modified":"2025-03-26T10:07:23","modified_gmt":"2025-03-26T09:07:23","slug":"low-pressure-carburising-lpc","status":"publish","type":"verfahren","link":"https:\/\/haertha.de\/en\/process\/low-pressure-carburising-lpc\/","title":{"rendered":"Low pressure carburising (LPC)"},"content":{"rendered":"<section id=\"popup-verfahren-header-block_2e33ac4b613f3d85b7ba734a95fca90a\" class=\"popup popup-video\"><div class=\"popup__content\"><div class=\"close\"><span><\/span><span><\/span><\/div><div class=\"embed-container\"><iframe loading=\"lazy\" title=\"VERFAHREN_LPC_EN\" src=\"https:\/\/player.vimeo.com\/video\/836564973?h=b1c0454dea&amp;dnt=1&amp;app_id=122963&#038;muted=0&#038;controls=1&#038;hd=1&#038;loop=1&#038;autohide=1&#038;autoplay=0&#038;dnt=1\" width=\"640\" height=\"300\" frameborder=\"0\" allow=\"autoplay; fullscreen; picture-in-picture; clipboard-write; encrypted-media; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" class=\"video-play\"><\/iframe><\/div><\/div><\/section>\r\n\r\n<div id=\"verfahren-header-block_2e33ac4b613f3d85b7ba734a95fca90a\" class=\"verfahren-header-video\" >   \r\n\r\n    <div class=\"embed-container popup-vimeo\">\r\n        <iframe loading=\"lazy\" title=\"LOOP_LPC\" src=\"https:\/\/player.vimeo.com\/video\/813128501?h=9008d8b3cd&amp;dnt=1&amp;app_id=122963&#038;controls=0&#038;hd=1&#038;loop=1&#038;autohide=0&#038;dnt=1&#038;autoplay=1&#038;muted=1\" width=\"640\" height=\"300\" frameborder=\"0\" allow=\"autoplay; fullscreen; picture-in-picture; clipboard-write; encrypted-media; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\"><\/iframe>    <\/div>  \r\n    \r\n    <div class=\"video-button popup-button\" data-number=\"verfahren-header-block_2e33ac4b613f3d85b7ba734a95fca90a\"><a href=\"javascript:void(0);\" class=\"popup-button btn-video btn-cta\" data-number=\"verfahren-header-block_2e33ac4b613f3d85b7ba734a95fca90a\"><div class=\"btn-open-video\"><span class=\"btn-decor-left\"><\/span><span class=\"text\"> Show film<\/span><span class=\"btn-decor-right\"><\/span><\/div><\/a><\/div>\r\n<\/div>\r\n\n\n\r\n<div id=\"verfahren-text-block_e7469ebf11e880cef487bf807811a74e\" class=\"verfahren-text toc\" data-toctitle=\"Das Verfahren und seine Vorteile\" style=\"\">\r\n    <div class=\"row\">\r\n        <div class=\"col-12\">\r\n            <div class=\"content-wrapper\" >\r\n\r\n                            <div class=\"box\">\r\n                                            <div class=\"nummber\"> \r\n                            \r\n                        <\/div>\r\n                        \r\n                                            <h2 class=\"headline\">The process and its advantages<\/h2>\r\n                                \r\n                <\/div>\r\n            \r\n                <div class=\"content-box texteditor\" style=\"\">                    \r\n                    <p><p class=\" translation-block\">Low pressure carburising (LPC) is an alternative to  <a href=\"https:\/\/haertha.de\/en\/verfahren\/schutzgashaerten\/\" target=\"_self\">case hardening under protective gas<\/a>. The steel is heated in a carburising atmosphere to a temperature between 900 \u00b0C and 1,000 \u00b0C. This leads to an enrichment of the edge layer with carbon.\nThis enrichment increases the hardness of the component surface, while keeping the core malleable. This is usually followed by processes for hardening and tempering.<\/p>\n<p>The combination of the acetylene carrier gas and the vacuum furnace makes low pressure carburising emission-free in terms of CO2, and thus counts as environmentally friendly.<br>\n<br><\/p>\n<h3><\/h3>\n<p>&nbsp;<\/p>\n<h3>The advantages at a glance<\/h3>\n<ul>\n<li class=\" translation-block\"><b><strong>Uniform case hardening depths<\/strong><\/b> even on components with complex geometries, holes, and blind holes<\/li>\n<li>No intergranular oxidation layer thanks to <strong>dry quenching<\/strong><\/li>\n<li class=\" translation-block\">As the <b>component surface is exceptionally clean<\/b>, there is usually no need for subsequent grinding<\/li>\n<li class=\" translation-block\"><b><strong>Increased hardness under the surface<\/strong><\/b> and faster than alternative carburising methods<\/li>\n<li>Enhanced fatigue properties<\/li>\n<li><strong>Little warping<\/strong><\/li>\n<li>Environmentally friendly (no CO2 emission)<\/li>\n<li>The hardness and case hardening depth can be regulated with precision<\/li>\n<\/ul>\n<\/p>\r\n                    <div class=\"acf-innerblocks-container\"><\/div>\r\n                    \r\n                    <style>\r\n                        .sonder-zeichen{\r\n                            display: flex;\r\n                            flex-direction: row;\r\n                            gap: 15px;\r\n                        }\r\n                        .zeichen{\r\n                            color: #C9C9C9;\r\n                            position: relative;\r\n                            line-height: 66px;\r\n                            font-size: clamp(2.75rem, 1.9766rem + 2.1484vw, 4.125rem);\r\n                        }\r\n                    <\/style>\r\n                    \r\n                <\/div>\r\n            <\/div>\r\n        <\/div>\r\n    <\/div>\r\n<\/div>\r\n\r\n\r\n\r\n\r\n\n\n\r\n<div id=\"verfahren-text-block_e5ac25c045fcf2af9d7f4effd742441a\" class=\"verfahren-text toc\" data-toctitle=\"Anwendungsbereiche\" style=\"\">\r\n    <div class=\"row\">\r\n        <div class=\"col-12\">\r\n            <div class=\"content-wrapper\" >\r\n\r\n                            <div class=\"box\">\r\n                                            <div class=\"nummber\"> \r\n                            \r\n                        <\/div>\r\n                        \r\n                                            <h2 class=\"headline\">the process and its advantages<\/h2>\r\n                                \r\n                <\/div>\r\n            \r\n                <div class=\"content-box texteditor\" style=\"\">                    \r\n                    <p><p class=\" translation-block\">Low pressure carburising is of particular interest for components where an <strong>exceedingly uniform surface is of great importance.<\/strong> Because this process ensures an exceptionally uniform carburising layer, it is the preferred option for oil pump gears and transmission gearing. However, it is also used for nozzles, injection valves, and axles.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-1653\" src=\"https:\/\/haertha.de\/wp-content\/uploads\/2023\/01\/P1007549-1024x682.png\" alt=\"\" width=\"1024\" height=\"682\" srcset=\"https:\/\/haertha.de\/wp-content\/uploads\/2023\/01\/P1007549-1024x682.png 1024w, https:\/\/haertha.de\/wp-content\/uploads\/2023\/01\/P1007549-300x200.png 300w, https:\/\/haertha.de\/wp-content\/uploads\/2023\/01\/P1007549-768x512.png 768w, https:\/\/haertha.de\/wp-content\/uploads\/2023\/01\/P1007549-1536x1024.png 1536w, https:\/\/haertha.de\/wp-content\/uploads\/2023\/01\/P1007549-1106x737.png 1106w, https:\/\/haertha.de\/wp-content\/uploads\/2023\/01\/P1007549.png 2000w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<\/p>\r\n                    <div class=\"acf-innerblocks-container\"><\/div>\r\n                    \r\n                    <style>\r\n                        .sonder-zeichen{\r\n                            display: flex;\r\n                            flex-direction: row;\r\n                            gap: 15px;\r\n                        }\r\n                        .zeichen{\r\n                            color: #C9C9C9;\r\n                            position: relative;\r\n                            line-height: 66px;\r\n                            font-size: clamp(2.75rem, 1.9766rem + 2.1484vw, 4.125rem);\r\n                        }\r\n                    <\/style>\r\n                    \r\n                <\/div>\r\n            <\/div>\r\n        <\/div>\r\n    <\/div>\r\n<\/div>\r\n\r\n\r\n\r\n\r\n\n\n\r\n<div id=\"verfahren-text-block_28eb55658a855db9f7868489aefe0885\" class=\"verfahren-text toc\" data-toctitle=\"Geeignete Werkstoffe\" style=\"\">\r\n    <div class=\"row\">\r\n        <div class=\"col-12\">\r\n            <div class=\"content-wrapper\" >\r\n\r\n                            <div class=\"box\">\r\n                                            <div class=\"nummber\"> \r\n                            \r\n                        <\/div>\r\n                        \r\n                                            <h2 class=\"headline\">Suitable materials<\/h2>\r\n                                \r\n                <\/div>\r\n            \r\n                <div class=\"content-box texteditor\" style=\"\">                    \r\n                    <p><p>Below is a brief overview of some types of material that are particularly well suited for low pressure carburising.<\/p>\n<\/p>\r\n                    <div class=\"acf-innerblocks-container\"><\/div>\r\n                    \r\n                    <style>\r\n                        .sonder-zeichen{\r\n                            display: flex;\r\n                            flex-direction: row;\r\n                            gap: 15px;\r\n                        }\r\n                        .zeichen{\r\n                            color: #C9C9C9;\r\n                            position: relative;\r\n                            line-height: 66px;\r\n                            font-size: clamp(2.75rem, 1.9766rem + 2.1484vw, 4.125rem);\r\n                        }\r\n                    <\/style>\r\n                    \r\n                <\/div>\r\n            <\/div>\r\n        <\/div>\r\n    <\/div>\r\n<\/div>\r\n\r\n\r\n\r\n\r\n\n\n\r\n<div id=\"verfahren-text-block_c83fc82b48808d1385aa5d0f93513218\" class=\"verfahren-text toc\" data-toctitle=\"Ofenkammer bei H\u00e4rtha\" style=\"\">\r\n    <div class=\"row\">\r\n        <div class=\"col-12\">\r\n            <div class=\"content-wrapper\" >\r\n\r\n                            <div class=\"box\">\r\n                                            <div class=\"nummber\"> \r\n                            \r\n                        <\/div>\r\n                        \r\n                                            <h2 class=\"headline\">Furnace chamber at H\u00e4rtha<\/h2>\r\n                                \r\n                <\/div>\r\n            \r\n                <div class=\"content-box texteditor\" style=\"\">                    \r\n                    <p><p><b>Maximum batch size:<\/b><\/p>\n<p>900 mm x 600 mm x 800 mm<\/p>\n<p><b>Maximum batch weight:<\/b><\/p>\n<p>600 kg<\/p>\n<p><b>Operating temperature:<\/b><\/p>\n<p>500 \u2013 1,250 degrees<\/p>\n<p><b>Initial cooling pressure:<\/b><\/p>\n<p>1 - 20 bar<\/p>\n<p>Nitrogen or helium<\/p>\n<\/p>\r\n                    <div class=\"acf-innerblocks-container\"><\/div>\r\n                    \r\n                    <style>\r\n                        .sonder-zeichen{\r\n                            display: flex;\r\n                            flex-direction: row;\r\n                            gap: 15px;\r\n                        }\r\n                        .zeichen{\r\n                            color: #C9C9C9;\r\n                            position: relative;\r\n                            line-height: 66px;\r\n                            font-size: clamp(2.75rem, 1.9766rem + 2.1484vw, 4.125rem);\r\n                        }\r\n                    <\/style>\r\n                    \r\n                <\/div>\r\n            <\/div>\r\n        <\/div>\r\n    <\/div>\r\n<\/div>\r\n\r\n\r\n\r\n\r\n\n\n\r\n<div id=\"verfahren-text-block_1430af7f97090f3dae3b5ab1a9579d8e\" class=\"verfahren-text toc\" data-toctitle=\"Kundenangaben zur W\u00e4rmebehandlung\" style=\"\">\r\n    <div class=\"row\">\r\n        <div class=\"col-12\">\r\n            <div class=\"content-wrapper\" >\r\n\r\n                            <div class=\"box\">\r\n                                            <div class=\"nummber\"> \r\n                            \r\n                        <\/div>\r\n                        \r\n                                            <h2 class=\"headline\">Customer specifications for the heat treatment<\/h2>\r\n                                \r\n                <\/div>\r\n            \r\n                <div class=\"content-box texteditor\" style=\"\">                    \r\n                    <p><p>If you would like us to perform low pressure carburising (LPC) for you, the information which we require includes:<\/p>\n<ul>\n<li>Material designation<\/li>\n<li>Case hardening depth<\/li>\n<li>Nominal values for edge hardness<\/li>\n<\/ul>\n<p>For all other information which we require, please refer to the ordering form, which we will be happy to provide upon request.<\/p>\n<\/p>\r\n                    <div class=\"acf-innerblocks-container\">\n\n<p><\/p>\n\n<\/div>\r\n                    \r\n                    <style>\r\n                        .sonder-zeichen{\r\n                            display: flex;\r\n                            flex-direction: row;\r\n                            gap: 15px;\r\n                        }\r\n                        .zeichen{\r\n                            color: #C9C9C9;\r\n                            position: relative;\r\n                            line-height: 66px;\r\n                            font-size: clamp(2.75rem, 1.9766rem + 2.1484vw, 4.125rem);\r\n                        }\r\n                    <\/style>\r\n                    \r\n                <\/div>\r\n            <\/div>\r\n        <\/div>\r\n    <\/div>\r\n<\/div>\r\n\r\n\r\n\r\n\r\n\n\n\r\n<div id=\"verfahren-text-block_dd9aa04898a3350077b6575c7b7c30c7\" class=\"verfahren-text toc\" data-toctitle=\"Verfahrensstandorte\" style=\"\">\r\n    <div class=\"row\">\r\n        <div class=\"col-12\">\r\n            <div class=\"content-wrapper\" >\r\n\r\n                            <div class=\"box\">\r\n                                            <div class=\"nummber\"> \r\n                            \r\n                        <\/div>\r\n                        \r\n                                            <h2 class=\"headline\">Process locations<\/h2>\r\n                                \r\n                <\/div>\r\n            \r\n                <div class=\"content-box texteditor\" style=\"\">                    \r\n                    <p><p class=\" translation-block\">H\u00e4rtha operates with various locations across Europe. Refer to our <a href=\"https:\/\/haertha.de\/en\/standorte\/\" target=\"_self\">location overview <\/a>to learn which processes we offer at which location.<\/p>\n<\/p>\r\n                    <div class=\"acf-innerblocks-container\"><\/div>\r\n                    \r\n                    <style>\r\n                        .sonder-zeichen{\r\n                            display: flex;\r\n                            flex-direction: row;\r\n                            gap: 15px;\r\n                        }\r\n                        .zeichen{\r\n                            color: #C9C9C9;\r\n                            position: relative;\r\n                            line-height: 66px;\r\n                            font-size: clamp(2.75rem, 1.9766rem + 2.1484vw, 4.125rem);\r\n                        }\r\n                    <\/style>\r\n                    \r\n                <\/div>\r\n            <\/div>\r\n        <\/div>\r\n    <\/div>\r\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Niederdruckaufkohlen bezeichnet ein thermochemisches Verfahren zum Einsatzh\u00e4rten<br \/>\nvon Stahl. Synonym werden der Begriff Vakuumaufkohlen und die englische Abk\u00fcrzung<br \/>\nLPC (Low Pressure Carburizing) verwendet. Das Bauteil wird bei sehr geringem Druck und<br \/>\nunter Zufuhr von Kohlenwasserstoff in einem Vakuumofen erhitzt. Ziel sind eine h\u00f6here<br \/>\nVerschlei\u00dffestigkeit und eine l\u00e4ngere Lebensdauer. Das wird durch die H\u00e4rtung der<br \/>\nRandschicht bei gleichzeitigem Erhalt des weichen (z\u00e4hen) Kerns erm\u00f6glicht.<\/p>\n<p>Inhaltsverzeichnis einbauen<br \/>\nVertrauen Sie auf unsere Erfahrung bei H\u00e4rtha und profitieren Sie von unseren hohen<br \/>\nKapazit\u00e4ten. Dank schneller Durchlaufzeiten k\u00f6nnen wir auch kurzfristige Auftr\u00e4ge in<br \/>\ngarantiert hoher Qualit\u00e4t umsetzen. Wir freuen uns auf Ihre Anfrage.<\/p>","protected":false},"author":9,"featured_media":5733,"menu_order":300,"template":"","verfahrenstechnik":[8],"class_list":["post-161","verfahren","type-verfahren","status-publish","has-post-thumbnail","hentry","verfahrenstechnik-randschichthaerten"],"acf":{"text_cta":"Niederdruckaufkohlen bezeichnet ein <b>thermochemisches Verfahren zum Einsatzh\u00e4rten von Stahl.<\/b> Synonym werden der Begriff Vakuumaufkohlen und die englische Abk\u00fcrzung LPC (Low Pressure Carburizing) verwendet. Das Bauteil wird bei sehr geringem Druck und unter Zufuhr von Kohlenwasserstoff in einem Vakuumofen erhitzt. Ziel sind eine h\u00f6here Verschlei\u00dffestigkeit und eine l\u00e4ngere Lebensdauer. Das wird durch die H\u00e4rtung der Randschicht bei gleichzeitigem Erhalt des weichen Kerns erm\u00f6glicht.\r\n\r\n\r\nVertrauen Sie auf unsere Erfahrung bei H\u00e4rtha und profitieren Sie von unseren hohen Kapazit\u00e4ten. Dank schneller Durchlaufzeiten k\u00f6nnen wir auch kurzfristige Auftr\u00e4ge in garantiert hoher Qualit\u00e4t umsetzen. Wir freuen uns auf Ihre Anfrage.","contact_location":[252,256],"materials":"on","tablepress":[{"tabellen_name_":"NIEDERDRUCKAUFKOHLEN","tabelpress_shortcode":"[table id=57 \/]"}]},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Niederdruckaufkohlen (LPC) | H\u00c4RTHA GROUP<\/title>\n<meta name=\"description\" content=\"Was versteht man unter Niederdruckaufkohlen? \u2713 Verfahren und Vorteile \u2713 Anwendungsbereiche und geeignete Werkstoffe.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/haertha.de\/en\/process\/low-pressure-carburising-lpc\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Niederdruckaufkohlen (LPC) | H\u00c4RTHA GROUP\" \/>\n<meta property=\"og:description\" content=\"Was versteht man unter Niederdruckaufkohlen? 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