{"id":12230,"date":"2025-02-25T13:52:12","date_gmt":"2025-02-25T12:52:12","guid":{"rendered":"https:\/\/hef.group\/gas-nitrocarburizing-vs-clin-technologies\/"},"modified":"2025-03-03T11:23:00","modified_gmt":"2025-03-03T10:23:00","slug":"gas-nitrocarburizing-vs-clin-technologies","status":"publish","type":"post","link":"https:\/\/hef.group\/en\/gas-nitrocarburizing-vs-clin-technologies\/","title":{"rendered":"Gas Nitrocarburizing VS. CLIN Technologies"},"content":{"rendered":"
\n
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Processes comparison<\/h2>\n
\n

The main difference between both treatments is the physical medium used to allow nitriding: gaseous or liquid medium. Depending on the medium used, the process would be different, as synthesized in the following table: <\/p>\n

Their respective processing methods \u2013 being quite different \u2013 are responsible for the unique effects each have on treated part.
\nThe temperature homogeneity control is quite different between gas nitriding and CLIN\u2122 technologies. This is due to the difference of medium, rather than gas, CLIN\u2122 is based on liquid medium (molten salts). Liquid allows a better control of temperature homogeneity compared to gas. Also, liquid enable complex geometry treatment, as it spreads uniformly everywhere in the bath. <\/p>\n

This allows to have a better treatment homogeneity of the parts.<\/span><\/p>\n

Parts are in direct contact with liquid and therefore use conduction for heat transfer. Gas uses convection which is not as efficient.
\nThis efficiency is also bond with nitriding potential, directly linked to the chemical composition of the medium. Contrary to gas using Ammonia (NH3), CLIN\u2122 technologies use cyanates (CNO\u2013). These chemical compounds are more effective to create nitriding reactions, allowing fastest treatment times. <\/p>\n

Thus, the liquid medium of CLIN\u2122 offers the fastest and most uniform nitriding treatment.<\/p>\n <\/div>\n <\/div>\n\n\t

\n\t \t \t
\n\t \"\"\t <\/div>\n\t \t \n\t\t \t <\/div>\n <\/div>\n <\/div>\n<\/section>\n\n
<\/div>\n\n
<\/td>Gas nitriding<\/strong><\/td>CLIN\u2122 technologies<\/strong><\/td><\/tr>
Preparation<\/strong><\/td>Degreasing with organic solvent<\/td>Degreasing: water + alkaline soap<\/td><\/tr>
Application method<\/strong><\/td>Pressurized gas furnaces<\/td>Molten salt bath<\/td><\/tr>
Temperature range<\/strong><\/td>500 \u2013 740\u00b0C<\/td>500 \u2013 630\u00b0C<\/td><\/tr>
Thermal uniformity<\/strong><\/td>Env. \u00b1 15\u00b0C <\/td>Env. \u00b1 3\u00b0C <\/td><\/tr>
Heat transfer<\/strong><\/td>Convection<\/td>Conduction<\/td><\/tr>
Nitriding potential<\/strong><\/td>\"\"Medium<\/td>\"\"High<\/td><\/tr>
Treatment time<\/strong><\/td>6 hours \u2013 24 hours<\/td>1 hour \u2013 3 hours<\/td><\/tr>
Environment\/waste<\/strong><\/td>The exhaust gases are cracked\/burned\/released into the atmosphere.<\/td>Recycling of line waste into new consumables directly usable.<\/td><\/tr>
Toxicity classification<\/strong><\/td>Ammonia (anhydrous)\"\"<\/td>Cyanates and carbonates\"\"<\/td><\/tr><\/tbody><\/table><\/figure>\n
\n
\n
\n
\n

Advantages and limitations of CLIN\u2122 compared to gas<\/h2>\n
\n

Advantages:<\/strong><\/p>\n

    \n
  • Uniform compound layer thickness even on parts with complex geometry.<\/li>\n
  • Better dimensional control on the parts.<\/li>\n
  • Minimal to no-distortion on parts.<\/li>\n
  • Better adhesive wear resistance, due to post-nitriding enhanced oxidizing step.<\/li>\n
  • Better oil retention.<\/li>\n
  • Enhanced corrosion resistance.<\/li>\n<\/ul>\n

    Limitations:<\/strong><\/p>\n

      \n
    • Masking is most of the time not possible.<\/li>\n
    • Less deep nitrogen diffusion.<\/li>\n<\/ul>\n

       <\/p>\n

      From an economic perspective, both processes, gas or liquid, are competitive technology well known in various industries as construction, handling, automotive, energy, aeronautics and defence.<\/p>\n <\/div>\n <\/div>\n\n\t

      \n\t \t \t
      \n\t \"\"\t <\/div>\n\t \t \n\t\t \t <\/div>\n <\/div>\n <\/div>\n<\/section>\n
      \n
      \n
      \n
      \n

      Availability of CLIN\u2122 technologies <\/h2>\n
      \n

      CLIN\u2122 is globally available with TUFFTRIDE\u00ae, TENIFER\u00ae & QPQ\u00ae treatments licensed to subcontract heat treatment trade. ARCOR\u00ae and SURSULF\u00ae are version of CLIN\u2122 commercially available throughout our global TS network. <\/p>\n

      Regarding environment and wastes, ECO-CLIN\u2122 innovation process is allowing a circular model by recycling, into new consumables directly usable on CLIN\u2122 line. As a first step, most of Europe lines\u2019 wastes are recycled by this time; the ambition of the group is to achieve zero final waste within its worldwide network. <\/p>\n <\/div>\n <\/div>\n\n\t

      \n\t \t \t
      \n\t \"Bain\t <\/div>\n\t \t \n\t\t \t <\/div>\n <\/div>\n <\/div>\n<\/section>\n","protected":false},"excerpt":{"rendered":"

      Nitrocarburizing is the most common thermochemical treatment, consisting in enrichment of the surface of ferrous materials with Nitrogen and a small amount of Carbon.
      \nThis treatment is used to improve the tribological characteristics of the treated parts:
      \n\u2022 corrosion protection
      \n\u2022 resistance to abrasive wear
      \n\u2022 resistance to seizure (adhesion)
      \n\u2022 friction behavior.
      \nThere are a few methods of preforming Nitrocarburizing, depending on medium, each with unique advantages. This article will compare the main two industrialized processes of Gas nitriding and CLIN\u2122 technologies. <\/p>\n","protected":false},"author":1,"featured_media":12128,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[359],"tags":[336],"class_list":["post-12230","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-scientific-dossiers","tag-innovation"],"acf":[],"yoast_head":"\nCLIN\u2122 vs. Gas Nitriding: Effectiveness and Innovation<\/title>\n<meta name=\"description\" content=\"Compare gas nitriding and CLIN\u2122 technologies in terms of effectiveness, speed, and environmental impact.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hef.group\/en\/gas-nitrocarburizing-vs-clin-technologies\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CLIN\u2122 vs. Gas Nitriding: Effectiveness and Innovation\" \/>\n<meta property=\"og:description\" content=\"Compare gas nitriding and CLIN\u2122 technologies in terms of effectiveness, speed, and environmental impact.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/hef.group\/en\/gas-nitrocarburizing-vs-clin-technologies\/\" \/>\n<meta property=\"og:site_name\" content=\"HEF\" \/>\n<meta property=\"article:published_time\" content=\"2025-02-25T12:52:12+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-03-03T10:23:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/hef.group\/wp-content\/uploads\/2025\/02\/Nitrocarburizing-Image.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"600\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"axome\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"axome\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/hef.group\/en\/gas-nitrocarburizing-vs-clin-technologies\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/hef.group\/en\/gas-nitrocarburizing-vs-clin-technologies\/\"},\"author\":{\"name\":\"axome\",\"@id\":\"https:\/\/hef.group\/en\/#\/schema\/person\/2c86c03f93383afa4bd7da499db5e6c9\"},\"headline\":\"Gas Nitrocarburizing VS. 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