{"id":3634,"date":"2021-06-16T15:51:50","date_gmt":"2021-06-16T13:51:50","guid":{"rendered":"https:\/\/www.acxys.com\/?page_id=3634"},"modified":"2021-06-22T15:46:20","modified_gmt":"2021-06-22T13:46:20","slug":"plasma-technology-surface-treatment","status":"publish","type":"page","link":"https:\/\/www.acxys.com\/zh-hans\/plasma-technology-surface-treatment\/","title":{"rendered":"Technologies Plasma – CN"},"content":{"rendered":"

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Le plasma, une technologie performante, \u00e9co-responsable et \u00e9conomique pour le traitement de surface<\/h1>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\"1_4,3_4\" _builder_version=\"3.26.7\" animation_style=\"slide\" animation_direction=\"left\" border_width_bottom=\"2px\" border_color_bottom=\"#2f68a3\"][et_pb_column type=\"1_4\" _builder_version=\"3.25\" custom_padding=\"|||\" custom_padding__hover=\"|||\"][et_pb_text _builder_version=\"4.9.2\" header_font=\"||||||||\" header_2_font=\"||||||||\" header_2_text_color=\"#499ef7\" custom_padding=\"|||15px\" border_color_right=\"#e18e55\" border_width_left=\"8px\" border_color_left=\"#e18e55\"]

Qu\u2019est-ce que le plasma ?<\/h2>[\/et_pb_text][\/et_pb_column][et_pb_column type=\"3_4\" _builder_version=\"3.25\" custom_padding=\"|||\" custom_padding__hover=\"|||\"][et_pb_text _builder_version=\"4.9.2\" hover_enabled=\"0\" sticky_enabled=\"0\"]

Le plasma est souvent appel\u00e9 \u00ab quatri\u00e8me \u00e9tat de mati\u00e8re<\/strong> \u00bb. Contrairement aux solides, aux liquides ou aux gaz qui existent tous de mani\u00e8re naturelle, l\u2019\u00e9tat plasma ne peut \u00eatre atteint qu\u2019\u00e0 partir d\u2019un gaz soumis \u00e0 un apport continu d\u2019\u00e9nergie.<\/p>\r\n

Par exemple, l\u2019\u00e9tat plasma peut \u00eatre cr\u00e9\u00e9 en pla\u00e7ant 2 \u00e9lectrodes dans du gaz et en maintenant entre elles une tension \u00e9lectrique pour produire une d\u00e9charge. Cela g\u00e9n\u00e8re alors un milieu ionis\u00e9, contenant de nombreuses esp\u00e8ces fortement r\u00e9actives telles que des ions (charg\u00e9s positivement ou n\u00e9gativement) et des mol\u00e9cules excit\u00e9es ou m\u00e9ta-stables.<\/p>\r\n

Ce sont les propri\u00e9t\u00e9s de ces esp\u00e8ces r\u00e9actives qui sont exploit\u00e9es en traitement de surface, en les faisant participer \u00e0 des r\u00e9actions chimiques tr\u00e8s rapides.<\/p>[\/et_pb_text][et_pb_image src=\"https:\/\/www.acxys.com\/wp-content\/uploads\/2019\/05\/technologie-plasma.jpg\" align=\"center\" align_tablet=\"center\" align_phone=\"\" align_last_edited=\"on|desktop\" _builder_version=\"3.23\"][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\"1_4,3_4\" _builder_version=\"3.25\" border_width_bottom=\"2px\" border_color_bottom=\"#2f68a3\"][et_pb_column type=\"1_4\" _builder_version=\"3.25\" custom_padding=\"|||\" custom_padding__hover=\"|||\"][et_pb_text _builder_version=\"3.27.4\" header_font=\"||||||||\" header_2_font=\"||||||||\" header_2_text_color=\"#499ef7\" custom_padding=\"|15px||\" border_width_right=\"8px\" border_color_right=\"#e18e55\"]

Plasma froid ou plasma thermique ?<\/h2>[\/et_pb_text][\/et_pb_column][et_pb_column type=\"3_4\" _builder_version=\"3.25\" custom_padding=\"|||\" custom_padding__hover=\"|||\"][et_pb_text _builder_version=\"3.27.4\"]

Selon la fa\u00e7on dont le plasma est produit et l\u2019utilisation envisag\u00e9e, la temp\u00e9rature du milieu gazeux peut rester faible, voisine de la temp\u00e9rature ambiante, ou s\u2019\u00e9lever consid\u00e9rablement pour atteindre des temp\u00e9ratures de plus de 1000\u00b0C. On parle alors de plasma froid ou de plasma thermique.<\/p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\"1_4,3_4\" _builder_version=\"3.25\" border_width_bottom=\"2px\" border_color_bottom=\"#2f68a3\"][et_pb_column type=\"1_4\" _builder_version=\"3.25\" custom_padding=\"|||\" custom_padding__hover=\"|||\"][et_pb_text _builder_version=\"3.27.4\" header_font=\"||||||||\" header_2_font=\"||||||||\" header_2_text_color=\"#499ef7\" custom_padding=\"|||15px\" border_color_right=\"#e18e55\" border_width_left=\"8px\" border_color_left=\"#e18e55\"]

Plasma \u00e0 pression atmosph\u00e9rique ou \u00e0 basse-pression ?<\/h2>[\/et_pb_text][\/et_pb_column][et_pb_column type=\"3_4\" _builder_version=\"3.25\" custom_padding=\"|||\" custom_padding__hover=\"|||\"][et_pb_text _builder_version=\"3.27.4\"]

Le plasma peut \u00eatre produit \u00e0 basse pression ou \u00e0 pression atmosph\u00e9rique.\r\nA basse pression, l\u2019\u00e9tat plasma est n\u00e9cessairement produit dans une chambre \u00e0 vide coupl\u00e9e \u00e0 un syst\u00e8me de pompage pour obtenir une pression inf\u00e9rieure \u00e0 la pression atmosph\u00e9rique. Cette configuration offre de grandes possibilit\u00e9s en traitement de surface mais la dur\u00e9e des temps de pompage est souvent un frein \u00e0 son exploitation industrielle.<\/p>\r\n

A la pression atmosph\u00e9rique, l\u2019\u00e9tat plasma est produit gr\u00e2ce \u00e0 des dispositifs mis au point sp\u00e9cifiquement pour fonctionner dans ces conditions. Cette configuration offre un double avantage \u00e9conomique : elle \u00e9vite les co\u00fbts d\u2019investissement d\u2019une chambre \u00e0 vide et du groupe de pompage et, en s\u2019int\u00e9grant directement sur des lignes de production op\u00e9rant en continu, elle permet une productivit\u00e9 \u00e9lev\u00e9e.<\/p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\"1_3,1_3,1_3\" _builder_version=\"3.25\"][et_pb_column type=\"1_3\" _builder_version=\"3.25\" custom_padding=\"|||\" custom_padding__hover=\"|||\"][et_pb_button button_url=\"?p=626\" button_text=\"Fonctionnement des plasmas d\u2019AcXys Technologies\" button_alignment=\"center\" _builder_version=\"3.21.1\" custom_button=\"on\" button_text_color=\"#ffffff\" button_bg_color=\"#2f68a3\" button_border_color=\"#2f68a3\" button_border_radius=\"0\" button_font=\"||||||||\" button_use_icon=\"off\" z_index_tablet=\"500\"][\/et_pb_button][\/et_pb_column][et_pb_column type=\"1_3\" _builder_version=\"3.25\" custom_padding=\"|||\" custom_padding__hover=\"|||\"][et_pb_button button_url=\"?p=628\" button_text=\" Les proc\u00e9d\u00e9s plasma et leurs applications\" button_alignment=\"center\" _builder_version=\"3.21.1\" custom_button=\"on\" button_text_color=\"#ffffff\" button_bg_color=\"#2f68a3\" button_border_color=\"#2f68a3\" button_border_radius=\"0\" button_font=\"||||||||\" button_use_icon=\"off\" z_index_tablet=\"500\"][\/et_pb_button][\/et_pb_column][et_pb_column type=\"1_3\" _builder_version=\"3.25\" custom_padding=\"|||\" custom_padding__hover=\"|||\"][et_pb_button button_url=\"?p=630\" button_text=\" Plasma versus autres technologies\" button_alignment=\"center\" _builder_version=\"3.21.1\" custom_button=\"on\" button_text_color=\"#ffffff\" button_bg_color=\"#2f68a3\" button_border_color=\"#2f68a3\" button_border_radius=\"0\" button_font=\"||||||||\" button_use_icon=\"off\" z_index_tablet=\"500\"][\/et_pb_button][\/et_pb_column][\/et_pb_row][\/et_pb_section]","_et_gb_content_width":"","footnotes":""},"class_list":["post-3634","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.acxys.com\/zh-hans\/wp-json\/wp\/v2\/pages\/3634","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.acxys.com\/zh-hans\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.acxys.com\/zh-hans\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.acxys.com\/zh-hans\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.acxys.com\/zh-hans\/wp-json\/wp\/v2\/comments?post=3634"}],"version-history":[{"count":5,"href":"https:\/\/www.acxys.com\/zh-hans\/wp-json\/wp\/v2\/pages\/3634\/revisions"}],"predecessor-version":[{"id":3803,"href":"https:\/\/www.acxys.com\/zh-hans\/wp-json\/wp\/v2\/pages\/3634\/revisions\/3803"}],"wp:attachment":[{"href":"https:\/\/www.acxys.com\/zh-hans\/wp-json\/wp\/v2\/media?parent=3634"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}