{"id":10499,"date":"2021-05-19T14:39:35","date_gmt":"2021-05-19T12:39:35","guid":{"rendered":"https:\/\/priatherm.com\/custom-extruded-heatsink-in-natural-convection-for-washing-machines\/"},"modified":"2023-02-14T09:52:47","modified_gmt":"2023-02-14T08:52:47","slug":"custom-extruded-heatsink-in-natural-convection-for-washing-machines","status":"publish","type":"post","link":"https:\/\/priatherm.com\/it\/custom-extruded-heatsink-in-natural-convection-for-washing-machines\/","title":{"rendered":"Custom extruded heatsink in natural convection for washing machines"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;section&#8221; _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_row admin_label=&#8221;row&#8221; _builder_version=&#8221;4.19.0&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_text admin_label=&#8221;Text&#8221; module_class=&#8221;white-links&#8221; _builder_version=&#8221;4.19.0&#8243; text_text_color=&#8221;#FFFFFF&#8221; background_color=&#8221;#f29400&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; custom_padding=&#8221;30px|30px|30px|30px|true|true&#8221; border_radii=&#8221;on|7px|7px|7px|7px&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;]<\/p>\n<p><strong><a href=\"#introduction\">Introduction<\/a><\/strong><\/p>\n<p><strong><a href=\"#application-field\">Application field<\/a><\/strong><\/p>\n<p><strong><a href=\"#the-challenge\">The challenge<\/a><\/strong><\/p>\n<p><strong><a href=\"#solution\">Solution<\/a><\/strong><\/p>\n<p><strong><a href=\"#top-challenges\">Top Challenges<\/a><\/strong><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;section&#8221; module_id=&#8221;introduction&#8221; _builder_version=&#8221;4.19.0&#8243; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_row admin_label=&#8221;row&#8221; _builder_version=&#8221;4.19.0&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_text admin_label=&#8221;Text&#8221; _builder_version=&#8221;4.19.4&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;]<\/p>\n<h2 class=\"vc_custom_heading\">Introduction<span data-preserver-spaces=\"true\"><\/span><\/h2>\n<p>Our<span>\u00a0<\/span><strong>daily life<\/strong><span>\u00a0<\/span>gets more and more<span>\u00a0<\/span><strong>simplified by smart systems<\/strong><span>\u00a0<\/span>in our houses and<span>\u00a0<\/span><strong>advanced technology<\/strong><span>\u00a0<\/span>domestic appliances.<\/p>\n<p>Issues such as energy-saving, low polluting impact, flexibility in programming its use, require an<span>\u00a0<\/span><strong>electronic \u201cbrain\u201d<\/strong><span>\u00a0<\/span>in our domestic appliances, which transforms our desires into machine commands.<\/p>\n<p><strong>Washing machines<\/strong>, both at the domestic level and, even more importantly, in the industrial sector,<span>\u00a0<\/span><strong>contain a PC Board<\/strong><span>\u00a0<\/span>with devices able<span>\u00a0<\/span><strong>to variate temperature<\/strong>,<span>\u00a0<\/span><strong>speed of the motor<\/strong>,<span>\u00a0<\/span><strong>quantity of detergent<\/strong>,<span>\u00a0<\/span><strong>cycle duration<\/strong>, etc.<\/p>\n<p>The<span>\u00a0<\/span><a href=\"https:\/\/priatherm.com\/it\/design-your-heat-sink-to-operate-with-natural-convection-in-two-easy-steps\/\">heat sink design<\/a><span>\u00a0<\/span>and the<span>\u00a0<\/span><strong>metal container<\/strong><span>\u00a0<\/span>of the electronic part cannot be left to chance and<span>\u00a0<\/span><strong>requires the activity of co-design<\/strong><span>\u00a0<\/span>with<span>\u00a0<\/span><strong>thermal management experts<\/strong>.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.19.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.19.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_image src=&#8221;https:\/\/priatherm.com\/wp-content\/uploads\/2021\/05\/Washing-Machine-Case-Study-s.jpg&#8221; title_text=&#8221;Washing-Machine-Case-Study-s&#8221; align=&#8221;center&#8221; _builder_version=&#8221;4.19.4&#8243; _module_preset=&#8221;default&#8221; border_radii=&#8221;on|7px|7px|7px|7px&#8221; box_shadow_style=&#8221;preset3&#8243; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][\/et_pb_image][et_pb_text _builder_version=&#8221;4.19.4&#8243; _module_preset=&#8221;default&#8221; text_font_size=&#8221;14px&#8221; text_line_height=&#8221;1.4em&#8221; text_orientation=&#8221;center&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;]<\/p>\n<p><span>Industrial washing machines have an electronic \u201cbrain\u201d to optimize performances and reduce consumption<\/span><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;section&#8221; module_id=&#8221;application-field&#8221; _builder_version=&#8221;4.19.0&#8243; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_row admin_label=&#8221;row&#8221; _builder_version=&#8221;4.19.0&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_text admin_label=&#8221;Text&#8221; _builder_version=&#8221;4.19.4&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;]<\/p>\n<h2 class=\"vc_custom_heading\">Application field<\/h2>\n<p>Our customer is a<span>\u00a0<\/span><strong>worldwide leader<\/strong><span>\u00a0<\/span>in the<span>\u00a0<\/span><strong>manufacturing<\/strong><span>\u00a0<\/span>and sales of<span>\u00a0<\/span><strong>industrial and domestic appliances<\/strong>. They develop several projects and subassemblies in different countries around the globe, using local expertise and technology.<\/p>\n<p>In the specific case of industrial washing machines, there are<span>\u00a0<\/span><strong>different teams<\/strong>, coordinated at a central level,<span>\u00a0<\/span><strong>that develop a new product<\/strong><span>\u00a0<\/span>from scratch to the final design.<\/p>\n<ul>\n<li><strong><em>Mechanical engineers<\/em><\/strong><span>\u00a0<\/span>must study the<span>\u00a0<\/span><strong>metal structure<\/strong><span>\u00a0<\/span>and the<span>\u00a0<\/span><strong>engine<\/strong>, in cooperation with electrical engineers. Designers must<span>\u00a0<\/span><strong>create the external \u201cenvelop\u201d<\/strong><span>\u00a0<\/span>to satisfy certain aesthetical criteria, but think about the interface between the machine and the user, who must find it easy and friendly.<\/li>\n<li><strong><em>Electronic engineers<\/em><\/strong><span>\u00a0<\/span>develop the main<span>\u00a0<\/span><strong>PC Board<\/strong>, where many components in the circuit take control of the machine.<\/li>\n<\/ul>\n<p>They<span>\u00a0<\/span><strong>ask thermal experts to co-design the heatsink<\/strong><span>\u00a0<\/span>that will<span>\u00a0<\/span><strong>remove the heat in excess<\/strong><span>\u00a0<\/span>from the core of the board to the outside. The heatsink<span>\u00a0<\/span><strong>must be cheap<span>\u00a0<\/span><\/strong>because\u00a0the White Market has medium-high volume and big competition on prices.<\/p>\n<p>A well-designed heatsink is<span>\u00a0<\/span><strong>not only used for cooling<\/strong>, it is used as<span>\u00a0<\/span><strong>mechanical support<\/strong><span>\u00a0<\/span>for the main box containing the electronic part, too.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;section&#8221; module_id=&#8221;the-challenge&#8221; _builder_version=&#8221;4.19.0&#8243; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_row admin_label=&#8221;row&#8221; _builder_version=&#8221;4.19.0&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_text admin_label=&#8221;Text&#8221; _builder_version=&#8221;4.19.4&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;]<\/p>\n<h2 class=\"vc_custom_heading\">The challenge<\/h2>\n<p>The<span>\u00a0<\/span><strong>difficulty<\/strong><span>\u00a0<\/span>of this project was related to<span>\u00a0<\/span><strong>mechanical<\/strong><span>\u00a0<\/span>more than<span>\u00a0<\/span><strong>thermal design<\/strong>. The customer needed a<span>\u00a0<\/span><strong>U-shaped extruded section<\/strong>, with:<\/p>\n<ul>\n<li>Fins on the sides to cool the heat<\/li>\n<li>Grooves in the open-top part and channels on the edges, to screw a metal cover<\/li>\n<li>Slots on the two lateral sides, to be able to place the PCB<\/li>\n<li>PT Click fins, to assembly TO220 components with stainless steel clips<\/li>\n<\/ul>\n<p>The<span>\u00a0<\/span><strong>extruded heatsink<\/strong>, together with its main function of cooler, had to be<span>\u00a0<\/span><strong>developed<\/strong><span>\u00a0<\/span>in a way<span>\u00a0<\/span><strong>to create several supports<\/strong><span>\u00a0<\/span>to the mechanical assembly.<\/p>\n<p>The<span>\u00a0<\/span><strong>challenge<\/strong><span>\u00a0<\/span>was to<span>\u00a0<\/span><strong>design the section<\/strong><span>\u00a0<\/span>wished by the customer<span>\u00a0<\/span><strong>respecting<\/strong><span>\u00a0<\/span>the<span>\u00a0<\/span><strong>feasibility rules for geometry<\/strong><span>\u00a0<\/span>(150 x 250 mm) and<span>\u00a0<\/span><strong>dimensional tolerances<\/strong><span>\u00a0<\/span>(\u00b1 1,25 mm), coming from the Extruders world.<\/p>\n<p>A U-shaped extrusion, for example, tends to be deformed on top, making it difficult to respect a fixed distance between the two sides, where we wanted to insert the PCB without any risk.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;section&#8221; module_id=&#8221;solution&#8221; _builder_version=&#8221;4.19.0&#8243; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_row admin_label=&#8221;row&#8221; _builder_version=&#8221;4.19.0&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_text admin_label=&#8221;Text&#8221; _builder_version=&#8221;4.19.4&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;]<\/p>\n<h2 class=\"vc_custom_heading\">Solution<\/h2>\n<p>The Priatherm team collected all the input data from the customer,<span>\u00a0<\/span><strong>asking several questions<\/strong><span>\u00a0<\/span>related to:<\/p>\n<ul>\n<li>the application<\/li>\n<li>the environmental<\/li>\n<li>the boundary conditions (the better the problem is known, the more accurate will the solution be)<\/li>\n<\/ul>\n<p>After they selected the<span>\u00a0<\/span><strong>extrusion technology of aluminum alloy<\/strong><span>\u00a0<\/span>(EN AW 6060 T5) as the most suitable<span>\u00a0<\/span><a href=\"https:\/\/priatherm.com\/it\/technologies-for-heat-sink-manufacturing\/\">heatsink manufacturing process<\/a><span>\u00a0<\/span>for this case, the engineers chose the best supplier for this extrusion tool.<\/p>\n<p>It was evident that the<span>\u00a0<\/span><strong>main issue was to put all the mechanical requirements together<\/strong><span>\u00a0<\/span>in the same section, with complex geometry and demanding tolerances.<\/p>\n<p>The<span>\u00a0<\/span><strong>co-design with experts of the extrusion process<\/strong><span>\u00a0<\/span>was key, to be added to Priatherm\u2019s experience in cooling and the<span>\u00a0<\/span><a href=\"https:\/\/priatherm.com\/it\/heat-sink-with-clips-simple-element-many-advantages\/\">PT Click fixing system<\/a>.<\/p>\n<p>The idea to<span>\u00a0<\/span><strong>integrate fixing points<\/strong><span>\u00a0<\/span>for screws and<span>\u00a0<\/span><strong>PT Click fins<\/strong><span>\u00a0<\/span>for the clips\u2019 assembly proved to be a<span>\u00a0<\/span><strong>smart solution<\/strong><span>\u00a0<\/span>to avoid further machining on the heatsink with an obvious<span>\u00a0<\/span><strong>save of manufacturing costs<\/strong>!<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.19.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.19.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_image src=&#8221;https:\/\/priatherm.com\/wp-content\/uploads\/2021\/05\/Heat-Sink-Washing-Machine.jpg&#8221; title_text=&#8221;Heat-Sink-Washing-Machine&#8221; align=&#8221;center&#8221; _builder_version=&#8221;4.19.5&#8243; _module_preset=&#8221;default&#8221; hover_enabled=&#8221;0&#8243; border_radii=&#8221;on|7px|7px|7px|7px&#8221; box_shadow_style=&#8221;preset3&#8243; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; show_bottom_space=&#8221;off&#8221; sticky_enabled=&#8221;0&#8243;][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;section&#8221; module_id=&#8221;top-challenges&#8221; _builder_version=&#8221;4.19.0&#8243; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_row admin_label=&#8221;row&#8221; _builder_version=&#8221;4.19.0&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_text admin_label=&#8221;Text&#8221; _builder_version=&#8221;4.19.4&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;]<\/p>\n<h2>Top challenges<\/h2>\n<ul>\n<li>Keep<span>\u00a0<\/span><strong>costs at the minimum<\/strong><\/li>\n<li><strong>Integrate several mounting features<\/strong><span>\u00a0<\/span>into the cooling solution<\/li>\n<li><strong>Achieve and guarantee<\/strong><span>\u00a0<\/span>in time<span>\u00a0<\/span><strong>tight geometrical tolerances<\/strong><\/li>\n<\/ul>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.19.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.19.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_text _builder_version=&#8221;4.19.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;]<\/p>\n<h2>Ask our Experts<\/h2>\n<p>[\/et_pb_text][dsm_contact_form_7 cf7_library=&#8221;3078&#8243; input_background_color=&#8221;#f7f7f7&#8243; _builder_version=&#8221;4.19.4&#8243; _module_preset=&#8221;default&#8221; input_textarea_select_text_color=&#8221;#333333&#8243; border_radii_image=&#8221;on|7px|7px|7px|7px&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][\/dsm_contact_form_7][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Introduction Application field The challenge Solution Top ChallengesIntroduction Our\u00a0daily life\u00a0gets more and more\u00a0simplified by smart systems\u00a0in our houses and\u00a0advanced technology\u00a0domestic appliances. Issues such as energy-saving, low polluting impact, flexibility in programming its use, require an\u00a0electronic \u201cbrain\u201d\u00a0in our domestic appliances, which transforms our desires into machine commands. Washing machines, both at the domestic level and, even more importantly, in the industrial sector,\u00a0contain a PC Board\u00a0with devices able\u00a0to variate temperature,\u00a0speed of the motor,\u00a0quantity of detergent,\u00a0cycle duration, etc. The\u00a0heat sink design\u00a0and the\u00a0metal container\u00a0of the electronic part cannot be left to chance and\u00a0requires the activity of co-design\u00a0with\u00a0thermal management experts.Industrial washing machines have an electronic \u201cbrain\u201d to optimize performances and reduce consumptionApplication field Our customer is a\u00a0worldwide leader\u00a0in the\u00a0manufacturing\u00a0and sales of\u00a0industrial and domestic appliances. They develop several projects and subassemblies in different countries around the globe, using local expertise and technology. In the specific case of industrial washing machines, there are\u00a0different teams, coordinated at a central level,\u00a0that develop a new product\u00a0from scratch to the final design. Mechanical engineers\u00a0must study the\u00a0metal structure\u00a0and the\u00a0engine, in cooperation with electrical engineers. Designers must\u00a0create the external \u201cenvelop\u201d\u00a0to satisfy certain aesthetical criteria, but think about the interface between the machine and the user, who must find it easy and friendly. Electronic [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":9572,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[31,33],"tags":[],"class_list":["post-10499","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-case-study-it","category-industriale"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Custom extruded heatsink in natural convection for washing machines - Priatherm<\/title>\n<meta name=\"description\" content=\"The customer needed a peculiar custom heat sink that proved Priatherm&#039;s flexibility in heat sink design and manufacturing.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/priatherm.com\/it\/custom-extruded-heatsink-in-natural-convection-for-washing-machines\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Custom extruded heatsink in natural convection for washing machines - 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